Upgrading Of Pyrolysis Bio Oil To Renewable Fuels By Hydrodeoxygenation

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Upgrading of Pyrolysis Bio-oil to Renewable Fuels by Hydrodeoxygenation

Author : Yinglei Han
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (913 download)

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Book Synopsis Upgrading of Pyrolysis Bio-oil to Renewable Fuels by Hydrodeoxygenation by : Yinglei Han

Download or read book Upgrading of Pyrolysis Bio-oil to Renewable Fuels by Hydrodeoxygenation written by Yinglei Han and published by . This book was released on 2014 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fast pyrolysis is a process can convert woody biomass to a crude bio-oil (pyrolysis oil). However, some of these compounds contribute to bio-oil shelf life instability and difficulty in refining. Catalytic hydrodeoxygenation (HDO) of the bio-oil can upgrade the bio-oil into transportation fuels. Therefore, nickel (Ni) and ruthenium (Ru) catalysts supporting on a novel nanomaterial, silica nanospring (NS) showed the best performance for HDO of phenol. In terms of bio-oil hydrotreatment, the bio-oil was fractionated by phase separation by addition of water to obtain a water-insoluble (WIS) and water-soluble (WS) fractions from the bio-oil. The WS of bio-oil can be upgraded into cycloalkanes of 30% wt. and alcohols of 18% wt. over Ni(65%)/SiO2-Al2 O3 catalyst. The WIS of bio-oil had been effectively cracked in methanol over Ni(65%)/SiO2-Al2 O3 catalyst. A further step of HDO on the cracked oil had successfully deoxygenated the phenolics into cycloalkanes.

Chemical Catalysts for Biomass Upgrading

Author : Mark Crocker
Publisher : John Wiley & Sons
ISBN 13 : 3527344667
Total Pages : 634 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Chemical Catalysts for Biomass Upgrading by : Mark Crocker

Download or read book Chemical Catalysts for Biomass Upgrading written by Mark Crocker and published by John Wiley & Sons. This book was released on 2020-03-09 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Novel Pretreatment Methods to Improve the Properties of Pyrolysis Oil Followed by Production of Biofuels

Author : Sathish Kumar Tanneru
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (923 download)

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Book Synopsis Novel Pretreatment Methods to Improve the Properties of Pyrolysis Oil Followed by Production of Biofuels by : Sathish Kumar Tanneru

Download or read book Novel Pretreatment Methods to Improve the Properties of Pyrolysis Oil Followed by Production of Biofuels written by Sathish Kumar Tanneru and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Renewable Fuels Produced from Biomass Pyrolysis Vapors: Catalysis and Reaction Engineering

Author : David Pierce Gamliel
Publisher :
ISBN 13 :
Total Pages : 231 pages
Book Rating : 4.:/5 (119 download)

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Book Synopsis Renewable Fuels Produced from Biomass Pyrolysis Vapors: Catalysis and Reaction Engineering by : David Pierce Gamliel

Download or read book Renewable Fuels Produced from Biomass Pyrolysis Vapors: Catalysis and Reaction Engineering written by David Pierce Gamliel and published by . This book was released on 2018 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present, lignocellulosic biomass is the only renewable and available resource capable of supplanting fossil fuel resources. Fast pyrolysis is the conversion of biomass at elevated temperature, high heating rate and under inert atmosphere to produce bio-oil. This bio-oil is a blend of oxygenated hydrocarbons, which must be upgraded prior to use as a transportation fuel. The focus of this thesis is the investigation of bio-oil upgrading reaction pathways and catalysts for the production of biofuels. There are two primary pathways for pyrolysis vapor upgrading: catalytic cracking and hydrodeoxygenation (HDO). During catalytic cracking, pyrolysis vapors react over the acid sites of ZSM-5 zeolite, which crack C-C bonds to release oxygen in the form of COx. Biofuel compound yield is greater when cracking occurs in-situ the pyrolysis reactor, but selectivity is greater when cracking occurs ex-situ. Because of its microporous structure, the ZSM-5 catalyst may exclude some of the bulky oxygenates formed during pyrolysis. This accessibility limitation can be alleviated through the introduction of mesoporosity in the ZSM-5 zeolite. Zeolite mesoporosity is beneficial for increasing aromatic yield and reducing coke on catalyst. While catalytic cracking is effective for removing oxygen from the pyrolysis vapors, this oxygen is removed as COx, reducing carbon return in the bio-oil. Moreover, the upgraded bio-oil is aromatic in nature, and aromatics in gasoline are limited. Incorporation of hydrogen into the pyrolysis reactor in the presence of Ni-ZSM-5 catalyst reduces char formation and substantially increases CH4 yield, but the bio-oil does not contain many alkanes. The high reaction temperature demanded by biomass volatilization thermodynamically limits hydrogenation reactions. Catalytic hydropyrolysis followed by secondary hydroprocessing produces a biofuel with heating value and aromaticity similar to gasoline. Liquid phase HDO is another pathway for removal of bio-oil oxygen. Catalytic HDO of anisole, 4-ethylphenol and benzofuran was performed with Ni, Ru and Pd supported on USY zeolite. Kinetic rate measurements show Pd is more effective than Ni and Ru in terms of reaction rate, deoxygenation activity and C-C coupling. Finally, controlled mesoporosity of the USY support is beneficial for enhancing access of oxygenates to the impregnated metal species for efficient hydrogenation.

