PRESSURE-DEPENDENT MODELS FOR ADSORPTION KINETICS ON A CMS

Autor: Yonn-Sang Bae, Chang Ha Lee, Young Ki Ryu
Rok vydání: 2003
Předmět:
Zdroj: Adsorption Science and Technology.
DOI: 10.1142/9789812704320_0026
Popis: An adsorption kinetic model was developed to evaluate the adsorption rates of five pure gases (Nz, 02, Ar, CO, and Ch) on a Takeda-3A CMS over a wide range of pressures up to 15atm. The kinetic characteristics of adsorption on the CMS were studied by using the adsorption equilibrium of five pure gases measured at three different temperatures and their physical properties. Since the diffisional time constants of all the components showed much stronger dependence of pressure than those expected by the traditional Darken relation, a structural diffusion model was applied to predict the strong pressure dependence. The proposed model successfully predicted the diffisional time constant up to high pressure on the CMS.
Databáze: OpenAIRE