Study on Adsorption of Nitrogen Containing Compounds on Hydrogenation Catalyst

Adsorption mechanism of nitrogen containing compounds, using quinoline as a representive, on hydrogenation catalyst Ni-Mo/Al_2O_3 was studied. Experimental result shows that adsorption of quinoline occurs only through the nitrogen atom at normal temperature under atmospheric pressure, while through both the aromatic ring without nitrogen and the nitrogen atom in the heterocyclic ring at elevated temperatures under higher pressures.