Thermochemical Processing of Biomass

Author : Robert C. Brown
Publisher : John Wiley & Sons
ISBN 13 : 1119417570
Total Pages : 426 pages
Book Rating : 4.1/5 (194 download)

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Book Synopsis Thermochemical Processing of Biomass by : Robert C. Brown

Download or read book Thermochemical Processing of Biomass written by Robert C. Brown and published by John Wiley & Sons. This book was released on 2019-05-28 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive examination of the large number of possible pathways for converting biomass into fuels and power through thermochemical processes Bringing together a widely scattered body of information into a single volume, this book provides complete coverage of the many ways that thermochemical processes are used to transform biomass into fuels, chemicals and power. Fully revised and updated, this new edition highlights the substantial progress and recent developments that have been made in this rapidly growing field since publication of the first edition and incorporates up-to-date information in each chapter. Thermochemical Processing of Biomass: Conversion into Fuels, Chemicals and Power, 2nd Edition incorporates two new chapters covering: condensed phased reactions of thermal deconstruction of biomass and life cycle analysis of thermochemical processing systems. It offers a new introductory chapter that provides a more comprehensive overview of thermochemical technologies. The book also features fresh perspectives from new authors covering such evolving areas as solvent liquefaction and hybrid processing. Other chapters cover combustion, gasification, fast pyrolysis, upgrading of syngas and bio-oil to liquid transportation fuels, and the economics of thermochemically producing fuels and power, and more. Features contributions by a distinguished group of European and American researchers offering a broad and unified description of thermochemical processing options for biomass Combines an overview of the current status of thermochemical biomass conversion as well as engineering aspects to appeal to the broadest audience Edited by one of Biofuels Digest’s "Top 100 People" in bioenergy for six consecutive years Thermochemical Processing of Biomass: Conversion into Fuels, Chemicals and Power, 2nd Edition will appeal to all academic researchers, process chemists, and engineers working in the field of biomass conversion to fuels and chemicals. It is also an excellent book for graduate and advanced undergraduate students studying biomass, biofuels, renewable resources, and energy and power generation.

Catalytic and Noncatalytic Upgrading of Oils

Author : Ajay K. Dalai
Publisher :
ISBN 13 : 9780841298422
Total Pages : 372 pages
Book Rating : 4.2/5 (984 download)

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Book Synopsis Catalytic and Noncatalytic Upgrading of Oils by : Ajay K. Dalai

Download or read book Catalytic and Noncatalytic Upgrading of Oils written by Ajay K. Dalai and published by . This book was released on 2022-02-04 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is about Catalytic and Noncatalytic Upgrading of Oils"--

Liquid Biofuels

Author : Krushna Prasad Shadangi
Publisher : John Wiley & Sons
ISBN 13 : 1119791987
Total Pages : 754 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis Liquid Biofuels by : Krushna Prasad Shadangi

