초록 |
Combustion of fossil fuels is one of the major emission sources of the anthropogenic CO2. Therefore, it is necessary to develop technologies which can reduce CO2 emission while allowing us to utilize fossil fuels. However, commercial CO2 capture technologies including absorption by liquid media are not only energy intensive, but also have many operational restrictions. In this respect, development of new class of solid adsorbents with high adsorption capacity, high adsorption selectivity for CO2, and high regenerability is challengeable for high temperature PSA and TSA processes in the integrated gasification combined cycle (IGCC). The objective of this work is to investigate the performance of nanostructured alkali or alkaline earth metal oxide composite adsorbents in the high temperature CO2 adsorption-desorption, and to understand their reaction mechanism on the basis of experimental and theoretical study. |