Hydrocracking of a high boiling hydrocarbon oil with a platinum catalyst containing alumina and an aluminum halide

Claim 1

A CATALYTIC PROCESS FOR EFFECTING THE CONVERSION OF A RELATIVELY HIGH-BOILING HYDROCARBON FRACTION HAVING AN INITSAL BOILING POINT OF AT LEAST ABOUT 400* F., A 50 PERCENT POINT OF AT LEAST 500* F., AND AN END-POINT OF AT LEST ABOUT 600* F. AND BOILING SUBSTANTIALLY CONTAINUOUSYL BETWEEN SAID INTIAL BOILING POINT AND SAID END-POINT, INTO HYDROCARBON PRODUCTS SELECTED FROM THE GROUP CONSISTING OF SUBSTANTIALLY FUEL OIL, SUBSTANTIALLY GASOLINE AND A MIXTURE OF SUBSTANTIALLY GASOLINE AND SUBSTANTIALLY FUEL OIL, WHEREIN THERE IS SUBSTANTIALLY NO COKE FORMATION AND THE PRODUCTION OF C1-, C2-, AND C3-GASEOUS HYDROCARBONS IS LESS THAN ABOUT 10 PRECENT, BY WEIGHT, OF SAID RELATIVELY HIGH-BOILING PETROLEUM HYDROCARBON FRACTION AT CONVERSIONS IN WHICH SAID RELATIVELY HIGH-BOILING HYDROCARBON FRACTION IS COMPLETELY CONVERTED, IN A ONCE-THROUGH OPERATION, INTO PRODUCTS BOILING BELOW ABOUT 410* F., WHICH COMPRISES CONTACTING SAID RELATIVELY HIGH-BOILING HYDROCARBON FRACTION WITH A CATALYST THAT INCLUDES BETWEEN ABOUT 0.05 PERCENT, BY WEIGHT, AND ABOUT 20 PERCENT, BY WEIGHT, OF A METAL SELECTED FROM THE GROUP OF METALS HAVING ATOMIC NUMBERS OF 44 TO 46, INCLUSIVE, AND 76 TO 78, INCLUSIVE, DEPOSITED UPON A SYNTHETIC COMPOSITE SELECTED FROM THE GROUP CONSISTING OF A COMPOSITE OF ALUMINA WITH ALUMINUM HALIDE CONTAINING AT LEAST ABOUT 3 PERCENT ALUMINUM HALIDE, BY WEIGHT, AND A COMPOSITE OF SILICA WITH ALUMINUM HALIDE CONTAINING AT LEAST ABOUT 3 PERCENT