Download or read book Liquid Biofuels written by Krushna Prasad Shadangi and published by John Wiley & Sons. This book was released on 2021-06-29 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compiled by a well-known expert in the field, Liquid Biofuels provides a profound knowledge to researchers about biofuel technologies, selection of raw materials, conversion of various biomass to biofuel pathways, selection of suitable methods of conversion, design of equipment, selection of operating parameters, determination of chemical kinetics, reaction mechanism, preparation of bio-catalyst: its application in bio-fuel industry and characterization techniques, use of nanotechnology in the production of biofuels from the root level to its application and many other exclusive topics for conducting research in this area. Written with the objective of offering both theoretical concepts and practical applications of those concepts, Liquid Biofuels can be both a first-time learning experience for the student facing these issues in a classroom and a valuable reference work for the veteran engineer or scientist. The description of the detailed characterization methodologies along with the precautions required during analysis are extremely important, as are the detailed description about the ultrasound assisted biodiesel production techniques, aviation biofuels and its characterization techniques, advance in algal biofuel techniques, pre-treatment of biomass for biofuel production, preparation and characterization of bio-catalyst, and various methods of optimization. The book offers a comparative study between the various liquid biofuels obtained from different methods of production and its engine performance and emission analysis so that one can get the utmost idea to find the better biofuel as an alternative fuel. Since the book covers almost all the field of liquid biofuel production techniques, it will provide advanced knowledge to the researcher for practical applications across the energy sector. A valuable reference for engineers, scientists, chemists, and students, this volume is applicable to many different fields, across many different industries, at all levels. It is a must-have for any library.

Catalysis for Renewables

Author : Gabriele Centi
Publisher : John Wiley & Sons
ISBN 13 : 3527621121
Total Pages : 448 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Catalysis for Renewables by : Gabriele Centi

Download or read book Catalysis for Renewables written by Gabriele Centi and published by John Wiley & Sons. This book was released on 2008-01-08 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its focus on catalysis and addressing two very hot and timely topics with significant implications for our future lives, this will be a white book in the field. The authority behind this practical work is the IDECAT Network of Excellence, and the authors here outline how the use of catalysis will promote the more extensive use of renewable feedstocks in chemical and energy production. They present the latest applications, their applicability and results, making this a ready reference for researchers and engineers working in catalysis, chemistry, and industrial processes wishing to analyze options, outlooks and opportunities in the field.

Fast Pyrolysis of Biomass

Author : A. V. Bridgwater
Publisher : Cpl Press
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Fast Pyrolysis of Biomass by : A. V. Bridgwater

Download or read book Fast Pyrolysis of Biomass written by A. V. Bridgwater and published by Cpl Press. This book was released on 1999 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Catalytic Upgrading of Biomass Through the Hydrodeoxygenation (HDO) of Bio-oil Derived Model Compounds

Author : Manish Shetty
Publisher :
ISBN 13 :
Total Pages : 285 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Catalytic Upgrading of Biomass Through the Hydrodeoxygenation (HDO) of Bio-oil Derived Model Compounds by : Manish Shetty

Download or read book Catalytic Upgrading of Biomass Through the Hydrodeoxygenation (HDO) of Bio-oil Derived Model Compounds written by Manish Shetty and published by . This book was released on 2017 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lignocellulosic biomass is an attractive renewable source for fuels and chemicals. Of the many conversion alternatives, catalytic fast pyrolysis has emerged as an attractive technology to convert biomass into fuel additives and value-added chemicals. Current pyrolysis oils or bio-oils are incompatible with refinery streams due to their high acid, water, and water content. The key roadblock in its commercial exploitation is development of catalytic platforms for selective deoxygenation along with minimum hydrogen consumption and carbon loss. Current catalytic solutions including zeolites, and conventional hydrotreating catalysts employ high hydrogen pressures, leading to aromatic ring hydrogenation, and hydrogen consumption. This thesis focusses on developing fundamental catalytic understanding on cheaper and earth-abundant reducible transition metal oxide catalysts for selective hydrodeoxygenation (HDO) of bio-oil derived model compounds using reactivity, computation and characterization studies. The first section focuses on developing structure-reactivity relationships on bulk and supported MoO3 catalysts for the HDO of lignin-derived model compounds. Characterization reveals that MoO3 undergoes reduction to catalytically inactive MoO2 at a temperature of 673 K, and stabilization of partially reduced MoO3 surface through its partial carburization to oxycarbide phase (MoOxCyHz) at temperatures

Biorefinery of Alternative Resources: Targeting Green Fuels and Platform Chemicals

