Competitive hydrodesulfurization and hydrogenation in a monolithic reactor

Authors

  • Said Irandoust,

    Corresponding author
    1. Department of Chemical Reaction Engineering, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
    • Department of Chemical Reaction Engineering, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
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  • Olof Gahne

    1. Department of Chemical Reaction Engineering, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
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Abstract

Competitive liquid-phase hydrodesulfurization of thiophene and hydrogenation of cyclohexene on a monolithic CoMo/γ-Al2O3 catalyst were studied. The flow pattern in the monolithic catalyst reactor was segmented gas-liquid flow (slug flow). The hydrogen pressure and the temperature were varied between 30–40 bar and 509–523 K, respectively. The experimental data are consistent with rate expressions of the Langmuir-Hinshelwood type where the reactions proceed on two different types of active sites. This kinetic model is based on hydrogenation of the thiophene ring prior to sulfur elimination.

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