文献类型：期刊文献

英文题名：Thermodynamics in Separation for the Ternary System 1,2-Ethanediol+1,2-Propanediol+2,3-Butanediol

作者：Zhong, Yang[1];Wu, Yanyang[1];Zhu, Jiawen[1];Chen, Kui[1];Wu, Bin[1];Ji, Lijun[1]

机构：[1]E China Univ Sci & Technol, Chem Engn Res Ctr, Shanghai 200237, Peoples R China

年份：2014

卷号：53

期号：30

起止页码：12143

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20143218041042);WOS:【SCI-EXPANDED(收录号:WOS:000339694100028)】；

基金：The financial support of the National Natural Science Foundation of China (Grant No. 21106039) is gratefully acknowledged.

语种：英文

外文关键词：Distillation - Thermodynamic properties - Binary mixtures - Distillation columns - Phase equilibria

摘要：The thermodynamic data in distillation, i.e., isobaric vapor liquid equilibrium data, have been measured for the three binary systems of 1,2-ethanediol + 1,2-propanediol, 1,2-ethanediol + 2,3-butanediol, and 1,2-propanediol + 2,3-butanediol at 101.3 kPa. The accuracy of the experimental data was confirmed by both Herington test and Van Ness test. The thermodynamic properties of the vapor phase have been calculated with the Hayden-O'Connell equation in consideration of nonideality. The liquid activity coefficients have been satisfactorily correlated with the Wilson, NRTL, and UNIQUAC models, while the estimated results from the UNIFAC model are not satisfactory. The corresponding binary interaction parameters of the three models Wilson, NRTL, and UNIQUAC were calculated and used to obtain the residual curves of the ternary system 1,2-ethanediol + 1,2-propanediol + 2,3-butanediol. Based on all of the preceding results, a two-column distillation process has been designed to obtain the required products.