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1. Real-world characterization of carbonaceous substances from industrial stationary and process source emissions

Author:
Min Cui; Yuanyuan Xu; Fan Zhang; Caiqing Yan; Jun Li; Mei Zheng; Yingjun Chen
Source:
Science of the total environment 2023 v.854 pp. 158505
ISSN:
0048-9697
Subject:
air quality; alkanes; climate change; coal; combustion; dust; environment; human health; organic carbon; particulates; uncertainty
Abstract:
... Carbonaceous substances in industrial emissions are harmful to human health, air quality, and climate change. Owing to the existence of various fuel types and different technological processes, the characterization of carbonaceous substances from industrial emissions varies significantly, which causes a large uncertainty in source apportionment. Therefore, nine typical industrial sources were sele ...
DOI:
10.1016/j.scitotenv.2022.158505

2. 2-O-Methylated β-Cyclodextrin as an Effective Building Block to Construct Supramolecular Assemblies with Various Morphologies and Molecular Arrangements

Author:
Justine M. Kalaw; Hajime Shigemitsu; Toshiyuki Kida
Source:
Langmuir 2022 v.38 no.27 pp. 8407-8415
ISSN:
1520-5827
Subject:
alkanes; carbonates; evaporation; graphene; methanol; organogels; polyethylene terephthalates; solvents
Abstract:
... The preparation of supramolecular cyclodextrin (CD) assemblies and control of their assembly mode through guest inclusion in CD cavities have been actively studied. Contrarily, there are limited reports on the control of the assembly mode of guest-free CD molecules by external stimuli. Herein, we report the use of 2-O-methylated β-cyclodextrin (2-Me-β-CD) as an effective building block in fabricat ...
DOI:
10.1021/acs.langmuir.2c00980

3. ALGLIQOL: A two stage integrated process towards synthesis of renewable transportation fuel via catalytic hydrothermal liquefaction of lipid enriched microalgae biomass and distillation

Author:
Gargi Goswami; Ratan Kumar; Ankan Sinha; Boudhnath Birazee; Babul Chandra Dutta; Sanjay Bhutani; Debasish Das
Source:
Energy conversion and management 2022 v.263 pp. 115696
ISSN:
0196-8904
Subject:
administrative management; alkanes; aromatic compounds; biodiesel; biomass; catalysts; diesel fuel; distillation; energy conversion; feedstocks; formic acid; gasoline; hydrothermal liquefaction; lipids; liquids; microalgae; oils; temperature; viscosity
Abstract:
... Present study demonstrates a two-stage integrated process for production of hydrocarbon oil designated as ALGLIQOL, with potential to be utilized as liquid transportation fuel. Stage-I involves in-situ catalytic hydrothermal liquefaction (HTL) of microalgae biomass to produce biocrude oil and stage-II involves distillation of biocrude to hydrocarbon oil. A strategic attempt has been implemented to ...
DOI:
10.1016/j.enconman.2022.115696

4. Alkane-tolerant worm-like micelles based on assembled surfactants

Author:
Dongfang Liu; Guiwen Deng; Yaxin Zhao; Yuanyuan Zhang; Zhouyu Wang; Zhiyu Huang; Li Wang
Source:
Colloids and surfaces 2022 v.651 pp. 129608
ISSN:
0927-7757
Subject:
alkanes; aqueous solutions; hydrophobicity; micelles; microstructure; oils; sodium; solubility; viscoelasticity; viscosity
Abstract:
... Self-assembly of surfactants in aqueous solution can form a variety of aggregate structures, among which worm-like micelles (WLMs) have attracted much attention due to their excellent viscoelasticity. The addition of oil often leads to a decrease in the viscosity of WLMs, which is closely related to the location of oil dissolution within the WLMs. Whether oil could induce a viscosity increase in W ...
DOI:
10.1016/j.colsurfa.2022.129608

5. Alkyl thiol grafted silver nanoparticle–decorated cellulose nanocrystals on poly(lactic acid) composites for enhanced antibacterial activity and toughening effects

Author:
Lili Song; Yunfeng Guo; Jing Fan; Xinyan Fan; Yanjun Xie; Zefang Xiao; Haigang Wang; Daxin Liang; Yonggui Wang
Source:
Composites 2022 pp. 107231
ISSN:
1359-835X
Subject:
alkanes; antibacterial properties; brittleness; cellulose; composite films; hydrophobicity; nanocrystals; nanosilver; polymers; silver; thiols
Abstract:
... Poly(lactic acid) (PLA), a well-known environmentally friendly polymer, however, due to its brittleness and poor antibacterial properties, it is restricted in several aspects. In this study, alkyl thiol-grafted Ag nanoparticle (NP)-decorated cellulose nanocrystals (ATₓ-Ag-CNCs) were obtained by modifying Ag NP-decorated CNCs (Ag-CNCs) with 1-decanethiol, 1-tetradecanethiol and 1-octadecanethiol, a ...
DOI:
10.1016/j.compositesa.2022.107231

6. Allelopathic potential of the extracts of non-galled stems and globoid stem galls of Eremanthus erythropappus (DC) McLeish (Asteraceae)

Author:
Nina de Castro Jorge; Lubia M. Guedes; Narciso Aguilera; José Becerra; Rosy Mary dos Santos Isaias
Source:
Biochemical systematics and ecology 2022 v.100 no. pp. 104379
ISSN:
0305-1978
Subject:
Eremanthus; Lactuca sativa; Neolasioptera; alkanes; allelopathy; anti-infective agents; chemical composition; chemotaxonomy; germination; host plants; indigenous species; leaves; lettuce; medicine; methanol; morphs; plantlets; secondary metabolites; sesquiterpenoids; triterpenoids; Brazil
Abstract:
... Eremanthus erythropappus (DC) McLeisch (Asteraceae), commonly known as “candeia”, is a native species of Minas Gerais state, Brazil, frequently used in medicine as an anti-inflammatory and antimicrobial agent. Eremanthus erythropappus hosts six different gall morphotypes, whose associated inducers manipulate plant cells and tissues and stimulate the neo-synthesis, maintenance, or inhibition of bot ...
DOI:
10.1016/j.bse.2021.104379

7. Anaerobic oxidation of petroleum hydrocarbons in enrichment cultures from sediments of the Gorevoy Utes natural oil seep under methanogenic and sulfate-reducing conditions

Author:
O. N. Pavlova; O. N. Izosimova; S. M. Chernitsyna; V. G. Ivanov; T. V. Pogodaeva; A. V. Khabuev; A. G. Gorshkov; T. I. Zemskaya
Source:
Microbial ecology 2022 v.83 no.4 pp. 899-915
ISSN:
0095-3628
Subject:
Armatimonadetes; Caldiserica; Chloroflexi; Firmicutes; Methanomicrobia; Planctomycetes; alkanes; bacterial communities; delta-Proteobacteria; genes; methanogens; oils; oxidation; petroleum; sulfates
Abstract:
... This article presents the first experimental data on the ability of microbial communities from sediments of the Gorevoy Utes natural oil seep to degrade petroleum hydrocarbons under anaerobic conditions. Like in marine ecosystems associated with oil discharge, available electron acceptors, in particular sulfate ions, affect the composition of the microbial community and the degree of hydrocarbon c ...
DOI:
10.1007/s00248-021-01802-y

8. Analysis of aroma-active compounds in four Chinese dry-cured hams based on GC-O combined with AEDA and frequency detection methods

Author:
Shui Jiang; Dong Xia; Xiaoming Wang; Yaozhou Zhu; Gaole Chen; Yuan Liu
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.153 pp. 112497
ISSN:
0023-6438
Subject:
aldehydes; alkanes; cured meats; food analysis; gas chromatography-mass spectrometry; ham; meat quality; octenol; odor compounds; olfactometry; pyrazines; sulfides; China
Abstract:
... Chinese dry-cured hams have become increasingly appreciated by consumers because of their unique flavor characteristics. In this study, the volatile compounds of four Yunnan dry-cured hams (Xuanwei, Nuodeng, Sanchuan, and Saba) were characterized by monolithic material sorptive extraction (MMSE) and GC-MS. A total of 66 volatile compounds were identified, of which aldehydes and alkanes were the mo ...
DOI:
10.1016/j.lwt.2021.112497

9. Application of Renormalization Corrections to SAFT-VR Mie

Author:
Sonja A. M. Smith; Jamie T. Cripwell; Cara E. Schwarz
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.34 pp. 12797-12812
ISSN:
1520-5045
Subject:
alkanes; chemistry; equations; models; process design
Abstract:
... SAFT-VR Mie is an established equation of state that offers excellent holistic descriptions of fluid behavior. However, the model does not account for the long-wavelength density fluctuations encountered in the critical region and can therefore not describe this region accurately. To this end, SAFT-VR Mie is treated with renormalization corrections, yielding SAFT-VR Mie + RG. This procedure is bas ...
DOI:
10.1021/acs.iecr.2c02004

10. Assessing spatiotemporal sources of biogenic and anthropogenic sedimentary organic matter from the mainstream Haihe River, China: Using n-alkanes as indicators

Author:
Yang Liu; Yong He; Yu Liu; Shu Tao; WenXin Liu
Source:
Science of the total environment 2022 v.834 pp. 155382
ISSN:
0048-9697
Subject:
alkanes; carbon cycle; environment; fossil fuels; hybrids; industrialization; oils; rivers; sediments; total organic carbon; transportation; urbanization; China
Abstract:
... Sedimentary organic matter (SOM) plays an important role in the transportation and transformation of various pollutants and the carbon cycle in aquatic and terrestrial ecosystems, especially for seagoing rivers. However, few studies have focused on the sources and factors of SOM in rivers under the significant pressure of high urbanization and industrialization. In this study, we adopted the molec ...
DOI:
10.1016/j.scitotenv.2022.155382

11. Assessing the source and delivery processes of organic carbon within a mixed land use catchment using a combined n-alkane and carbon loss modelling approach

Author:
C. Wiltshire; M. Glendell; T. W. Waine; R. C. Grabowski; J. Meersmans
Source:
Journal of soils and sediments 2022 v.22 no.5 pp. 1629-1642
ISSN:
1439-0108
Subject:
alkanes; arable soils; biomarkers; eroded soils; freshwater; global carbon budget; land use; landscapes; leaves; riparian buffers; rivers; sediments; soil erosion; soil organic carbon; spatial data; spatial variation; stream channels; watersheds; woodland soils; woodlands
Abstract:
... PURPOSE: Understanding fluxes of soil organic carbon (OC) from the terrestrial to aquatic environments is crucial to evaluate their importance within the global carbon cycle. Sediment fingerprinting (SF) is increasingly used to identify land use-specific sources of OC, and, while this approach estimates the relative contribution of different sources to OC load in waterways, the high degree of spat ...
DOI:
10.1007/s11368-022-03197-w

12. Assessment of bioremediation potential of petroleum-contaminated soils from the shanbei oilfield of China revealed by qPCR and high throughput sequencing

Author:
Manli Wu; Zeliang Liu; Huan Gao; Jinghua Gao; Yinrui Xu; Yawen Ou
Source:
Chemosphere 2022 v.308 pp. 136446
ISSN:
0045-6535
Subject:
Acinetobacter; Pseudomonas; Stenotrophomonas; alkanes; biodegradation; bioremediation; keystone species; microbiome; oil fields; oils; petroleum; quantitative polymerase chain reaction; risk; soil; soil pollution; China
Abstract:
... With the crude oil exploration activities in the Shanbei oilfield of China, the risk of soil contamination with crude oil spills has become a major concern. This study aimed at assessing the bioremediation potential of the petroleum polluted soils by investigating the expression of key functional genes decoding alkane and aromatic component degradation using an array of primers and real-time quant ...
DOI:
10.1016/j.chemosphere.2022.136446

13. Asymmetric Effect on the Length Dependence of Oligo(Phenylene ethynylene)-Based Molecular Junctions

Author:
Yinqi Fan; Sylvain Pitie; Chenguang Liu; Cezhou Zhao; Chun Zhao; Mahamadou Seydou; Yannick J. Dappe; Richard J. Nichols; Li Yang
Source:
Journal of physical chemistry 2022 v.126 no.7 pp. 3635-3645
ISSN:
1932-7455
Subject:
acetylene; alkanes; asymmetry; electrical conductivity; electrodes; graphene
Abstract:
... It is well known that the electrical conductance of molecular junctions in the tunneling regime varies exponentially with the length of the molecular backbone. This behavior is strongly influenced by anchoring groups, which connect the molecular backbone to the electrodes and locate the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) resonances with respect ...
DOI:
10.1021/acs.jpcc.1c07654

