Demetalation and desulfurization of residual oil utilizing hydrogen and trickle beds of catalysts in three zones

Patent · Tue Oct 18 04:00:00 EDT 1977

OSTI ID:5255404

Milstein, D; Fischer, R H

This invention is concerned with removing metal and sulfur contaminants from residual oil fractions by catalytic contact with two different catalysts in the presence of hydrogen. In this process, the oil is first contacted with the major fraction of a catalyst comprising a Group VIB metal and an iron group metal oxide, such as a mixture of cobalt and molybdenum oxides, composited with an alumina support, the catalyst having at least 60% of its pore volume in pores of 100A to 200A diameter and at least about 5% of its pore volume in pores having a diameter greater than 500A. The oil is then contacted with a second catalyst of the high surface-area, cobalt-molybdenum on alumina type having a major fraction of its pores in the 30 to 100A diameter range. Finally, the oil is contacted with the remainder of the large-pore catalyst. 6 claims, 8 figures.

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 4054508
• OSTI ID: 5255404
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT
CRYOGENIC FLUIDS
DEMETALLIZATION
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HYDROGEN
MATERIALS
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
POROSITY
POROUS MATERIALS
SEPARATION PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS