Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (1): 117.

• Articles • Previous Articles     Next Articles

Differential Model of Benzene Absorption in a Hollow Fiber Membrane Contactor by N-Formylmorpholine

XU Jun, LI Rui, WANG Lian-Jun*, LI Jian-Sheng, SUN Xiu-Yun   

  1. College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2009-03-09 Online:2010-01-10 Published:2010-01-10
  • Contact: WANG Lian-Jun. E-mail: wanglj@mail.njust.edu.cn
  • Supported by:

    高等学校博士学科点专项基金(批准号: 206028808)资助.

Abstract:

A differential equations mathematical model was developed for the transport of benzene through hollow fiber membrane in the presence of an aqueous N-formylmorpholine(NFM) solution. The model was based on “non-wetted mode” and the laminar parabolic velocity profile was used for the gas flow in the tube side, whereas, the liquid flow in the shell side was characterized by Happel′s free surface model. The effects of various factors such as gas and liquid flow rates, gas and liquid feeding concentration, flow pattern, membrane inner radius and membrane number on mass transfer were simulated. Moreover, the simulation results were validated with the experimental data and it was found the simulation result agreed with the experimental data well.

Key words: Membrane absorption; Differential model; Benzene; N-Formylmorpholine

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