Development of Unique Catalysts for Hydrodenitrogenation of Coal-Derived Liquids. Eleventh Quarterly Report, March 15, 1981-September 15, 1981

摘要

Several catalysts have been prepared and tested with the emphasis on understanding the role of catalyst support on the carbon-nitrogen bond scission reaction. Hydrodenitrogenation of quinoline has been studied using catalysts containing Ni-Mo on titania-alumina support with different compositions. Preliminary results from these studies indicate that the 20% TiO sub 2 /80% Al sub 2 O sub 3 support leads to the most active catalyst. Based on these results, we can speculate that the hydrogenolysis site may involve an acidic group adjacent to a transition metal ion on the surface of the catalyst, and that the C-N bond scission reaction occurs via a Hoffman E-2 process. These results support the conclusion that the HDN activity increases with an increase in support acidity. Activated carbon (ME KOG) as a support was most recently evaluated and had a very inferior activity probably attributable both to surface (nonacidic) and pore (too small) characteristics. (ERA citation 07:055983)