14. Atomic Edge-Guided Polyethylene Crystallization on Monolayer Two-Dimensional Materials

Author:
Dong Zhou; Miguel Fuentes-Cabrera; Akash Singh; Raymond R. Unocic; Jan Michael Y. Carrillo; Kai Xiao; Yumeng Li; Bo Li
Source:
Macromolecules 2022 v.55 no.2 pp. 559-567
ISSN:
1520-5835
Subject:
alkanes; crystallization; molecular dynamics; polyethylene
Abstract:
... Here, we combine an advanced synthesis of two-dimensional (2D) materials (MoSe₂) having well-defined atomic edge configurations with ab initio and atomistic molecular dynamics (MD) simulations to study how atomic edges interact with polyethylene (HDPE) chains in a dilute solution assembly process. Our results reveal that Mo-terminated zigzag (Mo-ZZ) edges act as preferred nucleation sites and stro ...
DOI:
10.1021/acs.macromol.1c01978

15. Baseline levels and characterization of hydrocarbons in surface marine sediments along the transportation corridor in Hudson Bay: A multivariate analysis of n-alkanes, PAHs and biomarkers

Author:
Gary A. Stern; Colin R. Macdonald; Paloma Calabria Carvalho; Teresinha Wolfe; Fernanda Ferraz
Source:
Science of the total environment 2023 v.855 pp. 158718
ISSN:
0048-9697
Subject:
alkanes; biomarkers; climate; environment; freshwater; fuel oils; lotic systems; molecular weight; multivariate analysis; organic carbon; particulate organic matter; peat; petroleum; primary productivity; riparian areas; risk; sediments; transportation; Arctic region; Hudson Bay
Abstract:
... Hudson Bay is a small arctic inland shelf sea which receives large amounts of freshwater from riverine discharges, with marine flow from the north and the Atlantic. A warming climate has resulted in an expanded open water season which will result in an increase in shipping of fuel oil and petroleum to communities and mines on the western shore, increasing the risk of hydrocarbon releases. To evalu ...
DOI:
10.1016/j.scitotenv.2022.158718

16. Behavior of Long-Chain Hydrocarbons at High Pressures and Temperatures

Author:
Abhisek Basu; Mainak Mookherjee; Ericka McMahan; Bianca Haberl; Reinhard Boehler
Source:
Journal of physical chemistry 2022 v.126 no.13 pp. 2530-2537
ISSN:
1520-5207
Subject:
alkanes; byproducts; physical chemistry; spectroscopy; temperature
Abstract:
... Although long-chain aliphatic hydrocarbons are documented in meteorites, their origin is poorly understood. A key question is whether they are pristine or a byproduct of terrestrial alteration? To understand if these long-chain hydrocarbons are indigenous, it will be important to explore their thermodynamic and mechanical stability at conditions experienced by extraterrestrial objects during atmos ...
DOI:
10.1021/acs.jpcb.1c10786

17. Biological relevance of VOCs emanating from red onions infected with Erwinia (Pectobacterium) carotovora under different storage conditions

Author:
Shikha Tiwari; Umang Goswami; Adinath Kate; Bharat Modhera; Manoj Kumar Tripathi; Debabandya Mohapatra
Source:
Postharvest biology and technology 2022 v.184 pp. 111761
ISSN:
0925-5214
Subject:
Erwinia; Pectobacterium carotovorum; alcohols; aldehydes; alkanes; biomarkers; biosensors; biosynthesis; discriminant analysis; heat; horticulture; least squares; microbial activity; principal component analysis; spoilage; storage temperature; storage time; sulfur; volatile organic compounds
Abstract:
... Volatile organic compounds (VOCs) are generated in different commodities through various biosynthetic pathways. They act as biomarkers for different infections and metabolisms and can be instrumental in the development of biosensors for monitoring the health of stored horticultural commodities. Healthy onions and samples infected with Pectobacter Erwinia carotovora were stored at different conditi ...
DOI:
10.1016/j.postharvbio.2021.111761

18. Biomarkers reveal two paramount Pliocene-Pleistocene connectivity events in the Caspian Sea Basin

Author:
Iuliana Vasiliev; Marcel T.J. van der Meer; Marius Stoica; Wout Krijgsman; Gert-Jan Reichart; Sergei Lazarev; Geanina A. Butiseacă; Eva M. Niedermeyer; Elmira Aliyeva; Christian G.C. van Baak; Andreas Mulch
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2022 v.587 pp. 110802
ISSN:
0031-0182
Subject:
Pleistocene epoch; Pliocene epoch; air temperature; alkanes; basins; biomarkers; cold; glycerol; hydrology; isoprenoids; oceans; organic matter; palaeogeography; paleoclimatology; paleoecology; plants (botany); Arctic region; Black Sea; Caspian Sea
Abstract:
... Landlocked basins like the Caspian Sea are highly sensitive to changes in their hydrological budget, especially at times of disconnection from the global ocean. Here, we reconstruct the Pliocene to Pleistocene palaeohydrological and palaeoenvironmental changes occurring in the South Caspian Basin between ~3.6 and ~ 1.9 Ma, using compound-specific hydrogen isotope (δ²H) data on long chain n-alkanes ...
DOI:
10.1016/j.palaeo.2021.110802

19. Biosurfactants produced by novel facultative-halophilic Bacillus sp. XT-2 with biodegradation of long chain n-alkane and the application for enhancing waxy oil recovery

Author:
Xiao-Tong Wang; Bin Liu; Xi-Zhe Li; Wei Lin; Dong-An Li; Hao Dong; Lei Wang
Source:
Energy 2022 v.240 pp. 122802
ISSN:
0360-5442
Subject:
Bacillus (bacteria); alkanes; biodegradation; bioremediation; biosurfactants; emulsifying; energy; mass spectrometry; oils; petroleum; surfactin; synthetic genes
Abstract:
... Efficient biosurfactant producers with hydrocarbon degradation capability and harsh environment adaptability are precious bioresources for microbial enhanced oil recovery and petroleum-related bioremediation. In this study, a novel facultative-halophilic strain Bacillus sp. XT-2 was isolated and shown to degrade long-chain hydrocarbons along with lipopeptide biosurfactants production. The biosurfa ...
DOI:
10.1016/j.energy.2021.122802

20. Changes in Chemical Composition and Copepod Toxicity during Petroleum Photo-oxidation

Author:
Samuel D. Katz; Haining Chen; David M. Fields; Erin C. Beirne; Phoebe Keyes; Greg T. Drozd; Christoph Aeppli
Source:
Environmental science & technology 2022 v.56 no.9 pp. 5552-5562
ISSN:
1520-5851
Subject:
Acartia tonsa; Calanus finmarchicus; alkanes; bioaccumulation; biomimetics; chemical composition; irradiation; lipids; mortality; oil spills; oils; petroleum; photooxidation; solubility; toxicity
Abstract:
... Photoproducts can be formed rapidly in the initial phase of a marine oil spill. However, their toxicity is not well understood. In this study, oil was irradiated, chemically characterized, and tested for toxicity in three copepod species (Acartia tonsa, Temora longicornis, and Calanus finmarchicus). Irradiation led to a depletion of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes in oil resi ...
DOI:
10.1021/acs.est.2c00251

21. Characterisation of radiogenic monoalkenes in Australian oils and condensate

Author:
Christopher J. Boreham; Neel Jinadasa; Jacob Sohn; Ziqing Hong; Christopher Blake
Source:
Organic geochemistry 2022 v.163 pp. 104332
ISSN:
0146-6380
Subject:
Early Cretaceous epoch; Mesoproterozoic era; alkanes; alkenes; carbon; cis-trans isomers; cleavage (chemistry); condensates; crosslinking; geochemistry; hydrogen; liquids; oil fields; oils; probability; radiolysis; thermodynamics
Abstract:
... Thirteen Australian oils and one condensate, covering oil reservoir ages from Mesoproterozoic to Early Cretaceous, show monoalkene contents varying from 0.01 to 22.3 wt% of the whole liquid. Radiolysis of saturated hydrocarbons is the most likely process leading to oils with high alkene contents. The major radiolytic component is an unresolved complex mixture (UCM). The bulk of the resolved alkene ...
DOI:
10.1016/j.orggeochem.2021.104332

22. Characterization and biodegradability assessment of water-soluble fraction of oily sludge using stir bar sorptive extraction and GCxGC-TOF MS

Author:
Priyankar Chand; Suryendu Dutta; Suparna Mukherji
Source:
Environmental pollution 2022 v.304 pp. 119177
ISSN:
0269-7491
Subject:
Bacillus cereus; Rhodococcus ruber; alkanes; biodegradation; biphenyl; groundwater contamination; humans; naphthalene; phenol; pyridines; quinoline; sludge; soil; toxicity; water solubility
Abstract:
... Percolation of water through oily sludge during storage and handling of the sludge can cause soil and groundwater contamination. In this study, oily sludge from a refinery was equilibrated with water to obtain the water-soluble fraction (WSF) of oily sludge. The WSF had dissolved organic carbon (DOC) of 166 mg/L. Human cell line-based toxicity assay revealed IC₅₀ of 41 mg/L indicating its toxic na ...
DOI:
10.1016/j.envpol.2022.119177

23. Characterization of aroma profiles and aroma-active compounds in high-salt and low-salt shrimp paste by molecular sensory science

Author:
Jing Yu; Kuan Lu; Jiwei Zi; Xihong Yang; Wancui Xie
Source:
Food bioscience 2022 v.45 pp. 101470
ISSN:
2212-4292
Subject:
alkanes; cheeses; electronic nose; fermentation; odors; pyrazines; sensory evaluation; shrimp; umami
Abstract:
... Flavor characteristics of raw shrimp, high-salt and low-salt shrimp paste were evaluated and compared by sensory analysis, headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) and solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). In addition, aroma profiles and aroma-active compounds in these three samples were analyzed by solvent-assisted flavor evaporat ...
DOI:
10.1016/j.fbio.2021.101470

24. Characterization of bacterial community in oil-contaminated soil and its biodegradation efficiency of high molecular weight (>C40) hydrocarbon

Author:
Balakrishnan Muthukumar; Punniyakotti Parthipan; Mohamad S. AlSalhi; Natarajan Srinivasa Prabhu; T. Nageswara Rao; Sandhanasamy Devanesan; Murali Kannan Maruthamuthu; Aruliah Rajasekar
Source:
Chemosphere 2022 v.289 pp. 133168
ISSN:
0045-6535
Subject:
Pseudomonas aeruginosa; alkanes; anthracenes; bacterial communities; benzopyrenes; biodegradation; biosurfactants; carbon; emulsifying; gas chromatography; mass spectrometry; metagenomics; molecular weight; oils; petroleum; polluted soils; rhamnolipids
Abstract:
... In this study, two biosurfactant producing Pseudomonas aeruginosa sp. were isolated from motor oil contaminated soil for crude oil, alkane and PAH degradation studies. Metagenomics analysis identified as proteobacteria phyla was the dominant. Isolated two bacterial species were well grown in mineral salt medium with 1% of crude oil, alkanes (dotriacontane and tetratetracontane) and PAH (pyrene, be ...
DOI:
10.1016/j.chemosphere.2021.133168

25. Characterization of carbonaceous substances emitted from residential solid fuel combustion using real-world data from the Beijing-Tianjin-Hebei region

Author:
Min Cui; Yuanyuan Xu; Binbin Yu; Lin Liu; Jun Li; Yingjun Chen
Source:
Science of the total environment 2022 v.837 pp. 155529
ISSN:
0048-9697
Subject:
air quality; alkanes; climate change; coal; combustion efficiency; environment; fuel combustion; heating systems; human health; organic carbon
Abstract:
... Residential solid fuel emissions are among the most important sources of carbonaceous substances that exert harmful effects on air quality, human health and climate change. Considering the constantly updated emission reduction policies for residential solid fuel combustion in the Beijing-Tianjin-Hebei (BTH) region, the emission data for the source should updated in a timely manner. Testing was per ...
DOI:
10.1016/j.scitotenv.2022.155529

26. Characterization of the organic functional group composition and sources of summertime aerosols in an eastern city of China

