Vapor-liquid equilibrium data for the (hexafluoroethane +1,1,1,2-tetrafluoroethane) system at temperatures from 263 to 353 K and pressures up to 4.16 MPa

Hakim Madani (1) , Alain Valtz (1) , Christophe Coquelet (1) , Abdeslam-Hassen Meniai (2) , Dominique Richon (1)

1 CEP/Fontainebleau
2 LIPE - Laboratoire de l'Ingénierie des Procédés de l'Environnement

Isothermal vapor-liquid equilibrium data are reported for the binary system of hexafluoroethane and 1,1,1,2-tetrafluoroethane in the temperature range 263-353 K and in the pressure range 0.2-4.2 MPa. Areliable "static- analytic" method taking advantage of two online micro-capillary ROLSI™ samplers is used for all the measurements. The data are correlated using our in-house (ThermoSoft) thermodynamic software based on the Peng-Robinson equation of state, the Mathias-Copeman alpha function, the Wong-Sandier mixing rules, and the NRTL model.

Mots clés: Phase equilibria; Critical point; Modeling; R116; R134a; Supercritical gas solubility; VLB data

Domaines: Génie des procédés

Hakim Madani, Alain Valtz, Christophe Coquelet, Abdeslam-Hassen Meniai, Dominique Richon. Vapor-liquid equilibrium data for the (hexafluoroethane +1,1,1,2-tetrafluoroethane) system at temperatures from 263 to 353 K and pressures up to 4.16 MPa. Fluid Phase Equilibria, 2008, 268 (1-2), pp.68-73. ⟨10.1016/j.fluid.2008.04.002⟩. ⟨hal-00880446⟩