Integrated fractionation, fluid coking and catalytic cracking process for hydrocarbon oils

Claim 1

A HYDROCARBON CONVERSATION PROCESS WHICH COMPRISES, IN COMBINATION, THE STEPS OF: INITIALLY SEPERATING A CRUDE FEED IN A FRACTIONATION ZONE TO OBTAIN A BOTTOMS FRACTION, A GAS OIL FRACTION BOILING IMMEDIATELY ABOVE SAID BOTTOMS FRACTION WITHIN THE LIMITS OF 430-1050*F. AND LIGHTER MATERIAL WHICH IS WITHDRAW AS PRODUCT; CONVERETING SAID GAS OIL FRACTION BY CONTACT WITH A FLUID BED OF CRACKING CATALYST IN A CATALYTIC CRACKING ZONE TO VAPOROUS CATALYTIC CONVERSION PRODUCTS AND COKE WHICH IS DEPOSITED ON SAID CRACKING CATALYST; CONVERTING SAID BOTTOMS FRACTION BY CONTACT WITH A FLUID BED OF FINELY DIVIDED INERT COKE PARTICLES IN A COKING ZONE TO VAPOROUS COKER CONVERSION PRODUCTS AND COKE WHICH IS DEPOSITED ON SAID FINELY DIVIDED INERT COKE PARTICLES; MAINTAINING THE TEMPERATURE OF SAID CATALYTIC CRACKING ZONE BY CIRCULATING SAID CRCKING CATAYLST THROUGH AN EXTERNAL REGENATION ZONE WHEREIN COKE DEPOSITS ON THE CATALYST ARE REMOVED BY COMBUSTION; MAINTAINING THE TEMPERATURE OF SAID COKING ZONE BY CURCULATING SAID FINELY DIVIDED COKE PARTICLES THROUGH AN EXTERNAL HEATING ZONE WHEREIN THE COKE PARTICLES ARE HEATED BY PARTIAL COMBUSTION; RETURNING SAID VAPOROUS CATALYTIC AND COKER CONVERSION PRODUCTS TO SAID FRACTIONATION ZONE VBELOW THE INLET OF SAID CRUDE FEED TO SUPPLY HEAT FOR THE SEPARATION OF SAID CRUDE FEED; SEPARATING THE CONVERSION PRODUCTS THEREIN ALONG WITH THE CRUDE FEED WHEREBY SAID BOTTOMS FRACTION AND GAS OIL FRACTION ARE ULTIMATELY CONVERTED ENTIRELY INTO SAID LIGHTER MATERIALS WHICH ARE WITHDRAWN AS PRODUCT, AND COKE; AND MAINTAINING THE HEAT BALANCE OF SAID CTAALYTIC CRACKING AND FRACTIONATION ZONES THROUGH ADJUSTMANT OF THE GAS OIL RECYCLE TO THE CRACKING ZONE IN RESPONSE TO CHANGES IN CRACKING SEVERITY.