Experimental determination and modeling of bubble and dew points in the system CO₂ + CHF₃

Bubble point (L + V → L) and dew point (L + V → V) pressures were measured for the binary system CO₂ + CHF₃, using Cailletet equipment. The measurements were carried out for the whole mole fraction range and for temperatures from 263 K up to the mixture critical points. The experimental data were used to determine binary interaction parameters for the Peng-Robinson equation of state with a Stryjek and Vera modification (PRSV) and a Margules-type binary interaction parameter.