Multi-stage process for demetalation desulfurization and dewaxing of petroleum oils

Patent · Tue Apr 02 04:00:00 EST 1985

OSTI ID:5403465

Oleck, S M; Wilson, Jr, R C

A catalytic multi-stage hydrocarbon conversion process is provided for reducing high metals content, sulfur content and pour point of the catalytically reacted residual oil by the use of sequential combination of catalytic compositions. In the first stage, the residual oil, under demetalation and desulfurization reaction conditions, is passed over a catalyst comprising about 1 to about 10 weight percent of a Group VIB metal, based on the total catalyst weight) on a supporting comprising at least 85 weight percent alumina. The resulting catalyst contains at least 65 percent of its pore volume in the 150 to 300 Angstroms diameter range or at least 60 percent of its pore volume in the 100 to 200 Angstroms diameter range. The resulting product of stage 1, under desulfurization and dewaxing conditions, is then passed over a second catalyst comprising about 1 to about 10 percent of an iron group metal and about 5 to about 25 weight percent of a Group VIB metal, based on the total catalyst weight, on a support comprising a composite of alumina and a minor amount of about 5 to about 25 weight percent of a ZSM-5 crystalline zeolite based on the total composite. The resulting catalyst contains at least 60 percent of its pore volume in the 50 to 200 Angstroms diameter range or at least 50% of its pore volume in the 30 to 100 Angstroms diameter range.

• Assignee: Mobil Oil Corporation
• Patent Number(s): US 4508615
• OSTI ID: 5403465
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DEMETALLIZATION
DESULFURIZATION
DEWAXING
ENERGY SOURCES
FOSSIL FUELS
FUELS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON COMPOUNDS
MATERIALS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
ZEOLITES