Vapor-liquid equilibrium for propylene glycols binary systems: Experimental data and regression

被引：7
作者：
Fendu, Elena M. [1 ]
Oprea, Florin [1 ]
机构：
[1] Petr Gas Univ, Petr Proc & Environm Engn Dept, Ploiesti 100680, Romania
来源：
FLUID PHASE EQUILIBRIA | 2014年 / 382卷
关键词：
VLE; Monopropylene glycol; Dipropylene glycol; Tripropylene glycol; Tetrapropylene glycol; NRTL EQUATION; WATER; MIXTURES;
D O I：
10.1016/j.fluid.2014.09.015
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Vapor-liquid equilibrium (VLE) data are reported for five binary systems involving propylene glycols. VLE data have been measured in the temperature range of 350.15-510.15 K and pressure up to 34.374 kPa for the binary systems: 1,2-propanediol (monopropylene glycol, MPG) + 2-[2-(2-hydroxypropoxy) propoxy] propan-l-ol (tripropylene glycol, TPG), MPG + 2-(2-[2-(2 hydroxypropoxy) propoxy]propoxy) propan-1-ol (tetrapropylene glycol, TePG), 1-(2-hydroxypropoxy) propan-2-ol (dipropylene glycol, DPG) + TPG, DPG +TePG,and TPG +TePG. These experimental data are obtained using an equilibrium apparatus build in our laboratory. For the binary system MPG + DPG there are VLE data available in literature. The experimental data obtained were correlated using the NRTL model. These VLE data are essential for the process design in order to separate propylene glycols mixtures by distillation. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：244 / 253
页数：10
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