Desulfurization of hot coal gas [proceedings of the NATO Advanced Study Institute on Desulfurization of Hot Coal Gas with Regenerable Metal Oxide Sorbents: New Developments, held in Kusadasi, Turkey, July 1996

Economic and environmental requirements for advanced power generating systems demand the removal of corrosive and other sulfurous compounds from hot coal gas. After a brief account of the world energy resources and an overview of clean coal technologies, a review of regenerable metal oxide sorbents for cleaning the hot gas is provided. Zinc oxide, copper oxide, calcium oxide, manganese oxide based as well as supported and mixed metal oxide sorbents are treated. Performance analysis of these sorbents, effects of various parameters on the desulfurization efficiency, kinetics of sulfidation and regeneration reactions, sulfiding and regeneration mechanisms are discussed. Two chapters present recent results in the direct production of elemental sulfur from regeneration or SO2-rich gases. Front Matter....Pages I-VIII World Energy Resources, Their Use and the Environment....Pages 1-19 Overview of Clean Coal Technologies and Current Status of the Air Blown Gasification Cycle....Pages 21-39 Asssessment of Coal Gasification Processes — Relevance to Sorbent Development....Pages 41-55 Effect of Process Conditions on Thermodynamics of Gasification....Pages 57-74 Application of IGCC Technology to Power Generation....Pages 75-101 Hot Gas Cleaning — An Overview....Pages 103-116 Survey of Desulfurization Processes for Coal Gas....Pages 117-136 Removal of H 2 S from coal gas: effect of various parameters on the desulfurization efficiency....Pages 137-158 Hot Gas Cleaning, Sulfiding Mechanisms in Absorption of H 2 S by Solids....Pages 159-178 Kinetics of Sulfidation Reactions Between H 2 S and Bulk Oxide Sorbents....Pages 179-211 Performance Analysis of ZnO-Based Sorbents in Removal of H 2 S From Fuel Gas....Pages 213-242 Performance of Manganese-based Sorbents in High-Temperature Coal Gas Desulfurization....Pages 243-267 In-Situ Desulfurization of Coal Gas with CaO-Based Sorbents....Pages 269-282 Stabilization and Regeneration of Spent Sorbents....Pages 283-296 Mixed Metal Oxide Sorbents....Pages 297-313 Development of Supported Sorbents for Hydrogen Sulfide Removal from Fuel Gas....Pages 315-329 Regeneration of Sulfided Sorbents and Direct Production of Elemental Sulfur....Pages 331-364 Elemental Sulfur Recovery from SO 2 -Rich Streams....Pages 365-383 Experience of Regenerable Sulphur Sorbents in Real Fuel Gas systems....Pages 385-397 Summary of Lectures and Discussion on Future Research....Pages 399-403 Back Matter....Pages 405-413 World Energy Resources, Their Use and the Environment Overview of Clean Coal Technologies and Current Status of the Air Blown Gasification Cycle Assessment of Coal Gasification Processes — Relevance to Sorbent Development Effects of Process Conditions on Thermodynamics of Gasification Application of IGCC Technology to Power Generation Hot Gas Cleaning — An Overview Survey of Desulfurization Processes for Coal Gas Removal of H2S from Coal Gas: Effect of Various Parameters on the Desuldfurization Efficiency Hot Gas Cleaning, Sulfiding Mechanisms in Absorption of H2S by Solids Kinetics of Sulfidation Reactions Between H2S and Bulk Oxide Sorbents Performance Analysis of ZnO-Based Soibents in Removal of H2S From Fuel Gas Performance of Manganese-Based Sorbents in High Temperature Coal Gas Desulfiirization In-Situ Desulfiirization of Coal Gas with CaO-Based Sorbents Stabilization and Regeneration of Spent Sorbents Mixed Metal Oxide Sorbents Development of Supported Sorbents for H2S Removal from Fuel Gas Regeneration of Sulfided Sorbents and Direct Production of Elemental Sulfur Elemental Sulfur Recovery from SO2-Rich Streams Experience of Regenerable Sulphur Sorbents in Real Fuel Gas Systems Summary of Lectures and Discussion on Future Research. Proceedings of the NATO Advanced Study Institute on Desulfurization of Hot Coal with Regenerable Metal Oxide Sorbents: New Developments, held in Kusadasi, Turkey, July 1996