Thermodynamics Research Center, ThermoML : Journal of Chemical and Engineering Data

Measurement and Correlation of Vapor-Liquid Equilibrium for Binary Systems of Dimethyl Carbonate with Butyl Butyrate, o-Xylene, and Cyclohexanone at 101.3 kPa

Liu, K.[Kai], Xu, X.[Xin], Zhang, Y.[Yi], Xu, D.[Dongmei], Gao, J.[Jun], Zhang, L.[Lianzheng], Wang, Y.[Yinglong]
J. Chem. Eng. Data 2019, 64, 12, 5210-5217
ABSTRACT
For separation of the azeotropic mixture (dimethyl carbonate + ethanol) by extractive distillation, butyl butyrate, o-xylene and cyclohexanone were chosen as the solvents. The binary vapor-liquid equilibrium (VLE) data for the systems (dimethyl carbonate + butyl butyrate / o-xylene / cyclohexanone) were determined at 101.3 kPa. The van Ness method and pure component consistency test were adopted to verify the consistency of the measured isobaric VLE experimental data. Besides, the measured experimental data were correlated by the UNIQUAC, NRTL and Wilson thermodynamic models, and the binary interaction parameters for the three models were optimized. Meanwhile, the values of the root-mean-square deviation (RMSD) for the temperature and the vapor phase composition are less than 0.31 K and 0.0087, respectively.
Compounds
# Formula Name
1 C3H6O3 dimethyl carbonate
2 C2H6O ethanol
3 C8H10 1,2-dimethylbenzene
4 C8H16O2 butyl butanoate
5 C6H10O cyclohexanone
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
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 4
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 5
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 2
  • 1
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 22
  • POMD
  • 2
  • 1
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 20
  • POMD
  • 1
  • 3
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 20
  • POMD
  • 1
  • 3
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 18
  • POMD
  • 1
  • 4
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 20
  • POMD
  • 1
  • 4
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 18
  • POMD
  • 1
  • 5
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 20
  • POMD
  • 1
  • 5
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 18