Hydrocracking catalyst of improved activity
US4604373A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1984 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Aug 24, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.