Routes to Cellulosic Ethanol

Routes to Cellulosic Ethanol

Author: Marcos Silveira Buckeridge

Publisher: Springer Science & Business Media

Published: 2011-01-07

Total Pages: 272

ISBN-13: 0387927409

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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

Handbook of Cellulosic Ethanol

Author: Ananda S. Amarasekara

Publisher: John Wiley & Sons

Published: 2013-12-17

Total Pages: 608

ISBN-13: 1118878426

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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.


Lignocellulose Conversion

Lignocellulose Conversion

Author: Vincenza Faraco

Publisher: Springer Science & Business Media

Published: 2013-06-12

Total Pages: 207

ISBN-13: 3642378617

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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.


Handbook of Biofuels Production

Handbook of Biofuels Production

Author: Rafael Luque

Publisher: Woodhead Publishing

Published: 2016-05-19

Total Pages: 772

ISBN-13: 0081004567

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Handbook of Biofuels Production, Second Edition, discusses advanced chemical, biochemical, and thermochemical biofuels production routes that are fast being developed to address the global increase in energy usage. Research and development in this field is aimed at improving the quality and environmental impact of biofuels production, as well as the overall efficiency and output of biofuels production plants. The book provides a comprehensive and systematic reference on the range of biomass conversion processes and technology. Key changes for this second edition include increased coverage of emerging feedstocks, including microalgae, more emphasis on by-product valorization for biofuels' production, additional chapters on emerging biofuel production methods, and discussion of the emissions associated with biofuel use in engines. The editorial team is strengthened by the addition of two extra members, and a number of new contributors have been invited to work with authors from the first edition to revise existing chapters, thus offering fresh perspectives. - Provides systematic and detailed coverage of the processes and technologies being used for biofuel production - Discusses advanced chemical, biochemical, and thermochemical biofuels production routes that are fast being developed to address the global increase in energy usage - Reviews the production of both first and second generation biofuels - Addresses integrated biofuel production in biorefineries and the use of waste materials as feedstocks


Combustion Synthesis: Novel Routes to Novel Materials

Combustion Synthesis: Novel Routes to Novel Materials

Author: Maximilian Lackner

Publisher: Bentham Science Publishers

Published: 2010-07-08

Total Pages: 260

ISBN-13: 1608051552

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Combustion Synthesis covers a wide range of technologies to produce advanced materials, ranging from oxides, nitrides and intermetallics to various nanostructured compounds, such as nanopowders and carbon nano tubes (CNT). This Ebook, with contributions from leading experts in industry and academia, provides an up-to-date overview about combustion synthesis. a comparison to conventional methods as well as a description of analytical techniques is given, alongside the description of special techniques, such as microwave or electrical field assistance. Aspects such as historic development and scale-up make this book a concise, yet comprehensive review about combustion synthesis. This book should be useful for scientists, engineers and practitioners working in materials science and related fields.


Advanced Biofuel Technologies

Advanced Biofuel Technologies

Author: Deepak K. Tuli

Publisher: Elsevier

Published: 2021-12-08

Total Pages: 596

ISBN-13: 0323884288

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Advanced Biofuel Technologies: Present Status, Challenges and Future Prospects deals with important issues such as feed stock availability, technology options, greenhouse gas reduction as seen by life cycle assessment studies, regulations and policies. This book provides readers complete information on the current state of developments in both thermochemical and biochemical processes for advanced biofuels production for the purpose of transportation, domestic and industrial applications. Chapters explore technological innovations in advanced biofuels produced from agricultural residues, algae, lipids and waste industrial gases to produce road transport fuels, biojet fuel and biogas. - Covers technologies and processes of different types of biofuel production - Outlines a selection of different types of renewable feedstocks for biofuel production - Summarizes adequate and balanced coverage of thermochemical and biochemical methods of biomass conversion into biofuel - Includes regulations, policies and lifecycle and techno-economic assessments


Plant-Based Genetic Tools for Biofuels Production

Plant-Based Genetic Tools for Biofuels Production

Author: Daniela Defavari do Nascimento

Publisher: Bentham Science Publishers

Published: 2017-06-12

Total Pages: 216

ISBN-13: 1681084619

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Biofuels are currently used as a viable alternative energy source in several countries. Plant-Based Genetic Tools for Biofuels Production explains biotechnological techniques and concepts that are applied to increase biofuel yield from plants and algae. Chapters of the book cover a variety of topics: the basic research techniques (cell suspension, embryogenesis, protoplast fusion), plant genetics (plant DNA mutations, new plant breeding techniques, viral genetic vectors for heterologous gene expression, sub cellular proteomes), genomic resources and bioinformatics tools, plant species with bioenergy and biofuel potential, factors influencing biomass yield, advances in cultivation technologies, fermentation of different substrates for ethanol production, and microalgae biomass technologies. Readers will gain a thorough understanding of modern biofuel production. Plant-Based Genetic Tools for Biofuels Production is a suitable reference for students in biotechnology and bioinformatics programs as well as researchers interested in information about the basics of biofuel production.


Compendium of Bioenergy Plants

Compendium of Bioenergy Plants

Author: Hong Luo

Publisher: CRC Press

Published: 2014-03-14

Total Pages: 463

ISBN-13: 1466596376

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This book contains the most comprehensive reviews on the latest development of switchgrass research including the agronomy of the plant, the use of endophytes and mycorrhizae for biomass production, genetics and breeding of bioenergy related traits, molecular genetics and molecular breeding, genomics, transgenics, processing, bioconversion, biosyst