Author:
Kaihui Xia; Sheng-Shi Mei; Cheng-Cheng Liu; Hao Liu; Renmin Yuan; Shang Liu
Source:
Atmospheric environment 2022 v.277 pp. 119078
ISSN:
1352-2310
Subject:
Fourier transform infrared spectroscopy; aerosols; air; alkanes; biomass; carboxylic acids; detritus; dust; environment; fossil fuels; fuel combustion; pollution; river deltas; summer; China; Yangtze River
Abstract:
... An intensive field campaign was carried out in Hefei, a city in the Yangtze River Delta in eastern China, in the summer of 2020 to examine the composition and sources of organic aerosols (OA). Time-resolved filter samples were collected and quantified to obtain the concentrations for organic functional groups (OFGs), including alkane, hydroxyl, carboxylic acid, non-acid carbonyl, amine, and aromat ...
DOI:
10.1016/j.atmosenv.2022.119078

27. Characterizations and comparison of low sulfur fuel oils compliant with 2020 global sulfur cap regulation for international shipping

Author:
Robert K. Nelson; Alan G. Scarlett; Marthe Monique Gagnon; Alex I. Holman; Christopher M. Reddy; Paul A. Sutton; Kliti Grice
Source:
Marine pollution bulletin 2022 v.180 pp. 113791
ISSN:
0025-326X
Subject:
alkanes; biomarkers; forensic sciences; heterocyclic compounds; marine pollution; sulfur
Abstract:
... The International Marine Organization 2020 Global Sulfur Cap requires ships to burn fuels with <0.50% S and some countries require <0.10% S in certain Sulfur Emission Control Areas but little is known about these new types of fuels. Using both traditional GC–MS and more advanced chromatographic and mass spectrometry techniques, plus stable isotopic, δ¹³C and δ²H, analyses of pristane, phytane and ...
DOI:
10.1016/j.marpolbul.2022.113791

28. Chemical fingerprinting and characterization of spilled oils and burnt soot particles – A case study on the Sanchi oil tanker collision in the East China Sea

Author:
Fang Yin; Zhibo Song; Zhiwei He; Boyu Qin; Gerald F. John; Li Zhang; Penghao Su; Wenshu Zhang; Tao Yang
Source:
Science of the total environment 2022 v.824 pp. 153896
ISSN:
0048-9697
Subject:
accidents; alkanes; case studies; combustion; condensates; environment; evaporation; flammability; fuel oils; fume hoods; soot; tankers; volatilization; East China Sea
Abstract:
... The condensate spill accident from the Sanchi oil tanker collision in the East China Sea is unique in world history. To date, the spilled and burnt amounts of condensate remain unknown. The present study demonstrates the chemical fingerprints of a surrogate condensate (SC) from the same source, and of the carried heavy fuel oil (HFO) of the Sanchi accident. The evaporative features of the condensa ...
DOI:
10.1016/j.scitotenv.2022.153896

29. Chemical profiles of PM2.5 emitted from various anthropogenic sources of the Eastern Mediterranean: Cooking, wood burning, and diesel generators

Author:
Marc Fadel; Frédéric Ledoux; Marianne Seigneur; Konstantina Oikonomou; Jean Sciare; Dominique Courcot; Charbel Afif
Source:
Environmental research 2022 v.211 pp. 113032
ISSN:
0013-9351
Subject:
alkanes; beef; charcoal; chickens; furans; generators (equipment); polychlorinated biphenyls; research; water solubility; wood
Abstract:
... The chemical profiles of PM₂.₅ emitted from a non-road diesel generator, wood burning and cooking activities including chicken and beef charcoal grilling and general cooking activities were determined. The characterization included the carbonaceous fraction (OC/EC), water-soluble ions, elements, and organic species comprising n-alkanes, polycyclic aromatic hydrocarbons, carboxylic acids, levogluco ...
DOI:
10.1016/j.envres.2022.113032

30. Chemicals in European residences – Part I: A review of emissions, concentrations and health effects of volatile organic compounds (VOCs)

Author:
Christos H. Halios; Charlotte Landeg-Cox; Scott D. Lowther; Alice Middleton; Tim Marczylo; Sani Dimitroulopoulou
Source:
Science of the total environment 2022 v.839 pp. 156201
ISSN:
0048-9697
Subject:
acetone; air; air quality; alkanes; bricks; carcinogenicity; environment; formaldehyde; guidelines; heat; monitoring; terpenoids; wood
Abstract:
... One of the more important classes of potentially toxic indoor air chemicals are the Volatile Organic Compounds (VOCs). However, due to a limited understanding of the relationships between indoor concentrations of individual VOCs and health outcomes, there are currently no universal health-based guideline values for VOCs within Europe including the UK. In this study, a systematic search was conduct ...
DOI:
10.1016/j.scitotenv.2022.156201

31. Chiral hydrogen-bonded organic frameworks used as a chiral stationary phase for chiral separation in gas chromatography

Author:
Wei Wang; Yukui Zhang; Bo Tang; Huipeng Hou; Shanshan Tang; Aiqin Luo
Source:
Journal of chromatography 2022 v.1675 pp. 463150
ISSN:
0021-9673
Subject:
adsorption; alkanes; chemical species; density functional theory; drugs; enantiomers; fluorescence; gas chromatography; hydrogen bonding; pollutants; pollution control; standard deviation
Abstract:
... Hydrogen-bonded organic frameworks (HOFs) are two dimensional (2D) or three dimensional (3D) porous crystalline materials constructed by Hydrogen bond interaction. In recent years, a variety of functional HOF materials have been successfully synthesized and used in structural identification, environmental pollutant removal, chiral resolution, drug delivery, fluorescence sensing, etc. Here, we firs ...
DOI:
10.1016/j.chroma.2022.463150

32. Chitosan-based composites reinforced with antibacterial flexible wood membrane for rapid hemostasis

Author:
Qingwu Wang; Tianyu Luo; Xiaodong Xu; Qiaoyi Han; Xin Xu; Xingxia Zhang; Xia Liu; Qiang Shi
Source:
International journal of biological macromolecules 2022 v.215 pp. 450-464
ISSN:
0141-8130
Subject:
absorption; alkanes; antibacterial properties; chitosan; hemicellulose; hemostasis; hydrophobicity; lignin; nanosilver; polyethylene glycol; schiff bases; sodium alginate; synergism; wood
Abstract:
... Irregular hemorrhagic traumas always threaten the health of patients due to uncontrollable bleeding and wound infections. The traditional hemostatic materials show dissatisfactory hemostatic efficiency and antibacterial activity in solving these potential bleeding dangers. Herein, we proposed a kind of composites based on flexible wood membrane (FWM) loaded with chitosan/alginate derivative for ac ...
DOI:
10.1016/j.ijbiomac.2022.06.074

33. Chlorinated paraffins – A historical consideration including remarks on their complexity

Author:
Walter Vetter; Jannik Sprengel; Kerstin Krätschmer
Source:
Chemosphere 2022 v.287 pp. 132032
ISSN:
0045-6535
Subject:
alkanes; chlorination; industrial applications; niches
Abstract:
... Chlorinated paraffins (CPs) are high production volume chemicals currently produced and used in higher quantities than any other medium-size polyhalogenated compound (class). In addition, the composition of industrial CP mixtures is highly complex and poorly understood. In this article, we searched in the literature for the beginning of the chlorination of alkanes and how this substance class deve ...
DOI:
10.1016/j.chemosphere.2021.132032

34. Comparative Analysis of Epicuticular Lipids in Locusta migratoria and Calliptamus italicus: A Possible Role in Susceptibility to Entomopathogenic Fungi

Author:
Mariya D. Ganina; Maksim V. Tyurin; Ulzhalgas T. Zhumatayeva; Georgy R. Lednev; Sergey V. Morozov; Vadim Yu. Kryukov
Source:
Insects 2022 v.13 no.8 pp. -
ISSN:
2075-4450
Subject:
Beauveria bassiana; Calliptamus; Locusta migratoria; Metarhizium robertsii; alkanes; conidia; fungi; gas chromatography; germination; lipid composition; lipids; mass spectrometry; migratory behavior
Abstract:
... Cuticular lipids protect insects from desiccation and may determine resistance to fungal pathogens. Nonetheless, the trade-off between these lipid functions is still poorly understood. The migratory locust Locusta migratoria and the Italian locust Calliptamus italicus have dissimilar hygrothermal preferences: L. migratoria inhabits areas near water bodies with a reed bed, and C. italicus exploits ...
DOI:
10.3390/insects13080736

35. Comparative profiles of the cuticular chemicals and transpiration barrier properties in various organs of Chinese flowering cabbage and Chinese kale

Author:
Hua Huang; Ying Hu; Ling Wang; Fengjun Li; Youxia Shan; Qiaoqiao Lian; Yueming Jiang
Source:
Physiologia plantarum 2022 v.174 no.2 pp. e13650
ISSN:
0031-9317
Subject:
Brassica oleracea var. alboglabra; alkanes; cabbage; carbon; chemical composition; cutin; hydrophobicity; petioles; plant cuticle; transpiration
Abstract:
... Plant cuticle as hydrophobic barrier covers almost all aerial plant organs. Herein the cuticular chemical components and the transpiration of various organs of Chinese flowering cabbage (CFC) and Chinese kale (CK) were comprehensively characterized. Numerous species‐ and organ‐specific differences in morphological, chemical, and physiological levels were found. The various organs were relatively s ...
DOI:
10.1111/ppl.13650

36. Complete Genome Sequence of Pseudomonas chloritidismutans 6L11 with Plant Growth–Promoting and Salt-Tolerant Properties

Author:
Dandan Zhou; Zhiqiu Yin; Xujian Li; Yanru Cui; Qi Cheng; Binghai Du; Kai Liu; Chengqiang Wang; Yanqin Ding
Source:
Molecular plant-microbe interactions 2022 v.35 no.9 pp. 870-874
ISSN:
1943-7706
Subject:
Pseudomonas; alkanes; ammonia; aquaculture; bacteria; biomass; bioreactors; chlorates; denitrification; genome; halogens; industrial wastewater; nitrates; nucleotide sequences; oxidoreductases; phosphorus; pollutants; proteome; salt tolerance; sewage
Abstract:
... Pseudomonas chloritidismutans is a facultative anaerobic and chlorate-reducing bacterium. Many strains of chlorate-reducing P. chloritidismutans are suitable for biotechnological applications because they can undergo ammonia assimilation, aerobic denitrification, phosphorus removal, and pollutant degradation (Hou et al. 2021; Wolterink et al. 2002). Chlorate-reducing bacteria were mostly isolated ...
DOI:
10.1094/MPMI-01-22-0029-A

37. Compositional variations of primary organic aerosol tracers of PM2.5 in Shanghai during the 2019 China International Import Expo

Author:
Ruimiao Di; Yingge Ma; Jialiang Feng; Shuhui Zhu; Min Zhou; Liping Qiao; Haixia Dai; Junjie Tian; Cheng Huang
Source:
Atmospheric research 2022 v.275 pp. 106205
ISSN:
0169-8095
Subject:
aerosols; alkanes; biomass; dust; dust storms; pollution; research; temporal variation; traffic; China
Abstract:
... To reflect the changes in pollution sources and evaluate the control efficiency more reasonably, seven groups of PM₂.₅-bound primary organic aerosol (POA) tracers indicative of pollution sources in urban Shanghai were analyzed before (BP), during (CIIE) and after (AP) the second China International Import Expo (CIIE, October 28–November 17, 2019). Combined with meteorological conditions, correlati ...
DOI:
10.1016/j.atmosres.2022.106205

38. Conservation with elephants and agricultural intensification: effects on lignin and n-alkanes in soils of sub-Saharan Africa

Author:
A. Sandhage-Hofmann; S. Angombe; L. Kindermann; A. Linstädter; R. Mörchen
Source:
Geoderma 2022 v.425 pp. 116009
ISSN:
0016-7061
Subject:
Arenosols; alkanes; clay; cropland; feces; intensive farming; lignin; natural resources conservation; oxidation; rangelands; savannas; soil organic carbon; solvents; tillage; wildlife; wildlife management; woodlands; woody biomass; Sub-Saharan Africa
Abstract:
... Nature conservation is currently shaping many terrestrial ecosystems in Africa. This is particularly evident in Sub-Saharan Africa (SSA), where conservation is intended to recover wildlife populations, with special focus on elephants. Rising numbers of elephants induce woody biomass losses but increase soil organic carbon (SOC) stocks from decaying wood and dung. We hypothesized that these increas ...
DOI:
10.1016/j.geoderma.2022.116009

