Concentration polarization in gas permeation

摘要

The aim of this article is to show the importance of concentration polarization effects in the separation of gas-vapor mixtures using membranes. In the experimental part of this work, gas mixture measurements are conducted with a specially designed test cell. The experimental data are analyzed using a two-resistance model for the transport through the membrane, which is derived in the theoretical part oft his work. The two resistances considered are the transport through the boundary layer on the feed side of the membrane and through the separation layer.