Inhibition of the Hydrogenation and Hydrodesulfurization Reactions by Nitrogen Compounds over NiMo/Al2O3

The inhibiting effect of nitrogen compounds on the hydrogenation of aromatic compounds and on the hydrodesulphurization (HDS) of dibenzothiophene (DBT) and 4,6-dimethyl dibenzothiophene (4,6 DMDBT), has been systematically investigated over a commercial NiMo hydrotreating catalyst. Amongst the diffe...

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Bibliographic Details
Published in:Catalysis letters 2008-07, Vol.123 (3-4), p.181-185
Main Authors: Beltramone, A. R., Crossley, S., Resasco, D. E., Alvarez, W. E., Choudhary, T. V.
Format: Article
Language:English
Subjects:
Aluminum oxide
Ammonia
Aromatic compounds
Catalysis
Chemistry
Chemistry and Materials Science
Dibenzothiophene
Exact sciences and technology
General and physical chemistry
Hydrodesulfurization
Hydrogenation
Industrial Chemistry/Chemical Engineering
Nitrogen
Nitrogen atoms
Nitrogen compounds
Organometallic Chemistry
Phenanthrene
Physical Chemistry
Quinoline
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The inhibiting effect of nitrogen compounds on the hydrogenation of aromatic compounds and on the hydrodesulphurization (HDS) of dibenzothiophene (DBT) and 4,6-dimethyl dibenzothiophene (4,6 DMDBT), has been systematically investigated over a commercial NiMo hydrotreating catalyst. Amongst the different nitrogen compounds considered, interestingly ammonia was found to have the strongest inhibition effect on hydrogenation as well as on hydrodesulfurization reactions. The inhibiting effects were found to increase in the order quinoline 
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-008-9468-7