Simultaneous determination of diffusion and adsorption properties of microporous sorbents under continuous flow conditions by frequency response methods: propane in silicalite-1

Abstract

Frequency response methods are applied in a novel manner to investigate the sorption dynamics of a bed of microporous sorbent under continuous flow conditions. It is demonstrated that the technique is capable of simultaneously determining the diffusion and sorption parameters controlling uptake into the sorbent independent of any parameters describing the sorbent bed. The system studied in this work is the sorption of propane into the zeolite silicalite 1. Diffusion parameters are obtained which are within the range of existing literature values.