Ternary mass transfer in a wetted wall column. Significance of diffusional interactions. Part I. Stefan diffusion

Abstract

This paper examines methods for predicting ternary mass transfer from information on the transport properties of the constituent binary pairs, with a view to determining the significance of ditrusional interactions in multicomponent mass transfer. Experimental data obtained by Modine in a wetted-wall column for mass transfer, between a falling film of a binary liquid mixture containing acetone and benzene and a downward flowing ternary vapour-gas mixture containing acetone, benzene and nitrogen or helium, are used to test the validity of three ditrerent predictive multicomponent mass transfer models for gas phase transfer, as follows.