39. Construction of surrogate fuels for lower freezing point diesels based on component and functional groups analysis

Author:
Jie Jiang; Linqi Zhang; Zhiyong Wu; Dezhi Zhou; Yong Qian; Xingcai Lu
Source:
Fuel processing technology 2022 v.235 pp. 107359
ISSN:
0378-3820
Subject:
algorithms; alkanes; carbon; comprehensive two-dimensional gas chromatography; distillation; mass spectrometry; nuclear magnetic resonance spectroscopy; viscosity
Abstract:
... For the purpose of formulating surrogate fuels for two lower freezing point diesels, namely −35# diesel and − 50# diesel, two-dimensional gas chromatography with time-of-flight mass spectrometry (GC × GC–TOFMS) was utilized to analyze their components in detail. And nuclear magnetic resonance (NMR) spectroscopy was used to obtain the composition of functional groups in hydrocarbons, which were cla ...
DOI:
10.1016/j.fuproc.2022.107359

40. Creating values from wastes: Producing biofuels from waste cooking oil via a tandem vapor-phase hydrotreating process

Author:
Jia Wang; Jianchun Jiang; Dongxian Li; Xianzhi Meng; Guowu Zhan; Yunpu Wang; Aihua Zhang; Yunjuan Sun; Roger Ruan; Arthur J. Ragauskas
Source:
Applied energy 2022 v.323 pp. 119629
ISSN:
0306-2619
Subject:
Cornus wilsoniana; alkanes; biofuels; catalysts; energy; feedstocks; hydrogenation; liquids; palm kernel oil; pyrolysis; soapstock; temperature
Abstract:
... This study is focused on producing biofuels from waste oils via a tandem vapor-phase hydrotreating process in a pressurized two-stage fixed bed reactor over a bifunctional Ni/Al₂O₃-SiO₂ catalyst under 0.25 MPa H₂. A 100% hydrodeoxygenation efficiency both in liquid and gas products was observed, yielding 83.9 wt% C₅-C₁₉ n-alkanes which corresponds to a 7.4-fold increase compared with that obtained ...
DOI:
10.1016/j.apenergy.2022.119629

41. Crystalline Behavior of Paraffin Wax

Author:
Junfeng Wang; Yujian Hao; Bojin Zhu; Tiankun Han; Zhen Li; Jun Zhang
Source:
Journal of physical chemistry 2022 v.126 no.4 pp. 985-995
ISSN:
1520-5207
Subject:
alkanes; carbon; crystallization; entropy; financial economics; industry; oils; paraffin wax; temperature
Abstract:
... Paraffin wax deposition has long been a vexing problem in industry. Especially, in offshore oil production, paraffin wax deposits and clogs pipes and containers because of low temperature, causing severe economic loss. It has been known that the crystallization of n-alkanes mainly causes the deposition of paraffin wax, which is necessary to understand the mechanism of the crystallization behavior ...
DOI:
10.1021/acs.jpcb.1c10000

42. Crystallization Rate Minima of Poly(ethylene brassylate) at Temperatures Transitioning between Quantized Crystal Thicknesses

Author:
Stephanie F. Marxsen; Daokun Song; Xiaoshi Zhang; Irma Flores; Jorge Fernández; José Ramón Sarasua; Alejandro J. Müller; Rufina G. Alamo
Source:
Macromolecules 2022 v.55 no.10 pp. 3958-3973
ISSN:
1520-5835
Subject:
alkanes; crystallization; heat; molecular weight; polyesters; temperature
Abstract:
... Poly(ethylene tridecanodiate), also known as poly(ethylene brassylate) (PEB), is a short–long aliphatic polyester obtained from a renewable source. Cooled from the melt by differential scanning calorimetry or by fast scanning calorimetry, PEBs in a range of molar mass between 27000 and 188000 Da display single crystallization exotherms. On heating, PEBs exhibit two major melt-recrystallization eve ...
DOI:
10.1021/acs.macromol.2c00308

43. Cuticular hydrocarbon variation among Rhagoletis fruit flies (Diptera: Tephritidae): implications for premating reproductive isolation and ecological speciation

Author:
Glen Ray Hood; Jackson H. Jennings; Daniel J. Bruzzese; Melanie Beehler; Thomas Schmitt; Jeffrey L. Feder; William J. Etges
Source:
Ecological entomology 2022 v.47 no.2 pp. 192-207
ISSN:
0307-6946
Subject:
alkadienes; alkanes; apples; carbon; color; entomology; fruits; host plants; mating behavior; models; reproductive isolation; sympatry
Abstract:
... 1. Fruit flies in the genus Rhagoletis are a model for ecological speciation via sympatric host plant shifting. Rhagoletis mate on or near the fruit of their respective host plants, generating premating reproductive isolation between taxa specialised on different hosts. However, non‐host‐related premating isolation has been observed between some Rhagoletis species associated with morphological dif ...
DOI:
10.1111/een.13101

44. Dataset of Phytochemical and secondary metabolite profiling of holy basil leaf (Ocimum sanctum Linn) ethanolic extract using spectrophotometry, thin layer chromatography, Fourier transform infrared spectroscopy, and nuclear magnetic resonance

Author:
Ulayatul Kustiati; Hevi Wihadmadyatami; Dwi Liliek Kusindarta
Source:
Data in Brief 2022 v.40 pp. 107774
ISSN:
2352-3409
Subject:
Fourier transform infrared spectroscopy; Ocimum tenuiflorum; aldehydes; alkanes; amino acids; benzene; carboxylic acids; data collection; flavonoids; halogens; leaves; magnetism; nitrogen; nuclear magnetic resonance spectroscopy; phenol; saponins; secondary metabolites; spectrophotometers; sterols; sulfur; terpenoids; thin layer chromatography; Indonesia
Abstract:
... Holy basil (Ocimum sanctum Linn) or known also as “kemangi” in Indonesia is a plant commonly used as a herb in Asian countries. It is also medicinal with antipyretic, anti-inflammatory, anti-cancer, and neuroprotective properties. This dataset article provides broad screening of the phytochemical component of Ocimum sanctum ethanolic extract (EEOS) as well as a secondary metabolite profile of EEOS ...
DOI:
10.1016/j.dib.2021.107774

45. Deciphering hydroclimate fluctuations of Nile watershed from Holocene sediment of Manzala lagoon: Bio-geochemical implications

Author:
Yanna Wang; Xiaoshuang Zhao; Alaa Salem; Said A. Shetaia; Fan Zhang; Chengpeng Sun; Xinxin Li; Yan Liu; Qianli Sun; Jing Chen; Maotian Li; Brian Finlayson; Zhongyuan Chen
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2022 v.601 pp. 111141
ISSN:
0031-0182
Subject:
Holocene epoch; air; alkanes; basins; biomarkers; coasts; monsoon season; organic matter; palaeogeography; paleoclimatology; paleoecology; primary productivity; provenance; river deltas; sediments; watersheds; Republic of the Congo
Abstract:
... A 19.5-m long Holocene sediment core (MZ-1) was retrieved from Manzala lagoon coast, the depocenter of the Nile Delta. AMS-dating shows the complete Holocene strata of MZ-1, mostly consisting of lagoon muds. The high-resolution dated geochemical elements (major and trace) and bio-markers (n-alkanes) of MZ-1 serve as effective hydroclimate proxies that oscillated during the Africa Humid Period (AHP ...
DOI:
10.1016/j.palaeo.2022.111141

46. Decolorization of amaranth RI and fast red E azo dyes by thermophilic Geobacillus thermoleovorans KNG 112

Author:
Kotresh Kyathanahally Rajashekarappa; Gurumurthy Dummi Mahadevan; Shivayogeeswar Eshwarappa Neelagund; Madhuri Sathynarayana; Divya Vijaya; Sikandar I Mulla
Source:
Journal of chemical technology and biotechnology 2022 v.97 no.2 pp. 482-489
ISSN:
0268-2575
Subject:
Bacillus thermoleovorans; Fourier transform infrared spectroscopy; aesthetics; alcohols; alkanes; alkynes; azo dyes; beef extracts; biotechnology; carbon; decolorization; decontamination; fabrics; fenugreek; germination; maltose; mung beans; nitrogen; nitrosamines; pH; phytotoxicity; spectral analysis; wastewater
Abstract:
... BACKGROUND: Accumulation of industrial dyes in wastewater creates not only environmental problems, but also medical and aesthetic problems. Removal of synthetic dyes from contaminated hot textile industrial discharge is a fundamental issue. Herein, the microbial decolorization of azo dyes amaranth RI and fast red E was studied. The decolorization process was studied in terms of various physicochem ...
DOI:
10.1002/jctb.6834

47. Desulfonation and defluorination of 6:2 fluorotelomer sulfonic acid (6:2 FTSA) by Rhodococcus jostii RHA1: Carbon and sulfur sources, enzymes, and pathways

Author:
Shih-Hung Yang; Ying Shi; Mark Strynar; Kung-Hui Chu
Source:
Journal of hazardous materials 2022 v.423 pp. 127052
ISSN:
0304-3894
Subject:
Rhodococcus jostii; alkanes; biotransformation; carbon; cytochrome P-450; gene expression; heterologous gene expression; metabolites; sulfonates; sulfonic acids; sulfur
Abstract:
... 6:2 fluorotelomer sulfonic acid (6:2 FTSA) is one per- and poly-fluoroalkyl substances commonly detected in the environment. While biotransformation of 6:2 FTSA has been reported, factors affecting desulfonation and defluorination of 6:2 FTSA remain poorly understood. This study elucidated the effects of carbon and sulfur sources on the gene expression of Rhodococcus jostii RHA1 which is responsib ...
DOI:
10.1016/j.jhazmat.2021.127052

48. Determination of hydrocarbon sources in major rivers and estuaries of peninsular Malaysia using aliphatic hydrocarbons and hopanes as biomarkers

Author:
Mehrzad Keshavarzifard; Mohamad Pauzi Zakaria; Moslem Sharifinia; Peter Grathwohl; Shahin Keshavarzifard; Reza Sharifi; Sajjad Abbasi; Meisam Rastegari Mehr
Source:
Environmental forensics 2022 v.23 no.3-4 pp. 255-268
ISSN:
1527-5930
Subject:
alkanes; biomarkers; carbon; molecular weight; petroleum; Malaysia; Middle East
Abstract:
... In this study, levels and sources of aliphatic hydrocarbons and hopanes in surface sediments collected from rivers and estuaries of Peninsular Malaysia were assessed. The concentrations of total n-alkanes ranged from 21.19 to 364.54, and the concentrations of hopanes ranged from 0.23 to 2.45 mg kg⁻¹ dry weight. Evaluation of aliphatic diagnostic indices including Carbon Preference Index (CPI), low ...
DOI:
10.1080/15275922.2020.1806147

49. Distribution and carbon isotopic composition of long-chain leaf wax n-alkanes from Holocene lake sediments in the Altai Mountains

Author:
Qi Li; Jiayu Zhao; Manman Xie; Haowei Dong; Andrei Darin; Fedor Darin; Yakov Rakshun; Youliang Su; Shuxian Wang; Qing Sun; Guoqiang Chu
Source:
Quaternary international 2022 v.625 pp. 29-37
ISSN:
1040-6182
Subject:
Holocene epoch; alkanes; carbon; climate; cold; hydrology; ice cover; lakes; latitude; leaves; sea ice; snow; temperature; vegetation; Arctic Ocean; Arctic region; Asia; Europe
Abstract:
... The Altai Mountains are located at the junction of Asia and Europe and pathways linking East Asian climate with the Arctic and North Atlantic. Here, we report a record of n-alkanes from the sediments of Shuanghu Lake in the Altai Mountains. In this forested region, the vegetation is dominated by C₃ plants and the long-chain n-alkanes (C29–C31) in the lake sediments are predominantly derived from l ...
DOI:
10.1016/j.quaint.2022.04.008

50. Distribution and health risks of organic micropollutants from home dusts in Malaysia

Author:
Jianlei Yang; Yern Chee Ching; Kiwao Kadokami; Kuan Yong Ching; Shicai Xu; Guodong Hu; Jihua Wang
Source:
Chemosphere 2022 v.309 pp. 136600
ISSN:
0045-6535
Subject:
alkanes; automation; carcinogenicity; databases; dust; humans; ingestion; pollutants; quantitative structure-activity relationships; risk; sterols; Malaysia
Abstract:
... Indoor dust is an important medium to evaluate human exposure to emerging organic contaminants. The principal aim of this study was to determine overall status of organic micropollutants (OMPs) of indoor dust in Kuala Lumpur, Malaysia and assess their corresponding health risks. One hundred thirty-three OMPs, ascribed to 13 chemical groups, were screened by Automated Identification and Quantificat ...
DOI:
10.1016/j.chemosphere.2022.136600

