Improving alkaline pretreatment method for preparation of whole rice waste biomass feedstock and bioethanol production

RSC Advances ◽  
2015 ◽  
Vol 5 (118) ◽  
pp. 97171-97179 ◽  
Author(s):  
Ganesh D. Saratale ◽  
Min-Kyu Oh
Keyword(s):  
Ethanol Production ◽  
Alkaline Pretreatment ◽  
Biomass Feedstock ◽  
Bioethanol Production ◽  
Waste Biomass ◽  
Biomass Hydrolysis ◽  
Pretreatment Method

Sequential NaOH + ASC + SB as an effective pretreatment method for whole rice waste biomass hydrolysis and ethanol production.

scholarly journals Simulation and Performance Analysis of Integrated Gasification–Syngas Fermentation Plant for Lignocellulosic Ethanol Production

Fermentation ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 68 ◽  
Author(s):  
Sahar Safarian ◽  
Runar Unnthorsson ◽  
Christiaan Richter
Keyword(s):  
Simulation Model ◽  
Ethanol Production ◽  
Equivalence Ratio ◽  
Operating Conditions ◽  
Production Yield ◽  
Bioethanol Production ◽  
Waste Biomass ◽  
Syngas Fermentation ◽  
And Performance ◽  
Garden Waste

This study presents a new simulation model developed with ASPEN Plus of waste biomass gasification integrated with syngas fermentation and product recovery units for bioethanol production from garden waste as a lignocellulosic biomass. The simulation model includes three modules: gasification, fermentation, and ethanol recovery. A parametric analysis is carried out to investigate the effect of gasification temperature (500–1500 °C) and equivalence ratio (0.2–0.6) on the gasification performance and bioethanol production yield. The results reveal that, for efficient gasification and high ethanol production, the operating temperature range should be 700–1000 °C, as well as an equivalence ratio between 0.2 and 0.4. At optimal operating conditions, the bioethanol production yield is 0.114 kg/h per 1 kg/h input garden waste with 50% moisture content. It is worth mentioning that this parameter increases to 0.217 kgbioethanol/kggarden waste under dry-based conditions.

Emerging techniques in bioethanol production: from distillation to waste valorization

2019 ◽  
Vol 21 (6) ◽  
pp. 1171-1185 ◽  
Author(s):  
Mohsen Gavahian ◽  
Paulo E. S. Munekata ◽  
Ismail Eş ◽  
Jose M. Lorenzo ◽  
Amin Mousavi Khaneghah ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Ethanol Production ◽  
Fuel Consumption ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Bioethanol Production ◽  
Waste Biomass ◽  
Waste Valorization ◽  
Fossil Fuel Consumption

Ethanol production from biomass, especially waste biomass, and the use of such ethanol as fuel can reduce fossil fuel consumption and ameliorate the hidden costs of burning fossil fuels such as its environmental impact.

Economic and environmental impact evaluation of various biomass feedstock for bioethanol production and correlations to lignocellulosic composition

2019 ◽  
Vol 7 ◽  
pp. 100230 ◽  
Author(s):  
Jhuma Sadhukhan ◽  
Elias Martinez-Hernandez ◽  
Myriam A. Amezcua-Allieri ◽  
Jorge Aburto ◽  
J. Amador Honorato S
Keyword(s):  
Environmental Impact ◽  
Impact Evaluation ◽  
Biomass Feedstock ◽  
Bioethanol Production ◽  
Environmental Impact Evaluation

scholarly journals Microwave Assisted Chemical Pretreatment Method for Bio-ethanol Production from Rice Straw

2017 ◽  
Vol 29 (5) ◽  
pp. 943-950 ◽  
Author(s):  
Renu Singh ◽  
Monika Srivastava ◽  
Bharti Rohatgi ◽  
Abhijit Kar ◽  
Ashish Shukla
Keyword(s):  
Ethanol Production ◽  
Rice Straw ◽  
Chemical Pretreatment ◽  
Pretreatment Method ◽  
Microwave Assisted

Bioethanol Production From High Sugary Corn Genotypes by Decreasing Enzyme Consumption

2019 ◽  
pp. 216-240 ◽  
Author(s):  
Hossain Zabed
Keyword(s):  
Biological Sciences ◽  
Literature Review ◽  
Product Quality ◽  
Ethanol Production ◽  
Comparative Evaluation ◽  
Field Experiments ◽  
Bioethanol Production ◽  
Research Questions ◽  
The University ◽  
Expected Outcomes

This is a PhD proposal defended in a 2012-2013 session at the Institute of Biological Sciences, Faculty of Science, University of Malaya, Malaysia. The proposal has been written in accordance with the requirements of the university under the sub-headings: background, problem statement, rationale, hypothesis and research questions, research objectives, literature review, methodology, scope, expected outcomes and concluding remarks, work schedule, and references. This proposal provides a comprehensive study on bioethanol production from corn. First, it discusses development and field experiments of high sugary genotypes (HSGs). Secondly, it provides a comparative evaluation of enzyme consumptions and ethanol production between normal and HSG corn genotypes. Finally, this proposal provides evaluation of the co-product quality for both groups of genotypes. The readers who are interested to conduct any further study on corn-based bioethanol would be benefited from this proposal.

scholarly journals Ultimate pretreatment of lignocellulose in bioethanol production by combining both acidic and alkaline pretreatment

2019 ◽  
Vol 268 ◽  
pp. 03002 ◽  
Author(s):  
Dinh Quan Nguyen ◽  
Le Nhat Minh Nguyen ◽  
Thi Tuong An Tran ◽  
Hoai Nhan Cao ◽  
Thi Kim Phung Le ◽  
...  
Keyword(s):  
Waste Water ◽  
High Efficiency ◽  
Acidic Solution ◽  
Alkaline Pretreatment ◽  
Lignocellulosic Materials ◽  
Bioethanol Production ◽  
Saw Dust ◽  
Lignin Removal ◽  
High Basicity ◽  
Very High

Alkaline pretreatment has been known as the most popular method to process lignocellulosic materials for bioethanol production due to its simplicity and high efficiency. However, the waste water of the process has a very high basicity, which requires neutralization with acids upon further disposal. In this study, rubber wood saw dust (Hevea brasiliensis) was employed as lignocellulosic material and its pretreatment was inspected with both diluted H2SO4 and NaOH in different combination ways. Hereby, acid was used not only for waste water neutralization but also to contribute to lignin removal. Analysis results showed that an aqueous solution of 2.0 - 2.5 wt.% H2SO4 can be used to treat the biomass followed by alkaline pretreatment. By this so-called combo-pretreatment technique, cellulose was well preserved without significant hydrolysis while the final pretreatment efficiency was up to 63.0%, compared to 48.2% of using only the alkaline solution and 13.7% of using only the acidic solution. Finally, alkaline waste water can be mixed to be neutralized with acidic waste water from the two previous steps. This innovated technique improved the pretreatment efficiency almost without increasing in chemical cost.

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