Experiment and modeling of vapor-liquid equilibria for H2O + CH3OH + KCl and H2O + CH3OH + NaBr systems

被引：16

作者：

Xu, Xianzhen ^{[1
]}

Zhou, Yu ^{[1
]}

Wang, Zonghua ^{[1
]}

Wang, Xi ^{[1
]}

机构：

[1] Qingdao Univ, Coll Chem Sci & Engn, Growing Base State Key Lab, Lab Fiber Mat & Modern Text, Qingdao 266071, Shandong, Peoples R China

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2018年 / 63卷

基金：

中国国家自然科学基金;

关键词：

Thermodynamic; Activity coefficient; Mixed solvent electrolyte; Vapor-liquid equilibrium (VLE); SOLVENT ELECTROLYTE SYSTEMS; EXCESS GIBBS ENERGY; ACTIVITY-COEFFICIENTS; AQUEOUS-SOLUTIONS; G(E) MODEL; PREDICTION; SINGLE; ALCOHOL;

D O I：

10.1016/j.calphad.2018.09.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this work, vapor-liquid equilibrium (VLE) data were reported on mixed solvent electrolyte systems containing H2O + CH3OH + KCl and H2O + CH3OH +NaBr. The measurements were carried out in a computer-controlled glass apparatus. A new model based on UNIQUAC equation was proposed for the correlation of vapor-liquid equilibria in mixed solvent electrolyte systems. The model for the excess Gibbs energy was modified from the UNIQUAC equation, and the activity coefficients were calculated by UNIQUAC terms and solvent-solution effect terms. In addition, an assumption for the solution effect was introduced into this model. Experiment and literature data for mixed solvent electrolyte systems were successfully correlated using the proposed model.

引用

页码：134 / 141

页数：8

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