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Studies in gas-solid reactions: Part I. A structural model for the reaction of porous oxides with a reducing gas

  • Process Metallurgy
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Abstract

A structural model is presented for describing the reaction of a porous metal oxide pellet with a reducing gas. It is suggested that the pellet is made up of a large number of grains and the overall rate of reaction is computed by summing the contributions of all these individual grains. The model thus incorporates structural parameters, such as grain size, porosity (pore size distribution) and allows a quantitative assessment of the role played by these quantities in determining the rate of progress of the reaction.

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Authors and Affiliations

  1. Center for Process Metallurgy at the State University at Buffalo, Buffalo, N. Y.

    J. Szekely

  2. Ethyl Corp., Baton Rouge, La.

    J. W. Evans

Authors
  1. J. Szekely
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  2. J. W. Evans
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J. W. EVANS, formerly Graduate Student in Chemical Engineering at the State University of New York at Buffalo.

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Szekely, J., Evans, J.W. Studies in gas-solid reactions: Part I. A structural model for the reaction of porous oxides with a reducing gas. Metall Trans 2, 1691–1698 (1971). https://doi.org/10.1007/BF02913895

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  • DOI: https://doi.org/10.1007/BF02913895

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