Chemical Looping Partial Oxidation

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Chemical Looping Partial Oxidation

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Author : Liang-Shih Fan
language : en
Publisher: Cambridge University Press
Release Date : 2017-10-12

Chemical Looping Partial Oxidation written by Liang-Shih Fan and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-12 with Technology & Engineering categories.

The first comprehensive guide to chemical looping partial oxidation processes, covering key principles, techniques, and applications.

Chemical Looping Partial Oxidation Process For Syngas Production

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Author : Dikai Xu
language : en
Publisher:
Release Date : 2017

Chemical Looping Partial Oxidation Process For Syngas Production written by Dikai Xu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Chemical engineering categories.

The chemical looping partial oxidation process is developed for the efficient conversion of gaseous and solid fuels into syngas via partial oxidation. The chemical looping partial oxidation process converts the fuels into high purity syngas with flexible H2:CO ratio that is suitable for downstream fuel or chemical synthesis. In the chemical looping partial oxidation process, the fuels are partially oxidized in the reducer reactor by the oxygen carrier to generate high purity syngas. The reduced oxygen carrier is regenerated in a fluidized bed combustor via the oxidation reaction with air. Compared to the conventional syngas generation processes, the chemical looping partial oxidation process eliminates the need for additional steam or molecular oxygen from an air separation unit (ASU), resulting in an increased cold gas efficiency and decreased fuel consumption. The chemical looping partial oxidation process features the combination of an iron-titanium composite metal oxide (ITCMO) oxygen carrier and a co-current gas-solid moving bed reducer reactor. The ITCMO oxygen carrier is selected for the chemical looping partial oxidation process due to its desired thermodynamic and kinetic properties. Theoretical analysis aided by a modified Ellingham Diagram illustrates that syngas production is thermodynamically favored in the presence of ITCMO oxygen carrier. The co-current moving bed reducer design provides a desirable gas-solid contacting pattern that minimizes carbon deposition while maximizing the syngas yield. Experimental studies in a fixed bed reactor and a bench scale reactor successfully demonstrate the production of high purity syngas from methane and biomass with the combination of moving bed reducer and ITCMO oxygen carrier. Further scale-up of the chemical looping partial oxidation process is demonstrated in an integrated sub-pilot scale reactor system using non-mechanical gas sealing and solid circulation devices. A dynamic modeling scheme is developed for studying the transient behavior and the control of the chemical looping system. A hierarchical control system based on sliding mode control concept is developed for the chemical looping technologies to simplify process operation.

Non Equilibrium Air Plasmas At Atmospheric Pressure

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Author : K.H. Becker
language : en
Publisher: CRC Press
Release Date : 2004-11-29

Non Equilibrium Air Plasmas At Atmospheric Pressure written by K.H. Becker and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-11-29 with Science categories.

Atmospheric-pressure plasmas continue to attract considerable research interest due to their diverse applications, including high power lasers, opening switches, novel plasma processing applications and sputtering, EM absorbers and reflectors, remediation of gaseous pollutants, excimer lamps, and other noncoherent light sources. Atmospheric-pressure plasmas in air are of particular importance as they can be generated and maintained without vacuum enclosure and without any additional feed gases. Non-Equilibrium Air Plasmas at Atmospheric Pressure reviews recent advances and applications in the generation and maintenance of atmospheric-pressure plasmas. With contributions from leading international researchers, the coverage includes advances in atmospheric-pressure plasma source development, diagnostics and characterization, air plasma chemistry, modeling and computational techniques, and an assessment of the status and prospects of atmospheric-pressure air plasma applications. The extensive application sections make this book attractive for practitioners in many fields where technologies based on atmospheric-pressure air plasmas are emerging.

Chemical Looping Partial Oxidation For The Conversion Of Natural Gas And Biomass To Syngas

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Author : Cody Park
language : en
Publisher:
Release Date : 2022

Chemical Looping Partial Oxidation For The Conversion Of Natural Gas And Biomass To Syngas written by Cody Park and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Chemical engineering categories.

