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Experimental investigation of column efficiency for two ternary systems in a three-phase packed distillation column

Authors

  • M. Amouei Torkmahalleh,

    1. School of Chemical Engineering, College of Engineering, University of Tehran P.O. BOX: 11555-4563, Tehran, Iran
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  • M.M. Montazer Rahmati,

    Corresponding author
    1. School of Chemical Engineering, College of Engineering, University of Tehran P.O. BOX: 11555-4563, Tehran, Iran
    • School of Chemical Engineering, College of Engineering, University of Tehran P.O. BOX: 11555-4563, Tehran, Iran.
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  • B. Nematdoost Haghi

    1. School of Chemical Engineering, College of Engineering, University of Tehran P.O. BOX: 11555-4563, Tehran, Iran
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Abstract

In this work, the effect of vapor load and initial feed concentrations on column efficiency and liquid hold-up in a two- and three-phase packed distillation column at total reflux was investigated. Results for the two investigated mixtures (n-heptane, n-hexane, water) and (ethyl acetate, 1-butanol, water) reveal that column efficiency remains almost constant for the former mixture but changes significantly for the latter. Specific liquid hold-up and water to organic-phase volumetric ratio within the column affect the column efficiency due to variations in initial feed concentrations. Influence of vapor load on separation efficiency and specific liquid hold-up is also studied.

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