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A new four‐parameter cubic equation of state for mixtures. Vapor–liquid equilibrium calculations
Author(s) -
Jan DongSyau,
Tsai FuanNan
Publication year - 1992
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450700216
Subject(s) - cubic function , equation of state , thermodynamics , mixing (physics) , vapor pressure , work (physics) , polar , vapor–liquid equilibrium , range (aeronautics) , chemistry , materials science , physics , mathematics , mathematical analysis , quantum mechanics , astronomy , composite material
A new four‐parameter cubic equation of state has been recently developed and has accurately reproduced the thermodynamic properties of pure substances including polar fluids. In this work we apply the equation to vapor‐liquid equilibrium calculations through the introduction of different mixing rules. Various classes of mixtures are investigated at low pressures as well as at high pressures. The calculated results show that the equation with the Huron‐Vidal mixing rules offers better correlations for all types of systems over a wide range of temperature and pressure.