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Elemental Sulfur Recovery from SO2-Rich Streams

  • Conference paper
Desulfurization of Hot Coal Gas

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

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Abstract

Single-stage catalytic reduction of SO2 to elemental sulfur is a promising new technology better suited to treat SO2-rich streams in power plants than the conventional multi-stage Claus process. SO2-containing streams are produced in IGCC power plants as well as in conventional coal-fired boilers employing regenerative flue gas desulfurization. In this paper we describe the performance of a new highly active and selective catalyst for dilute- or concentrated- SO2 reduction by CO, CH4 or CO+H2 reductants. The catalyst comprises a transition metal oxide as a minor component in a fluorite-type oxide matrix. The properties of this type of composite oxide are illustrated here by the system of copper or nickel metal oxide in cerium oxide or doped cerium oxide. The reaction of SO2 with CO is discussed within the redox framework. Strong synergism for this reaction is displayed by the association of the transition metal with the fluorite-type oxide.

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Author information

Authors and Affiliations

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

    M. Flytzani-Stephanopoulos, T. Zhu & L. Kundakovic

  2. Department of Chemical Engineering, Massachusetts Institute of Technology, Amoco Research Center, Naperville, IL, 60563, USA

    W. Liu

  3. Amoco Research Center, Naperville, IL, 60563, USA

    W. Liu

Authors
  1. M. Flytzani-Stephanopoulos
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  2. W. Liu
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  3. T. Zhu
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  4. L. Kundakovic
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Editor information

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., Liu, W., Zhu, T., Kundakovic, L. (1998). Elemental Sulfur Recovery from SO2-Rich Streams. 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_18

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  • DOI: https://doi.org/10.1007/978-3-642-58977-5_18

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-63810-7

  • Online ISBN: 978-3-642-58977-5

  • eBook Packages: Springer Book Archive

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