Phase equilibria in the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane

Ricardo Reich; Marcela Cartes; Jaime Wisniak; Hugo Segura

doi:10.1016/S0378-3812(98)00420-8

Phase equilibria in the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane

Ricardo Reich, Marcela Cartes, Jaime Wisniak, Hugo Segura

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane. The results indicate that the system deviates positively from ideality and that no azeotrope is present. The ternary system were predicted with the composition by the Redlich-Kister, Wilson, NRTL, UNIQUAC and UNIFAC models using only the parameters of the constituent binaries. Most of the models allow a very good prediction of the phase equilibrium of the ternary system. In addition, the Wisniak-Tamir relations were used for correlating bubble- point temperatures.

Original language	English
Pages (from-to)	99-108
Number of pages	10
Journal	Fluid Phase Equilibria
Volume	154
Issue number	1
DOIs	https://doi.org/10.1016/S0378-3812(98)00420-8
State	Published - 4 Jan 1999

Keywords

ETBE
Ethers
Fuel oxygenating additives
Unleaded gasoline
Vapor-liquid equilibrium

ASJC Scopus subject areas

General Chemical Engineering
General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0378-3812(98)00420-8

Cite this

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title = "Phase equilibria in the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane",

abstract = "Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane. The results indicate that the system deviates positively from ideality and that no azeotrope is present. The ternary system were predicted with the composition by the Redlich-Kister, Wilson, NRTL, UNIQUAC and UNIFAC models using only the parameters of the constituent binaries. Most of the models allow a very good prediction of the phase equilibrium of the ternary system. In addition, the Wisniak-Tamir relations were used for correlating bubble- point temperatures.",

keywords = "ETBE, Ethers, Fuel oxygenating additives, Unleaded gasoline, Vapor-liquid equilibrium",

author = "Ricardo Reich and Marcela Cartes and Jaime Wisniak and Hugo Segura",

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T1 - Phase equilibria in the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane

AU - Reich, Ricardo

AU - Cartes, Marcela

AU - Wisniak, Jaime

AU - Segura, Hugo

N1 - Funding Information: This work was financed by FONDECYT, Chile, project No. 1960583. Graciela Galindo helped in the experimental part.

PY - 1999/1/4

Y1 - 1999/1/4

N2 - Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane. The results indicate that the system deviates positively from ideality and that no azeotrope is present. The ternary system were predicted with the composition by the Redlich-Kister, Wilson, NRTL, UNIQUAC and UNIFAC models using only the parameters of the constituent binaries. Most of the models allow a very good prediction of the phase equilibrium of the ternary system. In addition, the Wisniak-Tamir relations were used for correlating bubble- point temperatures.

AB - Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane. The results indicate that the system deviates positively from ideality and that no azeotrope is present. The ternary system were predicted with the composition by the Redlich-Kister, Wilson, NRTL, UNIQUAC and UNIFAC models using only the parameters of the constituent binaries. Most of the models allow a very good prediction of the phase equilibrium of the ternary system. In addition, the Wisniak-Tamir relations were used for correlating bubble- point temperatures.

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KW - Ethers

KW - Fuel oxygenating additives

KW - Unleaded gasoline

KW - Vapor-liquid equilibrium

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U2 - 10.1016/S0378-3812(98)00420-8

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Phase equilibria in the ternary system hexane + ethyl 1,1-dimethylethyl ether + heptane

Abstract

Keywords

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