| 用晶格模型预测多组元固液界面上的吸附平衡 |
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| 引用本文： | 韩振为 周明. 用晶格模型预测多组元固液界面上的吸附平衡[J]. 化工学报, 1996, 47(1): 1-7 |
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| 作者姓名： | 韩振为 周明 |
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| 作者单位： | 天津大学化学工程研究所!天津300072,天津大学化学工程研究所!天津300072,天津大学化学工程研究所!天津300072 |
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| 摘 要： | 在晶格模型基础上，提出了预测多组元液体混合物在能量非均匀固体表面上吸附平衡的新方法，得到了吸附相活度系数表达式，计算多组元固液吸附平衡只需二元体系参数．对于硅胶自苯-甲苯-环己烷溶液、活性炭自苯-乙醇-环己烷溶液和活性炭自苯-乙酸乙酯-环已烷溶液中的吸附等3个三元体系，用本文方法进行了计算，预测结果令人满意．
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| 关 键 词： | 固液吸附 吸附平衡 晶格模型 固液界面 |
PREDICTION OF ADSORPTION EQUILIBRIA OF MULTICOMPONENT LIQUID MIXTURE ON SOLIDS BY LATTICE MODEL |
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| Han Zhenwei,Zhou Ming,Yu Guocong. PREDICTION OF ADSORPTION EQUILIBRIA OF MULTICOMPONENT LIQUID MIXTURE ON SOLIDS BY LATTICE MODEL[J]. Journal of Chemical Industry and Engineering(China), 1996, 47(1): 1-7 |
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| Authors: | Han Zhenwei Zhou Ming Yu Guocong |
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| Abstract: | A new method for the prediction of adsorption equilibria of a multicomponent liquid mixture on heterogeneous solid surfaces is proposed on the basis of the lattice model.Equations for adsorbed-phase activity coefficients are obtained by taking the energetic heterogeneity effects of solid surfaces into account.Only the binary parameters are needed for the calculation of the equilibrium of multicomponent adsorption.The adsorption equilibria of benzene-toluene-cyclohexane on silica gel,benzene-ethanol-cyclohexane on activated carbon and benzene-ethyl acetate-cyclohexane on activated carbon are calculated by the method and the theoretical results agree well with the experimental data. |
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| Keywords: | multicomponent 1iquid-solid adsorption adsorption equilibrium energetic heterogeneity of surface |
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