Quinoline hydrodenitrogenation kinetics and reaction inhibition
Quinoline hydrodenitrogenation kinetics and reaction inhibition are studied in a unique high-pressure liquid-phase flow microreactor and in a batch autoclave at 350/sup 0/C and 34 atm over presulfided commercial nickel-molybdenum/..gamma..-alumina catalysts. Hydrodenitrogenation of quinoline and its methyl-substituted derivatives involved hydrogenation of the nitrogen-containing ring followed by carbon-nitrogen bond scission. Methyl substitution had only secondary effects on the hydrodenitrogenation kinetics. Quinoline inhibited hydrodesulfurization, carbon-nitrogen bond scission, and particularly hydrogenation. The inhibition pattern indicated that hydrogenation of aromatics and of the aromatic ring in nitrogen- and sulfur-containing compounds occurs on the same catalytic site, whereas direct sulfur removal occurs on a different site.
- OSTI ID:
- 6229440
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AROMATICS
AUTOCLAVES
AZAARENES
AZINES
CATALYSTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMPLEXES
DESULFURIZATION
HETEROCYCLIC COMPOUNDS
HYDROGENATION
INHIBITION
KINETICS
MOLYBDENUM COMPLEXES
NICKEL COMPLEXES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
QUINOLINES
REACTION KINETICS
TRANSITION ELEMENT COMPLEXES