Integrated refining of crude oil

Claim 1

AN INTEGRATED HEAVY OIL REFINING PROCESS WHICH COMPRISES INTRODUCING AN OIL CONTAINING CONSTITUENTS VAPORIZABLE AT ATMOSPHERIC PRESSURE INTO A FRACTIONAL DISTILLATION ZONE OPERATING AT LEAST AT ATMOSPHERIC PRESSURE, REMOVING AND PASSING A GAS OIL FRACTION FROM SAID DISTILLATION ZONE TO A FLUID CATALYTIC CONVERSION ZONE, REMOVING AND PASSING A RESIDUAL FRACTION BOILING ABOVE ABOUT 800* F. FROM SAID DISTILLATION ZONE TO A LOW-CONVERSION ZONE WHEREIN INERT FINELY DIVIDED HEAT TRANSFER SOLIDS ARE MAINTAINED AS A FLUID BED AT A TEMPERATURE IN THE RANGE OF 800 TO 1100* F. AND WHEREIN SAID RESIDUAL FRACTION IS CONVERTED TO COKE AND HYDROCARBON VAPORS, DIRECTLY PASSING THE RESULTING HYDROCARBON VAPORS WITHOUT APPRECIABLE COOLING TO SAID FLUID CATALYTIC CONVERSION ZONE WHEREIN FINELY DIVIDED CRACKING CATALYST IS MAINTAINED AS A FLUID BED AT A TEMPERATURE IN THE RANGE OF 850 TO 1100* F. AND WHEREIN SAID HYDROCARBON VAPORS AND GAS OIL FRACTION ARE CONVERTED INTO LOWER BOILING CATALYTIC CONVERSION PRODUCTS, DIRECTLY PASSING SAID LOWER BOILING CONVERSION PRODUCTS IN VAPOR FORM FROM SAID CATALYTIC CONVERSION ZONE TO SAID DISTILLATION ZONE, RECOVERING A CATALYTICALLY CRACKED GASOLINE FRACTION FROM AN UPPER PART OF SAID DISTILLATION ZONE, REMOVING COKE-CONTAINING CATALYST FROM SAID CATALYTIC CONVERSION ZONE, BURNING COKE DEPOSITS THEREFROM IN A REGENERATION ZONE IN THE PRESENCE OF AN OXYGEN-CONTAINING GAS, RETURNING CATALYST SO REGENERATED TO SAID CATALYTIC CONVERSION ZONE, AND SUPPLYING HEAT TO SAID LOW-CONVERSION ZONE BY HEAT EXCHANGE BETWEEN CATALYST WITHDRAWN FROM SAID REGENERATION ZONE AND SAID HEAT TRANSFER SOLIDS.