ADSORPTION DYNAMICS OF MACROPOROUS POLYMERIC ADSORBENT I.The Studies on the Particle Diffusion Mass-Transfer Process  

作　　者：WANG Chunhong XU Mingcheng SHI Zuoqing FAN Yunge JI Chengjie 

机构地区：[1]Institute of Polymer Chemistry, Nankai University ,Tianjin, 300071

出　　处：《Chinese Journal of Reactive Polymers》2000年第1期81-89,共9页中国反应性高分子（英文版）

摘　　要：The adsorption dynamics for phenol in aqueous solution of the adsorbent based on polystyrene was studied. In order to distinguish with the Boyd quasi-homogeneous model of the inner structure of ion-exchanger, the particle diffusion model including surface diffusion model and pore diffusion model was suggested which is suitable to the macroporous adsorbent. The diffusiondetermination step of the adsorption process was established and the effective diffusion coefficient was also determined. The influence of surface diffusion and pore diffusion on the particle diffusion rate was investigated qualitatively. All of these were very important to improve the structure of the macroporous adsorbent in order to improve the mass-transfer rate.The adsorption dynamics for phenol in aqueous solution of the adsorbent based on polystyrene was studied. In order to distinguish with the Boyd quasi-homogeneous model of the inner structure of ion-exchanger, the particle diffusion model including surface diffusion model and pore diffusion model was suggested which is suitable to the macroporous adsorbent. The diffusiondetermination step of the adsorption process was established and the effective diffusion coefficient was also determined. The influence of surface diffusion and pore diffusion on the particle diffusion rate was investigated qualitatively. All of these were very important to improve the structure of the macroporous adsorbent in order to improve the mass-transfer rate.

关 键 词：Adsorption Dynamics. Particle Diffusion Surface Diffusion Particle Diffusion Diffusion Coefficient 

分 类 号：TQ424.3[化学工程]