Prediction of Temperature and Concentration Distributions of Distillation Sieve Trays by CFD

A three-dimensional two-fluid computational fluid dynamics (CFD) model is developed to predict concentration and temperature distributions on sieve trays of distillation columns and good simulation results are obtained. The dispersed gas phase and continuous liquid phase are modeled in the Eulerian framework as two interpenetrating phases with interphase momentum, heat and mass transfer. Closure models are developed for interphase transfer terms. The tray geometries and operating conditions are based on the experimental works of Dribika and Biddulph (AIChE. J., 32