Vapor–liquid equilibrium data for the CO2 + 1,1,1,2,3,3,3,-heptafluoropropane (R227ea) system at temperatures from 276.01 to 367.30 K and pressures up to 7.4 MPa

Isothermal vapor–liquid equilibrium data for the binary system CO2 + R227ea (1,1,1,2,3,3,3-heptafluoropropane) were measured at 276.01, 293.15, 303.15, 305.17, 313.15, 333.15, 353.15 and 367.30 K and pressures up to 7.4 MPa. The experimental method used in this work is of the static-analytic type. It takes advantage of two pneumatic capillary samplers (Rolsi™, Armines’ patent) developed in the Cenerg/TEP laboratory. ght sets of isothermal P, x, y data are represented with the Peng–Robinson equation of state using the Wong–Sandler mixing rules involving the NRTL model.