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1. Nitrogen explosive decompression pre-treatment: An alternative to steam explosion

Author:
Raud, M.; Krennhuber, K.; Jäger, A.; Kikas, T.
Source:
Energy 2019 v.177 pp. 175-182
ISSN:
0360-5442
Subject:
bioethanol,   etc   ; biomass; ethanol; glucose; nitrogen; steam; temperature;     Show all 7 Subjects
Abstract:
... When using the novel N2 explosive decompression pre-treatment, its effect was investigated in relation to the biomass structure and chemical processes during the treatment process. The results that were gained from this testing were compared to those for the widely-used steam explosion pre-treatment method in order to be able to present the advantages in using each method. Both methods are economi ...
DOI:
10.1016/j.energy.2019.04.071

2. Bioethanol facility location selection using best-worst method

Author:
Kheybari, Siamak; Kazemi, Mostafa; Rezaei, Jafar
Source:
Applied energy 2019 v.242 pp. 612-623
ISSN:
0306-2619
Subject:
bioethanol,   etc   ; decision making; developing countries; ethanol production; experts; Iran;     Show all 6 Subjects
Abstract:
... One of the major factors in the success of renewable energy is finding a proper location for production facilities. At a national level, different parts of a country (e.g. provinces) can be seen as alternatives that can be assessed based on a set of criteria, and ranking them to identify the best location. The focus in this paper is on identifying the best location for the production of bioethanol ...
DOI:
10.1016/j.apenergy.2019.03.054

3. Influence of substrate loadings on the consolidated bioprocessing of rice straw and sugarcane bagasse biomass using Ruminiclostridium thermocellum

Author:
Singh, Nisha; Mathur, Anshu S.; Barrow, Colin J.; Tuli, Deepak K.; Gupta, Ravi P.; Puri, Munish
Source:
Bioresource technology reports 2019 v.7 pp. 100138
ISSN:
2589-014X
Subject:
bioethanol,   etc   ; biomass; bioprocessing; carbon; cellulose; fermentation; rice straw; solubilization; sugarcane bagasse;     Show all 9 Subjects
Abstract:
... The enhanced fermentation effectiveness of Ruminiclostridium thermocellum on pure microcrystalline cellulose is well established. Here, direct microbial solubilization of pretreated rice straw biomass (PT-RSB) and sugarcane bagasse biomass (PT-SCB) to bioethanol by a Ruminiclostridium thermocellum strain ATCC 31924 was investigated. This study directly compared the influence of low (5 g L−1) and h ...
DOI:
10.1016/j.biteb.2019.01.010

4. Bioethanol production from sugarcane leaf waste: Effect of various optimized pretreatments and fermentation conditions on process kinetics

Author:
Moodley, Preshanthan; Gueguim Kana, E.B.
Source:
Biotechnology reports 2019 v.22 pp. e00329
ISSN:
2215-017X
Subject:
bioethanol,   etc   ; ethanol production; fermentation; hydrolysates; leaves; logit analysis; specific growth rate; steam; sugarcane; wastes;     Show all 10 Subjects
Abstract:
... This study examines the kinetics of S. cerevisiae BY4743 growth and bioethanol production from sugarcane leaf waste (SLW), utilizing two different optimized pretreatment regimes; under two fermentation modes: steam salt-alkali filtered enzymatic hydrolysate (SSA-F), steam salt-alkali unfiltered (SSA-U), microwave salt-alkali filtered (MSA-F) and microwave salt-alkali unfiltered (MSA-U). The kineti ...
DOI:
10.1016/j.btre.2019.e00329

5. Process simulation and techno-economic assessment for direct production of advanced bioethanol using a genetically modified Synechocystis sp.

