Phase equilibria for the ternary systems ethanol, water plus ethylene glycol or plus glycerol at 101.3 kPa

被引：30

作者：

Pla-Franco, Jordi ^{[1
]}

Lladosa, Estela ^{[1
]}

Loras, Sonia ^{[1
]}

Monton, Juan B. ^{[1
]}

机构：

[1] Univ Valencia, Escuela Tecn Super Ingn, Dept Ingn Quim, E-46100 Valencia, Spain

来源：

FLUID PHASE EQUILIBRIA | 2013年 / 341卷

关键词：

Vapour-liquid equilibria; Water; Ethanol; Ethylene glycol; Glycerol; VAPOR-LIQUID-EQUILIBRIA; EXTRACTIVE DISTILLATION; DEHYDRATION; OPTIMIZATION; SEPARATION; PERVAPORATION; ADSORPTION; SIMULATION; MIXTURES; DESIGN;

D O I：

10.1016/j.fluid.2012.12.022

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Two solvents, ethylene glycol and glycerol, are proposed as possible entrainers for the extractive distillation of the binary azeotropic mixture formed by ethanol and water. In this way, consistent isobaric vapour-liquid equilibrium data at 101.3 kPa were measured for the ternary systems ethanol+water+ethylene glycol and ethanol+water+glycerol. The data were correlated by local compositions models Wilson, NRTL and UNIQUAC. Parameters of these models were later employed to evaluate ability of the candidates to break the original azeotrope. The obtained results led to consider the ethylene glycol and the glycerol as valid entrainers for the extractive distillation process of ethanol and water. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：54 / 60

页数：7

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