Author : Sonil Nanda
Publisher : Springer Nature
ISBN 13 : 9811518041
Total Pages : 503 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Biorefinery of Alternative Resources: Targeting Green Fuels and Platform Chemicals by : Sonil Nanda

Download or read book Biorefinery of Alternative Resources: Targeting Green Fuels and Platform Chemicals written by Sonil Nanda and published by Springer Nature. This book was released on 2020-03-31 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes recent advances in the processing of waste biomass resources to produce biofuels and biochemicals. Worldwide interest in clean energy sources, environmental protection, and mitigating global warming is rapidly gaining momentum and spurring on the search for alternative energy sources, especially for the transportation and industrial sectors. This book reviews the opportunities presented by low-cost organic waste materials, discussing their suitability for alternative fuel and fine chemical production, physicochemical characterization, conversion technologies, feedstock and fuel chemistry, refining technologies, fuel upgrading, residue management, and the circular economy. In addition, it explores applied aspects of biomass conversion by highlighting several significant thermochemical, hydrothermal and biological technologies. In summary, the book offers comprehensive and representative descriptions of key fuel processing technologies, energy conversion and management, waste valorization, eco-friendly waste remediation, biomass supply chain, lifecycle assessment, techno-economic analysis and the circular bioeconomy.

Pyrolysis Oils

Author : Tushar P. Vispute
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (748 download)

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Book Synopsis Pyrolysis Oils by : Tushar P. Vispute

Download or read book Pyrolysis Oils written by Tushar P. Vispute and published by . This book was released on 2011 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing need to develop the processes to produce renewable fuels and chemicals due to the economical, political, and environmental concerns associated with the fossil fuels. One of the most promising methods for a small scale conversion of biomass into liquid fuels is fast pyrolysis. The liquid product obtained from the fast pyrolysis of biomass is called pyrolysis oil or bio-oil. It is a complex mixture of more than 300 compounds resulting from the depolymerization of biomass building blocks, cellulose; hemi-cellulose; and lignin. Bio-oils have low heating value, high moisture content, are acidic, contain solid char particles, are incompatible with existing petroleum based fuels, are thermally unstable, and degrade with time. They cannot be used directly in a diesel or a gasoline internal combustion engine. One of the challenges with the bio-oil is that it is unstable and can phase separate when stored for long. Its viscosity and molecular weight increases with time. It is important to identify the factors responsible for the bio-oil instability and to stabilize the bio-oil. The stability analysis of the bio-oil showed that the high molecular weight lignin oligomers in the bio-oil are mainly responsible for the instability of bio-oil. The viscosity increase in the bio-oil was due to two reasons: increase in the average molecular weight and increase in the concentration of high molecular weight oligomers. Char can be removed from the bio-oil by microfiltration using ceramic membranes with pore sizes less than 1 [mu meter]. Removal of char does not affect the bio-oil stability but is desired as char can cause difficulty in further processing of the bio-oil. Nanofiltration and low temperature hydrogenation were found to be the promising techniques to stabilize the bio-oil. Bio-oil must be catalytically converted into fuels and chemicals if it is to be used as a feedstock to make renewable fuels and chemicals. The water soluble fraction of bio-oil (WSBO) was found to contain C2 to C6 oxygenated hydrocarbons with various functionalities. In this study we showed that both hydrogen and alkanes can be produced with high yields from WSBO using aqueous phase processing. Hydrogen was produced by aqueous phase reforming over Pt/Al2O3 catalyst. Alkanes were produced by hydrodeoxygenation over Pt/SiO2-Al2O3. Both of these processes were preceded by a low temperature hydrogenation step over Ru/C catalyst. This step was critical to achieve high yields of hydrogen and alkanes. WSBO was also converted to gasoline-range alcohols and C2 to C6 diols with up to 46% carbon yield by a two-stage hydrogenation process over Ru/C catalyst (125 °C) followed by over Pt/C (250 °C) catalyst. Temperature and pressure can be used to tune the product selectivity. The hydroprocessing of bio-oil was followed by zeolite upgrading to produce C6 to C8 aromatic hydrocarbons and C2 to C4 olefins. Up to 70% carbon yield to aromatics and olefins was achieved from the hydrogenated aqueous fraction of bio-oil. The hydroprocessing steps prior to the zeolite upgrading increases the thermal stability of bio-oil as well as the intrinsic hydrogen content. Increasing the thermal stability of bio-oil results in reduced coke yields in zeolite upgrading, whereas, increasing the intrinsic hydrogen content results in more oxygen being removed from bio-oil as H2O than CO and CO2. This results in higher carbon yields to aromatic hydrocarbon and olefins. Integrating hydroprocessing with zeolite upgrading produces a narrow product spectrum and reduces the hydrogen requirement of the process as compared to processes solely based on hydrotreating. Increasing the yield of petrochemical products from biomass therefore requires hydrogen, thus cost of hydrogen dictates the maximum economic potential of the process.

