| 초록 |
Chemical Looping Combustion technology is a technology that can implement indirect oxygenation using metal oxides in combustion reactions. Although Ni-based particles are mainly used for conventional oxygen transfer particles, Ni is not only expensive but also not free from environmental problems. Low-cost oxygen transfer particles without Ni are being developed through various studies, but oxygen transfer performance is significantly lower than that of existing oxygen transfer particles, making it difficult to commercialize. This study synergy effect of improving oxygen transfer performance by doping metal cations on the skeleton of low-cost oxygen transfer particles and optimizing the doping ratio. 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. The properties of oxygen transfer particles, XRD, XPS, H2-TPR, CH4-TPD, etc. were measured. |
