Performance evaluation of newly developed absorbents for CO2 capture

Chemical absorption method using amine based absorbents is the most applicable to post-combustion carbon dioxide capture process in thermal power station. The development of absorbent for CO2 capture is the one of the core technologies in the manner of chemical absorption. To develop post-combustion carbon dioxide absorbents, IEA CCC suggested the requirements for excellent chemical absorbents such as higher carbon dioxide capacity, faster absorption and stripping rates, lower corrosivity and degradation rates, lower volatility, and reduced regeneration energy. In this study, Regeneration energy of KoSol-3 was 2.82 GJ/t- CO2. This value is lower than the value for the commercially used absorbent (MEA, 3.85 GJ/t- CO2). These results mean that it is possible to reduce nearly 30% of regeneration energy when we use KoSol-3 as the carbon dioxide absorbent.