Abstract
Vapor-liquid equilibrium data for the binary mixture of carbon dioxide (CO2)+1,1-difluoroethane (HFC-152a) were measured at five evenly spaced temperatures of (273.15, 283.15, 293.15, 303.15 and 313.15) K by using a circulation-type equilibrium apparatus in which both vapor and liquid phases were recirculated. The experimental data were correlated with the Peng-Robinson equation of state (PR-EoS) using the Wong-Sandler mixing rules combined with the NRTL excess Gibbs free energy model and the Carnahan-Starling-DeSantis equation of state (CSD EoS). Almost all the calculated values with these two models showed good agreement with the experimental data.
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Kang, J.W., Kim, A.R. & Lim, J.S. High pressure isothermal vapor-liquid equilibria of carbon dioxide+1,1-difluoroethane. Korean J. Chem. Eng. 27, 261–266 (2010). https://doi.org/10.1007/s11814-009-0334-0
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DOI: https://doi.org/10.1007/s11814-009-0334-0