Hydrodenitrogenation of Quinoline and Decahydroquinoline Over a Surface Nickel Phosphosulfide Phase
The hydrodenitrogenation (HDN) of quinolone (Q) and decahydroquinoline (DHQ) over a Ni2P catalyst prepared by the reduction of a conventional phosphate precursor and a surface nickel phosphosulfide phase (Ni2P–S) obtained by the reduction of Ni2P2S6 were studied. A reaction network of the HDN of Q over Ni2P was proposed. Both the hydrogenation and C–N bond cleavage activities of Ni2P were enhanced after the introduction of sulfur. The surface sulfur species of Ni2P–S changed significantly after the HDN of DHQ. The thiolate or thiol species were detected as the major sulfur-containing species in the surface of the spent Ni2P–S catalyst.
KeywordsNi2P Nickel phosphosulfide phase Quinoline Decahydroquinoline Hydrodenitrogenation Hydrogenation C–N bond cleavage
This work was financially supported by the Natural Science Foundation of China (21473017 and 21673029), the United Funds of NSFC-Liaoning (U1508205), and the Liaoning Provincial Natural Science Foundation of China (201602158).
- 2.Oyama ST, Clark P, Wang X, Shido T, Iwasawa Y, Hayashi S, Ramallo-Lopez JM, Requejo FG (2002) Structural characterization of tungsten phosphide (WP) hydrotreating catalysts by X-ray absorption spectroscopy and nuclear magnetic resonance spectroscopy. J Phys Chem B 106:1913–1920CrossRefGoogle Scholar
- 13.Rodriguez JA, Kim J-Y, Jonathan H, Sawhill C, Stephanie J, Bussell ME (2003) Physical and chemical properties of MoP, Ni2P, and MoNiP hydrodesulfurization catalysts: time-resolved X-ray diffraction, density functional, and hydrodesulfurization activity studies. J Phys Chem B 107:6276–6285CrossRefGoogle Scholar
- 27.Levenspiel O (1998) Chemical reaction engineering. Wiley, New YorkGoogle Scholar
- 28.Prins R (2001) Catalytic hydrodenitrogenation. Adv Catal 46:399–464Google Scholar