Theoretical and Experimental Chemistry

, Volume 3, Issue 2, pp 108–111 | Cite as

Effects of reactant concentration on the internal diffusion retardation of irreversible heterogeneous catalytic reactions

  • N. I. Shameko
  • O. A. Strel'tsov


A theoretical analysis is presented for these effects for reactions that are not retarded by products and of orders zero, one, and two. The retardation is found to increase for reactions of fractional order 0≤≤n<1 as the reactant is consumed, while first-order reactions are unaffected and higher-order ones show a decreasing effect. The results for zero order are compared with experiment for the catalytic hydrogenation of carbon monoxide.


Hydrogenation Carbon Monoxide Theoretical Analysis Catalytic Reaction Fractional Order 
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Copyright information

© The Faraday Press, Inc. 1969

Authors and Affiliations

  • N. I. Shameko
    • 1
    • 2
  • O. A. Strel'tsov
    • 1
    • 2
  1. 1.Pisarzhevskii Institute of Physical ChemistryAS UkrSSRKiev
  2. 2.Ukranian Research and Design Institute for the Petrochemical IndustryKiev

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