Chemical looping partial oxidation is a process technology with the potential to enable clean, sustainable, and cost-effective valorization of hydrocarbon feedstocks to an array of chemical products. In the process scheme, the partial oxidation reaction is partitioned into separate reduction and oxidation reactions facilitated by an oxygen carrying chemical intermediate, referred to here as an oxygen carrier. By utilizing lattice oxygen donation from a metal oxide oxygen carrier in lieu of molecular oxygen, the hydrocarbon fuel can be efficiently converted to high purity syngas. The benefits and impacts of improving the efficiency of syngas generation are propagated through to downstream fuel and chemical synthesis processes. In this study, the chemical looping partial oxidation process for the thermochemical conversion of methane to syngas is investigated at the sub-pilot scale. Performance of the process and identification of viable operating conditions based on thermodynamic criteria is explored through process simulation. The design, construction, commissioning, and operation of a 15 kWth sub-pilot is detailed. In the unit, methane conversion of 99.64% and syngas purity of 97.13% are obtained with a product H2/CO ratio of 1.96. Co-reforming of methane with steam and CO2 is demonstrated, where net CO2 utilization is exhibited and flexible product H2/CO ratio of between 1.19 to 2.50 with high syngas purity is achieved. Finally, considerations for the design of the reactors during scale-up is discussed. The partial oxidation of biomass feedstocks towards the production of liquid fuels is investigated. Gasification of woody biomass and corncob biomass is studied at the sub-pilot scale where 89% carbon conversion and H2/CO ratio between 0.87 to 1.88 is demonstrated. Steam is shown to assist in the conversion of char in the moving bed reducer and suggestions toward commercial design are given. Adiabatic process simulation of the integration of the biomass to syngas process with the Fischer-Tropsch synthesis is investigated and it is shown that the chemical looping process can lead to 13.9% feedstock reduction and 5.7% increase in the lower heating value thermal efficiency relative to a competing gasification process. Finally, application electrical capacitance volume tomography is developed as a measurement technique to monitor and study the multiphase flow dynamics of the chemical looping process: critical to its scale-up and commercialization. A sensitivity gradient-based velocity profiling method is developed and applied to a gas-solid fluidized bed. The velocity profiles are validated against the cross-correlation technique and expected fluidized bed phenomena and breakdown of the method when tracking large objects is revealed and discussed.

Fluidized Bed Technologies For Near Zero Emission Combustion And Gasification

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Author : Fabrizio Scala
language : en
Publisher: Elsevier
Release Date : 2013-09-30

Fluidized Bed Technologies For Near Zero Emission Combustion And Gasification written by Fabrizio Scala and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-30 with Technology & Engineering categories.

Fluidized bed (FB) combustion and gasification are advanced techniques for fuel flexible, high efficiency and low emission conversion. Fuels are combusted or gasified as a fluidized bed suspended by jets with sorbents that remove harmful emissions such as SOx. CO2 capture can also be incorporated. Fluidized bed technologies for near-zero emission combustion and gasification provides an overview of established FB technologies while also detailing recent developments in the field.Part one, an introductory section, reviews fluidization science and FB technologies and includes chapters on particle characterization and behaviour, properties of stationary and circulating fluidized beds, heat and mass transfer and attrition in FB combustion and gasification systems. Part two expands on this introduction to explore the fundamentals of FB combustion and gasification including the conversion of solid, liquid and gaseous fuels, pollutant emission and reactor design and scale up. Part three highlights recent advances in a variety of FB combustion and gasification technologies before part four moves on to focus on emerging CO2 capture technologies. Finally, part five explores other applications of FB technology including (FB) petroleum refining and chemical production.Fluidized bed technologies for near-zero emission combustion and gasification is a technical resource for power plant operators, industrial engineers working with fluidized bed combustion and gasification systems and researchers, scientists and academics in the field. - Examines the fundamentals of fluidized bed (FB) technologies, including the conversion of solid, liquid and gaseous fuels - Explores recent advances in a variety of technologies such as pressurized FB combustion, and the measurement, monitoring and control of FB combustion and gasification - Discusses emerging technologies and examines applications of FB in other processes

Chemical Looping Systems For Fossil Energy Conversions

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Author : Liang-Shih Fan
language : en
Publisher: John Wiley & Sons
Release Date : 2011-02-14

Chemical Looping Systems For Fossil Energy Conversions written by Liang-Shih Fan 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 2011-02-14 with Technology & Engineering categories.

This book presents the current carbonaceous fuel conversion technologies based on chemical looping concepts in the context of traditional or conventional technologies. The key features of the chemical looping processes, their ability to generate a sequestration-ready CO2 stream, are thoroughly discussed. Chapter 2 is devoted entirely to the performance of particles in chemical looping technology and covers the subjects of solid particle design, synthesis, properties, and reactive characteristics. The looping processes can be applied for combustion and/or gasification of carbon-based material such as coal, natural gas, petroleum coke, and biomass directly or indirectly for steam, syngas, hydrogen, chemicals, electricity, and liquid fuels production. Details of the energy conversion efficiency and the economics of these looping processes for combustion and gasification applications in contrast to those of the conventional processes are given in Chapters 3, 4, and 5.Finally, Chapter 6 presents additional chemical looping applications that are potentially beneficial, including those for H2 storage and onboard H2 production, CO2 capture in combustion flue gas, power generation using fuel cell, steam-methane reforming, tar sand digestion, and chemicals and liquid fuel production. A CD is appended to this book that contains the chemical looping simulation files and the simulation results based on the ASPEN Plus software for such reactors as gasifier, reducer, oxidizer and combustor, and for such processes as conventional gasification processes, Syngas Chemical Looping Process, Calcium Looping Process, and Carbonation-Calcination Reaction (CCR) Process. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Computational Thermodynamics Of Materials

