Phase Equilibria of Gases and Liquids with 1-n-butyl-3-Methylimidazolium Tetrafluoroborate

High-pressure phase behavior of the binary ionic liquid system 1-octyl-3-methylimidazolium tetrafluoroborate+carbon dioxide

“…ILs can be imagined as molten salts at room temperature as they are liquids in a wide range of temperatures (approximately 400 K). The molten salts at room temperature are composed of one organic cation, most commonly n-alkyl methyl-imidazolium, piridynium, and one inorganic or organic anion like PF 6 − , BF 4 − , Cl − , NO 3 − , etc. Depending on the cation and the anion, the physical properties (density, viscosity, hygroscopicity, etc.…”

“…Solubility data of various gases in ionic liquids have been reported in literature [6][7][8]. In the case of [bmim][PF 6 ], it was shown that CO 2 dissolves better than other gases.…”

“…In the case of [bmim][PF 6 ], it was shown that CO 2 dissolves better than other gases. Later Shariati et al [9] studied the same system, and despite the data are different from those of Blanchard et al [8], the high solubility is still shown for low concentrations of CO 2 .…”

Ionic Liquids Recycling for Reuse

“…Anthony et al (2002) presented the solubility of several permanent and reactive gases in various ILs and the separation of CO 2 from methane and nitrogen using ILs in a supportedliquid membrane system. They also showed that ILs can be recovered from organic or aqueous solutions using CO 2 as an anti-solvent.…”

Influence of Ionic Liquid Structure on Supported Ionic Liquid Membranes Effectiveness in Carbon Dioxide/Methane Separation

“…Application of ILs as absorbents allows avoiding contamination of outlet gas streams by absorbent vapours. This advantage gives ILs huge predominance over traditional volatile organic solvents used in purification of gaseous mixtures [7][8][9][10][11], especially in carbon dioxide removal. An excellent media for this purpose are imidazolium ionic liquids.…”