04897178 is referenced by 57 patents and cites 33 patents.

A process for hydrocracking a crude oil feed, a hydrocracking catalyst employed therein, and a process for the preparation of this catalyst are disclosed. The hydrocracking catalyst comprises a zeolitic aluminosilicate which has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least 6 and which has been treated by (i) thermal treatment at an effective temperature and for an effective time in the presence of steam, followed by (ii) ion-exchange with a solution containing ammonium ion; and (2) an effective amount of a hydrogenation component. In a preferred embodiment, the starting crystalline zeolitic aluminosilicate is a Y-type zeolite having an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least about 9 and a unit cell dimension (a.sub.o) of less than about 24.55 .ANG., and the steam treatment is carried out for a period sufficient to cause a decrease of not more than about 0.1 .ANG. in the unit cell dimension, thereby producing a Y-type zeolite product having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least about 9 and a unit cell dimension of less than about 24.45 .ANG..

Title
Hydrocracking catalyst and hydrocracking process
Application Number
490951
Publication Number
4897178
Application Date
January 13, 1988
Publication Date
January 30, 1990
Inventor
Albert R Springer
Mt. Vernon
NY, US
Frank P Gortsema
Pleasantville
NY, US
Edward T Wolynic
Scarsdale
NY, US
Jule A Rabo
Armonk
NY, US
Regis J Pellet
Cronton-on-Hudson
NY, US
Gary N Long
Putnam Valley
NY, US
Donald F Best
Mahopac
NY, US
Agent
Vincent J Vasta Jr
Assignee
UOP
IL, US
IPC
C10G 69/10
C10G 47/20
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