LDH로 제조된 Fe-Mo-Mg-Al촉매상에서 이산화탄소 존재하의 에틸벤젠의 탈수소화

초록

Novel Fe-Mo-Mg-Al mixed oxides catalyst was prepared for the oxidative dehydrogenation of ethylbenzene using CO2 as a soft oxidant. Mg-Al LDH was used as precursor for locating anionic active components such as Fe[EDTA]=1 and [MoO4]-2 within brucite-like layers. Mixed oxides phase was obtained by calcinations at 650C for 4 hr. Catalytic activity was measured using a fixed bed reactor. According to the EBD test and TGA results, it can be known that the mixed oxides catalyst, compared with normal alumina supported Fe-Mo mixed oxide catalyst, shows the increased stability and decreased carbon deposition.