Hydrogenation of a hydrocarbon oil feed for use in a catalytic cracking process to produce gasoline

Claim 1

THE PROCESS OF PRODUCING GASOLINE FROM PETROLEUM FRACTIONS WHICH COMPRISES HYDROGENATING SAID PETROLEUM FRACTIONS AT TEMPERATURES OF ABOUT 700* TO 800*F. USING A SPACE VELOCITY OF ABOUT 1.5 AND A HYDROGEN-TO-HYDROCARBON RATIO OF ABOUT 4.0/1 IN THE PRESENCE OF A CATALYST CONSISTING OF ABOUT 3.4 WEIGHT PERCENT OF COBALT, 2.3 WEIGHT PERCENT OF NICKEL ON A SUPPORT CONTAINING FROM ABOUT 75 TO 90 WEIGHT PERCENT OF SILICA AND FROM ABOUT 25 TO 10 WEIGHT PERCENT OF ALUMINA, SEPARATING THE HYDROGENATED PRODUCTS AND SUBJECTING THE HYDROGENATED PRODUCTS TO CATALYTIC CRACKING IN THE PRESENCE OF A SILICAALUMINA CRACKING CATALYST CONTAINING ABOUT 17 WEIGHT PERENT OF ALUMINA AT TEMPERATURES OF ABOUT 800* TO 1000*F. USING SUBSTANTIALLY ATOMOSPHERIC PRESSURE, A SPACE VELOCITY OF ABOUT 0.5 TO 5.0 AND A CATALYST-TO-HYDROGENATED PRODUCT RATIO OF ABOUT 1.5 TO 30 AND RECOVERING INCREASED YIELDS OF GASOLINE.