### 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 |

Publication status | Published - 1998 Sep 1 |

### Fingerprint

### Keywords

- Equation of State
- Excess enthalpy
- Lattice Fluid Theory
- VLE

### ASJC Scopus subject areas

- Fluid Flow and Transfer Processes
- Physical and Theoretical Chemistry

### Cite this

*Fluid Phase Equilibria*,

*150*(151), 199-206.

**Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state.** / Kang, Jeong Won; Kim, J. Y.; Yoo, K. P.; Lee, C. S.

Research output: Contribution to journal › Article

*Fluid Phase Equilibria*, vol. 150, no. 151, pp. 199-206.

}

TY - JOUR

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

AU - Kang, Jeong Won

AU - Kim, J. Y.

AU - Yoo, K. P.

AU - Lee, C. S.

PY - 1998/9/1

Y1 - 1998/9/1

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

M3 - Article

AN - SCOPUS:0032173083

VL - 150

SP - 199

EP - 206

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

SN - 0378-3812

IS - 151

ER -