Pyridine hydrodenitrogenation

The use of nitrides, along with sulfides and carbides, as catalysts for hydroprocessing has recently been extensively reviewed by Furimsky and will not be discussed in detail here. Subsequently, Al-Megren et have published a comparison of the activities of bulk CoMo carbide, oxide, nitride and sulfide catalysts for pyridine hydrodenitrogenation. Of these, the sulfide catalysts were reported to possess more stable activity, with the carbide being next, followed... 

Gourdiaan et al. (77) studied C0M0/AI2O3 catalyst for pyridine hydrodenitrogenation at about 8 MPa pressure and 523-673 K... 

Satterfield, C.N. Cocchetto, J.F. Pyridine hydrodenitrogenation An equilibrium limitation on the formation of pyridine intermediate, TCT/P J., 1975,21(6), 1107-1111. Seifert, W.K. Teeter, R.M Identification of polycyclic aromatic and heterocyclic crude oil carboxylic acids,y4/ia7. Chem., 1970,42,750-758. 

Gopalan, U., Hydrodenitrogenation of Pyridine over Alumina Supported Platinum Catalyst. Master of Applied Science Thesis. University of Otawa, Chemical Engineering. 1998, p. 69. 

Such rf-N,C pyridines can also undergo bond cleavages and the reactions provide models for hydrodenitrogenation catalysis.105... 

Preparation and catalytic properties of Ir/alumina and Ir-Mo/alumina sulfide catalysts were studied in hydrodenitrogenation (HDN) of pyridine and hydrodesulfurization (HDS) of thiophene. The Ir added to a Mo/alumina catalyst in amount... 

Transition metal sulfides of the 3" row show high activity in hydrotreating reactions and some of them are studied as potential promoters of conventional catalysts in order to improve their performance. Carbon supported Pt sulfide was highly active in hydrodesulfurization (HDS) of thiophene and hydrodenitrogenation (HDN) of quinoline and pyridine [1,2]. The Pt/silica-alumina sulfide catalyst has been investigated as the promising candidate for deep HDS [3]. 

Hydrodenitrogenation. Heterocyclic compounds containing nitrogen in coal liquids are either basic (pyridines, quinolines and acridines) or non-basic (pyrroles, indoles and carbazoles). Attempts have been made to study these model compounds to highlight the mechanism involved in hydrodenitrogenation process. 

Mcllvried, H.G. "Kinetics of the Hydrodenitrogenation of Pyridine." Paper presented at Houston Meeting of the ACS Division of Petr. Chem. (Feb. 1970). 

Weller KJ, Filippov I, Brig PM, Wigley DE. Pyridine degradation intermediates as models for hydrodenitrogenation catalysis preparation and properties of a metal-lapyridine complex. Organometallics. 1998 17 322-329. 

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