Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Experimental solubility of carbon dioxide and hydrogen sulfide in 2,2'-thiodiglycol

Vahidi, Mehdi, Shokouhi, Mohammad
J. Chem. Thermodyn. 2019, 133, 202-207
ABSTRACT
The solubility of acid gases such as CO2 and H2S in 2,2-thiodiglycol (TDG) were measured by static method so called isochoric saturation within the temperature range (303.15-353.15) K by steps of 10 K and pressure up to 1.2 MPa. To calculate the absorption behaviour of gases, density of 2,2-thiodiglycol at the related temperature range was measured with Anton Paar SVM 3000, as well. The outcome solubility data were modelled using Stryjek-Vera modification of Peng-Robinson cubic equation of state (PRSV EoS), and thermodynamic solubility quantities at infinitely diluted solution in 2,2-thiodiglycol were reported.
Compounds
# Formula Name
1 H2S hydrogen sulfide
2 CO2 carbon dioxide
3 C4H10O2S .beta.,.beta.'-dihydroxydiethyl sulfide
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
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 7
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Phase equilibration
  • 32
  • POMD
  • 1
  • 3
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Phase equilibration
  • 36