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1. Life-cycle assessment of two sewage sludge-to-energy systems based on different sewage sludge characteristics: Energy balance and greenhouse gas-emission footprint analysis

Author:
Chen, Renjie; Yuan, Shijie; Chen, Sisi; Ci, Hanlin; Dai, Xiaohu; Wang, Xiankai; Li, Chong; Wang, Dianchang; Dong, Bin
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 380-391
ISSN:
1001-0742
Subject:
feedstocks,   etc   ; anaerobic digestion; credit; energy balance; energy efficiency; greenhouse gas emissions; greenhouses; life cycle assessment; sewage; sewage sludge; China;     Show all 11 Subjects
Abstract:
... Anaerobic digestion and incineration are widely used sewage sludge (SS) treatment and disposal approaches to recovering energy from SS, but it is difficult to select a suitable technical process from the various technologies. In this study, life-cycle assessments were adopted to compare the energy- and greenhouse gas- (GHG) emission footprints of two sludge-to-energy systems. One system uses a com ...
DOI:
10.1016/j.jes.2021.04.012

2. A review on the selection of raw materials and reactors for biomass fast pyrolysis in China

Author:
Cai, Wenfei; Luo, Zhongyang; Zhou, Jinsong; Wang, Qinhui
Source:
Fuel processing technology 2021 v.221 pp. 106919
ISSN:
0378-3820
Subject:
feedstocks,   etc   ; biomass; pyrolysis; China;     Show all 4 Subjects
Abstract:
... Renewable fuels and chemicals can be obtained from biomass through the fast pyrolysis process. However, the biomass recalcitrance, the drawbacks of the fast pyrolysis process/ reactor, and the poor properties of the end-products hinder the development of the relatively simple and effective conversion technology strongly. The choice of the optimum types of the biomass resources and the choice of th ...
DOI:
10.1016/j.fuproc.2021.106919

3. Diastereoselective Synthesis of Tetracyclic Tetrahydroquinoline Derivative Enabled by Multicomponent Reaction of Isocyanide, Allenoate, and 2-Aminochalcone

Author:
Wang, Zhishuang; Fei, Youwen; Tang, Chongrong; Cui, Lei; Shen, Jie; Yin, Kun; Lu, Shanya; Li, Jian
Source:
Organic letters 2021 v.23 no.11 pp. 4094-4098
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; diastereoselective synthesis; diastereoselectivity;     Show all 3 Subjects
Abstract:
... We report here a multicomponent protocol to assemble several polycyclic dihydropyran-fused tetrahydroquinoline structures with excellent diastereoselectivity. This procedure employs simple feedstocks to accomplish a series of diverse structures, which is difficult to attain by traditional sequences. ...
DOI:
10.1021/acs.orglett.1c00912

4. Nanoparticle synthesis using two-coil tandem-type modulated induction thermal plasmas

Author:
Furukawa, Ryudai; Tanaka, Yasunori; Nakano, Yusuke; Akashi, Keita; Ishijima, Tatsuo; Watanabe, Shu; Sueyasu, Shiori; Nakamura, Keitaro
Source:
Powder technology 2021 v.389 pp. 460-470
ISSN:
0032-5910
Subject:
feedstocks,   etc   ; light; photocatalysis; temperature; vapors;     Show all 5 Subjects
Abstract:
... This report describes experimentally obtained results on nanoparticle synthesis using two-coil tandem-type modulated induction thermal plasma (tandem-MITP). The developed tandem-MITP is operated by two coils with independently modulated high-frequency coil current. Tandem-MITP can offer unique temporo-spatially controlled high-temperature fields in thermal plasmas, as well as high-rate quenching o ...
DOI:
10.1016/j.powtec.2021.05.057

5. Metal-, Photocatalyst-, and Light-Free Minisci C–H Acetylation of N-Heteroarenes with Vinyl Ethers

Author:
Dong, Jianyang; Liu, Jianhua; Song, Hongjian; Liu, Yuxiu; Wang, Qingmin
Source:
Organic letters 2021 v.23 no.11 pp. 4374-4378
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; acetylation; photocatalysis; temperature; toxicity;     Show all 5 Subjects
Abstract:
... Herein, we report a mild, operationally simple method for Minisci C–H acetylation of N-heteroarenes using vinyl ethers as robust, inexpensive acetyl sources. The reactions do not require a conventional photocatalysis, electrocatalysis, metal catalysis, light activation, or high temperature. This method is thus significantly more sustainable than previously reported methods in terms of cost, reagen ...
DOI:
10.1021/acs.orglett.1c01310

