Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Enthalpy of solution of CO2 in aqueous solutions of methyldiethanolamine at T = 322.5 K and pressure up to 5 MPa

Arcis, H.[Hugues], Rodier, L.[Laurence], Ballerat-Busserolles, K.[Karine], Coxam, J. -Y.[Jean-Yves]
J. Chem. Thermodyn. 2008, 40, 6, 1022-1029
ABSTRACT
Enthalpies of solution of CO2 in aqueous solution of methyldiethanolamine (MDEA) are determined for two different concentrations, respectively, 15 wt% and 30 wt%, at the temperature of 322.5 K and at pressures up to 5 MPa using a flow calorimetric technique. Gas solubilities were consequently deduced from the calorimetric data and compared to available literature values. Experimental enthalpies of solution were compared to direct measurements and to values derived from VLE data available using a simple model based on ideal property considerations.
Compounds
# Formula Name
1 C5H13NO2 N-methyldiethanolamine
2 H2O water
3 CO2 carbon dioxide
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mass fraction - 1; Liquid
  • Liquid
  • VIBTUB:UFactor:12
  • 10
  • POMD
  • 1
  • 3
  • 2
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Pressure, kPa; Liquid
  • Solvent: Mass fraction - 1; Liquid
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Flow calorimetry
  • 69
  • POMD
  • 1
  • 3
  • 2
  • Mole fraction - 3 ; Liquid
  • Solvent: Mass fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Derived from the enthalpies of solution - plateau
  • 6
  • POMD
  • 1
  • 3
  • 2
  • Molar enthalpy of solution, kJ/mol ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Solvent: Mass fraction - 1; Fluid (supercritical or subcritical phases)
  • Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Flow calorimetry
  • 32