51. Distribution of n-Alkanes in Hummocky Peatlands of the Extreme Northern Taiga of the European Northeast of Russia and Their Role in Paleoclimate Reconstruction

Author:
D. N. Gabov; E. V. Yakovleva; R. S. Vasilevich; I. V. Gruzdev
Source:
Eurasian soil science 2022 v.55 no.7 pp. 879-894
ISSN:
1064-2293
Subject:
Holocene epoch; Russia; alkanes; carbon radioisotopes; humidity; paleobotany; paleoclimatology; peat; peatlands; soil; taiga; temperature
Abstract:
... The examined peatlands were assayed for the n-alkanes С₁₄Н₄₄–С₃₁Н₆₄; their contents of in all studied soil profiles are determined by both different botanical compositions of plant residues in peatlands and different climatic conditions (temperature and humidity) during these alkanes formation. The maximum total content of n-alkanes dates back to the Holocene climatic optimum and amounts to 104–19 ...
DOI:
10.1134/S1064229322070043

52. Diversity of nonacosan-10-ol and n-alkanes among 12 Pinus taxa

Author:
Biljana M. Nikolic; Iris Đorđević; Marina Todosijevic; Zorica Mitic; Milena A. Stefanović; Jovana M. Stankovic; Srdjan Bojović; Vele Tešević; Petar D. Marin
Source:
Plant biosystems 2022 v.156 no.2 pp. 330-337
ISSN:
1724-5575
Subject:
Pinus pinaster; alkanes; carbon; planting; supply chain; waxes
Abstract:
... The content of nonacosan-10-ol and n-alkanes in needle waxes of 12 Pinus taxa (P. halepensis, P. heldreichii, P. mugo, P. nigra ssp. nigra, P. nigra ssp. dalmatica, P. peuce, P. pinaster, P. pinea, P. ponderosa, P. strobus, P. sylvestris and P. wallichiana) were examined. In eight Pinus taxa (except of P. halepensis, P. pinaster, P. heldreichii and P. peuce) nonacosan-10-ol contents were examined ...
DOI:
10.1080/11263504.2020.1857867

53. Effect of Na2CO3 on the Catalytic Degradation of Crude Oil–Polluted Soil by Fenton Heterogène Reaction with Natural Magnetite

Author:
Mamane Souley Abdoul Aziz; B. K. Yao; Ousmane Mahamane Sani
Source:
Water, air, and soil pollution 2022 v.233 no.6 pp. 211
ISSN:
0049-6979
Subject:
air; alkanes; asphaltenes; flame ionization; magnetite; oxidation; petroleum; soil pollution; titration; water; water pollution
Abstract:
... Crude-oil production and transport show high soil and water pollution. The principal aim of this research is to analyze the beneficial effect of natural Na₂CO₃ on the catalytic degradation of crude oil SARA fraction by Heterogeneous Fenton Reaction with natural magnetite. Saturates Aromatics, Resins and Asphaltenes (SARA) analyses and the gas chromatograph coupled with a Flame Ionization Detector ...
DOI:
10.1007/s11270-022-05682-x

54. Effect of Strobilanthes tonkinensis Lindau Addition on Black Tea Flavor Quality and Volatile Metabolite Content

Author:
Jinjie Hua; Jia Li; Wen Ouyang; Jinjin Wang; Haibo Yuan; Yongwen Jiang
Source:
Foods 2022 v.11 no.12 pp. -
ISSN:
2304-8158
Subject:
Strobilanthes; alkanes; alkynes; black tea; consumer acceptance; discriminant analysis; flavor; glutinous rice; ingredients; least squares; metabolites; octenol; odors; phenylethyl alcohol; research and development; summer; supply balance
Abstract:
... The characteristic aroma of Chinese black tea (BT) produced in summer usually lacks intensity and persistence, reducing consumer acceptance and market demand. Strobilanthes tonkinensis Lindau (STL) possesses excellent biological characteristics, making it a promising novel tea ingredient. We investigated the effects of different addition methods and concentrations for the novel additive STL on the ...
DOI:
10.3390/foods11121678

55. Effect of Thermal History and Hydrocarbon Core Size on Perfluorocarbon Endoskeletal Droplet Vaporization

Author:
Gazendra Shakya; Apresio K. Fajrial; Xiaoyun Ding; Mark A. Borden
Source:
Langmuir 2022 v.38 no.8 pp. 2634-2641
ISSN:
1520-5827
Subject:
alkanes; droplets; heat treatment; liquids; perfluorocarbons; temperature; volatilization
Abstract:
... Vaporizable hydrocarbon-in-fluorocarbon endoskeletal droplets are a unique category of phase-change emulsions with interesting physical and thermodynamic features. Here, we show microfluidic fabrication of various morphologies, such as solid-in-liquid, liquid-in-solid, and Janus-type, of complex solid n-C₂₀H₄₂ or n-C₂₁H₄₄ and liquid n-C₅F₁₂ droplets. Furthermore, we investigated the vaporization b ...
DOI:
10.1021/acs.langmuir.1c03350

56. Effect of final pyrolysis temperature on the composition and structure of shale oil: Synergistic use of multiple analysis and testing methods

Author:
Da Cui; Helin Yin; Yupeng Liu; Ji Li; Shuo Pan; Qing Wang
Source:
Energy 2022 v.252 pp. 124062
ISSN:
0360-5442
Subject:
Fourier transform infrared spectroscopy; alkanes; aromatization; carbon; energy; fuel oils; gas chromatography-mass spectrometry; liquids; nuclear magnetic resonance spectroscopy; oil shale; pyrolysis; temperature
Abstract:
... As the focus of research on the pyrolysis mechanism of oil shale shifting towards the molecular level, identifying the effect of pyrolysis temperature on the molecular composition and structure becomes all the more important. In this study, the molecular characteristics of shale oils produced at different final pyrolysis temperatures was compared and analyzed through synergistic use of multiple an ...
DOI:
10.1016/j.energy.2022.124062

57. Effect of various seasonings on the quality retention of dried mackerel (Scomber scombrus Linnaeus)

Author:
Fumiyuki Kobayashi; Ryusuke Kimura; Ryoma Aoki; Koji Tamura; Ryo Ozawa; Sachiko Odake
Source:
Journal of food processing and preservation 2022 v.46 no.8 pp. e15476
ISSN:
0145-8892
Subject:
Japan; Scomber scombrus; alkanes; alkenes; antioxidant activity; chorizo; dried fish; free amino acids; liquids; mackerel; pH; salt concentration; water content
Abstract:
... The effect of seasonings on the quality retention of dried mackerel (Scomber scombrus Linnaeus) was investigated by analyzing the components of the seasonings and prepared dried mackerel. The pH, water content, salt concentration, and inosinic acid content of dried mackerel were influenced by the water content of seasoning liquid. The free amino acid content of dried mackerel depended on the seaso ...
DOI:
10.1111/jfpp.15476

58. Effects of regular addition and discontinuation of biosurfactant on hydrocarbon biodegradation and microorganisms in heavy oily sludge

Author:
Hanghai Zhou; Shichen Li; Lijia Jiang; Feng Zeng; Xiaoyun Lin; Chunlei Chen; Yanhong Li; Chunfang Zhang
Source:
Journal of soils and sediments 2022 v.22 no.9 pp. 2475-2484
ISSN:
1439-0108
Subject:
Pseudomonas; alkanes; biodegradability; biodegradation; bioremediation; biosurfactants; catalase; community structure; ecosystems; microbial communities; nutrition; petroleum; sludge; sustainable development
Abstract:
... PURPOSE: This study was conducted to investigate the effect of biosurfactant and nutrient amendment on the bioremediation of heavy oily sludge. The biosurfactants exhibit characteristics of amphiphilicity, emulsifying activity, and biodegradability. The application of biosurfactant, appropriate water and nutrition, combined with mechanical stirring effectively enhanced bioremediation, providing a ...
DOI:
10.1007/s11368-022-03239-3

59. Efficient catalytic degradation of alkanes in soil by a novel heterogeneous Fenton catalyst of functionalized magnetic biochar

Author:
Xiumin Li; Jinlan Xu; Zhilin Yang
Source:
Chemosphere 2022 v.301 pp. 134693
ISSN:
0045-6535
Subject:
alkanes; biochar; catalysts; catalytic activity; hydrophobic bonding; iron; magnetism; oxidation; pH; petroleum; soil remediation
Abstract:
... In this study, sodium dodecyl sulfate (SDS) functionalized magnetic biochar (SDS-Fe@BC) was successfully prepared. Compared to other traditional heterogeneous Fenton catalysts, more total petroleum hydrocarbons (TPH) (3499.40 mg kg⁻¹) was adsorbed from soil to the surface of SDS-Fe@BC through hydrophobic interaction between alkyls in alkanes and SDS-Fe@BC, which formed an efficient interface oxida ...
DOI:
10.1016/j.chemosphere.2022.134693

60. Emissions of gaseous pollutants released by forest fire in relation to litter fuel moisture content

Author:
Yuanfan Ma; Song Yang; Zhongpan Zhu; Guangyu Wang; Mulualem Tigabu; Yuxuan Guo; Wenxia Zheng; Futao Guo
Source:
Atmospheric environment 2022 v.284 pp. 119215
ISSN:
1352-2310
Subject:
Cinnamomum camphora; Cunninghamia lanceolata; Eucalyptus robusta; Pinus massoniana; alkanes; biomass; carbon dioxide; combustion; conifers; environment; fire prevention; forest fires; forest litter; forests; fuel moisture index; gas chromatography-mass spectrometry; olefin; smoke; water content; China
Abstract:
... The moisture content of forest floor fuel influences fire initiation and spread, but little is known about its impact on the emissions of pollutants. This study aimed to estimate quantitatively the characteristic change of pollutants emitted by forest fires at various fuel moisture content. Thus, litter fuel (both branches and leaves) of two dominant coniferous species (Cunninghamia lanceolata and ...
DOI:
10.1016/j.atmosenv.2022.119215

61. Enhanced remediation of fracturing flowback fluids by the combined application of a bioflocculant/biosurfactant-producing Bacillus sp. SS15 and its metabolites

Author:
Feng Zeng; Hanghai Zhou; Xiaoyun Lin; Yanhong Li; Yanpeng Liang; Qinglin Xie; Edidiong Okokon Atakpa; Chaofeng Shen; Chunfang Zhang
Source:
Chemosphere 2022 v.302 pp. 134870
ISSN:
0045-6535
Subject:
Bacillus (bacteria); alkanes; bioremediation; biosurfactants; carbohydrates; chemical oxygen demand; flocculation; kaolin; lipopeptides; metabolites; micelles; oils; pH; salinity; salt tolerance; sediments; sequence analysis; surface tension; temperature; thermal stability
Abstract:
... Fracturing flowback fluids (FFFs), which is generated from the process of oil and gas exploitation, is one of the major environmental concerns. In this study, a bacterial strain, Bacillus sp. SS15, capable of producing both bioflocculant (BF) and biosurfactant (BS), was isolated from oil-contaminated mudflat sediment. The BS produced by SS15 was identified as lipopeptide, which could reduce the su ...
DOI:
10.1016/j.chemosphere.2022.134870

62. Environmental changes during the past ~ 400 years in alpine Lake Son-Kul, central Tien Shan, Kyrgyzstan: evidence from sedimentary lipid biomarker records

Author:
Hongliang Zhang; Jinglu Wu; Qianyu Li; Miao Jin
Source:
Journal of paleolimnology 2022 v.68 no.3 pp. 265-278
ISSN:
0921-2728
Subject:
alkanes; biomarkers; herbaceous plants; lakes; lipids; macrophytes; pesticides; phytoplankton; primary productivity; sediments; total nitrogen; total organic carbon; vegetation; Kyrgyzstan
Abstract:
... Environmental and ecological changes recorded in lake sediments can provide valuable information about natural versus anthropogenic effects on the environment, especially in alpine lakes, which are commonly regarded as sensitive indicators of both local and global environmental changes. To reconstruct the past ~ 400 years of environmental history of alpine Lake Son-Kul, central Tienshan, Kyrgyzsta ...
DOI:
10.1007/s10933-022-00246-9

63. Environmental evidence of Valencia lagoon coastal barrier stabilization from 8500 BP to Present. Climate and eustatic variations

