Abstract
Abstract Dispersed phase holdup data have been obtained for Kuhni and ORC columns with investigation on three different systems (toluene–water, n-butyl acetate–water, n-butanol–water). The effects of operational variables such as mass transfer directions with acetone transfer, rotor speed and dispersed and continuous phase velocities have been investigated. The dispersed phase holdup was influenced mainly by mass transfer direction, agitation speed and velocity of the dispersed phase. Calculations with the literature equations cannot predict experimental data, thus a unified correlation considering the geometric parameter was provided to predict holdup. The correlation involving Froude number, phase velocities, modified property group along with those of geometry factor fits the experimental data well. The results of the proposed correlation were compared with the experimental data obtained from the literature and the present investigation. Findings of this study demonstrated that the proposed correlation leads to an accurate prediction for the dispersed phase holdup.
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