Vapor–liquid equilibria of carbon dioxide with ethyl benzoate, diethyl succinate and isoamyl acetate binary mixtures at elevated pressures

Abstract

Vapor–liquid equilibrium (VLE) data of CO 2 with ethyl benzoate, diethyl succinate, and isoamyl acetate binary mixtures were measured by a semi-flow type apparatus at 308.15, 318.15, and 328.15 K over the pressure range from 1.0 to 13 MPa. New VLE results for CO 2 with esters are presented and the Henry's constants are determined. These VLE data were also correlated using the Soave–Redlich–Kwong and the Peng–Robinson equations of state with various types of the van der Waals, composition-dependent and Huron–Vidal mixing rules. It is shown that both equations of state with the van der Waals mixing rules and two adjustable parameters give satisfactory correlation results.