Simulation of gas-solid adsorption process considering particle-size distribution  

作　　者：Jihui Li Bingjian Zhang Yidan Shu 

机构地区：[1]School of Materials Science and Engineering,Sun Yat-sen University,Guangzhou 510006,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第2期331-342,共12页中国化学工程学报（英文版）

基　　金：Financial support from the National Natural Science Foundation of China (21706075)。

摘　　要：The particle-size distribution of adsorbents usually plays an important role on the adsorption performance. In this study, population balance equation(PBE) is utilized in the simulation of an adsorption process to model the time-dependent adsorption amount distribution on adsorbent particles of a certain size distribution. Different adsorption kinetics model can be used to build the adsorption rate function in PBE according to specific adsorption processes. Two adsorption processes, including formaldehyde on activated carbon and CO_(2)/N_(2)/CH_(4) mixture on 4A zeolite are simulated as case studies, and the effect of particle-size distribution of adsorbent is analyzed. The simulation results proved that the influence of particle-size distribution is significant. The proposed model can help consider the influence of particlesize distribution of adsorbents on adsorption processes to improve the prediction accuracy of the performance of adsorbents.

关 键 词：ADSORPTION Population balance equations Particle-size distribution 

分 类 号：TQ424[化学工程]