Fast Pyrolysis of Technical Lignins in a Circulating Fluidized Bed Reactor PDF Download

Author: Miika Franck
Publisher: Cuvillier
ISBN: 9783736999657
Category :
Languages : en
Pages : 168

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Book Description
In search of an alternative for chemicals and energy from fossil fuels, lignin pyrolysis is experimentally investigated in a circulating fluidized bed. Deviation in pyrolysis behavior of a softwood Kraft lignin and a wheat straw hydrolysis lignin is analyzed by means of char morphology as well as overall yield and composition determination for gas, oil, and char. The influence of catalytically active mineral matter in lignin on the product distribution is investigated. Progressively, the fluidized bed pyrolysis process is modeled semi-empirically considering fluid dynamics, feedstock composition, micro-particle pyrolysis reactions and mass balances. The lignin secondary reaction kinetics from oil-to-gas are obtained from the Kraft lignin experimental data and a pyrolysis plant with integrated char and permanent gas combustion is modeled with a flowsheeting tool.

Author: Chunbao Xu
Publisher: Springer
ISBN: 366254959X
Category : Science
Languages : en
Pages : 164

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Book Description
This book presents an overview of various types of lignin and their unique structures and properties, as well as utilizations of crude or modified technical lignin for high-value bioproducts such as lignin-based PF resins/adhesives, epoxy resins, PF foams, PU foams, rubber reinforcement and carbon fibers and as dispersants in drilling fluids in the oil and gas industry. It subsequently discusses various thermal/chemical modification techniques (pyrolysis, direct liquefaction and de-polymerization) for converting lignin into oils and chemical feedstocks, and the utilization of crude lignin, lignin-derived oils or depolymerized lignins (DLs) of reduced molecular weights and improved reactivity to produce lignin-based PF resins/adhesives, PF/PU foams and epoxy resins. The book will interest and benefit a broad readership (graduate students, academic researchers, industrial researchers and practitioners) in various fields of science and technology (chemical engineering, biotechnology, chemistry, material science, forestry, etc.). Chunbao (Charles) Xu, PhD, is currently a Professor of Chemical Engineering and NSERC/FPInnovations Industrial Research Chair in Forest Biorefinery at the University of Western Ontario, Canada. Fatemeh Ferdosian, PhD, is currently a postdoctoral fellow at the University of Waterloo, Canada.

Author: Lew Christopher
Publisher: Royal Society of Chemistry
ISBN: 184973321X
Category : Business & Economics
Languages : en
Pages : 323

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Book Description
This book documents the recent accomplishments of integrated forest biorefineries and their future in the pulp, paper, and fiber-processing industries.

Author: Tomy J. Gutiérrez
Publisher: Springer Nature
ISBN: 3030434036
Category : Technology & Engineering
Languages : en
Pages : 434

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Book Description
Reactive and functional polymers are manufactured with the aim of improving the performance of unmodified polymers or providing functionality for different applications. These polymers are created mainly through chemical reactions, but there are other important modifications that can be carried out by physical alterations in order to obtain reactive and functional polymers. This volume presents a comprehensive analysis of these reactive and functional polymers. Reactive and Functional Polymers Volume One provides the principles and foundations for the design, development, manufacture and processing of reactive and functional polymers based primarily on biopolymers, polyesters and polyurenthanes. The text provides an in-depth review of updated sources on reactive resins and silicones. In this book, world-renowned researchers have participated, including Dr. Runcang Sun (Associate editor for the journal ‘Carbohydrate Polymers’). With its comprehensive scope and up-to-date coverage of issues and trends in Reactive and Functional Polymers, this is an outstanding book for students, professors, researchers and industrialists working in the field of polymers and plastic materials.

Author: Hassan Al- Haj Ibrahim
Publisher: BoD – Books on Demand
ISBN: 1789840635
Category : Science
Languages : en
Pages : 124

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Book Description
Pyrolysis is an irreversible thermochemical treatment process of materials at elevated temperatures in an inert atmosphere. It is basically a carbonisation process where an organic material is decomposed to produce a solid residue with high (or higher) carbon content and some volatile products. The decomposition reactions are accompanied in general with polymerisation and isomerisation reactions. The end products of pyrolysis can be controlled by optimizing pyrolysis parameters such as temperature and residence time. Pyrolysis is used heavily in the chemical industry to produce many forms of carbon and other chemicals from petroleum, coal, wood, oil shale, biomass or organic waste materials, and it is the basis of several methods for producing fuel from biomass. Pyrolysis also is the process of conversion of buried organic matter into fossil fuels.

