SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 54 ›› Issue (2): 331-342.DOI: 10.1016/j.cjche.2022.02.021

• Full Length Article • 上一篇    下一篇

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

Jihui Li, Bingjian Zhang, Yidan Shu   

  1. School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
  • 收稿日期:2021-11-25 修回日期:2022-01-28 出版日期:2023-02-28 发布日期:2023-05-11
  • 通讯作者: Yidan Shu,E-mail:shuyd@mail.sysu.edu.cn
  • 基金资助:
    Financial support from the National Natural Science Foundation of China (21706075). The authors would like to extend their gratitude to the anonymous reviewers whose constructive comments greatly helped in the improvement of the article.

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

Jihui Li, Bingjian Zhang, Yidan Shu   

  1. School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
  • Received:2021-11-25 Revised:2022-01-28 Online:2023-02-28 Published:2023-05-11
  • Contact: Yidan Shu,E-mail:shuyd@mail.sysu.edu.cn
  • Supported by:
    Financial support from the National Natural Science Foundation of China (21706075). The authors would like to extend their gratitude to the anonymous reviewers whose constructive comments greatly helped in the improvement of the article.

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 CO2/N2/CH4 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 particle-size 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

Abstract: 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 CO2/N2/CH4 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 particle-size distribution of adsorbents on adsorption processes to improve the prediction accuracy of the performance of adsorbents.

Key words: Adsorption, Population balance equations, Particle-size distribution