Citation: Wen Yu ZHANG, Xin Ping WANG, Heng Fang JIN, Qin XIN. Ni/Mo₂ N as a Highly Active Hydrodenitrogenation Catalyst[J]. Chinese Chemical Letters, ;1996, 7(9): 849-852. shu

Ni/Mo₂ N as a Highly Active Hydrodenitrogenation Catalyst

a State key Laboratory of Catalysis, Dalian Institute of Chemical Physiscs, Chinese Academy Of Sciences, Dalian 116023;
b Inner Mongolia Polytechnic Universal, Huhhot 010062

Received Date: 26 May 1995

Fund Project: Project supported by China Postdoctoral Science Foundation.

The catalysts were prepared by the temperature programmed reaction (TPR) of MoO₃ with NH₃ at various temperatures in the range of 573K~973K, and their hydrodenitrogenation (HDN) activities were tested in situ. It is shown that molybdenum nitride (Mo₂N) was formed above 923K and its intermediate MoO₂ formed at about 573~623K under the rapid (5K/min. ) TPR conditions. Mo₂N is the most active species for pyridine HDN among MoO₃, MoO₂, MoS₂, and Mo₂N. Moreover, it can be promoted by adding Ni component. It is shown that the Ni/Mo₂N catalyst prepared by adding some NiO into the precursor MoO₃ has a steady HDN activity which is far higher than that of the commercial sulfided NiMo/Al₂O₃ (HR346) catalyst.
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