Hydrocracking catalyst of improved activity

Details Hydrocracking catalyst of improved activity Hydrocracking catalyst of improved activity

1986-04-25

1987-08-25

Metz, Andrew H.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 58, 208 59, 208111, C10G 6902, C10G 4720

Patent

active

046891374

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.

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