Author:
Lopes, Tiago F.; Cabanas, Catarina; Silva, André; Fonseca, Diana; Santos, Edgar; Guerra, L. Tiago; Sheahan, Con; Reis, Alberto; Gírio, Francisco
Source:
Bioresource technology reports 2019 v.6 pp. 113-122
ISSN:
2589-014X
Subject:
bioethanol,   etc   ; Synechocystis; biogas; coproducts; economic feasibility; ethanol; ethanol production; microalgae; models; phycocyanin; zeaxanthin;     Show all 11 Subjects
Abstract:
... A techno-economic assessment for the direct production of ethanol using a genetically-modified microalgae has been studied. It was considered two main scenarios for process modelling: i) bioenergy-driven microalgae plant, i.e., focused on the production of fuel-grade ethanol and biogas for CHP and, ii) biorefinery-driven microalgae plant, focused on the recovery of added-value bioproducts (zeaxant ...
DOI:
10.1016/j.biteb.2019.02.010

6. Co-production of high-gravity bioethanol and succinic acid from potassium peroxymonosulfate and deacetylation sequentially pretreated sugarcane bagasse by simultaneous saccharification and co-fermentation

Author:
Bu, Jie; Yan, Xing; Wang, Yu-Tao; Zhu, Si-Ming; Zhu, Ming-Jun
Source:
Energy conversion and management 2019 v.186 pp. 131-139
ISSN:
0196-8904
Subject:
bioethanol,   etc   ; biorefining; ethanol; fermentation; lignin; lignocellulose; moieties; potassium; saccharification; succinic acid; sugarcane bagasse; yeasts;     Show all 12 Subjects
Abstract:
... Pretreatment is a necessary step in the process of biorefinery of lignocellulosics. Here, a novel sequential sugarcane bagasse (SCB) pretreatment method was developed based on potassium peroxymonosulfate (PMS) and alkaline deacetylation (AD) under mild conditions. The co-pretreatment could efficiently remove the lignin and acetyl groups, resulting in a holocellulose-rich (83.5%) solid with superio ...
DOI:
10.1016/j.enconman.2019.02.038

7. Experimental investigation on the effects of bioethanol addition in diesel-biodiesel blends on emissions and performances of a micro-cogeneration system

Author:
Caligiuri, Carlo; Renzi, Massimiliano; Bietresato, Marco; Baratieri, Marco
Source:
Energy conversion and management 2019 v.185 pp. 55-65
ISSN:
0196-8904
Subject:
bioethanol,   etc   ; energy conversion; environmental impact; fossil fuels; gas emissions; internal combustion engines; opacity; power generation; smoke;     Show all 9 Subjects
Abstract:
... Internal combustion engines are well spread in traditional power-generation systems: given their reliability, low-cost and performance it is desirable to avoid their full substitution in the short term, but, rather, to rely on the reduction of their environmental impact. This can be achieved by implementing solutions that involve minor modifications on the devices, such as the use of different fue ...
DOI:
10.1016/j.enconman.2019.01.097

8. Effective Generalized Disjunctive Programming Models for Modular Process Synthesis

Author:
Chen, Qi; Grossmann, Ignacio E.
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.15 pp. 5873-5886
ISSN:
1520-5045
Subject:
bioethanol,   etc   ; algorithms; case studies; heat transfer; models; problem solving; process design; processing chemistry; transportation;     Show all 9 Subjects
Abstract:
... We propose an optimization-based strategy to systematically evaluate trade-offs associated with modular alternatives for the multiperiod design of a chemical processing network. We give a general formulation as a Generalized Disjunctive Program (GDP) and discuss a linearizing reformulation that exploits structure common to modular design problems. By modeling the GDP in the Pyomo algebraic modelin ...
DOI:
10.1021/acs.iecr.8b04600

9. Utilizing sugarcane leaves/straws as source of bioenergy in the Philippines: A case in the Visayas Region

Author:
Go, Alchris Woo; Conag, Angelique T.
Source:
Renewable energy 2019 v.132 pp. 1230-1237
ISSN:
0960-1481
Subject:
bioethanol,   etc   ; biogas; coal; combustion; crops; electricity generation; harvesting; islands; leaves; mixing; straw; sugarcane; Philippines;     Show all 13 Subjects
Abstract:
... The Philippines is an agricultural country comprised of three major regions: Luzon, Visayas, and Mindanao. Sugarcane is the top produced agricultural crop in the Philippines which, during its harvesting, leaves behind residues composed mostly of sugarcane leaves/straws (SCL). These residues may be utilized for production of biofuels. However, despite SCL being one of the predominant agro-industria ...
DOI:
10.1016/j.renene.2018.09.029

