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Prediction of Dry Scrubbing Process Performance

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Book cover Gas Cleaning at High Temperatures

Abstract

A mathematical model is presented to simulate dry scrubbing processes for sorption of acid gases in filter cakes. The model can deal with both fixed and moving cake boundary problems. The data for major kinetic parameters available in the literature for reactions of Ca-compounds with HC1 are reviewed and analysed. Numerical solutions for the Ca(OH)2/HC1 reaction at 373–523 K demonstrate that solid state diffusion through the product layer is the rate controlling step in this temperature range. Chemical reaction rate is shown to be controlling at higher temperatures. The model is used to compare the effectiveness of different strategies for sorbent injection. Compared with continuous addition, the injection of at least part of the sorbent at the beginning of the operation cycle immediately following filter cleaning can significantly improve the overall efficiency.

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Author information

Authors and Affiliations

  1. Department of Chemical and Process Engineering, University of Surrey, Guildford, GU2 5XH, UK

    W. Duo, J. P. K. Seville, N. F. Kirkby & R. Clift

Authors
  1. W. Duo
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  2. J. P. K. Seville
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  3. N. F. Kirkby
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  4. R. Clift
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Editor information

Editors and Affiliations

  1. Centre for Environmental Strategy, University of Surrey, Guildford, UK

    R. Clift

  2. Department of Chemical and Process Engineering, University of Surrey, Guildford, UK

    J. P. K. Seville

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© 1993 Springer Science+Business Media Dordrecht

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Duo, W., Seville, J.P.K., Kirkby, N.F., Clift, R. (1993). Prediction of Dry Scrubbing Process Performance. In: Clift, R., Seville, J.P.K. (eds) Gas Cleaning at High Temperatures. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2172-9_40

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  • DOI: https://doi.org/10.1007/978-94-011-2172-9_40

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4961-0

  • Online ISBN: 978-94-011-2172-9

  • eBook Packages: Springer Book Archive

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