The role of modified manganese perovskite oxide for selective oxidative dehydrogenation of ethane: Not only selective H2 combustion but also ethane activation

To break through the thermodynamic reaction limitation of ethane dehydrogenation to ethylene, the oxidative dehydrogenation in the presence of O2 and chemical looping oxidative dehydrogenation has been investigated with the oxygen storage oxide compound. LaMnO3 perovskite catalysts with large specific surface areas were prepared using citric acid-nitrate combustion. The oxygen vacancies and M4+ contents in the catalysts were improved by doping LaMnO3 as the active sites. The experimental results show that the catalyst not only pro-motes ethane dehydrogenation through selective hydrogen combustion but also promotes ethane conversion through activation of C-H. The catalyst exhibits good stability in oxidative dehydrogenation reaction.

Automated summary

Oxidative dehydrogenation and chemical looping oxidative dehydrogenation methods were studied to break through the thermodynamic reaction limitation of ethane dehydrogenation to ethylene, utilizing LaMnO3 perovskite catalysts. The catalyst, prepared using citric acid-nitrate combustion, exhibited good activity and stability in the reactions.