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

Research output: Contribution to journalConference article

8 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 languageEnglish
Pages (from-to)199-206
Number of pages8
JournalFluid Phase Equilibria
Volume150
Issue number151
DOIs
Publication statusPublished - 1998
EventProceedings of the 1997 13th Symposium on Thermophysical Properties - Boulder, CO, USA
Duration: 1997 Jun 221997 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

Fingerprint Dive into the research topics of 'Excess enthalpy and vapor-liquid equilibrium prediction using non-random lattice fluid equation of state'. Together they form a unique fingerprint.

  • Cite this