Excess properties and column dynamics of multicomponent gas adsorption

Abstract

The Gibbsian surface excesses are the true experimental variables in measuring the extent of adsorption from gases. The surface excess variables can be conveniently used to describe the dynamic adsorption of gases in adsorbent columns without defining adsorbed phase or the adsorbent structure. The resulting mass and enthalpy balance equations are as practical to solve as those conventionally written by using the actual amounts adsorbed as the variables to define adsorption.