Lee, BG Yang, WJ Kim, JD Lim, JS 2024-01-21T08:37:37Z 2024-01-21T08:37:37Z 2021-09-03 2003-07 0021-9568 https://pubs.kist.re.kr/handle/201004/138440 Isothermal vapor-liquid equilibria for the binary mixtures of difluoromethane (HFC-32) + propane (HC-290) were measured at (268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K. The experiments were carried out using a circulation-type equilibrium apparatus with the measurement of temperature, pressure, and the compositions of the liquid and vapor phases. The experimental data were correlated with the Peng-Robinson equation of state using the Wong and Sandler mixing rules and the Carnahan-Starling-Desantis equation of state. Calculated results with these equations showed good agreement with the experimental data, but the Peng-Robinson equation of state gave more accurate calculations for the binary systems. It was found that this system has a very strong positive azeotrope for all the temperature range studied here. English AMER CHEMICAL SOC ALTERNATIVE REFRIGERANT MIXTURES PHASE-EQUILIBRIA MIXING RULE HFC-134A STATE HFC-152A EQUATION ISOBUTANE HFC-227EA PRESSURE Vapor-liquid equilibria for the binary system difluoromethane (HFC-32) plus propane (HC-290) at seven temperatures [(268.15, 278.15, 283.15, 288.15, 298.15, 308.15, and 318.15) K] Article 10.1021/je020154p 1 JOURNAL OF CHEMICAL AND ENGINEERING DATA, v.48, no.4, pp.841 - 846 JOURNAL OF CHEMICAL AND ENGINEERING DATA 48 4 841 846 scie scopus 000184084700015 2-s2.0-0041341995 Thermodynamics Chemistry, Multidisciplinary Engineering, Chemical Thermodynamics Chemistry Engineering Article ALTERNATIVE REFRIGERANT MIXTURES PHASE-EQUILIBRIA MIXING RULE HFC-134A STATE HFC-152A EQUATION ISOBUTANE HFC-227EA PRESSURE vapor-liquid equilibria