Experimental Analysis on Characteristics of Ionic Liquid Electrospray and Its Application to Efficient CO₂ Absorption

Abstract

Ionic liquids exhibit outstanding ability of carbon dioxide (CO₂) absorption. Aiming at further CO₂ higher absorption rate, we attempted to develop ionic liquid electrospray CO₂ capture system in this study. Since electrospray generates ultrafine droplets, surface absorption reaction at the interface can be enhanced remarkably. Droplets of 200~1000 nm were successively generated by the electrospray, and the CO₂ absorption amount integrated for 20 minutes increases by 220% by electrospray.