Integrated coking and calcining process

Claim 1

AN INTEGRATED COKING AND CALCINING PROCESS WHICH COMPRISES COKING A HEAVY HYDROCARBON OIL BY CONTACTING THE SAME WITH HOT COKE PARTICLES IN A COKING ZONE WHEREIN THE OIL IS CONVERTED TO PRODUCT VAPORS AND CARBONACEOUS SOLIDS DEPOSITED ON THE COKE PARTICLES, REMOVING PRODUCT VAPORS FROM THE COKING ZONE, BURNING A PORTION OF COKE PARTICLES REMOVED FROM THE COKING ZONE WITH A COMBUSTIBLE GAS IN A SEPARATE BURNING ZONE TO INCREASE THE TEMPERATURE OF SAID PARTICLES, RETURNING A PORTION OF THE HEATED COKE PARTICLES FROM THE BURNING ZONE TO THE COKING ZONE, INTRODUCING A SEPARATE STREAM OF COKE PARTICLES WITHOUT SUBSTANTIAL COOLING FROM THE BURNING ZONE TO A SEPARATE CALCINING ZONE CONTAINED IN A AUXILLIARY HEATING ZONE, HEATING THE COKE IN THE CALCINING ZONE TO A TEMPERATURE IN THE RANGE F 2000* F. TO 3000* F. BY BURNING A PORTION OF THE COKE THEREIN TO ESSENTIALLY CO WITH A FREE OXYGENCONTAINING GAS INTRODUCED THERETO, MAINTAINING THE COKE PARTICLES IN THE FLUIDIZED STATE IN THE CALCINING ZONE FOR A SOAKING PERIOD TIME INTERVAL IN THE RANGE OF 5 MINUTES TO 8 HOURS, REMOVING CALCINED COKE FROM THE CALCINING ZONE, REMOVING A GAS CONTAINING CO FREE OF CO2 FROM THE CALCINING ZONE AND INTRODUCING SAID GAS WITH AUXILIARY FREE OXYGEN-CONTAINING GAS AS FUEL TO THE BURNING ZONE.