6. Intelligent phase-transition MnO₂ single-crystal shell enabling a high-capacity Li-rich layered cathode in Li-ion batteries

Author:
Liu, Deyuan; Yang, Jian; Hou, Junming; Liao, Jiaxuan; Wu, Mengqiang
Source:
RSC advances 2021 v.11 no.21 pp. 12771-12783
ISSN:
2046-2069
Subject:
feedstocks,   etc   ; cathodes; electrochemistry; phase transition;     Show all 4 Subjects
Abstract:
... Layered, Li-rich Mn-based oxides (LLMOs) are the most promising next-generation, high-energy batteries due to their relatively high specific capacities and high voltages. However, the practical application of LLMO cathodes is limited by low initial coulombic efficiencies (CEs) and poor cycling performance. Herein, we used the reaction of KMnO₄ and MnSO₄ under hydrothermal conditions to grow a nano ...
DOI:
10.1039/d1ra01561c

7. Cobalt-Catalyzed Intermolecular C–H Amidation of Unactivated Alkanes

Author:
Lee, Jeonghyo; Jin, Seongho; Kim, Dongwook; Hong, Soon Hyeok; Chang, Sukbok
Source:
Journal of the American Chemical Society 2021 v.143 no.13 pp. 5191-5200
ISSN:
1520-5126
Subject:
feedstocks,   etc   ; cobalt; hydrogen; value added;     Show all 4 Subjects
Abstract:
... Alkanes are an abundant and inexpensive source of hydrocarbons; thus, development of new methods to convert the hydrocarbon feedstocks to value-added chemicals is of high interest. However, it is challenging to achieve such transformation in a direct and selective manner mainly due to the intrinsic inertness of their C–H bonds. We herein report a tailored Cp*Co(III)(LX)-catalyzed efficient and sit ...
DOI:
10.1021/jacs.1c01524

8. Modular Synthesis of 9,10-Dihydroacridines through an ortho-C Alkenylation/Hydroarylation Sequence between Anilines and Aryl Alkynes in Hexafluoroisopropanol

Author:
Wang, Shengdong; Force, Guillaume; Carpentier, Jean-François; Sarazin, Yann; Bour, Christophe; Gandon, Vincent; Lebœuf, David
Source:
Organic letters 2021 v.23 no.7 pp. 2565-2570
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; alkynes; catalysts; olefin; synthesis;     Show all 5 Subjects
Abstract:
... 9,10-Dihydroacridines are frequently encountered as key scaffolds in OLEDs. However, accessing those compounds from feedstock precursors typically requires multiple steps. Herein, a modular one-pot synthesis of 9,10-dihydroacridine frameworks is achieved through a reaction sequence featuring a selective ortho-C alkenylation of diarylamines with aryl alkynes followed by an intramolecular hydroaryla ...
DOI:
10.1021/acs.orglett.1c00487

9. Di-tert-butyldiphosphatetrahedrane as a building block for phosphaalkenes and phosphirenes

Author:
Hierlmeier, Gabriele; Uttendorfer, Maria K.; Wolf, Robert
Source:
Chemical communications 2021 v.57 no.19 pp. 2356-2359
ISSN:
1364-548X
Subject:
feedstocks,   etc   ; carbenes; heterocyclic nitrogen compounds;     Show all 3 Subjects
Abstract:
... The remarkable ‘mixed’ diphosphatetrahedrane (tBuCP)₂ (1) – which is both the elusive dimeric form of the phosphaalkyne tBuCP and an isolobal analogue of the important industrial feedstock P₄ – was recently isolated for the first time; however, its chemistry remains unexplored. Herein we report that treatment of 1 with various N-heterocyclic carbenes readily yields unusual, unsaturated organophosp ...
DOI:
10.1039/d0cc07103j

10. Growth of vertical graphene materials by an inductively coupled plasma with solid-state carbon sources

Author:
Fu, Wenjie; Zhao, Xin; Zheng, Wei
Source:
Carbon 2021 v.173 pp. 91-96
ISSN:
0008-6223
Subject:
feedstocks,   etc   ; graphene; hydrogen; radio waves;     Show all 4 Subjects
Abstract:
... A novel plasma assisted thin-film growth method of the free-standing few-layer graphene-based hierarchy complex material (aka. Growth of vertical graphene thereafter for simplicity) is presented in this article. Conventional solid-state carbon materials, i.e. commodity flexible graphite papers, is developed as a precursor feedstock for the growth of vertical graphene, in contrast to the prevailing ...
DOI:
10.1016/j.carbon.2020.10.072

