Hydrocracking catalyst and hydrocracking process

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 SiO2/Al2O3 molar ratio of at least 6 and which has been treated by (...

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Bibliographische Detailangaben
Hauptverfasser:	LONG, GARY N, WOLYNIC, EDWARD T, GORTSEMA, FRANK P, SPRINGER, ALBERT R, BEST, DONALD F, PELLET, REGIS J, RABO, JULE A
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	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 SiO2/Al2O3 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 SiO2/Al2O3 molar ratio of at least about 9 and a unit cell dimension (ao) of less than about 24.55 ANGSTROM , and the steam treatment is carried out for a period sufficient to cause a decrease of not more than about 0.1 ANGSTROM in the unit cell dimension, thereby producing a Y-type zeolite product having a SiO2/Al2O3 molar ratio of at least about 9 and a unit cell dimension of less than about 24.45 ANGSTROM .