Effect of Pr and Ce on the activity of Ni<sub>2</sub>P catalyst prepared by low temperature reduction in hydrodesulphurization

SONG Hua; ZHANG Fu-yong; XU Xiao-wei; SONG Hua-lin; LI Feng

Volume 43 Issue 09

Sep. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(09): 1128-1133

SONG Hua, ZHANG Fu-yong, XU Xiao-wei, SONG Hua-lin, LI Feng. Effect of Pr and Ce on the activity of Ni2P catalyst prepared by low temperature reduction in hydrodesulphurization[J]. Journal of Fuel Chemistry and Technology, 2015, 43(09): 1128-1133.

Citation:

SONG Hua, ZHANG Fu-yong, XU Xiao-wei, SONG Hua-lin, LI Feng. Effect of Pr and Ce on the activity of Ni₂P catalyst prepared by low temperature reduction in hydrodesulphurization[J]. Journal of Fuel Chemistry and Technology, 2015, 43(09): 1128-1133.

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Effect of Pr and Ce on the activity of Ni₂P catalyst prepared by low temperature reduction in hydrodesulphurization

1.
Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing 163318, China;
2.
Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province, Mudanjiang Medical University, Mudanjiang 157011, China

Received Date: 2015-02-16
Rev Recd Date: 2015-05-14
Publish Date: 2015-09-30

Abstract

Abstract

The Ni₂P-L, Pr-Ni₂P-L and Ce-Ni₂P-L catalysts were prepared by thermal decomposition of hypophosphites and reduced at low temperature; they were characterized by X-ray diffraction (XRD), temperature programmed reduction with hydrogen (H₂-TPR), nitrogen physisorption, CO adsorption, and X-ray photoelectron spectroscopy (XPS). The effect of the rare earth praseodymium (Pr) or cerium (Ce) elements on the activity of Ni₂P-L catalyst in hydrodesulfurization (HDS) was investigated with dibenzothiophene (DBT) as a model compound. The results indicated that the addition of Pr and Ce can suppress the formation of Ni₅P₄ and other mixed crystal phases and then promote the formation of Ni₂P phase. After adding the rare earth metals, the selectivity to BP over the Ni₂P catalyst is enhanced greatly, though the total HDS activity is decreased slightly.
- hypophosphites,
- low temperature thermal decomposition,
- Ni₂P,
- hydrodesulfurization,
- dibenzothiophene,
- praseodymium,
- cerium

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References(15)

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