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��ѧ��ҵ�빤�� 2007, Vol. 24 Issue (3) :203-206    DOI:
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Gas-Liquid Interphase Mass Transfer Theory of Absorption Processes
GAO Xi-qun~(1,2),ZHU Chun-ying~1,MA You-guang~1,YU Guo-cong~1(1.School of Chemical Engineering and Technology,State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300072,China;2.Yinghua Economy and Development Co.,Liaoyang Petro-chemical Fibre Co.,Liaoyang 111003,Liaoning Province,China)
(1,2),ZHU Chun-ying~1,MA You-guang~1,YU Guo-cong~1(1.School of Chemical Engineering and Technology,State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300072,China;2.Yinghua Economy and Development Co.,Liaoyang Petro-chemical Fibre Co.,Liaoyang 111003,Liaoning Province,China

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Abstract�� The present paper aims at the understanding on the gas-liquid mass transfer mechanism of absorption process.On the basis of molecule thermodynamics,combining the general chemical potential driving force equation of mass transfer flux,a concentration corrrelation at interface between two phases is derived and solved under different bulk liquid concentrations in absorption process.The computational results show that the interfacial concentration of absorbed component on liquid side is strongly affected by a Biot number Yo and is also bulk concentration dependent.For the absorption process in which the gas phase resistance to mass transfer between two phases is neglectable,the mass transfer rate is mainly dominated by liquid bulk concentration and thickness of liquid film.The CO_2 interfacial concentration on liquid side in stationary absorption by pure methanol,ethanol and n-propanol absorbent respectively are measured using micro laser holographic interference technique to validate the model proposed,the experimental values are in good agreement with the calculated ones.
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Received 2007-05-15; published 2007-05-15
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��ϰȺ;�촺Ӣ;���ѹ�;�����;.���չ��̵Ľ����ƽ�⴫�ʻ���[J].  ��ѧ��ҵ�빤��, 2007,24(3): 203-206
GAO Xi-qun~.Gas-Liquid Interphase Mass Transfer Theory of Absorption Processes[J].  Chemcial Industry and Engineering, 2007,24(3): 203-206
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