Kim, JH Kim, MS Kim, Y 2024-01-21T08:11:49Z 2024-01-21T08:11:49Z 2021-09-03 2003-09-01 0378-3812 https://pubs.kist.re.kr/handle/201004/138244 This paper provides vapor-liquid equilibrium (VLE) data obtained for two binary systems of pentafluoroethane (R125) + propane (R290) and difluoromethane (R32) + R290 over a temperature range from 253.15 to 323.15 K. The measurement of VLE was performed at isothermal conditions in a vapor recirculation apparatus. Both systems form azeotropes in the temperature range of this study. The experimental results were well correlated with the Peng-Robinson equation of state (PR EoS) using one parameter van der Waals one fluid model. The binary interaction parameters were optimized using the experimental data of bubble point pressure. A comparison with published experimental VLE data has been carried out by means of the PR equation of state. (C) 2003 Elsevier B.V. All rights reserved. English ELSEVIER Vapor-liquid equilibria for pentafluoroethane plus propane and difluoromethane plus propane systems over a temperature range from 253.15 to 323.15 K Article 10.1016/S0378-3812(03)00237-1 1 FLUID PHASE EQUILIBRIA, v.211, no.2, pp.273 - 287 FLUID PHASE EQUILIBRIA 211 2 273 287 scie scopus 000184530000011 2-s2.0-0037485687 Thermodynamics Chemistry, Physical Engineering, Chemical Thermodynamics Chemistry Engineering Article vapor-liquid equilibria azeotrope Peng-Robinson EoS pentafluoroethane difluoromethane propane