Selective catalytic and kinetic studies on oxydehydrogenation of ethane with CO2 over lanthanide metal catalysts

• DOI: 10.5802/crchim.4
• Publication Date: 2020-05-06T16:30:43Z
• Authors: Peng Wang; Ziqi Wang; Zhongqing Yang; Zhilei Liu; Jingyu Ran; Mingnv Guo
• Keywords: Hydrogenolysis

Single metal catalysts with different active components (La, Sm, Ce) and La loadings (5%, 10%, 15%) were prepared. Oxydehydrogenation of C2H6 CO2 over the above was studied by catalyst activity experiments characterization tests. The results indicate that homogeneous reaction CO2/C2H6 is coupling ethane pyrolysis hydrogenolysis. Dehydrogenation has better selectivity than reforming on La/Sm/Ce-based catalysts; Sm exhibits best catalytic due to carbon deposition resistance many oxygen vacancies. conversion 10% Sm/SiO2 42.75% at 700 °C, but C2H4 lowest. Because existence Ce 4+ , selectivity; it potential modify catalyst, its shows performance. activation energy La/SiO2 83.99 kJ/mol, 96.84% optimum loading between 15%.