Ni//Mo synergism via hydrogen spillover, in pyridine hydrodenitrogenation
The pyridine hydrodenitrogenation (HDN) over physically separated stacked Ni//Mo beds was investigated using a continuous-flow high pressure (3 MPa) stainless steel microreactor. Results prove the existence of synergism between physically separated beds of Ni-/γ-Al2O3 and Mo/γ-Al2O3 catalysts for the pyridine hydrodenitrogenation reaction. This synergism is explained by the formation of hydrogen spillover. Product analysis of the pyridine hydrodenitrogenation over Ni//Mo stacked beds suggested that the hydrogen spillover modified the active sites of the MoS2 by increasing the hydrogenation sites.
Journal: Catalysis Communications - Volume 11, Issue 14, 25 August 2010, Pages 1154–1156