A Homogeneous Model for Mass Transfer Enhancement in Gas-Liquid-Liquid Systems

摘要

A modified homogeneous mass transfer model based on penetration theory is proposed for the mass transfer enhancement in gas-liquid-liquid systems.The present model assumes the existence of a shuttle mechanism between the organic dispersed phase and the continuous aqueous phase and considers the effect of diffusivity along with the solubility ratio and the dispersed phase holdup.The concept of effective diffusivity for gas in liquid-liquid emulsions has been used to consider the effect of diffusivity on mass transfer enhancement.The proposed model predicts the experimentally obtained enhancement factor with reasonable accuracy and numerical simplicity.Fresh experiments were also conducted to further validate the proposed model.