Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor-liquid equilibrium for systems containing sulfur compounds

Guo, B.[Benshuai], Bai, J.[Juan], Li, Y.[Yonghong], Xia, S.[Shuqian], Ma, P.[Peisheng]
Fluid Phase Equilib. 2013, 353, 87-92
ABSTRACT
Isobaric vapor-liquid equilibrium (VLE) data for the binary systems of thiophenic compounds with three hydrocarbons in gasoline (2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene and n-heptane) were measured in dilute solutions at 101.33 kPa with a modified Rose-Williams still. General Coulomb meter wasused to analyze the compositions of the samples from the vapor-liquid equilibrium systems. The VLE data was compared with the calculated value by the Wilson model with the interaction parameters regressed over the entire concentration range. Results found that neither the activity coefficient model nor the Henry's model could describe the VLE behavior of the trace component in the dilute solution accurately.Thus a concept of multi-scale phase equilibrium was proposed.
Compounds
# Formula Name
1 C4H4S thiophene
2 C5H6S 3-methylthiophene
3 C6H12 2,3-dimethyl-1-butene
4 C6H12 2,3-dimethyl-2-butene
5 C7H16 heptane
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
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 2
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 3
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 4
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 5
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 1
  • POMD
  • 5
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Manometric method
  • 12
  • POMD
  • 1
  • 4
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • OTHER
  • 24
  • POMD
  • 1
  • 4
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 24
  • POMD
  • 1
  • 5
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • OTHER
  • 35
  • POMD
  • 1
  • 5
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 35
  • POMD
  • 3
  • 2
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • OTHER
  • 58
  • POMD
  • 3
  • 2
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 58