Author:
M. López-Belzunce; A.M. Blázquez; Y. Sánchez-Palencia; T. Torres; J.E. Ortiz
Source:
Science of the total environment 2022 v.807 pp. 151230
ISSN:
0048-9697
Subject:
Holocene epoch; Retaria; alkanes; amino acids; brackish marshes; climate; climate change; environment; freshwater marshes; paleoecology; radiometry; sea level; sediments
Abstract:
... The Albufera de Valencia is one of the largest lagoon in the Spanish Mediterranean. Two continuous borehole cores reaching depths of 8 and 14 m in the northern part of the lagoon underwent sedimentological, micropaleontological and biological study. The organic content was also analysed, and ¹⁴C radiometric dating and amino acid racemization were performed. Study of the content of benthic foramini ...
DOI:
10.1016/j.scitotenv.2021.151230

64. Estimating Preferred Alkane Carbon Numbers of Nonionic Surfactants in Normalized Hydrophilic–Lipophilic Deviation Theory from Dissipative Particle Dynamics Modeling

Author:
Hua Ren; Qiuyu Zhang; Baoliang Zhang; Qingfei Song
Source:
Journal of physical chemistry 2022 v.126 no.19 pp. 3593-3606
ISSN:
1520-5207
Subject:
alkanes; carbon; computer simulation; molecular dynamics; neural networks; nonionic surfactants; temperature; torque
Abstract:
... The preferred alkane carbon number (PACN) in the normalized hydrophilic–lipophilic deviation (HLDN) theory is a numerical parameter and a transferable scale to characterize the amphiphilicity of surfactants, which is usually measured experimentally using the fish diagram or phase inversion temperature (PIT) methods, and the experimental measurement can only be applied to existing surfactants. Here ...
DOI:
10.1021/acs.jpcb.2c00943

65. Evaluating the bio-removal of crude oil by vetiver grass (Vetiveria zizanioides L.) in interaction with bacterial consortium exposed to contaminated artificial soils

Author:
Zahra Kiamarsi; Mohammad Kafi; Mohsen Soleimani; Ahmad Nezami; Stanley Lutts
Source:
International journal of phytoremediation 2022 v.24 no.5 pp. 483-492
ISSN:
1549-7879
Subject:
Chrysopogon zizanioides; alkanes; grasses; oils; petroleum; phytoremediation; polluted soils; root shoot ratio
Abstract:
... Remediation of crude oil-impacted areas is a major pervasive concern in various environmental conditions. The major aim of this study was to investigate the collaboration of vetiver grass (Vetiveria zizanioides L.) and petroleum hydrocarbon-degrading bacteria to clean up contaminated soils. Vetiver grass and five native bacterial isolates were used in one consortium to remediate contaminated soil ...
DOI:
10.1080/15226514.2021.1954876

66. Evaporative emission characteristics of high-mileage gasoline vehicles

Author:
Jiachen Li; Yunshan Ge; Xin Wang; Mengzhu Zhang
Source:
Environmental pollution 2022 v.303 pp. 119127
ISSN:
0269-7491
Subject:
alkanes; certification; gasoline; inventories; ozone; pollution; temperature; volatile organic compounds
Abstract:
... Evaporative emissions of vehicles are an essential source of atmospheric volatile organic compounds (VOCs), contributing to ozone contamination, especially in urban areas. Due to the outdated standards under which in-use vehicles were constructed and the ageing of control devices, high-mileage vehicles tend to produce an enormous amount of evaporative emissions. In this study, evaporative emission ...
DOI:
10.1016/j.envpol.2022.119127

67. Examination of Oil Structural Motifs and Temperature in Promoting Reversible Self-Assembly of Gold Nanoparticle Langmuir Films

Author:
Annabelle M. Kilham; Samantha McWhirter; M.-Vicki Meli
Source:
Langmuir 2022 v.38 no.3 pp. 1011-1019
ISSN:
1520-5827
Subject:
alkanes; ligands; liquids; models; nanogold; oils; temperature; transmission electron microscopy
Abstract:
... The interaction between gold nanoparticles (AuNPs) with other components and phases has important consequences on their use in materials and devices as well as their fate in the environment or at biological interfaces. Previously we determined that long oil chain lengths and lower temperatures optimized the mixing of n-alkanes with alkanethiol-capped AuNPs which improved nanoparticle self-assembly ...
DOI:
10.1021/acs.langmuir.1c02531

68. Exploring Mechanisms of Biotic Chlorinated Alkane Reduction: Evidence of Nucleophilic Substitution (SN2) with Vitamin B₁₂

Author:
Benjamin Heckel; Martin Elsner
Source:
Environmental science & technology 2022 v.56 no.10 pp. 6325-6336
ISSN:
1520-5851
Subject:
Dehalobacter; Dehalococcoides; Lewis bases; alkanes; bioremediation; dechlorination; ethylene dichloride; groundwater contamination; isotopes; technology; vitamin B12
Abstract:
... Chlorinated alkanes are notorious groundwater contaminants. Their natural reductive dechlorination by microorganisms involves reductive dehalogenases (RDases) containing cobamide as a cofactor. However, underlying mechanisms of reductive dehalogenation have remained uncertain. Here, observed products, radical trap experiments, UV–vis, and mass spectra demonstrate that (i) reduction by cobalamin (v ...
DOI:
10.1021/acs.est.1c06066

69. Extension of Cubic-Plus-Chain Equation of State: Incorporating Short-Range Soft Repulsion for Nonassociating Mixtures

Author:
Mohammed M. Alajmi; Caleb J. Sisco; Mohammed I. L. Abutaqiya; Francisco M. Vargas; Walter G. Chapman
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.23 pp. 8293-8301
ISSN:
1520-5045
Subject:
alkanes; alkenes; benzene; equations; liquids; mathematical theory; models; process design; vapor pressure; vapors
Abstract:
... The cubic-plus-chain (CPC) equation of state hybridizes the classical cubic equation of state with the chain term from the statistical associating fluid theory. The addition of the chain term allows the model to account for the physics of both short-chain and long-chain compounds within the same framework. The CPC framework is not restricted to a specific monomer formulation and radial distributio ...
DOI:
10.1021/acs.iecr.2c00902

70. Fe-Substituted Pt/HZSM-48 for Superior Selectivity of i-C₁₂ in n-Dodecane Hydroisomerization

Author:
Shujie Shang; Wenhui Li; Ajuan Zhou; Jiaxing Zhang; Hong Yang; Anfeng Zhang; Xinwen Guo
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.2 pp. 1056-1065
ISSN:
1520-5045
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; acidity; alkanes; catalysts; isomers; process design
Abstract:
... A series of Fe-substituted ZSM-48 catalysts including Fe-free HZ48 and partially and fully Fe-substituted HZ48-x (x = Al/Fe = 9, 5, 1, and 0) is synthesized via an in situ seed-induced hydrothermal process with the aim to improve the iso-selectivity of long-chain n-alkane hydroisomerization. X-ray powder diffraction, UV–vis, UV-Raman, and X-ray photoelectron spectroscopy analyses confirm that Fe³⁺ ...
DOI:
10.1021/acs.iecr.1c04091

71. Fe-promoted Ni catalyst with extremely high loading and oxygen vacancy for lipid deoxygenation into green diesel

Author:
Fei Wang; Hui Xu; Songyin Yu; Hao Zhu; Yuchan Du; Zeng Zhang; Chaoqun You; Xiaoxiang Jiang; Jianchun Jiang
Source:
Renewable energy 2022 v.197 pp. 40-49
ISSN:
0960-1481
Subject:
acidity; activation energy; alkanes; catalysts; catalytic activity; coprecipitation; oleic acid; oxygen; renewable energy sources; surface area
Abstract:
... The catalytic performance of Ni catalyst in lipid deoxygenation into green diesel is commonly limited by the quantity of accessible active sites, the specific surface area, and the acidity of the catalyst. To cope with these problems, the Fe-promoted Ni catalyst on ZrO₂ with 60 wt% Ni loading (60%Ni–Fe/ZrO₂) is synthesized by the co-precipitation method. The deoxygenation of oleic acid over 60%Ni– ...
DOI:
10.1016/j.renene.2022.07.079

72. Filling the Gap with Long n-Alkanes: Incorporation of C20 and C30 into Phospholipid Membranes

Author:
Anika Wurl; Maria Ott; Eric Plato; Annette Meister; Farzad Hamdi; Panagiotis L. Kastritis; Alfred Blume; Tiago M. Ferreira
Source:
Langmuir 2022 v.38 no.28 pp. 8595-8606
ISSN:
1520-5827
Subject:
X-radiation; alkanes; biophysics; chemical structure; electron microscopy; hydrophobicity; isotropy; models; molecular dynamics; phosphatidylcholines
Abstract:
... Investigating how hydrophobic molecules mix with phospholipid bilayers and how they affect membrane properties is commonplace in biophysics. Despite this, a molecular-level empirical description of a membrane model as simple as a phospholipid bilayer with long linear hydrophobic chains incorporated is still missing. Here, we present an unprecedented molecular characterization of the incorporation ...
DOI:
10.1021/acs.langmuir.2c00872

73. Finely regulated polyamide membranes with rapid water transport for low-pressure precise nanofiltration

Author:
Aiwen Zhang; Junyong Zhu; Shuangqiao Han; Yatao Zhang; Bart Van der Bruggen
Source:
Journal of membrane science 2022 v.662 pp. 120987
ISSN:
0376-7388
Subject:
alkanes; crosslinking; electrostatic interactions; films (materials); guidelines; hydrogels; hydrophilicity; nanofibers; nanofiltration; permeability; piperidines; polyamides; solvents; water purification
Abstract:
... Low-pressure nanofiltration (NF) has evinced huge application prospects for ion/molecule separation. However, current polyamide-based membranes made by highly reactive monomers offer less control in precisely tuning of their pore apertures, leading to a permeability-selectivity trade-off limit. Herein, the usage of amino-piperidine (AP, 4-aminopiperidine: 4AP; 3-aminoapiperidine: 3AP) is proposed ...
DOI:
10.1016/j.memsci.2022.120987

74. Functional Potential and Chemical Profile Analysis of Propolis Oil Extracted from Propolis of Balochistan

Author:
Saliha Aziz; Ali Akbar; Zareen Gul; Muhammad Bilal Sadiq; Jahangir Khan Achakzai; Nazir Ahmad Khan; Abdul Samad; Zia Ur Rehman; Imran Ali
Source:
Journal of food quality 2022 v.2022 pp. -
ISSN:
1745-4557
Subject:
Aspergillus flavus; Aspergillus niger; Aspergillus parasiticus; Escherichia coli; Klebsiella pneumoniae; Salmonella Typhi; Staphylococcus aureus; acetophenones; aldehydes; alkanes; alkenes; antibacterial properties; antioxidants; benzyl benzoate; chemical composition; flavonoids; food quality; growth retardation; oils; phenol; propolis; spectrophotometers
Abstract:
... Propolis oil (PO) was examined for chemical composition, phenolic and flavonoid content, and antioxidant and antimicrobial potential. Phenolic and flavonoid contents were 2.388 ± 1.116 mg GAE/g and 0.579 ± 0.140 mg QE/g. Oil showed 64.59 ± 14.59% inhibition of DPPH radical and significant antibacterial activities against target bacteria. Salmonella typhi was found to be highly sensitive (27.23 ± 4 ...
DOI:
10.1155/2022/4782813

75. Gas Chromatography-(Cyclic) Ion Mobility Mass Spectrometry: A Novel Platform for the Discovery of Unknown Per-/Polyfluoroalkyl Substances

Author:
Amber MacNeil; Xiaolei Li; Roshanak Amiri; Derek C. G. Muir; Andre Simpson; Myrna J. Simpson; Frank L. Dorman; Karl J. Jobst
Source:
Analytical chemistry 2022 v.94 no.31 pp. 11096-11103
ISSN:
1520-6882
Subject:
alkanes; analytical chemistry; atmospheric pressure; bioaccumulation; dust; gas chromatography; industry; ionization; mass spectrometry; prediction; spectrometers; trade; wildlife
Abstract:
... Per- and polyfluoroalkyl substances (PFASs) have been widely used since the 1940s in industry and everyday household products. They also persist in the environment and bioaccumulate in humans and wildlife. Despite these concerns, the identities of most PFASs in environmental and biological samples are unknown. Herein, we describe a novel cyclic ion mobility mass spectrometer (cIMS), hyphenated wit ...
DOI:
10.1021/acs.analchem.2c02325

76. Genome-Based Exploration of Rhodococcus Species for Plastic-Degrading Genetic Determinants Using Bioinformatic Analysis

