Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Measurement and modelling of the solubility of carbon dioxide in aqueous 1,8-p-menthane-diamine solution

Li, J.[Jie], Lin, X.[Xiao], Ning, P.-G.[Peng-Ge], Cao, H.-B.[Hong-Bin], Zhang, Y.[Yi]
J. Chem. Thermodyn. 2014, 71, 64-70
ABSTRACT
The solubility of CO2 in aqueous 1,8-p-menthane-diamine (MDA) solution with substance concentrations of 0.625 and 1.25 mol L 1 was measured at temperatures (313.15, 333.15 and 353.15) K with CO2 partial pressures ranging from (0.55 to 776.0) kPa and CO2 loading ranging from (0.120 to 1.97) mol CO2 per mol MDA. The gas solubility results are expressed as the partial pressure of CO2 (PCO2 ) against its mole ratio, i.e. aCO2 (mol CO2 per mol MDA). The chemical absorption reaction and thermodynamic model have been proposed. The physicochemical Kent Eisenberg model was used to correlate all the experimental results of the solubility of CO2 in the aqueous MDA solutions under investigation. The chemical equilibrium constants and model parameters were determined by fitting the VLE data.
Compounds
# Formula Name
1 H2O water
2 CO2 carbon dioxide
3 C10H22N2 1,8-p-menthanediamine
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
  • 2
  • 1
  • Amount concentration (molarity), mol/dm3 - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa - 2; Gas
  • Amount concentration (molarity), mol/dm3 - 3; Liquid
  • Liquid
  • Gas
  • Volumetric method
  • 70