The present paper explores the applicability of the perturbed-hard-chain equation of state for estimating vapor-liquid equilibria for solutions of CO2
CO
CH4
H2
N2 and Ar in polar solvents such as H2O and CH3OH. Related parameters thus calculated
from literature data
indicated that for mixtures consisting of polar compounds alone or of polar and nonpolar compounds
the adjustable parameters are all temperature-related
and should be computed from the polynomial equation: A computer program was formulated for the eight-component system
CH3OH-H2O-CO2-CO-H2-CH4-N2-Ar. The resulting simulation for the vapor-liquid separation in methanol production checked closely the flowsheet data of Lurgi