11. Lignin valorization by bacterial genus Pseudomonas: State-of-the-art review and prospects

Author:
Kumar, Manish; You, Siming; Beiyuan, Jingzi; Luo, Gang; Gupta, Juhi; Kumar, Sunil; Singh, Lal; Zhang, Shicheng; Tsang, Daniel C.W.
Source:
Bioresource technology 2021 v.320 pp. 124412
ISSN:
0960-8524
Subject:
feedstocks,   etc   ; Pseudomonas; depolymerization; lignin; technology;     Show all 5 Subjects
Abstract:
... The most prominent aromatic feedstock on Earth is lignin, however, lignin valorization is still an underrated subject. The principal preparatory strategies for lignin valorization are fragmentation and depolymerization which help in the production of fuels and chemicals. Owing to lignin’s structural heterogeneity, these strategies result in product generation which requires tedious separation and ...
DOI:
10.1016/j.biortech.2020.124412

12. Formation of nitrogen functionalities in biochar materials and their role in the mitigation of hazardous emerging organic pollutants from wastewater

Author:
Başer, Begüm; Yousaf, Balal; Yetis, Ulku; Abbas, Qumber; Kwon, Eilhann E.; Wang, Shengsen; Bolan, Nanthi S.; Rinklebe, Jörg
Source:
Journal of hazardous materials 2021 v.416 pp. 126131
ISSN:
0304-3894
Subject:
feedstocks,   etc   ; adsorption; biochar; biomass; nitrogen; wastewater;     Show all 6 Subjects
Abstract:
... Emerging organic pollutants (EOPs) are serious environmental concerns known for their prominent adverse and hazardous ecological effects, and persistence in nature. Their detrimental impacts have inspired researchers to develop the strategic tools that reduce and overcome the challenges caused by EOPs' rising concentration. As such, biochar becomes as a promising class of biomass-derived functiona ...
DOI:
10.1016/j.jhazmat.2021.126131

13. The effect of post-consumer recycled polyethylene (PCRPE) on the properties of polyethylene blends of different densities

Author:
Cecon, Victor S.; Da Silva, Paulo F.; Vorst, Keith L.; Curtzwiler, Greg W.
Source:
Polymer degradation and stability 2021 v.190 pp. 109627
ISSN:
0141-3910
Subject:
feedstocks,   etc   ; degradation; polyethylene; strength (mechanics); toxicity; wastes;     Show all 6 Subjects
Abstract:
... Polyethylene (PE), a versatile polymer present nearly everywhere, poses many challenges as more of it becomes terrestrial and marine waste and used for everything from packaging such as plastic bag production (LDPE) to construction pipes (HDPE). As more companies are required to follow government regulations and consumers’ requests to produce more sustainable products, the general interest in PE r ...
DOI:
10.1016/j.polymdegradstab.2021.109627

14. Recent approaches for enhanced production of microbial polyhydroxybutyrate: Preparation of biocomposites and applications

Author:
Anjana,; Raturi, Gaurav; Shree, Shweta; Sharma, Amita; Panesar, Parmjit S.; Goswami, Saswata
Source:
International journal of biological macromolecules 2021 v.182 pp. 1650-1669
ISSN:
0141-8130
Subject:
feedstocks,   etc   ; biocomposites; biodegradability; biomass; petroleum; technology;     Show all 6 Subjects
Abstract:
... In modern decades, an increase in environmental awareness has attracted the keen interest of researchers to investigate eco-sustainable, recyclable materials to minimize reliance on petroleum-based polymeric compounds. Poly (3-hydroxybutyrate) is amorphous, linear, and biodegradable bacterial polyesters that belong to the polyhydroxyalkanoates family with enormous applications in many fields. The ...
DOI:
10.1016/j.ijbiomac.2021.05.037

15. Toward sustainable, cell-free biomanufacturing

Author:
Rasor, Blake J; Vögeli, Bastian; Landwehr, Grant M; Bogart, Jonathan W; Karim, Ashty S; Jewett, Michael C
Source:
Current opinion in biotechnology 2021 v.69 pp. 136-144
ISSN:
0958-1669
Subject:
feedstocks,   etc   ; biotechnology; carbon; carbon dioxide; energy; homeostasis;     Show all 6 Subjects
Abstract:
... Industrial biotechnology is an attractive approach to address the need for low-cost fuels and products from sustainable resources. Unfortunately, cells impose inherent limitations on the effective synthesis and release of target products. One key constraint is that cellular survival objectives often work against the production objectives of biochemical engineers. Additionally, industrial strains r ...
DOI:
10.1016/j.copbio.2020.12.012

