کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
60280 | 1419469 | 2011 | 6 صفحه PDF | دانلود رایگان |
Nickel molybdenum carbide catalysts were prepared and their activities in the CO2 reforming of methane at a low CO2/CH4 reactant ratio were investigated using a microreactor at atmospheric pressure and at 973 K. The effect of the catalyst preparation method and the Ni/Mo ratio on the increase in catalyst life and the promotion of catalytic activity were investigated using N2 adsorption, X-ray diffraction, temperature-programmed carburization, temperature-programmed reaction, and a reforming reaction. The 25Ni75Mo catalyst that was carburized at 813 K exhibited the highest hydrogen formation ability and gave the least carbon deposition. The incomplete carburization of the Mo oxide species in the catalyst that was carburized at a lower temperature gradually gave a more active carburized species. The NiMoOxCy in the catalyst was more active in hydrogen formation during the dry reforming of methane while β-Mo2C and η-Mo3C2 were less active.
Nickel molybdenum carbide catalysts were prepared and tested for methane dry reforming. The oxycarbide, NiMoOxCy, was found to be a more active species for hydrogen formation than β-Mo2C and η-Mo3C2.Figure optionsDownload as PowerPoint slide
Journal: Chinese Journal of Catalysis - Volume 32, Issue 5, May 2011, Pages 771–776