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.
Bibliographical noteFunding Information:
This research was supported by a Sogang University Research Grant in 2008.
- Carbon Dioxide (CO)
- Carnahan-Staring-DeSantis Equation of State (CSD EoS)
- Peng-Robinson Equation of State (PR EoS)
- Vapor-liquid Equilibria (VLE)
ASJC Scopus subject areas
- Chemical Engineering(all)