Fluid catalytic cracking catalyst

Details Fluid catalytic cracking catalyst Fluid catalytic cracking catalyst

1982-06-02

1983-11-08

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And group iii or rare earth metal or lanthanide containing

502 76, 502246, B01J 2916, B01J 2104, B01J 2318

Patent

active

044141386

ABSTRACT:
An active alumina composite and a cracking catalyst comprising the composite useful in hydrocarbon conversion processes. The composite and catalyst are particularly useful in fluid catalytic cracking processes, wherein sulfur-containing feedstock is subjected to catalytic conversion at a temperature in the range of about 800.degree. F. to about 1300.degree. F. in the presence of the catalyst which becomes sulfided during the conversion reaction and thereafter the catalyst is subjected to regeneration by burning sulfur-containing coke from the catalyst with an oxygen-containing gas at a temperature within the range of about 800.degree. to 1500.degree. F. The novel catalyst composition comprises 90 to 99 weight percent cracking catalyst and 1 to 10 weight percent of a composite of alumina and bismuth oxides containing 0.05 to 25 weight percent bismuth, calculated as the metal. This catalyst composition has the ability to remove sulfur oxides from gases to a greater extent than catalyst compositions comprising cracking catalyst and active alumina. The composition may comprise also platinum or a platinum group metal as a carbon monoxide combustion promoter.

REFERENCES:
patent: 3397154 (1968-08-01), Talsma
patent: 4071436 (1978-01-01), Blanton et al.
patent: 4115250 (1978-09-01), Flanders et al.
patent: 4115251 (1978-09-01), Flanders et al.

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