Fluid coking process

Claim 1

IN A PROCESS WHEREIN HEAVY HYDROCARBON OIL IS THERMALLY CRACKED TO LOWER BOILING HYDROCARBONS AND COKE IN A DENSE FLUIDIZED BED OF SOLID PARTICLES IN A SINGLE COKING ZONE AND HEAT IS SUPPLIED TO SAID CRACKING STEP BY BURNING PART OF THE COKE SOLIDS IN A BURNING ZONE SAID RETURNING THE HEATED SOLIDS TO SAID CRACKING STEP IN SAID SINGLE COKING ZONE, THE IMPROVEMENT WHICH COMPRISES PASSING HOT CRACKED GASEOUS PRODUCT DIRECTLY FROM SAID CRACKING STEP TO A SCRUBBING ZONE, INTRODUCING AN OIL CONSISTING ESSENTIALLY OF A WHOLE PETROLEUM CRUDE OIL FEED INTO SAID SCRUBBING ZONE FOR CONTACTING SAID WHOLE CRUDE OIL FEED AND SAID CRACKED GASEOUS PRODUCT TO SCRUB OUT ENTRAINED SOLIDS FROM SAID FEED INTO SAID CRACKED GASEOUS PRODUCT AND TO CONDOME HEAVY HYDROCARBONS FROM SAID CRACKED GASEOUS PRODUCT TO A VAPORIZE LOWER BOILING HYDROCARBONS FROM SAID WHOLE CRUDE OIL FEED, INTRODUCING A FLUIDIZING GAS INTO THE BOTTOM PORTION OF SAID DENSE FLUIDIZED BED TO MAINTAIN THE SOLID PARTICLES IN A FLUIDIZED CONDITION, REMOVING A BOTTOM FRACTION FROM SAID SCRUBBING ZONE AND UTILIZING AT LEAST PART THEREOF AS THE OIL FEED TO SAID DENSE FLUIDIZED BED, AND PROVIDING ADDITIONAL HEAT FOR THE DISTILATION OF SAID WHOLE CRUDE OIL FEED IN SAID SCRUBBING ZONE BY APPLYING MORE HEATED SOLID PARTICLES FROM SAID BURNING ZONE AND MORE HEAT TO SAID DENSE FLUIDIZED BED IN SAID CRACKING STEP THAN IS NECESSARY FOR CRACKING SAID OIL FEED AND INTRODUCING A VAPORIZING LIQUID IN ADDITION TO SAID OIL FEED INTO SAID DENSE FLUIDIZED BED FOR VAPORIZING SAID LIQUID AND FOR HEATING THE FORMED VAPORS AND PASSING THE HEATED VAPORS TO SAID SCRUBBING ZONE TO SUPPLY HEAT THEETO FOR THE VAPORIZATION OF LOWER BOILING HYDROCARBONS FROM SAID WHOLE CRUDE OIL FEED.