SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 43 ›› Issue (3): 370-377.DOI: 10.1016/j.cjche.2021.02.014

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3D multiphase flow simulation of Marangoni convection on reactive absorption of CO2 by monoethanolamine in microchannel

Shuai Chen, Jiahong Lan, Yu Zhang, Jia Guo, Zhikai Cao, Yong Sha   

  1. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
  • 收稿日期:2020-12-24 修回日期:2021-02-24 出版日期:2022-03-28 发布日期:2022-04-28
  • 通讯作者: Yong Sha,E-mail:ysha@xmu.edu.cn
  • 基金资助:
    The authors acknowledge financial support provided by National Natural Science Foundation of China (21978243).

3D multiphase flow simulation of Marangoni convection on reactive absorption of CO2 by monoethanolamine in microchannel

Shuai Chen, Jiahong Lan, Yu Zhang, Jia Guo, Zhikai Cao, Yong Sha   

  1. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
  • Received:2020-12-24 Revised:2021-02-24 Online:2022-03-28 Published:2022-04-28
  • Contact: Yong Sha,E-mail:ysha@xmu.edu.cn
  • Supported by:
    The authors acknowledge financial support provided by National Natural Science Foundation of China (21978243).

摘要: A multiphase flow 3D numerical simulation method employing the coupled volume of fluid (VOF) and level set model is established to study the reactive absorption of CO2 by the monoethanolamine (MEA) aqueous solution in a falling film microchannel. Based on the flow-reaction-mass transfer model of the MEA-CO2 system in the falling film microchannel, the enhancement effect of the Marangoni convection in this reactive absorption process is analyzed. The enhancement factor of the Marangoni convection obtained in this work is in good agreement with experimental results in the literature. With consideration of the absorption ratio as well as the enhancement effect of the Marangoni convection, the influence of different MEA concentrations on absorption of CO2 is investigated. Furthermore, the appropriate MEA concentration for absorption enhanced by the Marangoni convection is acquired.

关键词: Numerical simulation, Microchannel, Falling film, Marangoni convection, MEA-CO2

Abstract: A multiphase flow 3D numerical simulation method employing the coupled volume of fluid (VOF) and level set model is established to study the reactive absorption of CO2 by the monoethanolamine (MEA) aqueous solution in a falling film microchannel. Based on the flow-reaction-mass transfer model of the MEA-CO2 system in the falling film microchannel, the enhancement effect of the Marangoni convection in this reactive absorption process is analyzed. The enhancement factor of the Marangoni convection obtained in this work is in good agreement with experimental results in the literature. With consideration of the absorption ratio as well as the enhancement effect of the Marangoni convection, the influence of different MEA concentrations on absorption of CO2 is investigated. Furthermore, the appropriate MEA concentration for absorption enhanced by the Marangoni convection is acquired.

Key words: Numerical simulation, Microchannel, Falling film, Marangoni convection, MEA-CO2