VAPOR-LIQUID EQUILIBRIA BY EXTENDED SOAVE EQUATION OF STATE |
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Authors: | WANG Qi CHEN Genghua HAN Shijun Kwang-Chu Chao |
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Affiliation: | Department of Chemistry, Zhejiang University, Hangzhou 310027, China School of Chemical Engineering, Purdue University, W. Lafayette, IN 47907, USA |
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Abstract: | The Soave[1]equation of state is extensively accepted because of its accuracy andsimplicity.In 1988,Tan et al.[2]suggested a modification by introducing atemperature-dependent factor to parameter"b"on the basis of statistical meaning,anda good accuracy was obtained for supercritical fluids as well as fluids approaching criti-cal conditions but not for mixtures.In the previous work,an extended Soave equa-tion of state[3]has been proposed to improve the prediction of liquid density.In thispaper,the extended equation is used to calculate vapor-liquid equilibria of mixtures atsubcritical conditions. |
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Keywords: | equation of state vapor-liquid equilibria
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