Integrated fluid coke desulfurization process

Claim 1

IN A PROCESS FOR COKING A HEAVY PETROLEUM OIL CONTAINING A HIGH CONCENTRATAION OF SULFUR BY THE STEPS OF CONTACTING THE HEAVY PETROLEUM OIL COKING CHARGE STOCK AT A COKING TEMPERATURE WITH A BODY OF COKE PARTICLES MAINTAINED IN THE FORM OF A DENSE TURBULTENT FLUIDIZED BED IN A REACTION ZONE, WHEREIN THE OIL IS CONVERTED TO PRODUCT VAPORS AND CARBONACEOUS SLIDS ARE CONTINUOUSLY DEPOSITED ON THE COKE PARTICLES; REMOVING PRODUCT VAPORS FROM THE COKING ZONE; HEATING OF THE CIRCULATING COKE PARTICLES REMOVED FROM THE COKING ZONE IN A SEPARATE HEATING ZONE TO INCREASE THE TEMPERATURE OF SAID PARTICLES; RETURNING OF THE CIRCULATING HEATED COKE PARICLES FROM THE HEATING ZONE TO THE COKING ZONE TO SUPPLY HEAT THERETO, AND WHEREIN THE FLUID COKE PRODUCT PARTICLES NORMALLY CONTAIN A HIGH PERCENTAGE OF SULFUR, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY CONTACTING OF THE NOT CIRCULATING COKE PARTICLES FROM THE HEATING STEP TO THE COKING STEP WITH A GASEOUS SULFUR REMOVING REAGENT AT A TEMPERATURE IN THE RANGE OF 1050* TO 1600*F. WHEREBY SULFUR IS CONTINUOUSLY REMOVED FROM THE CIRCULATING COKE PARTICLES AND THEIR SULFUR CONTENT LOWERED.