Isobaric vapor-liquid equilibria of alkyl carbonates with alcohols

被引：60

作者：

Luo, HP ^{[1
]}

Xiao, WD ^{[1
]}

Zhu, KH ^{[1
]}

机构：

[1] E China Univ Sci & Technol, UNILAB Res Ctr Chen React Engn, Shanghai 200237, Peoples R China

来源：

FLUID PHASE EQUILIBRIA | 2000年 / 175卷 / 1-2期

关键词：

vapor-liquid equilibria; activity coefficient; dimethyl carbonate; dialkyl carbonate; UNIFAC; carbonate group;

D O I：

10.1016/S0378-3812(00)00444-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, isobaric vapor-liquid equilibria (VLE) have been experimentally measured for the several binary systems: methanol + dimethyl carbonate (DMC), ethanol + DMC, ethanol + diethyl carbonate (DEC), DMC + DEC, and ethanol + ethyl methyl carbonate (EMC). Thermodynamic consistencies of these experimental data are verified with the statistic method developed by Hu et al. [J. East China Inst. Chem. Technol. (in Chinese) 10 (2) 1984 205] Interaction parameters related to the carbonate group (-OCOO-) in UNIFAC model have been determined using the VLE data, with that of -CH2-/-OCOO- being huge up to 3.31 x 10(5), implying a rather strong nonideality of the systems involving alkanes and alkyl carbonates. The experimental results in this work as well as those by other contributors agree excellently with the calculated ones using the newly correlated UNIFAC parameters. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：91 / 105

页数：15

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