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Author : Felicia F. Peng
Publisher :
ISBN 13 :
Total Pages : 478 pages
Book Rating : 4.:/5 (23 download)
Download or read book Kinetics of Coal Char Gasification in Steam at 1000-1400°C and 0.1-1.5 MPA written by Felicia F. Peng and published by . This book was released on 1989 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James L. Johnson
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.3/5 (91 download)
Download or read book Kinetics of Coal Gasification written by James L. Johnson and published by John Wiley & Sons. This book was released on 1979-12-20 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the best description of coal gasification reactions available today, presenting a series of publications by the late James Lee Johnson that trace his work on the development of coal gasification kinetics. Puts gasification kinetics into perspective for reactor design by discussing gasification thermodynamics, fluidized beds, and the physical characteristics of coals and coal chars for estimating this gasification reactivity. An outstanding reference based on a chaper contributed by Dr. Johnson to CHEMISTRY OF COAL UTILIZATION SUPPLEMENTARY VOLUME 2 (edited by Martin A. Elliot).
Author : Norman Libni Cook
Publisher :
ISBN 13 :
Total Pages : 234 pages
Book Rating : 4.:/5 (354 download)
Download or read book Kinetics of Steam Gasification of Coal Char Catalyzed with Potassium Carbonate written by Norman Libni Cook and published by . This book was released on 1982 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (123 download)
Download or read book Evaluation of Coal Char Gasification Kinetics and Pore Development in High Pressure Steam and Carbon Dioxide written by and published by . This book was released on 2020 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: High pressure steam and CO2 gasification kinetics -- Intrinsic reaction rates -- Pore development -- Highveld coal char.
Author : Nzongola Kayembe
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (185 download)
Download or read book Kinetics of the Coal Char-steam Reaction written by Nzongola Kayembe and published by . This book was released on 1975 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce Edwin Murphree
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (35 download)
Download or read book The Kinetics of the Steam Activation of Coal Char written by Bruce Edwin Murphree and published by . This book was released on 1977 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Madison A. Kelley
Publisher :
ISBN 13 :
Total Pages : 182 pages
Book Rating : 4.:/5 (11 download)
Download or read book Investigation of High-temperature and High-pressure Steam Gasification Kinetics of a Coal-derived Char Surrogate written by Madison A. Kelley and published by . This book was released on 2017 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetics of Char Gasification Reactions Under Conditions of Underground Coal Gasification written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project is directed toward support studies for the national endeavor on in situ coal gasification. The objective is to determine reaction-controlling variables and reaction kinetics for gasification of chars resulting from pyrolysis of coal in underground gasification. The data obtained from these studies are used in the mathematical modeling of in situ gasification systems, in order to understand and interpret field experimental data and to design future field studies. The reactions being studied include steam-char, CO/sub 2/-char, and water gas shift reactions, as well as methane-producing reactions such as the methanation of CO or the hydrogen-char reaction. The kinetics studies are carried out in a packed bed differential reactor in which steam, H/sub 2/, CO/sub 2/, and/or other reactants are blended with N/sub 2/ to obtain the desired total pressure and partial pressures of reactants. The preparation of the char is carried out immediately prior to gasification in the reactor under conditions of pressure, heating rate, and sweeping gas composition similar to those encountered in underground gasification. The coals studied include Wyodak and Hanna subbituminous coals and Pittsburgh seam high volatile bituminous coal. Kinetic data are reported for the reaction of steam with chars prepared from the Wyodak and Hanna coals. The dependence of the reaction rate on the partial pressures of reactant steam and product hydrogen is described. The temperature dependence of the reaction rates indicates that diffusion of reactants and products through pore structure of Hanna char limits the reaction more severely than in the case of the Wyodak char. The rate of reaction of steam with Wyodak char is approximately 50% greater than the rate observed with the Hanna char. The reaction order with respect to steam at low partial pressures of steam varies from 0.5 to approximately 1. Preliminary information is also reported for reaction of steam with chars prepared from Pittsburgh seam coal.
