Selectivity of molybdenum catalyst in hydrodenitrogenation, hydrodesulfurization, and hydrodeoxygenation: effects of sulfur and oxygen compounds on acridine hydrodenitrogenation
The selectivity of a Mo/Al/sub 2/O/sub 3/ catalyst in denitrogenation, desulfurization, and deoxygenation based on the retarding effect of sulfur and oxygen compounds on acridine hydrodenitrogenation has been studied. The experiments were done in a continuous flow microreactor at 280-380/sup 0/C and 10.1 MPa total pressure. Sulfidation of the reduced catalyst hindered the denitrogenation of perhydroacridine to dicyclohexylmethane. The sulfur and oxygen compounds, except for a small amount of CS/sub 2/, depressed the denitrogenation at higher temperatures where the intermediate hydrogenations of acridine to perhydroacridine attained equilibria. At lower temperatures, all the additives affected the hydrogenation of octahydroacridine to perhydroacridine which was not at equilibrium and resulted in a decrease of denitrogenation. The kinetics and reaction mechanism of the retarding effects are also discussed.
- Research Organization:
- Tokyo Univ. of Agriculture and Technology, Japan
- OSTI ID:
- 5667326
- Journal Information:
- J. Catal.; (United States), Vol. 101:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
04 OIL SHALES AND TAR SANDS
ACRIDINES
DENITRIFICATION
MOLYBDENUM
CATALYTIC EFFECTS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CHEMICAL REACTION KINETICS
COAL LIQUIDS
DESULFURIZATION
HYDROGENATION
OXYGEN COMPOUNDS
PETROLEUM
REDUCTION
SHALE OIL
SULFIDATION
SULFUR COMPOUNDS
ALUMINIUM COMPOUNDS
AROMATICS
AZAARENES
AZINES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
KINETICS
LIQUIDS
METALS
MINERAL OILS
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
PYRIDINES
REACTION KINETICS
TRANSITION ELEMENTS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
020400 - Petroleum- Processing
040404 - Oil Shales & Tar Sands- Purification