Routes To Cellulosic Ethanol
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Routes To Cellulosic Ethanol
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Author : Marcos Silveira Buckeridge
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-01-07
Routes To Cellulosic Ethanol written by Marcos Silveira Buckeridge and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-07 with Science categories.
The perception that civilization is crossing a period of Global Climatic Changes that can seriously threaten our lifestyle, along with energy security and the search for prosperity, are the main drivers that are pushing men to use more biomass as a source of energy. It will be crucial that such intent will include a large parcel of sustainability so that more renewable energy becomes available for populations. Because large amounts of energy are “hidden” in carbon polymers made by plants, notably carbohydrates, it is obvious that if technologies are developed to produce liquid fuels such as ethanol from carbohydrate polymers such as cellulose, men could significantly increase energy sustainability . This book reviews general aspects of biomass utilization for bioenergy production as well as strategies using biochemistry, molecular biology, chemistry and physics to disassemble plant cell walls. Recent discoveries of basic science under development in several laboratories in the world are reviewed by experts that have been intensively working with many aspects that will impact the development of the technology of production of cellulosic ethanol.
Routes To Cellulosic Ethanol
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Author : Marcos Silveira Buckeridge
language : en
Publisher: Springer
Release Date : 2011-01-13
Routes To Cellulosic Ethanol written by Marcos Silveira Buckeridge and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-13 with Science categories.
The perception that civilization is crossing a period of Global Climatic Changes that can seriously threaten our lifestyle, along with energy security and the search for prosperity, are the main drivers that are pushing men to use more biomass as a source of energy. It will be crucial that such intent will include a large parcel of sustainability so that more renewable energy becomes available for populations. Because large amounts of energy are “hidden” in carbon polymers made by plants, notably carbohydrates, it is obvious that if technologies are developed to produce liquid fuels such as ethanol from carbohydrate polymers such as cellulose, men could significantly increase energy sustainability . This book reviews general aspects of biomass utilization for bioenergy production as well as strategies using biochemistry, molecular biology, chemistry and physics to disassemble plant cell walls. Recent discoveries of basic science under development in several laboratories in the world are reviewed by experts that have been intensively working with many aspects that will impact the development of the technology of production of cellulosic ethanol.
Handbook Of Cellulosic Ethanol
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Author : Ananda S. Amarasekara
language : en
Publisher: Wiley-Scrivener
Release Date : 2013-12-06
Handbook Of Cellulosic Ethanol written by Ananda S. Amarasekara and has been published by Wiley-Scrivener this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-06 with Technology & Engineering categories.
"This book gives the background, scientific theory, and recent research progress in producing cellulosic ethanol via different routes, as well as future directions, covering all aspects of cellulosic ethanol"--
Lignocellulose Conversion
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Author : Vincenza Faraco
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-12
Lignocellulose Conversion written by Vincenza Faraco and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-12 with Science categories.
Bioethanol has been recognized as a potential alternative to petroleum-derived transportation fuels. Even if cellulosic biomass is less expensive than corn and sugarcane, the higher costs for its conversion make the near-term price of cellulosic ethanol higher than that of corn ethanol and even more than that of sugarcane ethanol. Conventional process for bioethanol production from lignocellulose includes a chemical/physical pre-treatment of lignocellulose for lignin removal, mostly based on auto hydrolysis and acid hydrolysis, followed by saccharification of the free accessible cellulose portions of the biomass. The highest yields of fermentable sugars from cellulose portion are achieved by means of enzymatic hydrolysis, currently carried out using a mix of cellulases from the fungus Trichoderma reesei. Reduction of (hemi)cellulases production costs is strongly required to increase competitiveness of second generation bioethanol production. The final step is the fermentation of sugars obtained from saccharification, typically performed by the yeast Saccharomyces cerevisiae. The current process is optimized for 6-carbon sugars fermentation, since most of yeasts cannot ferment 5-carbon sugars. Thus, research is aimed at exploring new engineered yeasts abilities to co-ferment 5- and 6-carbon sugars. Among the main routes to advance cellulosic ethanol, consolidate bio-processing, namely direct conversion of biomass into ethanol by a genetically modified microbes, holds tremendous potential to reduce ethanol production costs. Finally, the use of all the components of lignocellulose to produce a large spectra of biobased products is another challenge for further improving competitiveness of second generation bioethanol production, developing a biorefinery.
Advances Of Basic Science For Second Generation Bioethanol From Sugarcane
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Author : Marcos S. Buckeridge
language : en
Publisher: Springer
Release Date : 2017-03-10
Advances Of Basic Science For Second Generation Bioethanol From Sugarcane written by Marcos S. Buckeridge and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-10 with Science categories.
