Diffusion Study of Multi-Component Gas Adsorption in MSC5A by Chromatographic Method

1. Introduction The combination of chromatographic method and moment analysis of the response peaks is one of the useful techniques to study adsorption equilibrium and adsorption rate [1]. Perturbation chromatography with the mixed multi component adsorbate gas carrier (two adsorbates) has been applied to several studies on adsorption [2][3]. In this work, perturbation chromatography with multi-component gas carrier (two adsorbates with inert gas) and non-equilibrium thermodynamics linear law was applied for discussion of the interference effect and the displacement effect (those are cross effects) on mass transfer in multi-component gas adsorption as previous study for different gas mixture (He, N 2 , CH 4) [4]. Moment analysis method and stop & go simulation method were utilized to obtain each mass transfer parameter of adsorbate gases. Dependency of micropore diffusion on amount adsorbed and correlation of micropore diffusion with chemical potential driving force for microporous adsorbent were discussed. Also, cross effects were discussed. Ruthven already emphasized the dependency of micropore diffusivity on amount adsorbed in single component adsorption [5]. Tondeur et al gave general background on multi-component perturbation chromatography for the first moment only [6].