Isobaric Vapor-Liquid Equilibrium for the Binary Systems of Diethyl Carbonate with Xylene Isomers and Ethylbenzene at 101.33 kPa

被引：8

作者：

Ding, Jiahai ^{[1
]}

Guan, Wei ^{[1
]}

Wan, Ping ^{[1
]}

Wang, Lei ^{[1
]}

Wan, Hui ^{[1
]}

Guan, Guofeng ^{[1
]}

机构：

[1] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Coll Chem Engn, Jiangsu Natl Synerget Innovat Ctr Adv Mat, Nanjing 210009, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2016年 / 61卷 / 11期

关键词：

UNIFAC GROUP-CONTRIBUTION; P-XYLENE; O-XYLENE; DIMETHYL CARBONATE; MIXTURES; 2-METHYL-1-BUTANOL; EXPRESSION; ACETATE; ENERGY;

D O I：

10.1021/acs.jced.6b00085

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Isobaric binary vapor liquid equilibrium (VLE) data for diethyl carbonate with ethylbenzene and xylene isomers are measured at 101.33 kPa by using a modified Rose still. The binary VLE data are tested to be thermodynamically consistent by the Herington method and the point-to-point test of the Fredenslund method. Taking account of the nonideality of the vapor phase, the activity coefficients of the components are calculated. All systems present a positive deviation from ideality. The experimental VLE data are well correlated by the nonrandom two-liquid (NRTL), universal quasichemical activity coefficient (UNIQUAC), and Wilson equations. The calculated vapor-phase compositions and temperature agree well with the experimental values. These experimental data can provide basic thermodynamic data for practical application in developing the distillation simulation of diethyl carbonate with ethylbenzene and xylene isomers.

引用

页码：3724 / 3729

页数：6

共 26 条

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