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
UR - http://www.scopus.com/inward/record.url?scp=0032173083&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032173083&partnerID=8YFLogxK
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 -