Improving Physical Adsorption of CO2 by Ionic Liquids-Loaded Mesoporous Silica
Mojtaba Mirzaei
University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran
Search for more papers by this authorCorresponding Author
Babak Mokhtarani
Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran
Correspondence: Alireza Badiei ([email protected]), University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran; Babak Mokhtarani [email protected], Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran.Search for more papers by this authorCorresponding Author
Alireza Badiei
University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran
Correspondence: Alireza Badiei ([email protected]), University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran; Babak Mokhtarani [email protected], Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran.Search for more papers by this authorAli Sharifi
Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran
Search for more papers by this authorMojtaba Mirzaei
University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran
Search for more papers by this authorCorresponding Author
Babak Mokhtarani
Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran
Correspondence: Alireza Badiei ([email protected]), University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran; Babak Mokhtarani [email protected], Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran.Search for more papers by this authorCorresponding Author
Alireza Badiei
University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran
Correspondence: Alireza Badiei ([email protected]), University of Tehran, School of Chemistry, College of Science, Enghelab Avenue, 1417614411 Tehran, Iran; Babak Mokhtarani [email protected], Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran.Search for more papers by this authorAli Sharifi
Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, 1497716343 Tehran, Iran
Search for more papers by this authorAbstract
CO2 sorption capacities of the neat and silica-supported 1-butyl-3-methylimidazolium-based ionic liquids (ILs) were measured under atmospheric pressure. The silica-supported ILs were synthesized by the impregnation-vaporization method and charactrized by N2 adsorption/desorption and thermogravimeteric analysis (TGA). Evaluation of the effects of influential factors on sorption capacity demonstrated that by increase of the temperature, flow rate, and the weight percentage of ILs in sorbents, the sorption capacity decreases. Among the sorbents, [Bmim][TfO] and SiO2-[Bmim][BF4](50) had the highest capacity. By increasing the IL portion in SiO2-[Bmim][BF4], the selectivity for CO2 to CH4 could be improved. The CO2-rich sorbents could be easily recycled.
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