This book focuses on the basic science recently produced in Brazil for the improvement of sugarcane as a bioenergy crop and as a raw material for 2nd generation bioethanol production. It reports achievements that have been advancing the science of cell walls, enzymes, genetics, and sustainability related to sugarcane technologies and give continuity to the research reported in the “Routes to Cellulosic Ethanol”, from Springer. The Introduction (Chapter I) explains how the National Institute of Science and Technology of Bioethanol, founded in 2008 in Brazil, became part of the main international initiatives that started to search for forms to use biomass for bioethanol production in Brazil, US and Europe. Part I reports the advances in plant cell wall composition, structure and architecture, and physical characteristics of sugarcane biomass. These discoveries are opening the way to increased efficiency of pretreatments and hydrolysis, being therefore important information for 2nd generation processes as well as for biorefinery initiatives. Part II focuses on the discovery and characterization of hydrolases from microorganisms that could be used in industrial processes. Recent advances in the search for hydrolases using metagenomics is reported. A great number of genes and enzymes from microorganisms have been discovered, affording improvement of enzyme cocktails better adapted to sugarcane biomass. Part III reports two key issues in the process of 2G ethanol, pentose fermentation and sugarcane genetics. These are the discoveries of new yeast species capable of producing ethanol more efficiently from xylose and the advances made on the sugarcane genetics, a key issue to design varieties adapted to 2G ethanol production. Part IV approaches sustainability through two chapters, one discussing the sustainability of the sugarcane agricultural and environmental system and another discussing how national and mainly international policies of Brazil regarding 2G ethanol production affected the country’s strategies to establish itself as an international player in renewable energy area.
Handbook Of Cellulosic Ethanol
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Author : Ananda S. Amarasekara
language : en
Publisher: John Wiley & Sons
Release Date : 2013-12-17
Handbook Of Cellulosic Ethanol written by Ananda S. Amarasekara and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-17 with Technology & Engineering categories.
Comprehensive coverage on the growing science and technologyof producing ethanol from the world's abundant cellulosicbiomass The inevitable decline in petroleum reserves and its impact ongasoline prices, combined with climate change concerns, havecontributed to current interest in renewable fuels. Bioethanol isthe most successful renewable transport fuel—with corn andsugarcane ethanol currently in wide use as blend-in fuels in theUnited States, Brazil, and a few other countries. However, thereare a number of major drawbacks in these first-generation biofuels,such as their effect on food prices, net energy balance, and poorgreenhouse gas mitigation. Alternatively, cellulosic ethanol can beproduced from abundant lignocellulosic biomass forms such asagricultural or municipal wastes, forest residues, fast growingtrees, or grasses grown in marginal lands, and should be produciblein substantial amounts to meet growing global energy demand. The Handbook of Cellulosic Ethanol covers all aspects ofthis new and vital alternative fuel source, providing readers withthe background, scientific theory, and recent research progress inproducing cellulosic ethanol via different biochemical routes, aswell as future directions. The seventeen chapters includeinformation on: Advantages of cellulosic ethanol over first-generation ethanolas a transportation fuel Various biomass feedstocks that can be used to make cellulosicethanol Details of the aqueous phase or cellulolysis route,pretreatment, enzyme or acid saccharification, fermentation,simultaneous saccharification fermentation, consolidatedbioprocessing, genetically modified microorganisms, and yeasts Details of the syngas fermentation or thermochemical route,gasifiers, syngas cleaning, microorganisms for syngas fermentation,and chemical catalysts for syngas-to-ethanol conversion Distillation and dehydration to fuel-grade ethanol Techno-economical aspects and the future of cellulosicethanol Readership Chemical engineers, chemists, and technicians working onrenewable energy and fuels in industry, research institutions, anduniversities. The Handbook can also be used by studentsinterested in biofuels and renewable energy issues.
Advanced Biofuels
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Author : Juan Carlos Serrano-Ruiz
language : en
Publisher: CRC Press
Release Date : 2015-05-27
Advanced Biofuels written by Juan Carlos Serrano-Ruiz and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-27 with Science categories.
This title includes a number of Open Access chapters.Sustainability demands that we meet the needs of our present world without compromising the needs of future generations. As a result, sources and methodologies for renewable energy are being urgently investigated. Biomassoffers one of the most readily implemented, low-cost alternatives to fossil
A Biochemical Route For The Production Of Fuels And Chemicals From Cellulosic Biomass
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Author : Amanda Michelle Hildebrand
language : en
Publisher:
Release Date : 2015
A Biochemical Route For The Production Of Fuels And Chemicals From Cellulosic Biomass written by Amanda Michelle Hildebrand and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
We improved the ethanol yield from gluconate to 97.5% of the theoretical maximum by knocking out genes for competing pyruvate dissimilation pathways in E. coli KO11, without deleteriously affecting the yield from glucose. Using a genetic engineering and fermentation optimization approach, we have developed a process for the biochemical conversion of cellulose to biofuel or chemical production. N. crassa was modified to produce cellobiose from cellulose without the exogenous addition of cellulases. It was further modified to improve the yield of cellobiose and cellobionate by knocking out the cellobionate phosphorylase gene. By adding catalytic amounts of redox mediator and laccase to the fermentation, greater than 90% of the hydrolyzed cellulose could be converted to cellobionate. Lastly, E. coli KO11 was engineered to convert gluconate, one of the hydrolysis products of cellobionate, to ethanol at near theoretical yield.
The Next Generation Of Biofuels
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Author : United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Energy, Science, and Technology
language : en
Publisher:
Release Date : 2007
The Next Generation Of Biofuels written by United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Energy, Science, and Technology and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
Thermochemical And Sugar Routes To Ethanol And Other Alcohols From Lignocellulosic Biomass
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Author : Paul-Philipp Post
language : de
Publisher:
Release Date : 2008
Thermochemical And Sugar Routes To Ethanol And Other Alcohols From Lignocellulosic Biomass written by Paul-Philipp Post and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.