Hydrogen spillover effect between Ni2P and MoS2 catalysts in hydrodesulfurization of dibenzothiophene

Hydrogen spillover effect between Ni2P and MoS2 catalysts in hydrodesulfurization of dibenzothiophene

Type	Journal Article
Author	Li-hua LIU
Author	Shu-qun LIU
URL	http://www.sciencedirect.com/science/article/pii/S1872581315300220
Volume	43
Issue	6
Pages	708-713
Publication	Journal of Fuel Chemistry and Technology
Date	June 2015
Abstract	Researchers studied the hydrodesulfurization of dibenzothiophene over physically separated Ni2P//MoS2 catalyst beds. Results revealed that the hydrogen spillover effect appears between the Ni2P/Al2O3 and MoS2/Al2O3 catalysts in the hydrodesulfurization reaction. This can significantly enhance the concentration of active sites and the hydrodesulfurization rate over the MoS2 catalyst. The spillover factor on Ni2P//MoS2 is slightly higher than that on NiSx//MoS2, due to the higher hydrogen dissociation activity of Ni2P. Consequently, Ni2P is a superior promoter to NiSx for the MoS2 catalyst.