Modelling of mass transfer in combination with a homogeneous catalysed reaction

J.A.A. Hoorn, J.A.A. Hoorn, Geert Versteeg

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    Abstract

    The mass transfer rates of a gaseous reactant into a liquid where the reactions are catalyzed by homogeneous catalysts have been evaluated by the numerical solution of the diffusion-reaction equations according to Higbie's penetration theory. The concentration profiles as well as enhancement factors are discussed as functions of the kinetic rate constants and the diffusion coefficients of the catalytic intermediates. In addition to the complex catalytic model, two simplified models were applied in order to facilitate design calculations. One version was obtained by application of the Bodenstein approximation; the simplest version comprised only the stoichiometric reaction. The Bodenstein model provides a very good approximation except for deviating diffusion coefficients of the catalytic intermediates. The applicability of the stoichiometric model is not as wide as with the Bodenstein model, but for some conditions acceptable approximations are achieved.
    Original languageUndefined
    Pages (from-to)2551-2564
    JournalAIChE journal
    Volume52
    Issue number7
    DOIs
    Publication statusPublished - 2006

    Keywords

    • Enhancement factor
    • homogeneous catalysis
    • reaction
    • METIS-238510
    • IR-72058
    • Model
    • Design
    • Diffusion

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