Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1991-03-12
1992-05-05
Breneman, R. Bruce
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502 60, 502 77, 502 79, 502 85, 502 86, 502214, 208114, 208120, B01J 2908, C10G 1105
Patent
active
051107767
ABSTRACT:
A process for preparing a zeolite containing catalyst which has improved attrition resistance, and causes improved octane with no appreciable change in dry gas and coke make when used during catalytic cracking processes is disclosed. The catalyst is prepared by modifying the zeolite with a phosphate containing solution. The zeolite preferably includes an REY large pore zeolite. Treatment of the zeolite is best accomplished in an aqueous solution, at a pH range from about 2 to about 6, containing a water soluble phosphate compound. The phosphate treatment of the zeolite is carried out by deagglomerating the zeolite in an aqueous mixture in the presence of an aqueous phosphate containing solution, such as an aqueous solution of ammonium monohydrogen phosphate. The aqueous mixture containing phosphate modified zeolite is then combined with matrix precursors to form a slurry. The slurry is preferably spray dried to form the catalyst having a diameter less than 200 microns. The novel catalyst is used in the catalytic cracking of hydrocarbons in an FCC, moving bed or other catalytic cracking apparatus. The catalyst can be used for treating resids in which the hydrocarbon feedstock has a higher average molecular weight, a lower API gravity and/or a higher metals content than gas oil.
REFERENCES:
patent: 3354096 (1967-11-01), Young
patent: 3867279 (1975-02-01), Young
patent: 4180471 (1979-12-01), Schrodter et al.
patent: 4228036 (1980-10-01), Swift et al.
patent: 4325813 (1982-04-01), Brown et al.
patent: 4379761 (1983-04-01), Olson et al.
patent: 4430199 (1984-02-01), Durante et al.
patent: 4454241 (1984-06-01), Pine et al.
patent: 4456780 (1984-06-01), Young
patent: 4498975 (1985-02-01), Pine et al.
patent: 4567152 (1986-01-01), Pine
patent: 4584091 (1986-04-01), Pine
patent: 4605637 (1986-08-01), Chang et al.
patent: 4716135 (1987-12-01), Chen
patent: 4728629 (1988-03-01), Bertus et al.
patent: 4839319 (1989-06-01), Schuette et al.
patent: 4873211 (1989-10-01), Walker et al.
patent: 4970183 (1990-11-01), Nakamoto et al.
patent: 4975180 (1990-12-01), Eberly
patent: 4977122 (1990-12-01), Eberly
Gitzen et al., "Phosphate-Bonded Alumina Castables: Some Properties and Applications", Ceramic Bulletin, 35 (6), 217-223 (1956).
Kingery, "Fundamental Study of Phosphate Bonding in Refractories: I. Literature Review, II, Cold-Setting Properties, III. Phosphate Adsorption by Clay and Bond Migration", Journal of American Ceramics Society, 33 (8), 239-250 (1950).
Chitnis Girish K.
Herbst Joseph A.
Breneman R. Bruce
McKillop Alexander J.
Mobil Oil Corp.
Santini Dennis P.
Speciale Charles J.
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