The solubility of CO2 in polyethylene glycol dimethyl ether (NHD), octamethyl cyclotetrasiloxane (D4), and diethyl succinate (DS) was determined at the temperature variations from 285.19 K to 313.26 K up to 6 MPa by the constant-volume method. Then, Henry s law constant (H) based on mole fraction was obtained by linear fitting of the vapor liquid phase equilibrium data, and some thermodynamic properties of solutions were also calculated from the correlation of H. The values of H in NHD, D4, and DS vary from 2.5 MPa to 8 MPa and increase in the following order: DS less than D4 less than NHD, which is identical to the order of the solvents ability to dissolve CO2. Additionally, Henry s law constant increases with temperature increase to confirm the solubility of CO2 decrease in the corresponding solvents for the pressure range studied.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
C8H24O4Si4
octamethylcyclotetrasiloxane
3
C8H14O4
diethyl butanedioate
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.