氮化合物在加氢催化剂上的吸附研究

Study on Adsorption of Nitrogen Containing Compounds on Hydrogenation Catalyst

以喹啉为代表,考察了氮化合物在Ni-Mo/Al_2O_3加氢催化剂上的吸附特性。结果表明,在常温常压下,喹啉仅以N原子吸附;而在高温高压下,除了N原子吸附外,无N的芳环也要发生吸附。

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.