Numerical Simulation of Mass Transfer Performance of Sieve Distillation Trays

X. You

Abstract
A turbulent mixed two-phase flow model is employed to predict the flow on a column distillation tray by considering the resistance and the enhanced turbulence, which are created by the uprising vapor. The tray flow patterns of our numerical model are confirmed satisfactorily by the experimental measurements. The dependence of mass transfer performance of sieve distillation tray on the physical properties of fluid and tray flow patterns is quantitatively analyzed. Furthermore, the ways to improve the efficiency of distillation sieve are discussed.

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Keywords
Turbulent two-phase flow, mass transfer performance, distillation, CFD