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

Influence of the Temperature on the Liquid Liquid Equilibria of Heptane + Toluene + Sulfolane and Heptane + m-Xylene + Sulfolane

Lin, W.-C. [Wen-Churng], Tsai, T.-H.[Teh-Hua], Lin, T.-Y.[Thong-Yueh], Yang, C.-H.[Chien-Hsin]
J. Chem. Eng. Data 2008, 53, 3, 760-764
ABSTRACT
Equilibrium tie line data have been determined at (298.15, 323.15, 348.15, and 373.15) K for the ternary liquid liquid equilibria (LLE) of heptane + (toluene or m-xylene) + sulfolane systems. The relative mutual solubility of toluene is higher than that of m-xylene in heptane + sulfolane mixtures. The tie line data were correlated with the UNIQUAC and NRTL models. The calculated values based on the UNIQUAC model were found to be better than those based on the NRTL model; the average root-mean-square deviation between the phase composition obtained from experiment and that from calculation was 0.5111 for UNIQUAC compared to 0.6475 for NRTL. The values of selectivity and the distribution coefficient were derived from the equilibrium data at different temperatures.
Compounds
# Formula Name
1 C4H8O2S sulfolane
2 C7H16 heptane
3 C7H8 toluene
4 C8H10 1,3-dimethylbenzene
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
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • 4
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • 4
  • POMD
  • 3
  • 1
  • 2
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 36
  • POMD
  • 4
  • 1
  • 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 36