Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Solubility of CO2 in the solvent system (water + monoethanolamine + triethanolamine)

Cheng, M.-D.[Ming-Der], Caparanga, A. R.[Alvin R.], Soriano, A. N.[Allan N.], Li, M.-H.[Meng-Hui]
J. Chem. Thermodyn. 2010, 42, 3, 342-347
ABSTRACT
This report presents a new set of values for the solubility of carbon dioxide in the solvent system {water (1) + monoethanolamine (2) + triethanolamine (3)} at T = (313.2, 333.2, 353.2, and 373.2) K and CO2 partial pressures ranging (1.0 to 120) kPa. The results are specific to solvent systems with the following compositions: (i) x2 = 0.24, x3 = 0.06, (ii) x2 = 0.18, x3 = 0.12, (iii) x2 = 0.12, x3 = 0.18, (iv) x2 = 0.06, x3 = 0.24, and (v) x2 = 0, x3 = 0.30, where x refers to the mass fraction of the component. The results fit the Deshmukh and Mather model well.
Compounds
# Formula Name
1 H2O water
2 C5H13NO2 N-methyldiethanolamine
3 C6H15NO3 triethanolamine
4 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
  • 2
  • 4
  • 1
  • Mole fraction - 4 ; Liquid
  • Pressure, kPa - 4; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Titration method
  • 14
  • POMD
  • 3
  • 4
  • 1
  • Mole fraction - 4 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Titration method
  • 30