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Zinc Oxide Based Sorbents And Processes For Preparing And Using Same
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Book Synopsis Zinc-oxide-based Sorbents and Processes for Preparing and Using Same by :
Download or read book Zinc-oxide-based Sorbents and Processes for Preparing and Using Same written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide-based sorbents, and processes for preparing and using them are provided. The sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents comprise an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl.sub. 2O.sub. 4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 500 Angstroms. Preferably the sorbents are prepared by converting a precursor mixture, comprising a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component.
Book Synopsis Process for Preparing Zinc Oxide-based Sorbents by :
Download or read book Process for Preparing Zinc Oxide-based Sorbents written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The disclosure relates to zinc oxide-based sorbents, and processes for preparing and using them. The sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents comprise an active zinc component, optionally in combination with one or more promoter components and/or one or more substantially inert components. The active zinc component is a two phase material, consisting essentially of a zinc oxide (ZnO) phase and a zinc aluminate (ZnAl.sub. 2O.sub. 4) phase. Each of the two phases is characterized by a relatively small crystallite size of typically less than about 500 Angstroms. Preferably the sorbents are prepared by converting a precursor mixture, comprising a precipitated zinc oxide precursor and a precipitated aluminum oxide precursor, to the two-phase, active zinc oxide containing component.
Book Synopsis Fuel Cells: Technologies for Fuel Processing by : Dushyant Shekhawat
Download or read book Fuel Cells: Technologies for Fuel Processing written by Dushyant Shekhawat and published by Elsevier. This book was released on 2011-03-18 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel Cells: Technologies for Fuel Processing provides an overview of the most important aspects of fuel reforming to the generally interested reader, researcher, technologist, teacher, student, or engineer. The topics covered include all aspects of fuel reforming: fundamental chemistry, different modes of reforming, catalysts, catalyst deactivation, fuel desulfurization, reaction engineering, novel reforming concepts, thermodynamics, heat and mass transfer issues, system design, and recent research and development. While no attempt is made to describe the fuel cell itself, there is sufficient description of the fuel cell to show how it affects the fuel reformer. By focusing on the fundamentals, this book aims to be a source of information now and in the future. By avoiding time-sensitive information/analysis (e.g., economics) it serves as a single source of information for scientists and engineers in fuel processing technology. The material is presented in such a way that this book will serve as a reference for graduate level courses, fuel cell developers, and fuel cell researchers. - Chapters written by experts in each area - Extensive bibliography supporting each chapter - Detailed index - Up-to-date diagrams and full colour illustrations
Book Synopsis Highly Attrition Resistant Zinc Oxide-Based Sorbents for H2S Removal by Spray Drying Technique by :
Download or read book Highly Attrition Resistant Zinc Oxide-Based Sorbents for H2S Removal by Spray Drying Technique written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Primary issues for the fluidized-bed/transport reactor process are high attrition resistant sorbent, its high sorption capacity and regenerability, durability, and cost. The overall objective of this project is the development of a superior attrition resistant zinc oxide-based sorbent for hot gas cleanup in integrated coal gasification combined cycle (IGCC). Sorbents applicable to a fluidized-bed hot gas desulfurization process must have a high attrition resistance to withstand the fast solid circulation between a desulfurizer and a regenerator, fast kinetic reactions, and high sulfur sorption capacity. The oxidative regeneration of zinc-based sorbent usually initiated at greater than 600 C with highly exothermic nature causing deactivation of sorbent as well as complication of sulfidation process by side reaction. Focusing on solving the sorbent attrition and regenerability of zinc oxide-based sorbent, we have adapted multi-binder matrices and direct incorporation of regeneration promoter. The sorbent forming was done with a spray drying technique that is easily scalable to commercial quantity.
Book Synopsis A Low Cost, Long Life Zinc Oxide Based Sorbent by : Robert J. Copeland
Download or read book A Low Cost, Long Life Zinc Oxide Based Sorbent written by Robert J. Copeland and published by . This book was released on 1996 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dry Syngas Purification Processes for Coal Gasification Systems by : Makoto Kobayashi
Download or read book Dry Syngas Purification Processes for Coal Gasification Systems written by Makoto Kobayashi and published by Elsevier. This book was released on 2020-10-18 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dry Syngas Purification Processes for Coal Gasification Systems illustrates the promising development status of dry syngas purification for various power generation systems based on coal gasification. The core advantages of dry syngas purification, methodologies for impurity measurement, sorbents development, and evaluation of process performance are described in-depth, and from a practical perspective that is based on current research and development. Reviewing key findings from process integration, the book encompasses scale-up strategies from pilot processes to achieve dry syngas processing for new build plants. The book provides researchers and engineers with practical information to realize dry syngas purification processes for each context. - Delivers pathways to realize dry syngas purification processes customized to specific power plant contexts - Provides analytical tools to facilitate plant operators in examining and interpreting the relevant impurities of coal gasification and gas treatment processes - Illustrates rational strategies for developing capable and durable dry removal sorbent for syngas impurities - Describes process design and integration through key engineering evaluation - Describes scale-up strategies of dry syngas processing for their deployment in new plants - Provides prospects on the development of future coal energy conversion system adopting dry syngas purification processes
Book Synopsis Zinc Oxide by : Dalton Boyles Faloon
Download or read book Zinc Oxide written by Dalton Boyles Faloon and published by . This book was released on 1925 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 4th International Conference on Separations Science and Technology by : Zhangfa Tong
Download or read book Proceedings of the 4th International Conference on Separations Science and Technology written by Zhangfa Tong and published by World Scientific. This book was released on 2004 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest achievements of separation science and technology. It highlights the application of separation with regard to problems of current interest, such as the protection of the environment and the development of emerging technology, including chemical engineering, biotechnology, renewable energy sources and recycling of materials.