10. Enhancement of the carbohydrate content in Spirulina by applying CO2, thermoelectric fly ashes and reduced nitrogen supply

Author:
Braga, Vagner da Silva; Moreira, Juliana Botelho; Costa, Jorge Alberto Vieira; Morais, Michele Greque de
Source:
International journal of biological macromolecules 2019 v.123 pp. 1241-1247
ISSN:
0141-8130
Subject:
bioethanol,   etc   ; Spirulina; carbohydrate content; carbohydrates; carbon dioxide; carbon dioxide fixation; fly ash; nitrogen; sodium nitrate;     Show all 9 Subjects
Abstract:
... This study focused on evaluating whether the injection of CO2, which is associated with the use of thermoelectric fly ashes and a reduced supply of nitrogen, affects the production of intracellular carbohydrates from Spirulina. For this purpose, the addition of 0.25 g L−1 of NaNO3, along with a 10% (v v−1) of CO2 injection, a flow rate of 0.3 vvm for 1 or 5 min, as well as 0, 120 and 160 ppm of fl ...
DOI:
10.1016/j.ijbiomac.2018.12.037

11. Modeling of Catalyst Deactivation in Bioethanol Dehydration Reactor

Author:
Demuner, Rafael Brandão; Soares Santos Maia, Jeiveison Gobério; Secchi, Argimiro Resende; Melo, Príamo Albuquerque; do Carmo, Roberto Werneck; Gusmão, Gabriel Sabença
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.8 pp. 2717-2726
ISSN:
1520-5045
Subject:
bioethanol,   etc   ; catalysts; chemical species; ethanol; ethylene; industry; mathematical models; polyethylene; process design; temperature profiles;     Show all 10 Subjects
Abstract:
... The catalytic ethanol dehydration route is a reality for the production of polyethylene from renewable sources. Ethanol dehydration process is performed in the presence of acid catalysts, under temperatures ranging from 500 K to 800 K, obtaining ethylene selectivity ranging from 95% to 99% and ethanol conversion of >98%. Despite the favorable values of conversion and selectivity, catalyst deactiva ...
DOI:
10.1021/acs.iecr.8b05699

12. Bioethanol production from palm wood using Trichoderma reesei and Kluveromyces marxianus

Author:
Raja Sathendra, E.; Baskar, G.; Praveenkumar, R.; Gnansounou, Edgard
Source:
Bioresource technology 2019 v.271 pp. 345-352
ISSN:
0960-8524
Subject:
bioethanol,   etc   ; Trichoderma reesei; agitation; ethanol production; hydrolysates; hydrolysis; inoculum; lignin; pH; temperature; topology; wood;     Show all 12 Subjects
Abstract:
... In the present work, palm wood was pretreated using hydrothermal technique in conjunction with chemical method for removal of lignin. Pretreated palm wood was subjected to hydrolysis using Trichoderma reesei MTCC 4876. Subsequently bioethanol was produced using palm wood hydrolysate by Kluveromyces marxianus MTCC 1389. RSM was used to identify the non-linear relationship and optimize various proce ...
DOI:
10.1016/j.biortech.2018.09.134

13. Development of an advanced integrative process to create valuable biosugars including manno-oligosaccharides and mannose from spent coffee grounds

