Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Vapor-Liquid Equilibrium Measurements for the Nitrogen + Tetrafluoromethane System over a Temperature Range of (134.27 to 204.85) K

Yu, G.[Guobao], Guo, K.[Kaihua], Sun, B.[Biao]
J. Chem. Eng. Data 2009, 54, 8, 2281-2284
ABSTRACT
The isothermal vapor-liquid equilibrium for nitrogen (N2) + tetrafluoromethane (CF4) system P, T, y data was measured at temperatures of (134.27, 143.57, 153.95, 162.70, 173.43, 185.33, 192.51, and 204.85) K, respectively. The measurements were made with vapor recirculation method, and the experimental results were correlated with the Peng-Robinson equation of state and the van der Waals mixing rule. Through an optimization, the interaction parameters at each temperature and the overall interaction parameter for the whole range of experimental data were obtained. The deviations between the correlated and measured vapor compositions were calculated and the data showed a good consistency.
Compounds
# Formula Name
1 N2 nitrogen
2 CF4 tetrafluoromethane
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Liquid
  • vapor recirculation method
  • 66