Hydrocracking catalyst of improved activity

Details Hydrocracking catalyst of improved activity Hydrocracking catalyst of improved activity

1984-08-24

1986-08-05

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 66, 502 73, 502 74, 502 79, B01J 2910

Patent

active

046043730

ABSTRACT:
A catalyst composition composed of a crystalline aluminosilicate Y zeolite, normally having a silica-to-alumina mole ratio of about 6.2 or above, in combination with a porous, inorganic refractory oxide. The Y zeolite contains ion-exchanged rare earth cations and ion-exchanged Group VIII noble metal cations. The combination of the zeolite and the refractory oxide contains between 4.5 weight percent and about 6.0 weight percent water. Such a catalyst containing the recited amount of water has been found to have consistently high activities when used as a catalyst in a hydrocracking process. The Y zeolites used as part of the catalyst are typically prepared by contacting an ammonium-exchanged Y zeolite with an aqueous solution of ammonium fluorosilicate.

REFERENCES:
patent: 3375206 (1968-03-01), Shaw
patent: 3535227 (1970-10-01), Kittrell
patent: 3546100 (1970-12-01), Yan
patent: 4002575 (1977-01-01), Ward
patent: 4097364 (1978-06-01), Egan
patent: 4107031 (1978-08-01), Ward
patent: 4149960 (1979-04-01), Garwood et al.
patent: 4402866 (1983-09-01), Shihabi
patent: 4429053 (1984-01-01), Ward
patent: 4456693 (1984-06-01), Welsh
patent: 4503023 (1985-03-01), Breck et al.
Yan, T. Y., "The Promotional Effect of Water in Hydrocracking," Journal of Catalysis, vol. 25, 1972, pp. 204-211.

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