Desulfurization of Hot Coal GasAysel T. Atimtay, Douglas P. Harrison Springer Science & Business Media, 1998 M08 24 - 408 pages 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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ABGC Air Blown attrition based sorbents bed reactor breakthrough calcium calcium sulfide carbon catalyst cerium oxide CFBC Chem CO₂ coal gas coal gasification combined cycle combustion composition conversion copper desulfurization dolomite elemental sulfur emissions energy environmental equilibrium Figure fixed bed fluidized bed fluidized bed reactor fluidized-bed Flytzani-Stephanopoulos fuel gas Gangwal gas cleaning gas turbine gases gasifier H₂O H₂S H2S concentrations H2S removal heat HGCU Hot Coal Gas hot gas cleanup hot gas desulfurization hydrogen hydrogen sulfide IGCC IGCC system increase iron oxide kinetics limestone manganese metal oxides mixture MnAl2O4 moving-bed N₂ operation oxide sorbents oxygen particles pellets PFBC plant ppmv pressure ratio reaction reactivity reduction removal efficiency Review Meeting samples SO₂ solid sorbent sulfidation and regeneration sulfur capacity sulfur removal sulphur surface area syngas tests thermodynamic TiO2 velocity Z-Sorb zinc ferrite zinc oxide zinc titanate