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Kinetics of Sulfidation Reactions Between H2S and Bulk Oxide Sorbents

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Desulfurization of Hot Coal Gas

Part of the book series: NATO ASI Series ((ASIG,volume 42))

Abstract

This paper considers the sulfidation kinetics of bulk single oxides as well as mixed metal oxides that have promising overall properties for application to regenerative hot gas desulfurization. The hot fuel gas typically contains a large excess of reductant gases (H2, CO), hence the kinetics of the potential parallel reduction reaction of the oxide sorbent are also considered. Effects of water vapor, typically present in various amounts in coal-gas streams, on the sulfidation/reduction kinetics are addressed as well. In addition to gas composition, the impact of sorbent physical properties and composition on the sulfidation reaction kinetics is examined in this paper. Two major classes of bulk oxide sorbents, namely; ZnO- and CuO-based materials, are used to illustrate the important issues in sulfidation of bulk oxides.

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Authors and Affiliations

  1. Department of Chemical Engineering, Tufts University, Medford, MA, 02155, USA

    M. Flytzani-Stephanopoulos & Z. Li

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  1. M. Flytzani-Stephanopoulos
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  2. Z. Li
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Editors and Affiliations

  1. Environmental Engineering Department, Middle East Technical University, 06531, Ankara, Turkey

    Aysel T. Atimtay

  2. Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA

    Douglas P. Harrison

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© 1998 Springer-Verlag Berlin Heidelberg

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Flytzani-Stephanopoulos, M., Li, Z. (1998). Kinetics of Sulfidation Reactions Between H2S and Bulk Oxide Sorbents. In: Atimtay, A.T., Harrison, D.P. (eds) Desulfurization of Hot Coal Gas. NATO ASI Series, vol 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-58977-5_10

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  • DOI: https://doi.org/10.1007/978-3-642-58977-5_10

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-63810-7

  • Online ISBN: 978-3-642-58977-5

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