Download or read book High Temperature H2S Removal Using Limestones written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High temperature H2S removal Processes Using Limestones written by and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process under investigation involves removal of H2S from the coal gas by sorption into a moving bed of limestone (or lime) particles. NH3 in the coal gas will be broken down by catalysis and gasifier fines will be removed by cycloning and by filtration by the moving granular bed. This project focuses on developing the necessary description of the kinetics of the reaction of H2S with limestone, and in particular the evolution of the structure of the solid during the course of the reaction. A differential tube quartz reactor system for studying these reactions in the temperature range of interest has been built. Since studies at gasification pressures would require a more expensive apparatus, this study is confined to atmospheric pressure.
Download or read book Low BTU Gasification High Temperature low Temperature H2S Removal Comparison Effect on Overall Thermal Efficiency in a Combined Cycle Power Plant written by R. A. Ashworth and published by . This book was released on 1973 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Cleaning at High Temperatures written by R. Clift and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2nd International Symposium
Download or read book High Temperature H2S Removal from IGCC Coarse Gas written by Jiang Wu and published by Springer. This book was released on 2017-11-07 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides extensive information on high-temperature H2S removal for integrated gasification combined cycle (IGCC) coarse gas, together with briefly introductions to the concept of clean coal technology, and to the mechanism and kinetics of hot coal gas desulfurizers. Readers will gain a comprehensive understanding of available control methods for high-temperature H2S removal in IGCC coarse gas and how the technology has been adopted by industry. As such, the book offers a unique resource for researchers and engineers in the fields of energy science and technology, environmental science and technology, and chemical engineering.
Download or read book Synthesis and Development of Processes for the Recovery of Sulfur from Acid Gases Part 1 Development of a High temperature Process for Removal of H2S from Coal Gas Using Limestone Thermodynamic and Kinetic Considerations Part 2 Development of a Zero emissions Process for Recovery of Sulfur from Acid Gas Streams written by and published by . This book was released on 1993 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Limestone can be used more effectively as a sorbent for H2S in high-temperature gas-cleaning applications if it is prevented from undergoing calcination. Sorption of H2S by limestone is impeded by sintering of the product CaS layer. Sintering of CaS is catalyzed by CO2, but is not affected by N2 or H2. The kinetics of CaS sintering was determined for the temperature range 750--900°C. When hydrogen sulfide is heated above 600°C in the presence of carbon dioxide elemental sulfur is formed. The rate-limiting step of elemental sulfur formation is thermal decomposition of H2S. Part of the hydrogen thereby produced reacts with CO2, forming CO via the water-gas-shift reaction. The equilibrium of H2S decomposition is therefore shifted to favor the formation of elemental sulfur. The main byproduct is COS, formed by a reaction between CO2 and H2S that is analogous to the water-gas-shift reaction. Smaller amounts of SO2 and CS2 also form. Molybdenum disulfide is a strong catalyst for H2S decomposition in the presence of CO2. A process for recovery of sulfur from H2S using this chemistry is as follows: Hydrogen sulfide is heated in a high-temperature reactor in the presence of CO2 and a suitable catalyst. The primary products of the overall reaction are S2, CO, H2 and H2O. Rapid quenching of the reaction mixture to roughly 600°C prevents loss Of S2 during cooling. Carbonyl sulfide is removed from the product gas by hydrolysis back to CO2 and H2S. Unreacted CO2 and H2S are removed from the product gas and recycled to the reactor, leaving a gas consisting chiefly of H2 and CO, which recovers the hydrogen value from the H2S. This process is economically favorable compared to the existing sulfur-recovery technology and allows emissions of sulfur-containing gases to be controlled to very low levels.
Download or read book Syngas from Waste written by Luis Puigjaner and published by Springer Science & Business Media. This book was released on 2011-07-15 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Syngas from Waste presents the most recent concepts, methods and techniques for the preliminary design of a promising emerging technology: production of clean syngas from waste materials. An in-depth account is given of the steps necessary to achieve the optimum design and up-to-date tools are presented to support the designer’s decision-making tasks: modelling, simulation and optimization. Numerous illustrations and tables are included to facilitate the reader’s understanding, as well as suggestions for further reading. The text is complemented with practical examples and industrial applications ranging from clean power generation to complex combined heat and power systems and high purity hydrogen for use in fuel cells. Syngas from Waste contains high-quality contributions from leading experts in the field. It is intended for academics at MSc or PhD level, researchers and industry practitioners in syngas production and applications, who are involved in the design, retrofit design and evaluation activities of alternative scenarios. It contains valuable teaching material for lecturers and provides industry professionals with the know-how to evaluate and improve existing installations or even to design a new one.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book H2S removal Processes for Low BTU Coal Gas written by M. S. Edwards and published by . This book was released on 1979 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development Report written by and published by . This book was released on 1962 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Studies in Limestone Sulfidation written by Laurent Alain Fenouil and published by . This book was released on 1992 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by United States. Office of Coal Research and published by . This book was released on 1973 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Technology written by United States. Office of Coal Research and published by . This book was released on 1973 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report Office of Coal Research written by United States. Office of Coal Research and published by . This book was released on 1969 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clean Air Act Amendments 1975 written by United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment and published by . This book was released on 1975 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book High Temperature H2S Removal from Coal Gasification Products written by Robert Allen Bradway and published by . This book was released on 1974 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
