Solubility data of methane in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide are presented within temperature and pressure ranges of 300 450 K and 1 16 MPa, respectively. Experiments were carried out in a view-cell based on the synthetic method. Results indicated rather low methane solubility in the ionic liquid, ranging from 3 up to 22 mole% at the higher pressure limit of 16 MPa. In comparison to some other gases of concern to ionic liquid gas purification membranes, methane had much lower solubility than carbon dioxide and higher solubility than hydrogen. Isothermal methane solubility was shown to increase with pressure in an almost linear manner. However, temperature effects were more predominant at low temperatures, i.e. increasing the temperature caused a more notable decrease in solubility at lower temperatures than at higher temperatures. Solubility results of methane are also compared to those of ethane, propane and butane in 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide. Methane is by far less soluble than ethane, propane, and butane.
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.