Highly efficient absorbents for post-combustion CO2 capture

Highly efficient absorbents for CO(2) capture from the flue gas of power station were developed. The development of absorbent for CO(2) separation is the one of the core technologies in the manner of chemical absorption. In this study, novel absorbents for post-combustion CO(2) capture gave the fast absorption rate, higher absorption capacity and fast stripping rate than those of MEA which is the representative chemical absorbent for CO(2) separation. In addition, the newly developed absorbents have been evaluated their capability for CO(2) separation by absorption screening test, VLE and their applications to pilot plant test. At pilot plant test, it was possible to reduce the operation energy of facility because KoSol-1 & 2 needed 1 similar to 2 degrees C lower temperature of stripper, which have possess more than 50% of total energy required in CO(2) separation process, than that of MEA when the newly developed absorbents, KoSol-1 & 2, were used as an absorbent, respectively. In the case of KoSol-2, the removal efficiency of CO(2) was higher than that of MEA even in the 2 degrees C lower stripper temperature. (C) 2008 Elsevier Ltd. All rights reserved