Liquid diffusion in microporous alumina pellets

✍ Scribed by Brahm D. Prasher; Yi Hua Ma

• Publisher: American Institute of Chemical Engineers
• Year: 1977
• Tongue: English
• Weight: 969 KB
• Volume: 23
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690230313

✦ Synopsis

Abstract

The effect of the ratio of the molecular solute diameter to the pore diameter and adsorption equilibrium on the liquid phase effective diffsivity for different hydrocarbon solutes was studied in two alumina pellets. A semiemprical correlation based on the relative dimension of the solute molecule with respect to the average pore dimension, the equilibrium partition coefficient, and the porosity is proposed for a variety of binary hydrocarbon systems. The correlation shows that the effective diffusivity is strongly influenced by both the adsorption coefficient as well as the ratio of the solute molecular size to the average pore size.