Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Phase Behavior of CO2 in Monoethylene Glycol between 263.15-343.15 K and 0.2-40.3 MPa: An Experimental and Modeling Approach

Wise, Michael, Chapoy, Antonin
J. Chem. Eng. Data 2017, 62, 12, 4154-4159
ABSTRACT
Solubility data for CO2 in Monoethylene Glycol (MEG) are limited in the open literature, with most of the data limited to temperatures above 298.15 K through a small number of sources. This work focused on the solubility of CO2 in pure MEG in a wider range of temperatures and pressures as experimental data in such conditions are extremely limited in the open literature. These results can be used to optimize EoS and increase prediction reliability due to the wider range. The solubility of CO2 in MEG was measured between 263.15 343.15 K and 0.2 40.3 MPa. The experimental results from this study are compared to available data from the open literature together with the CPA-SRK72 calculations. The data from this work together and open literature were used to calculate a Binary Interaction Parameter (BIP) of 0.053 between 263.15 398.15 K to correlate the experimental data. The experimental results showed an overall absolute average deviation of 4.81% from the calculated modelling results.
Compounds
# Formula Name
1 C2H6O2 1,2-ethanediol
2 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
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • volumetric
  • 52
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • volumetric
  • 28