Synthesis, characterization and CO2 sorption capacity measurements of selected ionic liquid polymers

Ionic liquids (ILs) technology has been emerged as most prominent approach for the CO2 capture, which is an important phenomena in oil & natural gas industry during the gas sweetening process. The remarkable performance of IL polymers for the CO2 capture provided new opportunities to upgrade this technology in recent years. Therefore, in the present study, we have prepared different IL polymers namely poly(1-vinylimidazole), poly(1-vinyl-3-ethylimidazolium bromide), poly(1-vinyl-3-ethylimidazolium bis(trifluoro methylsulfonyl))imide and zeolite incorporated poly(1-vinyl-3-ethylimidazolium bis(trifluoro methylsulfonyl)imide materials and evaluated their CO2 capture efficiency. The synthesized IL polymers were characterized by FT-IR, FE-SEM and EDX. The CO2 sorption experiments were conducted using gas sorption cell, and the results revealed that zeolite incorporated IL polymer has adsorbed highest amount of CO2 (1.58 mol) and recorded the highest pressure drop over other IL polymers.