(Liquid plus liquid) equilibrium for the system {ethyl stearate(1) + ethanol(2) + glycerol(3)}

被引：15

作者：

Andrade, Eriel F. ^{[1
]}

Igarashi-Mafra, Luciana ^{[1
]}

Mafra, Marcos R. ^{[1
]}

Corazza, Marcos L. ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Chem Engn, BR-81531990 Curitiba, PR, Brazil

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2012年 / 47卷

关键词：

Biodiesel; Ethyl stearate; LLE; Ethanol; UNIFAC; NRTL; UNIQUAC; BIODIESEL PRODUCTION; PHASE-EQUILIBRIA; ETHANOL; GLYCEROL; FUEL; TRANSESTERIFICATION; MIXTURES; OIL;

D O I：

10.1016/j.jct.2011.10.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports the results of a new experimental study on the (liquid + liquid) equilibrium of the system {ethyl stearate(1) + ethanol(2) + glycerol(3)} at atmospheric pressure and at T = (313.15 and 323.15) K. The equilibrium compositions were measured by gas chromatography. Ternary diagrams were obtained for each temperature and the equilibrium data were compared to the system in the presence of salt (NaCl) at T = 323.15 K. The experimentally determined (liquid + liquid) equilibrium data were satisfactorily correlated with NRTL and UNIQUAC equations. A comparative analysis was performed using the UNIFAC-LLE group contribution method. From the results presented herein good predictions were obtained for this ternary system. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：213 / 218

页数：6

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