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Mathematical analysis of reactions in metal oxide/carbon mixtures

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Abstract

A mathematical study has been made of the rates of reactions in metal oxide/carbon mixtures. The rate equations derived take into account the rate control by carbon-CO2 oxidation and by diffusive and viscous flow of the reaction products, CO2 and CO, through the packed bed where a pressure gradient exists. As the thickness of the powder mixture increases, the pressure buildup during reduction increases. If the furnace atmosphere is a neutral gas, the rate of reduction of metal oxides by carbon decreases, because of the dilution of CO2 in the interparticle pores of the bed by back diffusion of the furnace atmosphere.

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Authors and Affiliations

  1. Research Laboratory, U. S. Steel Corporation, 15146, Monroeville, Pa

    R. H. Tien (Associate Research Consultant) & E. T. Turkdogan (Senior Research Consultant)

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  1. R. H. Tien
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  2. E. T. Turkdogan
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Tien, R.H., Turkdogan, E.T. Mathematical analysis of reactions in metal oxide/carbon mixtures. Metall Trans B 8, 305–313 (1977). https://doi.org/10.1007/BF02657661

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