Hydrocracking of gas oils

Claim 2

A PROCESS OF CRACKING MINERAL OIL FRACTIONS BOILING ABOVE THE GASOLINE RANGE TO PRODUCE MOTOR FUEL OF HIGH OCTANE NUMBER WITH LOW CARBON PRODUCTION WHICH COMPRISES SUBJECTING SAID FRACTIONS TO CONTACT WITH A CRACKING CATALYST CONTAINING A MAJOR PROPORTION OF SILICA, A MINOR PROPORTION OF A REFRACTORY METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND MAGNESIA AND FROM 8 TO 16% OF MOLYBDENUM OXIDE AT A TEMPERATURE OF 1000 TO 1100*F. AND A PRESSURE OF 150 TO 300 POUNDS'' PRESSURE PER SQUARE INCH AND IN THE PRESENCE OF HYDROGEN GAS SUPPLIED AT THE RATE OF 3000 TO 10,000 CUBIC FEET UNDER STANDARD CONDITIONS PER BARREL OF FEED.

Claim 3

THE PROCESS OF CRACKING PETROLEUM OIL WHICH COMPRIESE FEEDING A GAS OIL HIGH NAPHTHENES CONTENT AND BOILING RANGE BETWEEN 400 AND 800*F. TO A HYDROCRACKING REACTOR IN THE PRESENCE OF FINELY DIVIDED SOLID CATALYST COMPRISING AN ALUMINA-SILICA CRACKING CATALYST CONTAINING A MAJOR PROPORTION OF SILICA CONTAINING 8 TO 16% BY WEIGHT OF MOLYBDENUM OXIDE, SAID REACTOR BEING OPERATED AT A PRESSURE OF ABOUT 150-300 P.S.I.G. AND A TEMPERATURE OF 1035* TO 1070*F., FEEDING HYDROGEN GAS ALONG WITH SAID OIL AND CATALYST AT A RATE OF ABOUT 4,000 CUBIC FEED PER BARREL OF GAS OIL, SIMULTANEOUSLY SUBJECTING A NAPHTHA TO A HYDROFORMING OPERATION IN THE PRESENCE OF A HYDROGENATION CATALYST, AND UTILIZING THE HYDROGEN FROM THE HYDROFORMING OPERATION TO SUPPLY HYDROGEN FOR THE HYDROCRACKING OPERATION.

Claim 4

THE PROCESS OF CRACKING PETROLEUM OIL WHICH COMPRIESE FEEDING A GAS OIL HIGH NAPHTHENES CONTENT AND BOILING RANGE BETWEEN 400 AND 800*F. TO A HYDROCRACKING REACTOR IN THE PRESENCE OF FINELY DIVIDED SOLID CATALYST COMPRISING AN ALUMINA-SILICA CRACKING CATALYST CONTAINING A MAJOR PROPORTION OF SILICA CONTAINING 8 TO 16% BY WEIGHT OF MOLYBDENUM OXIDE, SAID REACTOR BEING OPERATED AT A PRESSURE OF ABOUT 150-300 P.S.I.G. AND A TEMPERATURE OF 1035* TO 1070*F., FEEDING HYDROGEN GAS ALONG WITH SAID OIL AND CATALYST AT A RATE OF ABOUT 4,000 CUBIC FEED PER BARREL OF GAS OIL, SIMULTANEOUSLY SUBJECTING A NAPHTHA TO A HYDROFORMING OPERATION IN THE PRESENCE OF A HYDROGENATION CATALYST, AND UTILIZING THE HYDROGEN FROM THE HYDROFORMING OPERATION TO SUPPLY HYDROGEN FOR THE HYDROCRACKING OPERATION.