Author:
Jessica Zampolli; Alessandro Orro; Daniele Vezzini; Patrizia Di Gennaro
Source:
Microorganisms 2022 v.10 no.9 pp. -
ISSN:
2076-2607
Subject:
alkanes; biodegradation; bioinformatics; carboxylesterase; cytochrome P-450; genes; oxidoreductases; polyesters; prediction; waste management
Abstract:
... Plastic polymer waste management is an increasingly prevalent issue. In this paper, Rhodococcus genomes were explored to predict new plastic-degrading enzymes based on recently discovered biodegrading enzymes for diverse plastic polymers. Bioinformatics prediction analyses were conducted using 124 gene products deriving from diverse microorganisms retrieved from databases, literature data, omic-ap ...
DOI:
10.3390/microorganisms10091846

77. Genomic and Physiological Characterization of Halophilic Bacteria of the Genera Halomonas and Marinobacter from Petroleum Reservoirs

Author:
T. P. Tourova; D. S. Sokolova; E. M. Semenova; A. P. Ershov; D. S. Grouzdev; T. N. Nazina
Source:
Microbiology 2022 v.91 no.3 pp. 235-248
ISSN:
0026-2617
Subject:
Halomonas; Marinobacter lutaoensis; acetates; alkanes; betaine; bioaugmentation; corrosion; genes; genomics; microbial communities; mineralization; nitrates; nitrite reductase; nitrites; oils; osmotolerance; petroleum; pollution; salinity; sequence analysis; sulfides; surface tension; temperature
Abstract:
... During the exploitation of oil reservoirs with highly mineralized waters, water separated from oil is pumped back into the reservoirs, which in some cases leads to an increase in ambient salinity and limits the possibility of application of biotechnologies for the enhancement of oil recovery. The microbial community of such oil fields has been relatively scarcely studied. Two strains of halophilic ...
DOI:
10.1134/S0026261722300038

78. Genomic and transcriptomic characterization revealed key adaptive mechanisms of Marinobacter hydrocarbonoclasticus NI9 for proliferation and degradation of jet fuel

Author:
Thusitha S. Gunasekera; Loryn L. Bowen; Osman Radwan; Richard C. Striebich; Oscar N. Ruiz
Source:
International biodeterioration & biodegradation 2022 v.175 pp. 105502
ISSN:
0964-8305
Subject:
Marinobacter hydrocarbonoclasticus; aldehyde dehydrogenase; alkanes; biodegradation; cytochrome P-450; fuels; genomics; iron; ligases; long chain fatty acids; multigene family; operon; transcriptome; transcriptomics; transporters
Abstract:
... Marinobacter hydrocarbonoclasticus NI9 has the ability to degrade short-chain alkanes (n-C6 to n-C8), which provides a competitive advantage over other microorganisms. Therefore, we sequenced NI9's genome and analyzed its transcriptome using RNAseq when growing in jet fuel. The genome (3.98 Mb) has at least two alkane monooxygenase genes that are differentially expressed with monooxygenase FH712_R ...
DOI:
10.1016/j.ibiod.2022.105502

79. Genomic insights revealed the environmental adaptability of Planococcus halotolerans Y50 isolated from petroleum-contaminated soil on the Qinghai-Tibet Plateau

Author:
Ruiqi Yang; Binglin Zhang; Yeteng Xu; Gaosen Zhang; Yang Liu; Dongming Zhang; Wei Zhang; Tuo Chen; Guangxiu Liu
Source:
Gene 2022 v.823 pp. 146368
ISSN:
0378-1119
Subject:
DNA repair; alkanes; bioremediation; evolution; gamma radiation; genes; genomics; horizontal gene transfer; hydroxyl radicals; peroxiredoxin; petroleum; superoxide anion; superoxide dismutase; China
Abstract:
... The Tibetan Plateau niche provides unprecedented opportunities to find microbes that are functional and commercial significance. The present study investigated the physiological and genomic characteristics of Planococcus halotolerans Y50 that was isolated from a petroleum-contaminated soil sample from the Qinghai-Tibet Plateau, and it displayed psychrotolerant, antiradiation, and oil-degraded char ...
DOI:
10.1016/j.gene.2022.146368

80. How water wets and self-hydrophilizes nanopatterns of physisorbed hydrocarbons

Author:
Diego Díaz; Ole Nickel; Nicolás Moraga; Rodrigo E. Catalán; María José Retamal; Hugo Zelada; Marcelo Cisternas; Robert Meißner; Patrick Huber; Tomas P. Corrales; Ulrich G. Volkmann
Source:
Journal of colloid and interface science 2022 v.606 pp. 57-66
ISSN:
0021-9797
Subject:
alkanes; atomic force microscopy; computers; fractal dimensions; hydrophilicity; hydrophobicity; molecular dynamics; silicon; wettability
Abstract:
... Weakly bound, physisorbed hydrocarbons could in principle provide a similar water-repellency as obtained by chemisorption of strongly bound hydrophobic molecules at surfaces.Here we present experiments and computer simulations on the wetting behaviour of water on molecularly thin, self-assembled alkane carpets of dotriacontane (n-C₃₂H₆₆ or C32) physisorbed on the hydrophilic native oxide layer of ...
DOI:
10.1016/j.jcis.2021.07.121

81. Hydrogen and carbon isotope fractionation in modern plant wax n-alkanes from the Falkland Islands

Author:
Megan C. Corcoran; Aaron F. Diefendorf; Thomas V. Lowell; Brenda L. Hall; Meghan M. Spoth; Anna Schartman; Paul Brickle
Source:
Organic geochemistry 2022 v.166 pp. 104404
ISSN:
0146-6380
Subject:
Cortaderia pilosa; Empetrum; alkanes; carbon; geochemistry; isotope fractionation; lakes; landscapes; latitude; lichens; sediments; vegetation; wind direction
Abstract:
... The hydrogen isotopic composition of terrestrial plant waxes (δ²Hwₐₓ) is widely used to reconstruct past hydroclimate. δ²Hwₐₓ values reflect plant source water or precipitation δ²H (δ²Hₚᵣₑcᵢₚ) values, and when extracted from sediment archives, records of past δ²Hₚᵣₑcᵢₚ values can be generated. In order to better interpret these δ²Hwₐₓ records, modern calibrations between plant waxes and source wat ...
DOI:
10.1016/j.orggeochem.2022.104404

82. Hydrogen peroxide combined with surfactant leaching and microbial community recovery from oil sludge

Author:
Zhixian Ding; Weiyan Chen; Jinyu Hou; Qingling Wang; Wuxing Liu; Peter Christie; Yongming Luo
Source:
Chemosphere 2022 v.286 pp. 131750
ISSN:
0045-6535
Subject:
Corynebacterium; Dietzia; Jeotgalicoccus; Pseudomonas; alkanes; catechol; enzymes; hydrogen peroxide; microbial activity; microbial communities; oil fields; oils; oxidation; petroleum; remediation; salt tolerance; sludge; surfactants; China
Abstract:
... The remediation effects of hydrogen peroxide (H₂O₂) oxidation and surfactant-leaching alone or in combination on three typical oilfield sludges were studied. The removal efficiency of total petroleum hydrocarbons (TPHs) of Jidong, Liaohe and Jiangsu oil sludges by hydrogen peroxide oxidation alone was very poor (6.5, 6.8, and 3.4 %, respectively) but increased significantly (p < 0.05), especially ...
DOI:
10.1016/j.chemosphere.2021.131750

83. Hydroprocessing mixed waste plastics to obtain clean transport fuel

Author:
V.L. Mangesh; P. Tamizhdurai; S. Umasankar; R. Palaniswamy; S. Narayanan; T. Augustine; R. Kumaran; Zeid A. ALOthman; Mohamed Ouladsmane; Mani Govindasamy
Source:
Journal of cleaner production 2022 v.358 pp. 131952
ISSN:
0959-6526
Subject:
alkanes; aromatic compounds; catalysts; combustion; diesel engines; energy; feedstocks; hydrogen; polyethylene; polypropylenes; pyrolysis; pyrolysis oils; temperature; wastes
Abstract:
... Energy from synthetic plastic waste is still elusive as pyrolysis alone could not deliver an environmentally friendly fuel. Hydroprocessing of pyrolysis oil from post-consumer mixed plastics had been attempted earlier; however, demonstration of the performance of the processed fuel through analysis of its properties, composition and engine performance has not been reported yet. High-density polyet ...
DOI:
10.1016/j.jclepro.2022.131952

84. Impact of climatic and environmental factors on δD of n-alkanes in the lake surface sediments of arid Tibet

Author:
Yuan Ling; Mianping Zheng; Qing Sun; Chengjun Zhang; Yong Wang; Manman Xie
Source:
Quaternary international 2022 v.637 pp. 44-56
ISSN:
1040-6182
Subject:
alkanes; autumn; evaporation; humidity; hydrogen; hydrologic data; isotopes; lakes; paleoclimatology; spring; temperature; winter; China
Abstract:
... The hydrogen isotope composition (δD) of paleoclimatic archives is increasingly being used as a proxy for the reconstruction of Quaternary hydroclimatic variability, but the factors controlling δD in arid/semi-arid regions remain poorly understood. We compared the hydrogen isotope composition of individual n-alkanes in the surface sediments of a series of lakes and puddles in Tibet with local mete ...
DOI:
10.1016/j.quaint.2022.08.014

85. Improved degradation of petroleum hydrocarbons by co-culture of fungi and biosurfactant-producing bacteria

Author:
Edidiong Okokon Atakpa; Hanghai Zhou; Lijia Jiang; Yinghui Ma; Yanpeng Liang; Yanhong Li; Dongdong Zhang; Chunfang Zhang
Source:
Chemosphere 2022 v.290 pp. 133337
ISSN:
0045-6535
Subject:
Acinetobacter; Scedosporium; alkanes; bioremediation; biosurfactants; coculture; fluorescein diacetate hydrolysis; fungi; gas chromatography; mass spectrometry; microbial growth; petroleum; secretion; surface tension
Abstract:
... Microbial remediation has proven to be an effective technique for the cleanup of crude-oil contaminated sites. However, limited information exists on the dynamics involved in defined co-cultures of biosurfactant-producing bacteria and fungi in bioremediation processes. In this study, a fungal strain (Scedosporium sp. ZYY) capable of degrading petroleum hydrocarbons was isolated and co-cultured wit ...
DOI:
10.1016/j.chemosphere.2021.133337

86. Improving conversion of methyl palmitate to diesel-like fuel through catalytic deoxygenation with B2O3-modified ZrO2

Author:
Zhenping Cai; Rengan Liang; Panjie Yu; Yaxin Liu; Yongde Ma; Yanning Cao; Kuan Huang; Lilong Jiang; Xiaojun Bao
Source:
Fuel processing technology 2022 v.226 pp. 107091
ISSN:
0378-3820
Subject:
acidity; alkanes; alkenes; boron; dehydrogenation; liquids; methyl palmitate; oxygen; petroleum; spectral analysis; temperature
Abstract:
... There is growing interest about the conversion of lipids to renewable fuels as the alternatives of traditional petroleum. However, the development of efficient catalysts from readily available materials is still challenging. In this study, we demonstrated that the generation of diesel-like fuel from methyl palmitate (MP) through catalytic deoxygenation could be significantly promoted by modifying ...
DOI:
10.1016/j.fuproc.2021.107091

87. Indexes of tobacco smoke contribution to environmental particulates based on molecular fingerprints of alkanes

Author:
Angelo Cecinato; Alessandro Bacaloni; Paola Romagnoli; Mattia Perilli; Catia Balducci
Source:
Environmental science and pollution research 2022 v.29 no.28 pp. 43048-43057
ISSN:
0944-1344
Subject:
aerosols; alkanes; lipids; particulates; pollution; research; risk; smoke; tobacco; toxic substances; toxicology
Abstract:
... Tobacco smoke (TS) is the source of a number of toxicants affecting the atmosphere and poses a threat to smokers and the whole community. Chemical, physical, and toxicological features of smoking products (vapors as well as mainstream, side stream, and third-hand smoke) have been investigated extensively. Special attention is paid to organic compounds (individually or in combination giving rise to ...
DOI:
10.1007/s11356-021-16617-0

88. Influence of High-Molecular n-Alkane Associates on Rheological Behavior of the Crude Oil Residue

Author:
Olga S. Zueva; Elvira R. Zvereva; Anastasiya O. Makarova; Aliya R. Galimzyanova; Marina V. Ageeva; Yaroslav V. Onishchenko; Vadim V. Salnikov; Alexander N. Turanov; Alexey V. Vakhin
Source:
Energy & fuels 2022 v.36 no.13 pp. 6755-6770
ISSN:
1520-5029
Subject:
adhesion; adsorption; alkanes; asphaltenes; electron microscopy; energy; liquids; models; oils; petroleum; plastics; rheological properties; solvation; Kazakhstan
Abstract:
... In this paper, we present the results of chemical and physical investigations of the crude oil residue of low-sulfur but high-paraffin-base crude oil produced from the Mangyshlak (Kazakhstan) reservoir. The object contains 14.6 wt % of resins and significant amounts of high-molecular alkanes. A non-Newtonian behavior of the system is preserved even at 70–90 °C. ¹H NMR data revealed divergence in t ...
DOI:
10.1021/acs.energyfuels.2c00432

