Abstract
This paper presents bubble-point pressure data for CO 2 in ionic liquids 1-hexyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([HMP][Tf 2N]) and 1-octyl-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([OMP][Tf 2N]) at pressures up to approximately 62 MPa and temperatures between 303.15 and 373.15 K. The solubility of CO 2 in ionic liquids was measured with a high-pressure variable-volume view cell. At high CO 2 concentrations in ionic liquids, the equilibrium pressure increased sharply with increasing CO 2 concentrations while the solubility of CO 2 in the ionic liquids decreased commensurate to increases in temperature. We have observed that in the [Tf 2N] anion-based ionic liquids, the shorter the alkyl group chain in cation is, the larger the solubility of CO 2 in ionic liquid become. The experimental data for the CO 2 + ionic liquid system were relatively well correlated using the Peng–Robinson equation of state.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
