Liquid-Liquid Equilibria of Ternary Systems cis-1,2-Dimethylcyclohexane + Toluene + Sulfolane

doi:10.1016/j.cjche.2013.05.003

›› 2014, Vol. 22 ›› Issue (11/12): 1298-1301.DOI: 10.1016/j.cjche.2013.05.003

Liquid-Liquid Equilibria of Ternary Systems cis-1,2-Dimethylcyclohexane + Toluene + Sulfolane

Xiaoyan Sun, Shuguang Xiang

The Institute for Process System Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

收稿日期:2013-01-06 修回日期:2013-05-15 出版日期:2014-12-28 发布日期:2014-12-24
通讯作者: Shuguang Xiang
基金资助:
Supported by the National Natural Science Foundation of China (21176127).

Liquid-Liquid Equilibria of Ternary Systems cis-1,2-Dimethylcyclohexane + Toluene + Sulfolane

Xiaoyan Sun, Shuguang Xiang

The Institute for Process System Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

Received:2013-01-06 Revised:2013-05-15 Online:2014-12-28 Published:2014-12-24
Supported by:
Supported by the National Natural Science Foundation of China (21176127).

摘要/Abstract

摘要： Liquid-Liquid Equilibrium (LLE) data for three Ternary Systems comprising cis-1,2-dimethylcyclohexane + toluene + sulfolane were measured at 298.15, 313.15 and 328.15 K under atmospheric pressure. The phase diagrams for the ternary systems were presented. The reliability of the experiment data was tested using the Othmer-Tobias correlation. The LLE data were then correlated with the universal functional activity coefficient for liquid-liquid systems (UNIF-LL) and non-random two liquid using dataset 2 (NRTL/2) activity coefficient models to obtain the binary interaction parameters as programmed by the Aspen Plus simulation. The results showed that the experimental data were satisfactorily represented by both the UNIF-LL and the NRTL/2 models as revealed from the very small values of the root mean square error and the absolute deviation in composition.

关键词: Liquid-liquid equilibria, Universal functional activity coefficient, Non-random two liquid

Abstract: Liquid-Liquid Equilibrium (LLE) data for three Ternary Systems comprising cis-1,2-dimethylcyclohexane + toluene + sulfolane were measured at 298.15, 313.15 and 328.15 K under atmospheric pressure. The phase diagrams for the ternary systems were presented. The reliability of the experiment data was tested using the Othmer-Tobias correlation. The LLE data were then correlated with the universal functional activity coefficient for liquid-liquid systems (UNIF-LL) and non-random two liquid using dataset 2 (NRTL/2) activity coefficient models to obtain the binary interaction parameters as programmed by the Aspen Plus simulation. The results showed that the experimental data were satisfactorily represented by both the UNIF-LL and the NRTL/2 models as revealed from the very small values of the root mean square error and the absolute deviation in composition.

Key words: Liquid-liquid equilibria, Universal functional activity coefficient, Non-random two liquid

Xiaoyan Sun, Shuguang Xiang . Liquid-Liquid Equilibria of Ternary Systems cis-1,2-Dimethylcyclohexane + Toluene + Sulfolane[J]. , 2014, 22(11/12): 1298-1301.

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Liquid-Liquid Equilibria of Ternary Systems cis-1,2-Dimethylcyclohexane + Toluene + Sulfolane

Liquid-Liquid Equilibria of Ternary Systems cis-1,2-Dimethylcyclohexane + Toluene + Sulfolane

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