16. A Cyclic Ruthenium Benzylidene Initiator Platform Enhances Reactivity for Ring-Expansion Metathesis Polymerization

Author:
Wang, Teng-Wei; Huang, Pin-Ruei; Chow, Jayme L.; Kaminsky, Werner; Golder, Matthew R.
Source:
Journal of the American Chemical Society 2021 v.143 no.19 pp. 7314-7319
ISSN:
1520-5126
Subject:
feedstocks,   etc   ; ligands; olefin; polymerization; reaction kinetics; ruthenium;     Show all 6 Subjects
Abstract:
... Ring-expansion metathesis polymerization (REMP) has shown potential as an efficient strategy to access cyclic macromolecules. Current approaches that utilize cyclic olefin feedstocks suffer from poor functional group tolerance, low initiator stability, and slow reaction kinetics. Improvements to current initiators will address these issues in order to develop more versatile and user-friendly techn ...
DOI:
10.1021/jacs.1c03491

17. Selective Phosphoranation of Unactivated Alkynes with Phosphonium Cation To Achieve Isoquinoline Synthesis

Author:
Cui, Hong; Bai, Jinku; Ai, Tianyu; Zhan, Ye; Li, Guanzhong; Rao, Honghua
Source:
Organic letters 2021 v.23 no.10 pp. 4023-4028
ISSN:
1523-7052
Subject:
feedstocks,   etc   ; alkynes; cations; imines; isoquinolines; oximes;     Show all 6 Subjects
Abstract:
... We herein develop a selective phosphoranation of alkynes with phosphonium cation, which directs a concise approach to isoquinolines from unactivated alkyne and nitrile feedstocks in a single step. Mechanistic studies suggest that the annulation reaction is initiated by the unprecedented phosphoranation of alkynes, thus representing a unique reaction pattern of phosphonium salts and distinguishing ...
DOI:
10.1021/acs.orglett.1c01237

18. Engineering Acinetobacter baylyi ADP1 for mevalonate production from lignin-derived aromatic compounds

Author:
Arvay, Erika; Biggs, Bradley W.; Guerrero, Laura; Jiang, Virginia; Tyo, Keith
Source:
Metabolic Engineering Communications 2021 pp. e00173
ISSN:
2214-0301
Subject:
feedstocks,   etc   ; Acinetobacter; ambient temperature; lignin; renewable resources;     Show all 5 Subjects
Abstract:
... Utilization of lignin, an abundant renewable resource, is limited by its heterogenous composition and complex structure. Biological valorization of lignin provides advantages over traditional chemical processing as it occurs at ambient temperature and pressure and does not use harsh chemicals. Furthermore, the ability to biologically funnel heterogenous substrates to products eliminates the need f ...
DOI:
10.1016/j.mec.2021.e00173

19. Potential ethanol biorefinery sites based on agricultural residues in Alberta, Canada: A GIS approach with feedstock variability

Author:
Zheng, Yanan; Doll, Claire A.; Qiu, Feng; Anderson, Jay A.; Hauer, Grant; Luckert, M.K.
Source:
Biosystems engineering 2021 v.204 pp. 223-234
ISSN:
1537-5110
Subject:
feedstocks,   etc   ; biorefining; crop yield; ethanol; ovens; Alberta;     Show all 6 Subjects
Abstract:
... Though numerous studies have investigated optimal locations for biorefineries given the availability of feedstock supplies, few have considered that these supplies could vary over time, thereby potentially failing to meet feedstock requirements. In this paper, we develop a process for identifying a shortlist of five potentially viable biorefinery sites in Alberta, and then consider the stochastic ...
DOI:
10.1016/j.biosystemseng.2021.01.010

20. Assessment of Long-Term Fermentability of PHA-Based Materials from Pure and Mixed Microbial Cultures for Potential Environmental Applications

Author:
Amanat, Neda; Matturro, Bruna; Rossi, Marta Maria; Valentino, Francesco; Villano, Marianna; Petrangeli Papini, Marco
Source:
Water 2021 v.13 no.7
ISSN:
2073-4441
Subject:
feedstocks,   etc   ; carbon; fermentation; polyhydroxyalkanoates; remediation; water;     Show all 6 Subjects
Abstract:
... The use of polyhydroxyalkanoates (PHA) as slow-release electron donors for environmental remediation represents a novel and appealing application that is attracting considerable attention in the scientific community. In this context, here, the fermentation pattern of different types of PHA-based materials has been investigated in batch and continuous-flow experiments. Along with commercially avail ...
DOI:
10.3390/w13070897