Download or read book Kinetic Model of Char-steam Reaction for Hanna Coal written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports the derivation of a kinetic model to describe gasification via the char-steam reaction for Hanna subbituminous coal under in situ operating conditions. Variables considered in the model are temperature, partial pressures of steam and hydrogen, and extent of carbon conversion. The relationship between processing parameters and the physical properties of the char has been found to differ significantly from that described in previously published studies. In this newly proposed approach, the structural changes during gasification of the char have been shown to have considerable influence on the overall reaction rate. This model correlates the combined effects of chemical variations and physical variations of the char structure in a simple form. Agreement of the experimental results and the model prediction throughout the range of operating conditions expected in in situ gasification is demonstrated.
Author : Gert Hendrik Coetzee
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (843 download)
Download or read book The Influence of Particle Size on the Steam Gasification Kinetics of Coal written by Gert Hendrik Coetzee and published by . This book was released on 2011 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Barbara Gorecka
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (11 download)
Download or read book Steam Gasification of Coal Char written by Barbara Gorecka and published by . This book was released on 1983 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : N. M. Laurendeau
Publisher :
ISBN 13 : 9780080242170
Total Pages : pages
Book Rating : 4.2/5 (421 download)
Download or read book Heterogenous Kinetics of Coal Char Gasification and Combustion written by N. M. Laurendeau and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. W. Hoffman
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book The Reaction Kinetics Involved in the Steam Gasification of Large Coal Particles written by J. W. Hoffman and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final year report -- Chemiese en Mineraalingenieurswese.
Author : Daniel Geoffrey Roberts
Publisher :
ISBN 13 :
Total Pages : 598 pages
Book Rating : 4.:/5 (222 download)
Download or read book Intrinsic Reaction Kinetics of Coal Chars with Oxygen, Carbon Dioxide and Steam at Elevated Pressures written by Daniel Geoffrey Roberts and published by . This book was released on 2000 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Steven Dershowitz
Publisher :
ISBN 13 :
Total Pages : 490 pages
Book Rating : 4.:/5 (72 download)
Download or read book High Temperature Gasification of Coal Char in Carbon Dioxide and Steam written by Mark Steven Dershowitz and published by . This book was released on 1979 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David A. Bell
Publisher : William Andrew
ISBN 13 : 1437778518
Total Pages : 414 pages
Book Rating : 4.4/5 (377 download)
Download or read book Coal Gasification and Its Applications written by David A. Bell and published by William Andrew. This book was released on 2010-12-08 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Skyrocketing energy costs have spurred renewed interest in coal gasification. Currently available information on this subject needs to be updated, however, and focused on specific coals and end products. For example, carbon capture and sequestration, previously given little attention, now has a prominent role in coal conversion processes.This book approaches coal gasification and related technologies from a process engineering point of view, with topics chosen to aid the process engineer who is interested in a complete, coal-to-products system. It provides a perspective for engineers and scientists who analyze and improve components of coal conversion processes.The first topic describes the nature and availability of coal. Next, the fundamentals of gasification are described, followed by a description of gasification technologies and gas cleaning processes. The conversion of syngas to electricity, fuels and chemicals is then discussed. Finally, process economics are covered. Emphasis is given to the selection of gasification technology based on the type of coal fed to the gasifier and desired end product: E.g., lower temperature gasifiers produce substantial quantities of methane, which is undesirable in an ammonia synthesis feed. This book also reviews gasification kinetics which is informed by recent papers and process design studies by the US Department of Energy and other groups, and also largely ignored by other gasification books.• Approaches coal gasification and related technologies from a process engineering point of view, providing a perspective for engineers and scientists who analyze and improve components of coal conversion processes • Describes the fundamentals of gasification, gasification technologies, and gas cleaning processes • Emphasizes the importance of the coal types fed to the gasifier and desired end products • Covers gasification kinetics, which was largely ignored by other gasification books - Provides a perspective for engineers and scientists who analyze and improve components of the coal conversion processes - Describes the fundamentals of gasification, gasification technologies, and gas cleaning processes - Covers gasification kinetics, which was largely ignored by other gasification books
Author : Shang Jung Yuh
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.:/5 (115 download)
Download or read book Kinetic and Mechanistic Studies of the Steam Gasification of Coal Chars Catalyzed by Alkali Metal Salts written by Shang Jung Yuh and published by . This book was released on 1984 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
