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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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
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