Citation: Qiherima, Hui Yuan, Hui Feng Li, Yun Hong Zhang, Guang Tong Xu. Investigation on the active phase of CoMo catalyst for selective HDS by low temperature in situ FT-IR[J]. Chinese Chemical Letters, ;2011, 22(3): 366-369. doi: 10.1016/j.cclet.2010.10.045 shu

Investigation on the active phase of CoMo catalyst for selective HDS by low temperature in situ FT-IR

a The Institute for Chemical Physics, Beijing Institute of Technology, Beijing 100081, China;
b Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China;
c Department of Pharmacy, Inner Mongolia Medical College, Hohhot 010059, China

Received Date: 29 June 2010

Fund Project: The authors gratefully acknowledge the founding of the State Key Project (Nos. 2006CB202506 and 2007BAE43B01) and the State Key Laboratory of Catalytic Material and Reaction Engineering (RIPP, SINOPEC).

The CoMo/Al₂O₃ catalysts with different metal loading were studied by low temperature in situ FT-IR using CO as probe molecule which appears to be a powerful method by giving rise to signals specific for unpromoted and promoted Mo sites. The result revealed that the increase of C0M0S phase on the catalyst surface improves the HDS activity and selectivity. The ratio of active site number of CoMoS and MoS₂ correlates linearly with HDS selectivity, which provides an effective tool for developing industrial selective HDS catalysts.
- FT-IR,
- CO,
- C0M0S,
- HDS selectivity
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