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

doi:10.1016/j.cjche.2021.02.014

Abstract

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

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

Shuai Chen, Jiahong Lan, Yu Zhang, Jia Guo, Zhikai Cao, Yong Sha. 3D multiphase flow simulation of Marangoni convection on reactive absorption of CO₂ by monoethanolamine in microchannel[J]. Chinese Journal of Chemical Engineering, 2022, 43(3): 370-377.

References

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

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

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