Catalytic hydrocracking process with a crystalline aluminosilicate catalyst

Claim 1

A PROCESS FOR SELECTIVELY HYDROCRACKING A HYDROCARBON CHARGE STOCK CONSISTING OF COMPONENTS OF DIFFERENT MOLECULAR SIZE, BY CONTACTING THE CHARGE IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE BETWEEN 400*F. AND 790*F. UNDER HYDROCRACKING CONDITIONS, WITH A CRYSTALLINE ALUMINOSILICATE ZEOLITE HAVING RIGID THREE-DIMENSIONAL NETWORKS COMBINED WITH A DEHYDROGENATION COMPONENT, A MAJOR PORTION OF WHICH IS DEPOSITED WITHIN THE INERIOR OF SAID CRYSTALLINE ALUMINOSILICATE ZEOLITE BY CONTACT OF SAID ZEOLITE WITH A SOLUTION CONTAINING IONS OF METAL CORRESPONDING TO THE METAL CATION OF THE CRYSTALLINE ALUMINOSILICATE ZEOLITE UNDERGOING TREATMENT, AND IONS OF THE DEHYDROGENATION COMPONENT, THE ION RATIO OF SAID DEHYDROGENATION COMPONENT TO METAL CORRESPONDING TO THE METAL CATION OF THE CRYSTALLINE ALUMINOSILICATE ZEOLITE BEING IN THE RANGE OF 1:1 TO 1:200, WHICH ZEOLITE HAS UNIFORM INTERSTITIAL DIMENSIONS SUFFICIENTLY LARGE TO ADMIT A PORTION OF SAID COMPONENTS, BUT SUFFICIENTLY SMALL TO EXCLUDE A REMAINING PORTION OF SAID COMPONENTS, WHEREBY THE PORTION OF SAID COMPONENTS ADMITTED TO CONTACT WITH THE ACTIVE DEHYDROGENATION SURFACES PREFERENTIALLY UNDERGO HYDROCRACKING TO THE SUBSTANTIAL EXCLUSION OF THE REMAINING PORTION OF SAID HYDROCARBON CHARGE.