화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.8, No.3, 276-282, May, 2002
Export Citation
Modeling of Facilitated Transport in Solid Membranes Containing Various Fixed Site Carriers
Jung Yong Kim, Seong Uk Hong, Hak-Kil Kim1, and Yong Soo Kang†
  • Center for Facilitated Transport Membranes, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea
  • 1Enbionet Co. Ltd, 751-6 Yeoksam-dong, Kangnam-ku, Seoul 135-080, Korea
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The extended series resistor-capacitor (RC) circuit model was developed to account for the effects of various kinds of carriers incorporated in the solid membranes on a facilitated mass transport. The sensitivity analysis based on the arbitrarily chosen reference state shows the degree of sensitivity as follows: the extent of pressure fluctuation > the number of hypothetical layers > the ratio of the total carrier concentration to the solute solubility by Henry's law ≒ the time scale ratio of diffusion to chemical reaction > the combining driving force for facilitated transport. Furthermore, the model can describe multiple diffusional pathways from 4 to infinity depending on the number of different types of carriers, which can occurs in a real system.
Keywords:facilitated transport;RC circuit model;various carriers;fixed site carrier membranes
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