Dr Ardila Hayu Tiwikrama - A novel generation of sorbents capable of capturing carbon dioxide using ionic liquids and deep eutectic solvents

IAS Visiting Fellow Dr Ardila Hayu Tiwikrama delivers a seminar on their research - 

In large-scale industrial applications, the high cost and energy associated with CO2 capture from flue gases is a significant obstacle. Therefore, it is crucial to develop a technically and economically efficient technology for CO2 capture. In this study, the CO2 absorption potential of functionalized DESs and ILs is investigated. The improvement of the absorption capacity of ILs can be achieved by incorporating CO2-philic functional groups, such as amine, into the cation and/or anion moiety. The anion component of ILs is more efficiently functionalized than the cation component. In the present study, the solubility of CO2 in diisopropylethylammonium-based ILs and polyol-based DESs with a certain molar ratio was measured using a variable volume high-pressure cell at temperatures from 298.15 to 373.15 K and pressures up to 150 bar. The experimental vapor-liquid equilibrium (VLE) data were correlated with the PC-SAFT. Novel ILs and DESs with promising absorption capacities are conceivably developable.

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