Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state

J. W. Kang; J. Y. Kim; K. P. Yoo; C. S. Lee

doi:10.1016/s0378-3812(98)00317-3

Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state

J. W. Kang, J. Y. Kim, K. P. Yoo, C. S. Lee

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Although an equation of state can be applied to volumetric properties, phase equilibria and excess enthalpy calculations, few studies have been published for a unified approach. This study presents the consistent application of lattice fluid model of You et al. Using pure component parameters fitted to saturation densities and vapor pressures, binary interaction parameters were determined. The binary parameter was found to be more sensitive to enthalpy. A linear temperature dependence of this parameter was found adequate. The method yields good results except for polar-nonpolar mixtures. For these systems, errors in vapor-liquid equilibria appear to be magnified.

Original language	English
Pages (from-to)	199-206
Number of pages	8
Journal	Fluid Phase Equilibria
Volume	150
Issue number	151
DOIs	https://doi.org/10.1016/s0378-3812(98)00317-3
Publication status	Published - 1998
Event	Proceedings of the 1997 13th Symposium on Thermophysical Properties - Boulder, CO, USA Duration: 1997 Jun 22 → 1997 Jun 27

Keywords

Equation of State
Excess enthalpy
Lattice Fluid Theory
VLE

ASJC Scopus subject areas

Chemical Engineering(all)
Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/s0378-3812(98)00317-3

Cite this

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title = "Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state",

abstract = "Although an equation of state can be applied to volumetric properties, phase equilibria and excess enthalpy calculations, few studies have been published for a unified approach. This study presents the consistent application of lattice fluid model of You et al. Using pure component parameters fitted to saturation densities and vapor pressures, binary interaction parameters were determined. The binary parameter was found to be more sensitive to enthalpy. A linear temperature dependence of this parameter was found adequate. The method yields good results except for polar-nonpolar mixtures. For these systems, errors in vapor-liquid equilibria appear to be magnified.",

keywords = "Equation of State, Excess enthalpy, Lattice Fluid Theory, VLE",

author = "Kang, {J. W.} and Kim, {J. Y.} and Yoo, {K. P.} and Lee, {C. S.}",

note = "Funding Information: Authors are grateful to the Ministry of Commerce and Industry for financial support. C.S. Lee is also grateful to the Korea University for partial support. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; Proceedings of the 1997 13th Symposium on Thermophysical Properties ; Conference date: 22-06-1997 Through 27-06-1997",

year = "1998",

doi = "10.1016/s0378-3812(98)00317-3",

language = "English",

volume = "150",

pages = "199--206",

journal = "Fluid Phase Equilibria",

issn = "0378-3812",

publisher = "Elsevier",

number = "151",

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TY - JOUR

T1 - Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state

AU - Kang, J. W.

AU - Kim, J. Y.

AU - Yoo, K. P.

AU - Lee, C. S.

N1 - Funding Information: Authors are grateful to the Ministry of Commerce and Industry for financial support. C.S. Lee is also grateful to the Korea University for partial support. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 1998

Y1 - 1998

N2 - Although an equation of state can be applied to volumetric properties, phase equilibria and excess enthalpy calculations, few studies have been published for a unified approach. This study presents the consistent application of lattice fluid model of You et al. Using pure component parameters fitted to saturation densities and vapor pressures, binary interaction parameters were determined. The binary parameter was found to be more sensitive to enthalpy. A linear temperature dependence of this parameter was found adequate. The method yields good results except for polar-nonpolar mixtures. For these systems, errors in vapor-liquid equilibria appear to be magnified.

AB - Although an equation of state can be applied to volumetric properties, phase equilibria and excess enthalpy calculations, few studies have been published for a unified approach. This study presents the consistent application of lattice fluid model of You et al. Using pure component parameters fitted to saturation densities and vapor pressures, binary interaction parameters were determined. The binary parameter was found to be more sensitive to enthalpy. A linear temperature dependence of this parameter was found adequate. The method yields good results except for polar-nonpolar mixtures. For these systems, errors in vapor-liquid equilibria appear to be magnified.

KW - Equation of State

KW - Excess enthalpy

KW - Lattice Fluid Theory

KW - VLE

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U2 - 10.1016/s0378-3812(98)00317-3

DO - 10.1016/s0378-3812(98)00317-3

M3 - Conference article

AN - SCOPUS:0032173083

SN - 0378-3812

VL - 150

SP - 199

EP - 206

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

IS - 151

T2 - Proceedings of the 1997 13th Symposium on Thermophysical Properties

Y2 - 22 June 1997 through 27 June 1997

ER -

Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state

Abstract

Keywords

ASJC Scopus subject areas

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