Ionic liquids are promising solvents for extracting CO2 from H2, N2 and O2 using the absorption separation method. Solubilities of these gases in 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluoropho sphate ([HMIM][eFAP]) were determined using an isochoric saturation method. Experimental result indicates that solubilities of H2, N2 and O2 in [HMIM][eFAP] are much lower than that of CO2. The performance of [HMIM][eFAP] in separating CO2 from N2, H2 and O2 can be improved by decreasing the temperature. Based on the solubility data, the ideal selectivities of CO2/N2, CO2/H2, and CO2/O2 in different ionic liquids were calculated and the effect of the ionic liquid structure on them were investigated.
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.