Abstract
The adsorption of CO2 on the fixed beds of Molecular Sieves 4A, 5A and 13X, respectively, was studied by use of isotopic exchange between CO2 and 14CO2.
Fixed-bed breakthrough curves obtained were analyzed, comparing them with theoretical curves, and the values of intraparticle diffusion resistance were calculated.
The values were further analyzed based on the authors'' diffusion model with the aid of physical properties of adsorbent particles.
The intraparticle diffusivity is greatly affected by the ratio of micropore radius (in this case the openings of crystalline cavity) to diffusing molecules.
