Hydrotreating process employing a three-stage catalyst system wherein a titanium compound is employed in the second stage
A process is described for the catalytic hydrotreating of a residual oil-containing feedstock comprising the use of a catalyst bed system comprising: (a) a first catalyst in a first catalyst bed consisting essentially of alumina promoted with about 0.5 to about 2 weight percent cobalt, about 7 to about 10 weight percent molybdenum, and about 0.5 to about 2 weight percent nickel, based on the total weight of the first catalyst, followed by (b) a second catalyst in a second catalyst bed consisting essentially of alumina promoted with about 6 to about 12 weight percent molybdenum, about 2 to about 5 weight percent nickel, and about 3 to about 10 weight percent titanium, based on the total weight of the second catalyst, which is followed by (c) a third catalyst in a third catalyst bed consisting essentially of alumina promoted with about 2 to about 6 weight percent nickel, and about 5 to about 20 weight percent molybdenum, based on the total weight of the thrid catalyst, wherein the feedstock is first contacted with the first catalyst bed, then with the second catalyst bed, and then with the third catalyst bed under suitable hydrotreating conditions.
- Assignee:
- Phillips Petroleum Co., Bartlesville, OK
- Patent Number(s):
- US 4657663
- OSTI ID:
- 6775596
- Resource Relation:
- Patent File Date: Filed date 24 Apr 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PETROLEUM RESIDUES
HYDROCRACKING
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC EFFECTS
COBALT COMPOUNDS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
QUANTITY RATIO
TITANIUM COMPOUNDS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PYROLYSIS
REFRACTORY METAL COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
020400* - Petroleum- Processing