High-Pressure Vapor−Liquid Equilibria in the System Carbon Dioxide + 1-Butanol at Temperatures from (293.15 to 324.15) K

Abstract

Isothermal (P, T, x, y) data have been measured for the binary system carbon dioxide + 1-butanol at temperatures from (293.15 to 324.15) K. The pressure range under investigation was between (0.52 and 10.09) MPa. The new experimental data are correlated with the Soave−Redlich−Kwong (SRK) equation of state coupled with the Huron−Vidal infinite dilution (HVID) mixing rules. A linear correlation of the HVID parameters with the inverse temperature is proposed by using only the data of this study. The values of HVID parameters from the linear correlation were used to predict VLE at all temperatures for which published data are available. The VLE data are reasonably well predicted for engineering purposes.