| 초록 |
Chemical Looping Combustion technology is a technology that can implement indirect oxygenation using metal oxides in combustion reactions. Among them, Mn can have various oxidation states, and it exists differently depending on the temperature and environment. In this study, the properties of oxygen transfer particles were compared by varying calcination temperatures, and the calcination temperature was optimized. To compare oxygen transfer performance, reduction was carried out in a 15%-CH4/CO2 atmosphere through TGA and oxidation was carried out using normal air. To analyze the physicochemical properties of oxygen transfer particles, XRD, XPS, H2-TPR, CH4-TPD, etc. were measured. In addition, the analysis of SEM and XRD was conducted to check the change of particles after the reaction. |