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Author : Zi-Kui Liu
language : en
Publisher: Cambridge University Press
Release Date : 2016-06-30

Computational Thermodynamics Of Materials written by Zi-Kui Liu and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-30 with Science categories.

Integrates fundamental concepts with experimental data and practical applications, including worked examples and end-of-chapter problems.

Coal And Biomass Gasification

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Author : Santanu De
language : en
Publisher: Springer
Release Date : 2017-12-13

Coal And Biomass Gasification written by Santanu De and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-13 with Technology & Engineering categories.

This book addresses the science and technology of the gasification process and the production of electricity, synthetic fuels and other useful chemicals. Pursuing a holistic approach, it covers the fundamentals of gasification and its various applications. In addition to discussing recent advances and outlining future directions, it covers advanced topics such as underground coal gasification and chemical looping combustion, and describes the state-of-the-art experimental techniques, modeling and numerical simulations, environmentally friendly approaches, and technological challenges involved. Written in an easy-to-understand format with a comprehensive glossary and bibliography, the book offers an ideal reference guide to coal and biomass gasification for beginners, engineers and researchers involved in designing or operating gasification plants.

Periodic Operation Of Chemical Reactors

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Author : P. L. Silveston
language : en
Publisher: Butterworth-Heinemann
Release Date : 2012-12-04

Periodic Operation Of Chemical Reactors written by P. L. Silveston and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-04 with Science categories.

This comprehensive review, prepared by 24 experts, many of whom are pioneers of the subject, brings together in one place over 40 years of research in this unique publication. This book will assist R & D specialists, research chemists, chemical engineers or process managers harnessing periodic operations to improve their process plant performance. Periodic Operation of Reactors covers process fundamentals, research equipment and methods and provides "the state of the art" for the periodic operation of many industrially important catalytic reactions. Emphasis is on experimental results, modeling and simulation. Combined reaction and separation are dealt with, including simulated moving bed chromatographic, pressure and temperature swing and circulating bed reactors. Thus, Periodic Operation of Reactors offers readers a single comprehensive source for the broad and diverse new subject. This exciting new publication is a "must have" for any professional working in chemical process research and development. - A comprehensive reference on the fundamentals, development and applications of periodic operation - Contributors and editors include the pioneers of the subject as well as the leading researchers in the field - Covers both fundamentals and the state of the art for each operation scenario, and brings all types of periodic operation together in a single volume - Discussion is focused on experimental results rather than theoretical ones; provides a rich source of experimental data, plus process models - Accompanying website with modelling data

Advances In Hydrogen Production Storage And Distribution

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Author : Adolfo Iulianelli
language : en
Publisher: Elsevier
Release Date : 2014-07-16

Advances In Hydrogen Production Storage And Distribution written by Adolfo Iulianelli and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-16 with Technology & Engineering categories.

Advances in Hydrogen Production, Storage and Distribution reviews recent developments in this key component of the emerging "hydrogen economy," an energy infrastructure based on hydrogen. Since hydrogen can be produced without using fossil fuels, a move to such an economy has the potential to reduce greenhouse gas emissions and improve energy security. However, such a move also requires the advanced production, storage and usage techniques discussed in this book. Part one introduces the fundamentals of hydrogen production, storage, and distribution, including an overview of the development of the necessary infrastructure, an analysis of the potential environmental benefits, and a review of some important hydrogen production technologies in conventional, bio-based, and nuclear power plants. Part two focuses on hydrogen production from renewable resources, and includes chapters outlining the production of hydrogen through water electrolysis, photocatalysis, and bioengineered algae. Finally, part three covers hydrogen production using inorganic membrane reactors, the storage of hydrogen, fuel cell technology, and the potential of hydrogen as a fuel for transportation. Advances in Hydrogen Production, Storage and Distribution provides a detailed overview of the components and challenges of a hydrogen economy. This book is an invaluable resource for research and development professionals in the energy industry, as well as academics with an interest in this important subject. - Reviews developments and research in this dynamic area - Discusses the challenges of creating an infrastructure to store and distribute hydrogen - Reviews the production of hydrogen using electrolysis and photo-catalytic methods