Isobaric Vapor-Liquid Equilibrium for the Extractive Distillation of Acetonitrile plus Water Mixtures Using Dimethyl Sulfoxide at 101.3 kPa

被引：39

作者：

Zhang, Zhigang ^{[1
]}

Lv, Ming ^{[1
]}

Huang, Donghao ^{[1
]}

Jia, Peng ^{[1
]}

Sun, Dezhang ^{[1
]}

Li, Wenxiu ^{[1
]}

机构：

[1] Shenyang Univ Chem Technol, Liaoning Prov Key Lab Chem Separat Technol, Shenyang 110142, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2013年 / 58卷 / 12期

基金：

美国国家科学基金会;

关键词：

CONSISTENCY; EXPRESSION; ENERGY;

D O I：

10.1021/je400531a

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Vapor liquid equilibrium (VLE) data for the system formed by acetonitrile, water, and dimethyl sulfoxide (DMSO) at 101.3 kPa are measured in this paper. The data have been correlated by the classical thermodynamic models: Wilson, universal quasichemical activity coefficient (UNIQUAC), and nonrandom two-liquid (NRTL). The results indicate that all of the models can correlate the VLE data successfully and Wilson model performances the best. The effects of DMSO with various contents on the acetonitrile + water system are explored. From the results, the azeotrope is eliminated by DMSO by the means of improving their relative volatility. Hence, DMSO is an effective solvent for separating the acetonitrile + water binary azeotropic system.

引用

页码：3364 / 3369

页数：6

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