Upgrading of Intermediate Bio-Oil Produced by Catalytic Pyrolysis

Author :
Publisher :
ISBN 13 :
Total Pages : 99 pages
Book Rating : 4.:/5 (986 download)

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Book Synopsis Upgrading of Intermediate Bio-Oil Produced by Catalytic Pyrolysis by :

Download or read book Upgrading of Intermediate Bio-Oil Produced by Catalytic Pyrolysis written by and published by . This book was released on 2015 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project were to (1) develop a process to upgrade catalytic pyrolysis bio-oil, (2) investigate new upgrading catalysts suited for upgrading catalytic pyrolysis bio-oil, (3) demonstrate upgrading system operation for more than 1,000 hours using a single catalyst charge, and (4) produce a final upgraded product that can be blended to 30 percent by weight with petroleum fuels or that is compatible with existing petroleum refining operations. This project has, to the best of our knowledge, for the first time enabled a commercially viable bio-oil hydrotreatment process to produce renewable blend stock for transportation fuels.

Upgrading Bio-oil and Pretreated Bio-oil by Hydroprocessing in a Continuous Packed-bed Reactor

Author : Divya Reddy Parapati
Publisher :
ISBN 13 :
Total Pages : 215 pages
Book Rating : 4.:/5 (892 download)

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Book Synopsis Upgrading Bio-oil and Pretreated Bio-oil by Hydroprocessing in a Continuous Packed-bed Reactor by : Divya Reddy Parapati

Download or read book Upgrading Bio-oil and Pretreated Bio-oil by Hydroprocessing in a Continuous Packed-bed Reactor written by Divya Reddy Parapati and published by . This book was released on 2014 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bio-oil obtained by the fast pyrolysis of biomass has the potential to serve as source of alternative liquid fuel for both power generation and transportation fuel. Bio-oils are comprised of oxygenated compounds, due to the presence of a high percentage of these oxygenated groups bio-oil possesses negative properties such as low heating value, low volatility, thermal instability, corrosiveness, immiscibility with fossil fuels and a tendency to polymerize over time. Bio-oils have been converted to both boiler and transportation fuels in laboratory and demonstration projects. However, the available technologies have not proven commercially viable. Therefore, the main objective of this study is to develop additional, potentially commercializable, technologies to upgrade bio-oils and pretreated bio-oil by hydroprocessing pathways. Previous hydrodeoxygenation studies over nearly three decades have provided considerable information about methods to upgrade bio-oil by this technology. However, rapid catalyst deactivation and low yields continue to be problematic and further research is required to refine current hydrodeoxygenation methods and catalysts. In our study we are applying pretreatment to the bio-oil at ambient temperature and pressure conditions to hydroprocess pretreated bio-oil in a single-stage. An initial pretreatment was performed to convert aldehydes present in the bio-oil into carboxylic acids followed by a single-stage hydroprocessing, that was performed to produce hydrocarbons. Where appropriate, successful products produced from the hydroprocessing treatments were analyzed for acid value, oxygen content, heating value, elemental analysis, FTIR and GC-MS. Statistical analysis was performed by analysis of variance (ANOVA).

Pyrolysis Vapor and Bio-Oil Preconditioning via Ex Situ Hydrodeoxygenation and Alkylation Using a Heteropolyacid Catalyst

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Pyrolysis Vapor and Bio-Oil Preconditioning via Ex Situ Hydrodeoxygenation and Alkylation Using a Heteropolyacid Catalyst by :

