中空纤维多孔膜基气体吸收传质性能研究

张秀莉;张卫东;张泽廷*

北京化工大学学报(自然科学版) ›› 2004, Vol. 31 ›› Issue (3) : 4-8.

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北京化工大学学报(自然科学版) ›› 2004, Vol. 31 ›› Issue (3) : 4-8.
研究论文

中空纤维多孔膜基气体吸收传质性能研究

  • 张秀莉;张卫东;张泽廷*
作者信息 +

Mass transfer performance of gas absorption in hollow fiber porous membrane module

  • Zhang Xiu-li;Zhang Wei-dong;Zhang Ze-ting
Author information +
文章历史 +

摘要

气相传质阻力是中空纤维多孔膜基气体化学吸收过程中的主要传质阻力。文中采用聚丙烯中空纤维膜组件、CO2-空气-水和CO2-空气-NaOH水溶液两种体系对膜基气体吸收过程的传质性能进行了研究。测定了不同气速和液速条件下的总传质系数。根据气液反应理论对实验结果进行分析,由实验和理论计算获得了气相分传质系数。通过进一步的拟合计算获得中空纤维多孔膜管内气相传质数学关联式Sh =0.0038Re0.44Sc0.33.用此关联式计算得到的总传质系数与实验测得的结果进行了比较,一致性良好.

Abstract

The resistance of gas phase is the major resistance in a membrane based gas absorption process. The mass transfer performance was studied for this process in polypropylene hollow fiber membrane module. The experimental systems were CO2-air-water and CO2-air-NaOH aqueous. The overall mass transfer coefficients were tested at various gas and liquid flow velocities. Based on the analysis of the experimental results by the gas liquid reaction theory, the mass transfer coefficients in gas phase were determined.The mathematical correction,Sh=0.0038Re0.44Sc0.33,of mass tranfer coefficient of gas phase in hollow fiber membrane lumen was obtained through regression.The results from the model were in good agreement with the experimental data.

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导出引用
张秀莉;张卫东;张泽廷*. 中空纤维多孔膜基气体吸收传质性能研究[J]. 北京化工大学学报(自然科学版), 2004, 31(3): 4-8
Zhang Xiu-li;Zhang Wei-dong;Zhang Ze-ting. Mass transfer performance of gas absorption in hollow fiber porous membrane module[J]. Journal of Beijing University of Chemical Technology, 2004, 31(3): 4-8

参考文献

[1] 时钧,袁权,高从堦. 膜技术手册[M]. 北京: 化工大学出版社. 2001
[2] Richard W B. Membrane lechnolonv and applications [M]. New York: McGraw-Hill Co. 2000
[3] Gabelman A, H wanng S.Hollow fiber menbrane contactors[J]. J Membr Sci, 1999. 159: 61一106
[4] 袁力,土志,土世昌.膜吸收技术及其在脱除酸性气体中的应用研究[J]. 膜科学与技术.2002, 22( 4): 55- 70
[5] Dahuron L, Cussler E L. Protein exLracLions with hollow fiber[J]. AIChE J, 1988, 34: 130一136
[6] Prasad R, Sirkar K K. Dispersion-fret solvent extraction with microporous hollow fiber modules[J]. AIChE J, 1988, 34: 177一188
[7] Lipnizki F, Field R W. Mass Lransfer performance for hollow fiber modules with shell side axial fend flow:usiing an enaineerina approach to develop a framework[J]. J Memhr Sci, 2001, 193: 195一208
[8] Wu J, Chen V. Shell side mass Lransfer performance of randomly packed hollow fiber models[ J]. J Memhr Sci, 2000, 172: 59一74

[9] Huseni A R. Ahsorplion of carbon dioxide into aqueous solutions usinn hollow fiber membrane conlaclors[ J]. J Memhr Sci, 1996, 112: 229一240
[10] Cooney D C, Jackson C C. Gas absorption in a holow fiber device[J]. Chen Eng Commun, 1989, 79:153-179
[11] 姜信真.气液反应理论与应用基础[M].北京:烃加出版社,1990
[12] M anon E A, Malinauskas A P.Gas transport in porous media; The dusty-gas model[M]. New York; Elsevier, 1983
[13] Zhann X L, Zhann W D, Zhann Z T.et al.Mathe-magical model of perme}Lion Lhrouah PTFE porous membrane and the effect of membrane pore slruclure[J]. Chinese J of Chem Eng, 2003,11(4):383一387
[14] Kumar P S, Honendoorn J A, Feron P H M.et al. Approximate solution to predict the enhancement factor for the reactive absorption of a gas in a liquid flowing through a microporous membrane hollow fiber[J]. J Membr Sci,2003,213: 231一245
[15] Cussler E L, Diffusion: Mass Lransfer in fluid svstems[M]. 2nd ed. New York: Cambridge University Press, 1997







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