Isobaric vapor-liquid equilibria and densities for the system ethyl 1,1-dimethylethyl ether + 2-propanol

Hugo Segura; Andrés Mejía; Ricardo Reich; Jaime Wisniak; Sonia Loras

doi:10.1080/0031910029003269

Isobaric vapor-liquid equilibria and densities for the system ethyl 1,1-dimethylethyl ether + 2-propanol

Hugo Segura, Andrés Mejía, Ricardo Reich, Jaime Wisniak, Sonia Loras

Department of Chemical Engineering

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

6 Scopus citations

Abstract

Vapor-liquid equilibrium (VLE) data at 50, 75, and 94 kPa have been determined for the binary system ethyl 1,1-dimethylethyl ether + 2-propanol, in the temperature range 323-344 K. The measurements were made in an equilibrium still with circulation of both the vapor and liquid phases. Excess volumes have been also determined from density measurements at 298.15 K. The system exhibits positive deviation from ideal behavior and azeotropic behavior in the range of experimental pressures. The excess volume of the system is negative over the whole mole fraction range. The activity coefficients and boiling points of the solutions were well correlated with the mole fraction by the Wohl, Wilson, UNIQUAC, NRTL equations and predicted by the UNIFAC group contribution method. Excess volume data were correlated using the Redlich-Kister expansion.

Original language	English
Pages (from-to)	685-702
Number of pages	18
Journal	Physics and Chemistry of Liquids
Volume	40
Issue number	6
DOIs	https://doi.org/10.1080/0031910029003269
State	Published - 1 Dec 2002

Keywords

ETBE
Ether
Fuel oxygenating additive
Unleaded gasoline
Vapor-liquid equilibrium

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Physical and Theoretical Chemistry
Materials Chemistry

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10.1080/0031910029003269

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@article{d772b821d0814f75acaeca926854be65,

title = "Isobaric vapor-liquid equilibria and densities for the system ethyl 1,1-dimethylethyl ether + 2-propanol",

abstract = "Vapor-liquid equilibrium (VLE) data at 50, 75, and 94 kPa have been determined for the binary system ethyl 1,1-dimethylethyl ether + 2-propanol, in the temperature range 323-344 K. The measurements were made in an equilibrium still with circulation of both the vapor and liquid phases. Excess volumes have been also determined from density measurements at 298.15 K. The system exhibits positive deviation from ideal behavior and azeotropic behavior in the range of experimental pressures. The excess volume of the system is negative over the whole mole fraction range. The activity coefficients and boiling points of the solutions were well correlated with the mole fraction by the Wohl, Wilson, UNIQUAC, NRTL equations and predicted by the UNIFAC group contribution method. Excess volume data were correlated using the Redlich-Kister expansion.",

keywords = "ETBE, Ether, Fuel oxygenating additive, Unleaded gasoline, Vapor-liquid equilibrium",

author = "Hugo Segura and Andr{\'e}s Mej{\'i}a and Ricardo Reich and Jaime Wisniak and Sonia Loras",

note = "Funding Information: This work has been financed by FONDECYT, Chile, projects No. 1990402 and 7990065. Graciela Galindo helped in the experimental part.",

year = "2002",

month = dec,

day = "1",

doi = "10.1080/0031910029003269",

language = "English",

volume = "40",

pages = "685--702",

journal = "Physics and Chemistry of Liquids",

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TY - JOUR

T1 - Isobaric vapor-liquid equilibria and densities for the system ethyl 1,1-dimethylethyl ether + 2-propanol

AU - Segura, Hugo

AU - Mejía, Andrés

AU - Reich, Ricardo

AU - Wisniak, Jaime

AU - Loras, Sonia

N1 - Funding Information: This work has been financed by FONDECYT, Chile, projects No. 1990402 and 7990065. Graciela Galindo helped in the experimental part.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Vapor-liquid equilibrium (VLE) data at 50, 75, and 94 kPa have been determined for the binary system ethyl 1,1-dimethylethyl ether + 2-propanol, in the temperature range 323-344 K. The measurements were made in an equilibrium still with circulation of both the vapor and liquid phases. Excess volumes have been also determined from density measurements at 298.15 K. The system exhibits positive deviation from ideal behavior and azeotropic behavior in the range of experimental pressures. The excess volume of the system is negative over the whole mole fraction range. The activity coefficients and boiling points of the solutions were well correlated with the mole fraction by the Wohl, Wilson, UNIQUAC, NRTL equations and predicted by the UNIFAC group contribution method. Excess volume data were correlated using the Redlich-Kister expansion.

AB - Vapor-liquid equilibrium (VLE) data at 50, 75, and 94 kPa have been determined for the binary system ethyl 1,1-dimethylethyl ether + 2-propanol, in the temperature range 323-344 K. The measurements were made in an equilibrium still with circulation of both the vapor and liquid phases. Excess volumes have been also determined from density measurements at 298.15 K. The system exhibits positive deviation from ideal behavior and azeotropic behavior in the range of experimental pressures. The excess volume of the system is negative over the whole mole fraction range. The activity coefficients and boiling points of the solutions were well correlated with the mole fraction by the Wohl, Wilson, UNIQUAC, NRTL equations and predicted by the UNIFAC group contribution method. Excess volume data were correlated using the Redlich-Kister expansion.

KW - ETBE

KW - Ether

KW - Fuel oxygenating additive

KW - Unleaded gasoline

KW - Vapor-liquid equilibrium

UR - http://www.scopus.com/inward/record.url?scp=0141454731&partnerID=8YFLogxK

U2 - 10.1080/0031910029003269

DO - 10.1080/0031910029003269

M3 - Article

AN - SCOPUS:0141454731

SN - 0031-9104

VL - 40

SP - 685

EP - 702

JO - Physics and Chemistry of Liquids

JF - Physics and Chemistry of Liquids

IS - 6

ER -

Isobaric vapor-liquid equilibria and densities for the system ethyl 1,1-dimethylethyl ether + 2-propanol

Abstract

Keywords

ASJC Scopus subject areas

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