Process for demetallation and desulfurization of heavy hydrocarbons

Patent · Tue Oct 27 04:00:00 EST 1981

OSTI ID:5853811

Hensley, A L; Quick, L M

Disclosed is a two-stage catalytic process for hydrodemetallation and hydrodesulfurization of heavy hydrocarbon streams containing asphaltenes and a substantial amount of metals. The first stage of this process comprises contacting the feedstock in a first reaction zone with hydrogen and a demetallation catalyst comprising hydrogenation metal selected from group vib and/or group VIII deposed on a large-pore, high surface area inorganic oxide support; the second stage of the process comprises contacting the effluent from the first reaction zone with a catalyst consisting essentially of hydrogenation metal selected from group vib deposed on a smaller-pore, catalytically active support comprising alumina, said secondstage catalyst having a surface area within the range of about 150 m2/gm to about 300 m2/gm, having a majority of its P volume in pore diameters within the range of about 80 a to about 130 a, and the catalyst has a pore volume within the range about 0.4 cc/gm to about 0.9 cc/gm.

• Assignee: Standard Oil Co (Indiana)
• Patent Number(s): US 4297242
• OSTI ID: 5853811
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ASPHALTENES
ASPHALTS
BITUMENS
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DEMETALLIZATION
DESULFURIZATION
ELEMENTS
HYDROCARBONS
HYDROGENATION
METALS
MICROSTRUCTURE
MOLYBDENUM
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
POROSITY
REFRACTORY METALS
SEPARATION PROCESSES
SIZE
TAR
TRANSITION ELEMENTS