Development of CO₂ Separation Technology Using Ionic Liquids

Abstract

Ionic liquids (ILs) have attracted much attention as clean absorption media for acidic gases, in particular, CO₂. In the present review, we have summarized the recent development of ILs that can absorb CO₂ chemically. The CO₂ solubilities in the neat ILs and the IL mixtures were discussed in terms of the temperature and pressure dependence for the practical CO₂ separation technology.