Download or read book Pyrolysis Vapor and Bio-Oil Preconditioning via Ex Situ Hydrodeoxygenation and Alkylation Using a Heteropolyacid Catalyst written by and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ex situ catalytic preconditioning of biomass pyrolysis vapors (partial deoxygenation) has the potential for both reducing the oxygen content and beneficially influencing the oxygen speciation of condense bio-oils for enhancement of downstream condensed phase upgrading processes. Here, condensed phase upgrading processes may refer to both coprocessing and hydroprocessing with vacuum gas-oil (VGO). Reduction of oxygen content to produce bio-oils with greater hydrophobicity can enhance VGO-solubility while tailoring of oxygen speciation by removal of reactive carbonyls (e.g., acetic acid) can lessen catalytic deactivation via coking reactions. 1,2 Furthermore, enhanced VGO-solubility and reduced coking leads to greater biogenic carbon incorporation in end-products from condensed phase upgrading processes. By leveraging the hydrodeoxygenation and alkylation activity of a titania-supported molybdenum-heteropolyacid (Mo-HPA/TiO2) catalyst, pyrolysis vapors and resulting condensed bio-oils were effectively preconditioned for downstream upgrading. 3 Data regarding the use of Mo-HPA/TiO2 for pyrolysis vapor preconditioning will be presented on, including method of employment, catalyst characterization, and impacts on bio-oil in relation to downstream condensed phase upgrading processes. Our approach is to: Compare Mo-HPA/TiO2 product distribution to HZSM-5; Investigate Mo-HPA/TiO2 regeneration and characterize changes in acid site character; Assess product differences in terms of enhanced VGO-solubility.

Biomass, Biofuels, Biochemicals

Author : Thallada Bhaskar
Publisher : Elsevier
ISBN 13 : 0128202947
Total Pages : 360 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Biomass, Biofuels, Biochemicals by : Thallada Bhaskar

Download or read book Biomass, Biofuels, Biochemicals written by Thallada Bhaskar and published by Elsevier. This book was released on 2021-02-09 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass, Biofuels, Biochemicals: Lignin Biorefinery discusses the scientific and technical information relating to the structure and physico-chemical characteristics of lignin. The book covers the different processes (biological, thermal and catalytic routes) available for lignin conversion into specialty chemicals or fuels, activity relationships, and how optimized process parameters help establish the feasible size of the commercial plant in a centralized or decentralized model. In addition, the advantages and limitations of different technologies are discussed, considering local energy, chemicals, biopolymers, drug intermediates, activated carbons, and much more. Includes information on the most advanced and innovative processes for lignin conversion Covers information on biochemical and thermo-chemical processes for lignin valorization Provides information on lignin chemistry and its conversion into high value chemicals and fuels Presents a book designed as a text book, not merely a collection of research articles

Biomass Combustion Science, Technology and Engineering

Author : Lasse Rosendahl
Publisher : Elsevier
ISBN 13 : 0857097431
Total Pages : 321 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Biomass Combustion Science, Technology and Engineering by : Lasse Rosendahl

Download or read book Biomass Combustion Science, Technology and Engineering written by Lasse Rosendahl and published by Elsevier. This book was released on 2013-04-04 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The utilisation of biomass is increasingly important for low- or zero-carbon power generation. Developments in conventional power plant fuel flexibility allow for both direct biomass combustion and co-firing with fossil fuels, while the integration of advanced technologies facilitates conversion of a wide range of biomass feedstocks into more readily combustible fuel. Biomass combustion science, technology and engineering reviews the science and technology of biomass combustion, conversion and utilisation.Part one provides an introduction to biomass supply chains and feedstocks, and outlines the principles of biomass combustion for power generation. Chapters also describe the categorisation and preparation of biomass feedstocks for combustion and gasification. Part two goes on to explore biomass combustion and co-firing, including direct combustion of biomass, biomass co-firing and gasification, fast pyrolysis of biomass for the production of liquids and intermediate pyrolysis technologies. Largescale biomass combustion and biorefineries are then the focus of part three. Following an overview of large-scale biomass combustion plants, key engineering issues and plant operation are discussed, before the book concludes with a chapter looking at the role of biorefineries in increasing the value of the end-products of biomass conversion.With its distinguished editor and international team of expert contributors, Biomass combustion science, technology and engineering provides a clear overview of this important area for all power plant operators, industrial engineers, biomass researchers, process chemists and academics working in this field. - Reviews the science and technology of biomass combustion, conversion and utilisation - Provides an introduction to biomass supply chains and feedstocks and outlines the principles of biomass combustion for power generation - Describes the categorisation and preparation of biomass feedstocks for combustion and gasification