Pressure−Density−Temperature Behavior of CO2/Acetone, CO2/Toluene, and CO2/Monochlorobenzene Mixtures in the Near-Critical Region

An isochoric technique was used to perform P − ρ − T measurements of CO 2 /acetone, CO 2 /toluene, and CO 2 /monochlorobenzene mixtures where the mol fraction of CO 2 is 0.9 at temperatures from 313.2 to 393.2 K, the density of mixtures varied from 2.91 to 15.77 mol/L, and the determined pressure ranged from 4.19 to 43.06 MPa. The dew points for the above mixtures were also obtained using a visual observation method. The Peng−Robinson equation of state was used to represent the experimental data, and a good agreement was obtained between experimental data and correlated results.