Book Synopsis Regenerating a Long-Life Zinc Oxide-Based Sorbent for Moving Bed Reactors by : Robert J. Copeland
Download or read book Regenerating a Long-Life Zinc Oxide-Based Sorbent for Moving Bed Reactors written by Robert J. Copeland and published by . This book was released on 1998 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-12 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clean Utilization of Coal by : Yuda Yürüm
Download or read book Clean Utilization of Coal written by Yuda Yürüm and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the lectures presented at the Advanced Study Institute on "Chemistry and Chemical Engineering of Catalytic Solid Fuel Conversion for the Production of aean Synthetic Fuels" which was held at Ak~;ay, Edremit, Tiirkiye, between July 21 and August 3, 1991. The book includes 23 chapters originally written for the meeting by distinguished scientists an technologists in the field. l would like to acknowledge the contribution of each of the authors in the book. Their efforts have shed light on our understanding in coal science research and better utilization of coal. Three main subjects: structure and reactivity of coal; cleaning of coal and its products, and factors affecting environmental balance of energy usage and solutions for future, were discussed in the Institute and these are presented under six groups in the book. I hope that of great use to research workers from academic and industrial background. the book will be Many people contributed to the success of the Institute on which this volume was based. I take this occasion to thank my colleagues who lectured in the Institute, both for their efforts during the two weeks and their expertly prepared lecture notes that reached to me in time. The Institute was generously sponsored by the Scientific and Environmental Affairs Dh·ision of the NATO and their contribution is deeply acknowledged.
Download or read book Zinc Titanate Sorbents written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present invention provides a zinc titanate sorbent material useful in desulfurization applications. The zinc titanate material is in the form of generally spherical particles of substantially uniform chemical distribution. The sorbent material is capable of absorbing sulfur compounds from a gaseous feed in an amount of at least about 15 weight percent based on the weight of the sorbent. The sorbent material is prepared by a process including: (a) forming a zinc oxide/titanium dioxide dry blend, (b) preparing a substantially uniform aqueous slurry comprising the zinc oxide/titanium dioxide dry blend, organic binder, and at least about 1 weight percent inorganic binder based on the solids weight of the slurry, (c) spray drying the slurry to produce substantially spherical particles, and (d) calcining the particles at a temperature of between about 750.degree. C. to about 950.degree. C. The dry blend is formed by mixing between about 0.5 to about 2 parts zinc oxide having a median particle size of less than about 0.5 .mu., and about 1 part titanium dioxide having a median particle size of less than about 1 .mu. The slurry contains substantially no free silica and may be prepared by the process including (1) preparing an aqueous solution of organic binder, (2) adding the dry blend to the aqueous solution of organic binder, and (3) adding the inorganic binder to the solution of organic binder, and blend. Additional reagents, such as a surfactant, may also be incorporated into the sorbent material. The present invention also provides a process for desulfurizing a gaseous stream. The process includes passing a gaseous stream through a reactor containing an attrition resistant zinc titanate sorbent material of the present invention.
Book Synopsis Materials & Components in Fossil Energy Applications by :
Download or read book Materials & Components in Fossil Energy Applications written by and published by . This book was released on with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flue Gas Desulfurization and Industrial Minerals by : M. Michael Miller
Download or read book Flue Gas Desulfurization and Industrial Minerals written by M. Michael Miller and published by . This book was released on 1993 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 4,101 references on FGD [Flue Gas Desulfurization] ... primarily from 1982 through June 1993. Complements the "Flue Gas Desulfurization and Denitrification" bibliography published by the U.S. Dept. of Energy in Jan. 1985. References were located on the Energy, Science and Technology, Pollution Abstracts, and Environmental Bibliography databases. Primarily covers FGD and the use of industrial minerals in the desulfurization process or in by-product utilization and disposal. Emphasizes post-combustion removal of sulfur dioxide through processes such as in-duct injection and wet and dry scrubbing.
Book Synopsis Energy Technology 2019 by : Tao Wang
Download or read book Energy Technology 2019 written by Tao Wang and published by Springer. This book was released on 2019-02-09 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection addresses the need for sustainable technologies with reduced energy consumption and pollutants and the development and application of alternative sustainable energy to maintain a green environment and energy supply. Contributions focus on energy-efficient technologies including innovative ore beneficiation, smelting technologies, and recycling and waste heat recovery, as well as emerging novel energy technologies. Papers also cover various technological aspects of sustainable energy ecosystems, processes that improve energy efficiency, reduce thermal emissions, and reduce carbon dioxide and other greenhouse emissions. Papers from the following symposia are presented in the book: Energy Technologies and Carbon Dioxide Management Solar Cell Silicon Advanced Materials for Energy Conversion and Storage
Download or read book ASME Technical Papers written by and published by . This book was released on 1997 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1984 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
