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

Vapor-liquid equilibrium (VLE) data of CO₂ 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 CO₂ 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.