High conversion hydrogenation of heavy gas oil

Claim 1

THE METHOD OF CONVERSION OF A HEAVY VIRGIN GAS OIL TO PRODUCE AT LEAST 60 PERCENT (WEIGHT) OF NAPHTHA AND FURNACE OIL WHEREIN THE RATIO OF FURNACE OIL TO NAPHTHA IS IN EXCESS OF 2:1 WHICH COMPRISES THE STEPS OF: (A) PASSING A HYDROGEN CONTAINING GAS AT A RATE OF IN EXCESS OF 5000 S.C.F./BBL., TOGETHER WITH THE GAS OIL AT TEMPERATURES IN THE RANGE OF 750*F. AND 900*F. AND PRESSURES IN THE RANGE OF 1000 TO 2500 P.S.I.G. UPWARDLY THROUGH A REACTION ZONE CONTAINING A BED OF LOW ACIDITY IN RANDOM MOTION IN THE LIQUID AND FOR A TIME TO OBTAIN AT LEAST A 40F% CONVERSION OF ALL GAS AND OIL BOILING ABOVE 650*F. TO A FRACTION BOILING BELOW 650*F.; (B) HYDROTREATING THE EFFLUENT OF SAID STEP (A) IN A SEPARATE ZONE UNDER SUBSTANTIALLY THE TEMPERATURE AND PRESSURE OF THE SAID STEP (A) WITH THE HYDROGEN FROM SAID STEP (A) AND IN THE PRESENCE OF A CATALYST CONTAINING NICKEL-MOLYBDENUM ON ALUMINA AT A SUITABLE SPACE VELOCITY; (C) SEPARATING A GASEOUS FRACTION FROM SAID SEPARATE ZONE;

Claim 2

THE METHOD OF CONVERSION OF A HEAVY VIRGIN GAS OIL TO PRODUCE AT LEAST 60 PERCENT (WEIGHT) OF NAPHTHA AND FURNACE OIL WHEREIN THE RATIO OF FURNACE OIL TO NAPHTHA IS IN EXCESS OF 2:1 WHICH COMPRISES THE STEPS OF: (A) PASSING A HYDROGEN CONTAINING GAS AT A RATE OF IN EXCESS OF 5000 S.C.F./BBL., TOGETHER WITH THE GAS OIL AT TEMPERATURES IN THE RANGE OF 750*F. AND 900*F. AND PRESSURES IN THE RANGE OF 1000 TO 2500 P.S.I.G. UPWARDLY THROUGH A REACTION ZONE CONTAINING A BED OF LOW ACIDITY IN RANDOM MOTION IN THE LIQUID AND FOR A TIME TO OBTAIN AT LEAST A 40F% CONVERSION OF ALL GAS AND OIL BOILING ABOVE 650*F. TO A FRACTION BOILING BELOW 650*F.; (B) HYDROTREATING THE EFFLUENT OF SAID STEP (A) IN A SEPARATE ZONE UNDER SUBSTANTIALLY THE TEMPERATURE AND PRESSURE OF THE SAID STEP (A) WITH THE HYDROGEN FROM SAID STEP (A) AND IN THE PRESENCE OF A CATALYST CONTAINING NICKEL-MOLYBDENUM ON ALUMINA AT A SUITABLE SPACE VELOCITY; (C) SEPARATING A GASEOUS FRACTION FROM SAID SEPARATE ZONE;