Simultaneous measurement of interfacial area and mass transfer coefficient in three-phase fluidized beds

Authors

  • Vinodkumar R. Dhanuka,

    1. Dept. of Chemical Engineering, University of Salford, Salford, England
    Current affiliation:
    1. British Gas Corp., Solihull, England
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  • Josef B. Stepanek

    Corresponding author
    1. Dept. of Chemical Engineering, University of Salford, Salford, England
    • Dept. of Chemical Engineering, University of Salford, Salford, England
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Abstract

The technique of simultaneous measurement of the mass transfer coefficient and the interfacial area (Robinson and Wilke, 1974) was used to measure the volumetric liquid-phase mass transfer coefficient equation image, the interfacial area equation image and the true liquid-phase mass transfer coefficient (kL) in three-phase fluidized beds. The eddy-cell model of Lamont and Scott (1970) was found to give a reasonable fit to the kL data, if the proportionality constant is modified. The equation image and equation image data were correlated by empirical equations. Some information on bubble diameter was deduced from the interfacial area and holdup measurements.

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