Author: Mark Crocker
Publisher: John Wiley & Sons
ISBN: 3527814809
Category : Technology & Engineering
Languages : en
Pages : 723

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Book Description
A comprehensive reference to the use of innovative catalysts and processes to turn biomass into value-added chemicals Chemical Catalysts for Biomass Upgrading offers detailed descriptions of catalysts and catalytic processes employed in the synthesis of chemicals and fuels from the most abundant and important biomass types. The contributors?noted experts on the topic?focus on the application of catalysts to the pyrolysis of whole biomass and to the upgrading of bio-oils. The authors discuss catalytic approaches to the processing of biomass-derived oxygenates, as exemplified by sugars, via reactions such as reforming, hydrogenation, oxidation, and condensation reactions. Additionally, the book provides an overview of catalysts for lignin valorization via oxidative and reductive methods and considers the conversion of fats and oils to fuels and terminal olefins by means of esterification/transesterification, hydrodeoxygenation, and decarboxylation/decarbonylation processes. The authors also provide an overview of conversion processes based on terpenes and chitin, two emerging feedstocks with a rich chemistry, and summarize some of the emerging trends in the field. This important book: -Provides a comprehensive review of innovative catalysts, catalytic processes, and catalyst design -Offers a guide to one of the most promising ways to find useful alternatives for fossil fuel resources -Includes information on the most abundant and important types of biomass feedstocks -Examines fields such as catalytic cracking, pyrolysis, depolymerization, and many more Written for catalytic chemists, process engineers, environmental chemists, bioengineers, organic chemists, and polymer chemists, Chemical Catalysts for Biomass Upgrading presents deep insights on the most important aspects of biomass upgrading and their various types.

Author: Lasse Rosendahl
Publisher: Woodhead Publishing
ISBN: 0081010257
Category : Technology & Engineering
Languages : en
Pages : 372

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Book Description
Direct Thermochemical Liquefaction for Energy Applications presents the state-of-the-art of the value chains associated with these biomass conversion technologies. It covers multiple feedstock availability and feedstock composition impact on process chemistry and product quality and composition. Expert authors from around the world explore co-processing benefits, process parameters, implementation and scaling, upgrading to drop-in liquid biofuels or integration into existing petrochemical refinery infrastructure. Finally, these topics are put into a sustainability perspective by establishing an LCA framework for this type of process. Its focus on implementation based on the most comprehensive knowledge makes this book particularly useful for researchers and graduate students from all sorts of background working in the field of biomass and biofuels. It is also a valuable reference for engineers working to commercialize DTL technologies, engineering specialists designing process equipment, refinery professionals and developers. - Focuses on implementation and scaling of direct thermochemical liquefaction technologies for biomass conversion into biofuels - Covers the state-of-the-art of the technologies, as well as technical and sustainability implementation aspects - Includes new approaches and concepts developed around the world within the different DTL technologies

Author: A. V. Bridgwater
Publisher: Cpl Press
ISBN:
Category : Science
Languages : en
Pages : 208

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Book Description
This edited and updated version of the final report of the IEA Bioenergy Pyrolysis Task, is useful both to newcomers to the subject area and those already involved in research, development, and implementation.

Author: Zhen Fang
Publisher: Springer
ISBN: 9789811019647
Category : Science
Languages : en
Pages : 0

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Book Description
This book provides state-of-the-art reviews, current research on and the prospects of lignin production, biological, thermal and chemical conversion methods, and lignin technoeconomics. Fundamental topics related to lignin chemistry, properties, analysis, characterization, and depolymerization mechanisms, as well as enzymatic, fungal and bacterial degradation methods are covered. The book also examines practical topics related to technologies for lignin and ultra-pure lignin recovery, activated carbon, carbon fiber production and materials, and addresses the biological conversion of lignin with fungi, bacteria or enzymes to produce chemicals, along with chemical, catalytic, thermochemical and solvolysis conversion methods. Lastly, it presents a case study on practical polyurethane foam production using lignin. Lignin has a bright future and will be an essential feedstock for producing renewable chemicals, biofuels and value-added products. Offering comprehensive information on this promising material, the book represents a valuable resource for students, researchers, academicians and industrialists in the field of biochemistry and energy.

Author: Reimund Neugebauer
Publisher: Springer Nature
ISBN: 3662596598
Category : Technology & Engineering
Languages : en
Pages : 404

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Book Description
The global population is expected to rise to 9.8 billion by the year 2050 - with everyone ultimately striving for prosperity. New methods must therefore be found to achieve more efficient production. Research to date shows that the biological inventory that has evolved: its products, processes, principles and tools, can spur modern technology. The development of technological innovations based on biological concepts, with the goal of particularly innovative and sustainable value creation, today is collectively known as "biological transformation". It results in highly functional products with striking properties that can be both manufactured and utilized in a resource-saving way. In terms of taking responsibility of the good of all people, biological transformation is therefore a path that applied research will have to take. The Fraunhofer-Gesellschaft has recognized the developmental technology potential of biological transformation and sees it as its task not only to drive the relevant research forward, but also to promote public awareness of the topic.