| 초록 |
Carbon capture technologies are still far from being the industrial standard, and processes vary from pre-combustion to post-combustion technologies. CO2 capture for pre-combustion is to remove the acid gases such as CO2 and H2S in synthesis gas produced from integrated gasification of combined cycle(IGCC). During the capture process, it is operated under high pressure and high partial pressure of CO2. In this study, as a candidate of the carbon dioxide absorbents, KEA(KEPCO Enhanced Absorbent)-series were investigated. The relative CO2 loading capacity of PEGDME and mixtures were estimated at 298.15K, 30bar for 30 min by using semi-batch apparatus. Equilibrium partial pressure(PCO2) and pressure change were measured by using VLE(Vapor-liquid equilibrium) equipment in PEGDME and mixture at 283.15 to 298.15K, up to 30bar. Based on the results, we found that KEA had higher CO2 solubility compared with PEGDME. |