89. Influence of “Hydrophobicity” on the Composition and Dynamics of Polyelectrolyte Complex Coacervates

Author:
Mo Yang; Swapnil L. Sonawane; Zachary A. Digby; Jin G. Park; Joseph B. Schlenoff
Source:
Macromolecules 2022 v.55 no.17 pp. 7594-7604
ISSN:
1520-5835
Subject:
alkanes; electrolytes; hydrophobicity; salt concentration; salt tolerance; small-angle X-ray scattering; sodium; viscoelasticity
Abstract:
... Various types of specific interactions are believed to supplement the major entropic driving forces responsible for spontaneous liquid–liquid phase separations in mixtures of oppositely charged polyelectrolytes. Among these interactions, hydrophobicity has recently been probed experimentally via the synthesis and complex formation of polyelectrolytes bearing hydrophobic pendant groups or backbones ...
DOI:
10.1021/acs.macromol.2c00267

90. Insights into the day-night sources and optical properties of coastal organic aerosols in southern China

Author:
Qian Zhang; Ziyi Li; Peng Wei; Qiyuan Wang; Jie Tian; Ping Wang; Zhenxing Shen; Jianjun Li; Hongmei Xu; Youzhi Zhao; Xiaoqing Dang; Junji Cao
Source:
Science of the total environment 2022 v.830 pp. 154663
ISSN:
0048-9697
Subject:
absorption; aerodynamics; alkanes; biomass; chemical structure; coal; environment; fuel combustion; models; particulates; pollution; solar radiation; vehicles (equipment); China
Abstract:
... Organic aerosols (OAs) in particulate matter with an aerodynamic diameter of smaller than 2.5 μm (PM₂.₅) can affect the atmospheric radiation balance through varying molecular structure and light absorption of the aerosols. In this study, daytime and nighttime PM₂.₅ mass, and contents of OA including nitrated aromatic compounds (NACs), polycyclic aromatic hydrocarbons (PAHs), n-alkanes, and hopane ...
DOI:
10.1016/j.scitotenv.2022.154663

91. Interfacial Oriented Precursor to Secondary Nucleation of Alkane Oligomer Crystals Revealed by Molecular Dynamic Simulations

Author:
Yanan Gong; Wenlin Zhang; Ronald G. Larson
Source:
Macromolecules 2022 v.55 no.15 pp. 6311-6320
ISSN:
1520-5835
Subject:
alkanes; crystallization; molecular dynamics; polyethylene
Abstract:
... In atomistic molecular dynamics simulations, alkane oligomers (C50 or C100) rapidly form an oriented interface when placed in contact with a crystal slab of stretched periodic polyethylene chains. The oriented atoms in this interface have a similar order parameter to those of nematic atoms. After a quench below the melting point, we show that this oriented “nematic” interface thickens from around ...
DOI:
10.1021/acs.macromol.2c00363

92. Investigation of VOC characteristics, source analysis, and chemical conversions in a typical petrochemical area through 1-year monitoring and emission inventory

Author:
Guimei Qin; Song Gao; Qingyan Fu; Shuang Fu; Haohao Jia; Qingrui Zeng; Linping Fan; Huarui Ren; Jinping Cheng
Source:
Environmental science and pollution research 2022 v.29 no.34 pp. 51635-51650
ISSN:
0944-1344
Subject:
alkanes; alkenes; aromatic compounds; combustion; evaporation; inventories; oil and gas industry; pollution; research; solvents; statistics; volatile organic compounds
Abstract:
... To effectively investigate the characteristics, source analysis, and chemical conversions of volatile organic compounds (VOCs) pollution in a typical petrochemical area, 81 VOC species from nine sampling sites were collected from 1st January to 31th December 2019 in Jinshan District. Results showed the concentration of VOCs was 51.63 ± 36.05 ppbv, and VOCs were dominated by alkane (40.10%) and alk ...
DOI:
10.1007/s11356-022-19145-7

93. Investigation of partition coefficients and fingerprints of atmospheric gas- and particle-phase intermediate volatility and semi-volatile organic compounds using pixel-based approaches

Author:
Kai Song; Yuanzheng Gong; Song Guo; Daqi Lv; Hui Wang; Zichao Wan; Ying Yu; Rongzhi Tang; Tianyu Li; Rui Tan; Wenfei Zhu; Ruizhe Shen; Sihua Lu
Source:
Journal of chromatography 2022 v.1665 pp. 462808
ISSN:
0021-9673
Subject:
Gibbs free energy; air; alkanes; comprehensive two-dimensional gas chromatography; desorption; mass spectrometry; models; phenol; principal component analysis; siloxanes; volatile organic compounds; China
Abstract:
... Ambient gas- and particle-phase intermediate volatility and semi-volatile organic compounds (I/SVOCs) of Beijing were analyzed by a thermal desorption comprehensive two-dimensional gas chromatography quadrupole mass spectrometry (TD-GC × GC-qMS). A pixel-based scheme combing the integration-based approach was applied for partition coefficients estimation and fingerprints identification. Blob-by-bl ...
DOI:
10.1016/j.chroma.2022.462808

94. Investigation of the maturation effects on biomarker distributions in bituminous coals

Author:
Feixuan Cai; Ruwei Wang; Jiawei Cai; Qing Huang; Zhuliang Huang; Yuchan Xu; Qiling Yang
Source:
Organic geochemistry 2022 v.173 pp. 104496
ISSN:
0146-6380
Subject:
Triassic period; alkanes; biomarkers; carbon; coal; demethylation; geochemistry; organic matter; pollution; principal component analysis; reflectance
Abstract:
... Biomarkers in coal can evolve dramatically in terms of their concentration and distribution during coalification, limiting their use in source allocation of coal-derived pollution. Here we analyzed a broad range of aliphatics (i.e., 26 n-alkanes, 6 isoprenoids, 32 terpanes, 19 steranes) and 77 polycyclic aromatic compounds (PACs) in the Permo-Carboniferous and Late Triassic coals from the Chinese ...
DOI:
10.1016/j.orggeochem.2022.104496

95. Ionization of semi-fluorinated n‐alkanes in controlled atmosphere using flexible micro-tube plasma (FμTP) ionization source with square- and sine-wave voltage

Author:
Caiyan Tian; Luisa Speicher; Dengqi Xue; David Moreno-González; Ulrich Marggraf; Norman Ahlmann; Sebastian Brandt; Joachim Franzke; Guanghui Niu
Source:
Talanta 2022 v.249 pp. 123662
ISSN:
0039-9140
Subject:
alkanes; electric potential difference; ionization; mass spectrometry
Abstract:
... Non-thermal plasma-based ionization sources have been widely used and shown excellent soft ionization performance in mass spectrometry. Despite their extensive application, the ionization mechanisms of these sources are of great interest for further exploring their full potential. A controlled atmosphere can provide a clean and controllable ionization environment and is beneficial for studying the ...
DOI:
10.1016/j.talanta.2022.123662

96. Kinetic and statistical perspectives on the interactive effects of recalcitrant polyaromatic and sulfur heterocyclic compounds and in-vitro nanobioremediation of oily marine sediment at microcosm level

Author:
Hussein N. Nassar; Abdelrahman M. Rabie; Salem S. Abu Amr; Nour Sh El-Gendy
Source:
Environmental research 2022 v.209 pp. 112768
ISSN:
0013-9351
Subject:
Pseudomonas aeruginosa; alkanes; biodegradation; bioreactors; biosurfactants; chromatography; diesel fuel; equations; gene banks; heterocyclic compounds; hydrophobicity; kinetics; magnetite; marine sediments; mass transfer; mineralization; molecular weight; research; salt tolerance; sediment contamination; statistical analysis; sulfur; toxicity
Abstract:
... A halotolerant biosurfactant producer Pseudomonas aeruginosa strain NSH3 (NCBI Gene Bank Accession No. MN149622) was isolated to degrade high concentrations of recalcitrant polyaromatic hydrocarbons (PAHs) and polyaromatic heterocyclic sulfur compounds (PASHs). In biphasic batch bioreactors, the biodegradation and biosurfactant-production activities of NSH3 have been significantly enhanced (p < 0. ...
DOI:
10.1016/j.envres.2022.112768

97. Kinetics and Reactor Design Principles of Volatile Fatty Acid Ketonization for Sustainable Aviation Fuel Production

Author:
Jacob H. Miller; Glenn R. Hafenstine; Hannah H. Nguyen; Derek R. Vardon
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.8 pp. 2997-3010
ISSN:
1520-5045
Subject:
alkanes; carbon dioxide; chemistry; commercialization; coproducts; fuel production; hexanoic acid; process design; streams; volatile fatty acids
Abstract:
... Ketonization of wet waste-derived carboxylic acids (volatile fatty acids, VFAs) constitutes the first step of a process to catalytically upgrade VFAs to an alkane sustainable aviation fuel blendstock. VFA ketonization has been demonstrated at near-theoretical yields at the lab scale, and robust operation of industrial-scale ketonization reactors is essential for the commercialization of VFA upgrad ...
DOI:
10.1021/acs.iecr.1c04548

98. Late quaternary hydrological changes in the southeastern amazon basin from n-alkane molecular and isotopic records in sediments of Saci lake, Pará state (Brazil)

Author:
G.S. Martins; R.C. Cordeiro; B. Turcq; P.A. Meyers; M. Mendez-Millan; L.S. Moreira; D. Fontes; R.A. Rodrigues; A. Sifeddine; H. Behling; I.D. Bouloubassi
Source:
Global and planetary change 2022 v.213 pp. 103833
ISSN:
0921-8181
Subject:
Holocene epoch; Pleistocene epoch; alkanes; basins; climatic factors; evapotranspiration; forests; highlands; lakes; monsoon season; paleoclimatology; palynology; phytomass; watersheds; Amazonia; Brazil
Abstract:
... The molecular distributions and isotopic ratios (δ¹³C and δD) of n-alkanes in sediments deposited during the last 35 cal kyr BP in Saci Lake, southeastern Amazonia, have been measured and interpreted for their paleoclimate information. A terrestrial origin for the odd carbon-numbered long-chain (>C₂₇) n-alkanes has been inferred from molecular distributions. A shift in the n-alkane δ¹³C values acr ...
DOI:
10.1016/j.gloplacha.2022.103833

99. Leaf wax composition and distribution of Tillandsia landbeckii reflects moisture gradient across the hyperarid Atacama Desert

Author:
Sergio Contreras; Manlio Landahur; Karla García; Claudio Latorre; Mark Reyers; Janet Rethemeyer; Andrea Jaeschke
Source:
Plant systematics and evolution 2022 v.308 no.1 pp. 8
ISSN:
0378-2697
Subject:
Holocene epoch; Tillandsia; alkanes; biomarkers; carbon; climate change; evaporation; evolution; fatty acids; leaves; plant taxonomy; rain; vegetation
Abstract:
... In the hyperarid Atacama Desert, water availability plays a crucial role in allowing plant survival. Along with scant rainfall, marine advective fog frequently occurs along the coastal escarpment fueling isolated mono-specific patches of Tillandsia vegetation. In this study, we investigate the lipid biomarker composition of the bromeliad Tillandsia landbeckii (CAM plant) to assess structural adapt ...
DOI:
10.1007/s00606-021-01800-0

100. Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook

Author:
Sergei A. Chernyak; Massimo Corda; Jean-Pierre Dath; Vitaly V. Ordomsky; Andrei Y. Khodakov
Source:
Chemical Society reviews 2022 v.51 no.18 pp. 7994-8044
ISSN:
1460-4744
Subject:
alkanes; carbon dioxide; catalysts; chemical industry; dehydrogenation; electricity; energy efficiency; feedstocks; hydrogenation; oils; olefin; temperature
Abstract:
... Light olefins are important feedstocks and platform molecules for the chemical industry. Their synthesis has been a research priority in both academia and industry. There are many different approaches to the synthesis of these compounds, which differ by the choice of raw materials, catalysts and reaction conditions. The goals of this review are to highlight the most recent trends in light olefin s ...
DOI:
10.1039/d1cs01036k