Author:
Nguyen, Quynh Anh; Cho, Eun Jin; Lee, Dae-Seok; Bae, Hyeun-Jong
Source:
Bioresource technology 2019 v.272 pp. 209-216
ISSN:
0960-8524
Subject:
bioethanol,   etc   ; defatting; delignification; enzymatic hydrolysis; ethanol production; lignocellulose; mannose; oligosaccharides; raw materials; wastes;     Show all 10 Subjects
Abstract:
... Spent coffee grounds (SCG) or coffee residue wastes (CRW) provide excellent raw material for mannose and bioethanol production. In this study, SCG were used to produce valuable biosugars, including oligosaccharides (OSs), manno-oligosaccharides (MOSs), mannose, and bioethanol. SCG were subjected to delignification and defatting, producing SCG-derived polysaccharides. Two-stage enzymatic hydrolysis ...
DOI:
10.1016/j.biortech.2018.10.018

14. Efficient saccharification of agave biomass using Aspergillus niger produced low-cost enzyme cocktail with hyperactive pectinase activity

Author:
Wang, Jiahong; Chio, Chonlong; Chen, Xuntong; Su, Erzheng; Cao, Fuliang; Jin, Yongcan; Qin, Wensheng
Source:
Bioresource technology 2019 v.272 pp. 26-33
ISSN:
0960-8524
Subject:
bioethanol,   etc   ; Agave; Aspergillus niger; biomass; enzyme activity; feedstocks; fungi; polygalacturonase; polysaccharides; saccharification; wheat straw;     Show all 11 Subjects
Abstract:
... To develop a cost-effective, time-saving and efficient saccharification system for converting biomass into mono-/oligo-saccharides for production of bioethanol or other biochemicals, a relatively low recalcitrant and widely available biomass Agave americana was selected as feedstock. During the investigation of efficient enzyme cocktail, pectinase, which usually is neglect for biomass saccharifica ...
DOI:
10.1016/j.biortech.2018.09.069

15. Bioethanol production from Solanum lycocarpum starch: A sustainable non-food energy source for biofuels

Author:
Morais, Ricardo R.; Pascoal, Aline M.; Pereira-Júnior, Marcos A.; Batista, Karla A.; Rodriguez, Armando G.; Fernandes, Kátia F.
Source:
Renewable energy 2019 v.140 pp. 361-366
ISSN:
0960-1481
Subject:
bioethanol,   etc   ; Solanum lycocarpum; alpha-amylase; energy; ethanol production; fermentation; fruits; glucan 1,4-alpha-glucosidase; glucose; polymers; starch;     Show all 11 Subjects
Abstract:
... In this study the starch from Solanum lycocarpum fruit was used for bioethanol production. S. lycocarpum starch was hydrolyzed in a serial reactor containing α-amylase and glucoamylase immobilized onto glutaraldehyde-derivative polyaniline, producing 91.6% of glucose for a 10% starch suspension and 86.3% of glucose for a 20% starch suspension after 60 min of reaction. Fermentation parameters for b ...
DOI:
10.1016/j.renene.2019.02.056

16. Bioethanol production from enzymatic hydrolysates of Agave salmiana leaves comparing S. cerevisiae and K. marxianus

Author:
Láinez, Magdiel; Ruiz, Héctor A.; Arellano-Plaza, Melchor; Martínez-Hernández, Sergio
Source:
Renewable energy 2019 v.138 pp. 1127-1133
ISSN:
0960-1481
Subject:
bioethanol,   etc   ; Agave salmiana; Kluyveromyces marxianus; Saccharomyces cerevisiae; enzymatic treatment; ethanol; ethanol production; fermentation; glucose; hydrolysates; leaves; saccharification;     Show all 12 Subjects
Abstract:
... This work reports an improved process of enzymatic saccharification on Agave salmiana leaves and its conversion into bioethanol comparing strains of Saccharomyces cerevisiae ethanol RED and Kluyveromyces marxianus OFF1. A. salmiana leaves were pretreated with acid-alkaline sequential process before the application of several treatments of enzymatic saccharification. In the results, the best enzyma ...
DOI:
10.1016/j.renene.2019.02.058

17. Evaluation of inhibition of lignocellulose-derived by-products on bioethanol production by using the QSAR method and mechanism study

