Experimental and predicted vapor-liquid equilibrium for binary systems with diethanolamine, m-cresol and p-cresol at 20.0 kPa

被引：5

作者：

Wang, Jun ^{[1
]}

Wang, Deyan ^{[1
]}

Huang, Chunxiang ^{[1
]}

Sun, Xueni ^{[1
]}

Yue, Xiaoyong ^{[1
]}

Shao, Hui ^{[1
]}

Leng, Yixin ^{[1
]}

机构：

[1] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou City 213143, Jiangsu, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2019年 / 130卷

基金：

中国国家自然科学基金;

关键词：

M-cresol; P-cresol; Diethanolamine; Vapour-liquid equilibrium; Chemistry theory; REFRACTIVE-INDEX; MIXTURES; DENSITY; EXPRESSION; PRESSURES; ENERGY;

D O I：

10.1016/j.jct.2018.09.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Isobaric vapour-liquid equilibrium (VLE) data for two binary systems of p-Cresol (PC) + diethanolamine (DEA) and m-Cresol (MC) + DEA were measured at 20.0 kPa. The Herington area method was used to check the binary VLE data, and the results showed good thermodynamic consistency. Meanwhile, the Wilson, NRTL, UNIQUAC models and the chemistry theory proposed by Dolezalek were used to correlate the VLE data. The binary energy interaction parameters for activity models, and reaction equilibrium constants for chemistry theory were obtained. With help of the parameters obtained in this work, the NRTL model was used to predict the VLE data of the two binary systems at the pressure of 8.33 kPa. The predictive results were compared with the literature's data. At same time, the excess Gibbs free energy for the two binary systems, and infinite dilution activity coefficients for MC and PC in DEA were estimated. The calculated results showed that the DEA had slightly stronger interaction with PC than MC. (C) 2018 Elsevier Ltd.

引用

页码：1 / 8

页数：8

共 44 条

[1] STATISTICAL THERMODYNAMICS OF LIQUID-MIXTURES - NEW EXPRESSION FOR EXCESS GIBBS ENERGY OF PARTLY OR COMPLETELY MISCIBLE SYSTEMS [J].