| 无限稀释活度系数的预测模型 |
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| 引用本文： | 刘洪勤 高崇侠. 无限稀释活度系数的预测模型[J]. 高校化学工程学报, 1996, 10(1): 8-15 |
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| 作者姓名： | 刘洪勤 高崇侠 |
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| 作者单位： | 北京化工大学化工系 |
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| 摘 要： | 全面比较了几种常用模型对各类体系的无限稀释活度系数的预测结果，讨论了各模型适用范围和优缺点。针对现有模型的不足，对烃类体系提出了改进模型，与已有模型相比，新模型型具有简单易用、且精度较高的优点。
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| 关 键 词： | 无限稀释 活度系数 预测模型 UNIFAC模型 |
Prediction Models for Infinite Dilution Activity Coefficients of Solutions |
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| Liu Hongqin Gao Chongxia Zhao Xinliang. Prediction Models for Infinite Dilution Activity Coefficients of Solutions[J]. Journal of Chemical Engineering of Chinese Universities, 1996, 10(1): 8-15 |
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| Authors: | Liu Hongqin Gao Chongxia Zhao Xinliang |
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| Abstract: | The predicted results for infinite dilution activeity coefficients of diverse liquid solutions were compared each other. The models used for comparison were four UNIFAC and its modification models, MOSCED model, and p FV modle. It was found that the modified UNIFAC model by Weidlich and Gmehling (1989,1993) gave the best results. Furthermore, two new models for activity coefficient at infinite dilution proposed by the authors were presented also in this paper, one for hydrocarbon hydrocarbon system, and other for hydrocarbon water system. These two models were proved to be simpler to use, and give higher accuracy as compared with the sample models mentioned in this paper. |
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| Keywords: | Infinite dilution activity coefficient UNIFAC Hydrocarbon system Aqueous system Regular solution theory |
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