Measurement and correlation of liquid-liquid equilibria for ternary systems {cyclooctane plus aromatic hydrocarbon+1-ethyl-3-methylpyridinium ethylsulfate} at T=298.15 K and atmospheric pressure

被引：39

作者：

Gonzalez, Emilio J. ^{[1
]}

Calvar, Noelia ^{[2
]}

Gonzalez, Begona ^{[1
]}

Dominguez, Angeles ^{[1
]}

机构：

[1] Univ Vigo, Dept Ingn Quim, Vigo 36310, Spain

[2] Univ Porto, Lab Separat & React Engn, Dept Engn Quim, Fac Engn, P-4200465 Oporto, Portugal

来源：

FLUID PHASE EQUILIBRIA | 2010年 / 291卷 / 01期

关键词：

LLE; EMpy][ESO4; Ionic liquid; Cyclooctane; Aromatic; IONIC LIQUID; BENZENE PLUS; MIXTURES; HYDROCARBONS; SEPARATION; ALKANES; TETRAFLUOROBORATE; TEMPERATURES; ENTHALPIES; EXTRACTION;

D O I：

10.1016/j.fluid.2009.12.019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work reports liquid-liquid equilibrium (LLE) results for the ternary systems {cyclooctane + benzene + 1-ethyl-3-methylpyridinium ethylsulfate}, {cyclooctane + toluene + 1-ethyl-3-methylpyridinium ethylsulfate}, and {cyclooctane + ethylbenzene + 1-ethyl-3-methylpyridinium ethylsulfate} at T=298.15K and under atmospheric pressure. The selectivity, percent removal of aromatic, and distribution coefficient ratio, derived from the tie-line data, were calculated to determine if this ionic liquid is a good solvent for the extraction of aromatics from cyclooctane. The phase diagrams for the ternary systems are shown, and the tie-lines correlated with the NRTL model have been compared with the experimental data. The consistency of the experimental LLE data was ascertained using the Othmer-Tobias and Hand equations. No data for mixtures presented here have been found in the literature. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：59 / 65

页数：7

共 28 条

[1] Liquid-liquid equilibrium of ternary systems of cyclohexane plus (benzene, plus toluene, plus ethylbenzene, or plus o-xylene)+4-methyl-N-butyl pyridinium tetrafluoroborate ionic liquid at 303.15 K [J].