To develop the separation process using supercritical (sc) CO2 regeneration of waste lubricating oil, the equilibrium solubilities of iso-eicosane in the binary iso-eicosane supercritical CO2 system were obtained at 313.2 K, 328.2 K, 343.2 K, and 358.2 K under pressures ranging from 7.24 MPa to 14.68 MPa. The solubilities of this component increased with a pressure increase, whereas they decreased with temperature increase. The Chrastil equation and Adachi and Lu equation were used correlate the solubility behavior of iso-eicosane in supercritical CO2, which revealed that both equations are in good agreement with the experimental data. Since the AARD values of the Chrastil equation range from 0.42 % to 4.99 % and the AARD values of Adachi and Lu equation range from 0.16 % to 1.70 %, it was shown that the Adachi and Lu models better agreement with the experimental data.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
C20H42
2-methylnonadecane
3
C2H6O
ethanol
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.