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Sulfur transfer cracking catalyst

Patent ·
OSTI ID:6366868
; ;
An improved catalyst, and process utilizing said catalyst for catalytically cracking a sulfur-containing hydrocarbon feed, and for the fixation of sulfur by the catalyst and transfer thereof from the catalyst regeneration zone to the reaction zone of a catalytic cracking unit. The catalyst comprises an admixture of composite particles, one present in major concentration for providing principally cracking and combustion promoting functions , and the other present in minor concentration for providing principally sulfur fixation and transfer functions. The particle present in major concentration, on the one hand, is constituted essentially of one or more group VIII noble metals, preferably platinum, composited with a support comprised of a crystalline alumino silicate component distributed in an active cracking catalyst matrix, suitably one constituted of silica-alumina. The minor component particle, on the other hand, is comprised of one or more group II-a metals, preferably magnesium, composited with a support, suitably silica-magnesia or silica-alumina, which may also contain a crystalline aluminosilicate zeolite component dispersed within thesilica-magnesia or silica-alumina support matrix.
Assignee:
Exxon Research And Engineering Co
Patent Number(s):
US 4243557
OSTI ID:
6366868
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
020800* -- Petroleum-- Waste Management
AIR POLLUTION CONTROL
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
CRACKING
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUE GAS
GASEOUS WASTES
HYDROCARBONS
INDUSTRIAL PLANTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MAGNESIUM
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PETROLEUM REFINERIES
PLATINUM
PLATINUM METALS
POLLUTION CONTROL
PYROLYSIS
REMOVAL
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTES
ZEOLITES