Ebook: Desulfurization of Hot Coal Gas

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.

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Content:
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 H2S from coal gas: effect of various parameters on the desulfurization efficiency....Pages 137-158
Hot Gas Cleaning, Sulfiding Mechanisms in Absorption of H2S by Solids....Pages 159-178
Kinetics of Sulfidation Reactions Between H2S and Bulk Oxide Sorbents....Pages 179-211
Performance Analysis of ZnO-Based Sorbents in Removal of H2S 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 SO2-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

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Content:
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 H2S from coal gas: effect of various parameters on the desulfurization efficiency....Pages 137-158
Hot Gas Cleaning, Sulfiding Mechanisms in Absorption of H2S by Solids....Pages 159-178
Kinetics of Sulfidation Reactions Between H2S and Bulk Oxide Sorbents....Pages 179-211
Performance Analysis of ZnO-Based Sorbents in Removal of H2S 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 SO2-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
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