Catalytic hydrodenitrogenation

Bhinde, M. V., Ph.D.Catalytic hydrodenitrogenation. Thesis. University of Delaware, 1979. 

Satterfield, C. N., and Yang, S. H., Catalytic Hydrodenitrogenation of Quinoline in A Trickle-Bed Reactor. Comparison With Vapor Phase Reaction. Ind. Eng. Chem. Process Des. Dev, 1984. 23 pp. 11-19. 

Actually, catalytic hydrodenitrogenation is an industrially applicable process for reducing the level of nitrogen content in mineral feed-stocks. For this reason, catalytic pyrolysis was investigated as an alternative process also, in order to minimize the problems of heterogeneity of the products (132). 

Prins summarizes advances in understanding of the reactions in catalytic hydrodenitrogenation (HDN), which is important in hydroprocessing of fossil fuels. Hydroprocessing is the largest application in industrial catalysis based on the amount of material processed. The chapter addresses the structures of the oxide precursors and the active sulfided forms of catalysts such as Ni-promoted Mo or W on alumina as well as the catalytically active sites. Reaction networks, kinetics, and mechanisms (particularly of C-N bond rupture) in HDN of aliphatic, aromatic, and polycyclic compounds are considered, with an evaluation of the effects of competitive adsorption in mixtures. Phosphate and fluorine promotion enhance the HDN activity of catalysts explanations for the effect of phosphate are summarized, but the function of fluorine remains to be understood. An account of HDN on various metal sulfides and on metals, metal carbides, and metal nitrides concludes this chapter. 

Catalytic hydrodenitrogenation (HDN) and hydrodeoxygenation (HDO) are the processes of removing nitrogen and oxygen, respectively, from petroleum feedstocks to provide more processable and environmentally compatible liquid fuels. A review of heterogeneous HDN process and homogeneous models summarized the research till ca. 1997. ... 

FIGURE 8.19 Reaction network and rate constants at 375°C for quinoline HDN. Source C. N. Satterfield and S. H. Yang, Catalytic Hydrodenitrogenation of Quinoline in a Trickle-Bed Reactor. Comparison with Vapor Phase Reaction, Industrial and Engineering Chemistry Product Research and Development 23 11-19 (1984). With permission. 

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