Promoting effect of potassium on sulfur resistance in benzene hydrogenation over Ni<sub>2</sub>Mo<sub>3</sub>N

CHU Qi; FENG Jie; ZHANG Li-li; XU Kun; XIE Ke-chang

Volume 43 Issue 02

Feb. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(02): 208-213

CHU Qi, FENG Jie, ZHANG Li-li, XU Kun, XIE Ke-chang. Promoting effect of potassium on sulfur resistance in benzene hydrogenation over Ni2Mo3N[J]. Journal of Fuel Chemistry and Technology, 2015, 43(02): 208-213.

Citation:

CHU Qi, FENG Jie, ZHANG Li-li, XU Kun, XIE Ke-chang. Promoting effect of potassium on sulfur resistance in benzene hydrogenation over Ni₂Mo₃N[J]. Journal of Fuel Chemistry and Technology, 2015, 43(02): 208-213.

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Promoting effect of potassium on sulfur resistance in benzene hydrogenation over Ni₂Mo₃N

State Key Laboratory Training Base of Coal Science and Technology, Key Laboratory of Coal Science and Technology for Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 2014-10-22
Rev Recd Date: 2014-12-05
Publish Date: 2015-02-28

Abstract

Abstract

To improve sulfur resistance of bimetallic nitrides in benzene hydrogenation reaction, K-promoted (K-Ni₂Mo₃N) catalysts were prepared to investigate the effect of potassium on sulfur resistance. K-Ni₂Mo₃N expressed a higher sulfur resistance than Ni₂Mo₃N when used in benzene hydrogenation with 0.01% thiophene condition. Combined XPS and H₂-TPR characterization results, it could be concluded the potassium species might donate electrons to nickel species to make nickel species an electron-enriched state, which might weaken the interaction bewteen thiophene and nickel species. The TPD-MS results also confirmed the potassium species weakened the thiophene adsorption on the catalyst surface. The critical parameter of sulfur resistance are the suitable adsorption strength which could be handled by the electron condition of active site.
- Ni₂Mo₃N,
- potassium,
- sulfur resistance,
- thiophene,
- benzene hydrogenation

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References

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