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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26661


    Title: A MODIFICATION OF THE WILSON EQUATION WITH ONLY BINARY PARAMETERS FOR TERNARY LIQUID-LIQUID EQUILIBRIA
    Authors: HUANG,JF;LEE,LS
    Contributors: 化學工程與材料工程學系
    Keywords: LOCAL COMPOSITION;SYSTEMS;MIXTURES;COEFFICIENTS;CYCLOHEXANE;PREDICTION;METHANOL;ENERGY;MODEL
    Date: 1994
    Issue Date: 2010-06-29 17:33:36 (UTC+8)
    Publisher: 中央大學
    Abstract: While predicting the liquid-liquid equilibria of Type I partially miscible ternary mixtures with the commonly used excess Gibbs energy models based on a local composition model such as UNIQUAC, it is found that noticeable discrepancies exist between the predicted and experimental values. To obtain a better prediction, a modified Wilson equation containing only two binary parameters and an empirical parameter k accompanying every constituent component is proposed in this paper. This empirical parameter plays an important role in the estimation of ternary LLE for systems including at least one water-nonpolar or alcohol-nonpolar constituent binary system. The equation can also be easily extended to multicomponent systems merely by using binary pair parameters. To test this model, the LLE of ten Type I ternary mixtures are estimated using only the parameters of three binary pairs. Comparisons are made with the experimental data from the literature, and the estimated results of the models of UNIQUAC and Wang and Chao (1983) [Wang, W. and Chao, K.C., 1983. Chem. Eng. Sci., 38: 483-1492] which are applicable to partially miscible mixtures.
    Relation: FLUID PHASE EQUILIBRIA
    Appears in Collections:[化學工程與材料工程研究所] 期刊論文

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