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    题名: An analytical study of laminar concurrent flow membrane absorption through a hollow fiber gas-liquid membrane contactor
    作者: Chii-Dong Ho;Yun-Jen Sung;Yu-Chuan Chuang
    关键词: Membrane gas absorption;Conjugated Graetz problem;Mass transfer;Mathematical modeling;Hollow fiber module
    日期: 2013-02
    上传时间: 2020-03-07 12:10:39 (UTC+8)
    出版者: Elsevier
    摘要: The performance on mass transfer for a membrane gas absorption process was investigated theoretically and experimentally in the present study. Physical absorption of carbon dioxide by water was carried out and illustrated to validate the theoretical predictions. A two-dimensional mathematical formulation was developed in a hollow fiber gas–liquid membrane contactor with gas and liquid flow rates regulated independently. The resultant partial differential equations, as referred to conjugated Graetz problems, were solved analytically using the separated variable method associated with an orthogonal expansion technique. The absorption efficiency was studied with the absorbent flow rate, gas feed flow rate and CO2 concentration in the gas feed as parameters. Both good qualitative and quantitative agreements were found between the theoretical predictions and experimental results. The accuracy of the theoretical predictions for concurrent flow in hollow fiber gas–liquid membrane contactor is 5.18×10−2≤E≤7.21×10−2.
    關聯: J. Membrane Sci 428, p.232-240
    DOI: 10.1016/j.memsci.2012.10.047
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

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