Sulfur transfer process in catalytic cracking

Patent · Tue Dec 23 04:00:00 EST 1980

OSTI ID:6608081

Gladrow, E M; Reid, T A; Schuette, W L

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 of 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 the silica-magnesia or silica-alumina support matrix.

• Assignee: Exxon Research And Engineering Co
• Patent Number(s): US 4240899
• OSTI ID: 6608081
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020800 -- Petroleum-- Waste Management
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKALINE EARTH METALS
CATALYSTS
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUE GAS
FOSSIL FUELS
FUELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INDUSTRIAL PLANTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MAGNESIUM
MATERIALS
METALS
MINERALS
PETROLEUM
PETROLEUM REFINERIES
PLATINUM
PLATINUM METALS
PYROLYSIS
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTES
ZEOLITES