Author:
Hou, Jinju; Tang, Jiawen; Chen, Jinhuan; Deng, Jie; Wang, Juan; Zhang, Qiuzhuo
Source:
Biochemical engineering journal 2019 v.147 pp. 153-162
ISSN:
1369-703X
Subject:
bioethanol,   etc   ; additive effect; antagonism; byproducts; ethanol fermentation; ethanol production; ferulic acid; hydrogen bonding; hydrolysates; lignocellulose; models; quantitative structure-activity relationships;     Show all 12 Subjects
Abstract:
... To evaluate the inhibition of by-products that exist in pretreated lignocellulose hydrolysate on bioethanol fermentation, quantitative structure-activity relationship (QSAR) models were established in the present study. These models have the potential to predict the fermentation inhibition to minimize the experimental effort. They also provided an innovative methodology for removing fermentation i ...
DOI:
10.1016/j.bej.2019.04.013

18. A comparative account of glucose yields and bioethanol production from separate and simultaneous saccharification and fermentation processes at high solids loading with variable PEG concentration

Author:
Kadhum, Haider Jawad; Mahapatra, Durga Madhab; Murthy, Ganti S.
Source:
Bioresource technology 2019 v.283 pp. 67-75
ISSN:
0960-8524
Subject:
bioethanol,   etc   ; economic feasibility; enzymatic hydrolysis; ethanol; ethanol production; fermentation; glucose; hydrolysis; life cycle assessment; polyethylene glycol; saccharification; wheat straw;     Show all 12 Subjects
Abstract:
... A process strategy to aid in optimal enzymatic hydrolysis through the addition of polyethylene glycol (PEG6000) was tested for separate hydrolysis and fermentation (SHF) and simultaneous saccharification and fermentation (SSF). Pretreated wheat straw at 30% solids (w/w) loading was enzymatically hydrolyzed with 0, 0.5, 1, 1.5, 2 and 2.5% of PEG6000 through SHF and SSF. During SHF, bioethanol conce ...
DOI:
10.1016/j.biortech.2019.03.060

19. Adsorption of 2–nitrophenol using rice straw and rice husks hydrolyzed by subcritical water

Author:
Abaide, Ederson R.; Dotto, Guilherme L.; Tres, Marcus V.; Zabot, Giovani L.; Mazutti, Marcio A.
Source:
Bioresource technology 2019 v.284 pp. 25-35
ISSN:
0960-8524
Subject:
bioethanol,   etc   ; adsorbents; adsorption; biomass; coproducts; heat production; hydrolysis; liquids; models; nitrophenols; pH; rice hulls; rice straw; sorption isotherms; temperature;     Show all 15 Subjects
Abstract:
... The potential of rice husks and straw as adsorbents after being processed by subcritical water hydrolysis (SWH) was investigated. The influences of temperature (453, 493 and 533 K) and liquid/solid ratio (7.5 and 15 g water/g biomass) on the rice straw and rice husks characteristics and on the adsorption capacity of 2-nitrophenol were evaluated at pH 4 and 7. Adsorption kinetics, equilibrium and t ...
DOI:
10.1016/j.biortech.2019.03.110

20. Choice of Pretreatment Technology for Sustainable Production of Bioethanol from Lignocellulosic Biomass: Bottle Necks and Recommendations

Author:
Naresh Kumar, Manickam; Ravikumar, Rajarathinam; Thenmozhi, Senniyappan; Ranjith Kumar, Moorthy; Kirupa Shankar, Muthuvel
Source:
Waste and biomass valorization 2019 v.10 no.6 pp. 1693-1709
ISSN:
1877-2641
Subject:
bioethanol,   etc   ; biomass; cost effectiveness; economic feasibility; energy; ethanol production; ethics; food crops; fuel production; lignocellulose; production technology; wastes;     Show all 12 Subjects
Abstract:
... Sustainable and renewable resources are inevitable factors for biofuel production to meet the energy and transportation fuel demand of a nation. The urge in meeting the energy demand can be achieved by intensified research on agricultural and waste biomass utilization. In recent days, advanced agricultural practice throughout the world generates surplus biomass residues and this can be utilized th ...
DOI:
10.1007/s12649-017-0177-6