Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Solubility of carbon dioxide in a eutectic mixture of choline chloride and glycerol at moderate pressures

Leron, R. B.[Rhoda B.], Li, M.-H.[Meng-Hui]
J. Chem. Thermodyn. 2013, 57, 131-136
ABSTRACT
In this work, we present new measurements on the solubility of carbon dioxide in a deep eutectic solvent (DES) containing choline chloride and glycerol (1:2 mole ratio) over the temperature range (303.15 to 343.15) K and pressures up to 6.3 MPa. Experimental measurements were carried out in a thermogravimetric microbalance, and the effects of buoyancy on the measurements were accounted for. Results indicated that the solubility of the gas in the solvent increased almost linearly with pressure and decreased with increasing temperature. The dependence of the carbon dioxide solubility in the DES (in molality) on temperature and pressure were accurately represented by an extended Henry s law model at an average absolute deviation of 1.4%.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C5H14ClNO choline chloride
3 C3H8O3 glycerol
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
  • Molality, mol/kg - 1 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Solvent: Mole fraction - 2; Liquid
  • Gas
  • Liquid
  • thermogravimetric microbalance
  • 40