Cracking catalyst and process

Patent · Tue Aug 23 04:00:00 EDT 1988

OSTI ID:6539957

Walker, D W; Schaffer, A M

This patent describes a cracking process comprising the steps of (A) contacting a hydrocarbon-containing feed stream having an initial boiling point of at least about 400F, measured at atmospheric pressure conditions, with a cracking catalyst composition comprising (a) zeolite and (b) a matrix material, in which the zeolite is embedded, comprising aluminum phosphate, wherein the matrix material is substantially free of alumina and magnesia, under such cracking conditions as to obtain at least one liquid product stream having a lower initial boiling point and a higher API gravity than the feed stream; (B) separating the cracking catalyst composition, which has been used in step (A), from formed gases and at least one liquid product; (C) exposing the separated cracking catalyst composition obtained in step (B) to flowing steam under such conditions as to strip liquids which are adhered to the separated catalyst composition; (D) heating the steam-stripped cracking catalyst composition obtained in step (C) in a free oxygen containing gas under such conditions as to burn off substantially all coke deposited on the steam-stripped cracking catalyst composition; and (E) recycling at least a portion of the regenerated catalyst composition obtained in step (D) to the cracking zone of step (A).

• Assignee: Phillips Petroleum Co., Bartlesville, OK
• Patent Number(s): US 4765884
• OSTI ID: 6539957
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM PHOSPHATES
API GRAVITY
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DENSITY
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PYROLYSIS
REGENERATION
THERMOCHEMICAL PROCESSES
ZEOLITES