Pressure - Temperature phase diagrams of clathrate hydrates of HFC-134a, HFC-152a and HFC-32
Résumé
In this communication, we report dissociation pressures for clathrate hydrates of C2H2F4 (1,1,1,2-tetrafluoroethane or HFC-134a or R-134a), C2H4F2 (1,1-difluoroethane or HFC-152a or R-152a) and CH2F2 (difluoromethane or HFC-32 or R-32) in the temperature ranges of (279.4 to 282.9) K, (279.7 to 287.7) K and (278.1 to 291.3) K, respectively. The experimental data were generated using an isochoric pressure-search method. The hydrate dissociation data are compared with the experimental data reported in the literature and a discussion is made on their reliabilities.