Combination of co-doped Ce-Mn perovskite with different spacial distributions for methane catalytic reforming reactor to realize functional partition

The optimization of catalyst surface activity and reactor structure contributed to improving catalytic performance. In order to design an efficient catalyst for hydrogen production from methane, La1-xCexCo1-yMnyO3 (LCCM) perovskites with high activity and stability were prepared by Ce and/or Mn doping. Then a novel reactor combined functional perovskite with different spacial distribution was built to study the catalytic activity of LCCM. The results indicated that Ce and/or Mn doping increased active centers and oxygen vacancies, which was favorable for better catalytic activity. In the single bed, La0.9Ce0.1MnO3 had the highest hydrogen yield and syngas energy conversion efficiency of 53.6% and 55.9%, respectively. Moreover, the combination of La0.9Ce0.1CoO3 and LaCo0.9Mn0.1O3 with complex spacial distribution realized functional partition and the mixed bed obtained the highest CH4 conversion efficiency of 98.9% at v = 14 cm/s. The co-doping of Ce and Mn in Coperovskite greatly promoted methane partial oxidation and realized the combination of two functional catalysts.