A New Film Diffusion Controlling Kinetic Model for Adsorption at the Solid/Solution Interface

Iranian Journal of Chemistry & Chemical Engineering

Ali Akbar Amooey¹ 

[1] Department of Chemical Engineering, Faculty of Engineering, University of Mazandaran, Babolsar, I.R. IRAN;

关键词: adsorption;    kinetics;    film diffusion;   

DOI  :  10.30492/ijcce.2019.36715

来源: DOAJ

【 摘 要 】

A convenient adsorption kinetic equation has been offered for the modeling of adsorption kinetics in batch systems when diffusion taking parts to the rate-controlling step of adsorption. This model is suggested based on the Smoluchowski-Waite equation for diffusion-controlled second-order reactions. The proposed new model has better performance (lower absolute values of the relative errors (AARE) %) with respect to the pseudo-second-order. Results of this equation are in agreement with experiment data especially at the initial times of adsorption that diffusion contributes to the rate-controlling step of adsorption.

【 授权许可】

Unknown