Methanol synthesis in a trickle-bed reactor

Authors

  • Geoffrey Pass,

    1. Kinetics, Catalysis, and Reaction Engineering, Laboratory Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
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  • Craig Holzhauser,

    1. Kinetics, Catalysis, and Reaction Engineering, Laboratory Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
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  • A. Akgerman,

    Corresponding author
    1. Kinetics, Catalysis, and Reaction Engineering, Laboratory Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
    • Kinetics, Catalysis, and Reaction Engineering Laboratory, Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
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  • R. G. Anthony

    1. Kinetics, Catalysis, and Reaction Engineering, Laboratory Department of Chemical Engineering, Texas A&M University, College Station, TX 77843
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Abstract

A novel approach to methanol production from coal-derived synthesis gas is cocurrent gas and mineral oil feed flowing over a packed bed of catalyst in the trickle flow regime. Production rates of 0.7 to 2 kg/h · kg cat were obtained for a H2/(CO + CO2) ratio of 1 and at space velocities of 2,000 to 25,000 L/h · kg cat. Slurry reactor and bubble column productivities were substantially less for H2/(CO + CO2) ratios of 0.55 to 2.3 at similar conditions as the trickle-bed reactor. Reaction temperature was 250°C in three types of reactors but 240°C in gas-liquid phase Berty reactor; the pressure in the slurry and bubble column reactors was 52-70 atm and in Berty Reactor 77.5-100 atm, whereas 70 atm pressure was used in the trickle bed. Differences in production rates and conversions can be explained by the extent of backmixing in trickle-bed and slurry reactors operating at the same conditions.

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