Fluidized solids refluxing in hydrocarbon conversions

Claim 1

THE PROCESS FOR THE CONVERSION OF A HYDROCARBON OIL WHICH COMPRISES INJECTING SAID OIL INTO A DENSE-PHASE FLUIDIZED MASS OF PARTICULATE CONTACT MATERIAL MAINTAINED AT A CONVERSION TEMPERATURE IN THE RANGE OF 850 TO 1100F. IN A CONVERSION ZONE, REACTING CARBONACEOUS MATTER DEPOSITED ON SAID CONTACT MATERIAL BY SAID OIL WITH STEAM AND HIGH-PURITY OXYGEN IN A REGENERATION ZONE MAINTAINED AT A REGENERATION TEMPERATURE IN THE RANGE OF 1600 TO 2500* F., PASSING REGENERATION PRODUCT GASES RICH IN HYDROGEN FROM SAID REGENERATION ZONE THROUGH SAID CONVERSION ZONE, PASSING THE RESULTING GASIFORM EFFLUENT CONTAINING CONVERTED HYDROCARBONS AND SAID REGENERATION PRODUCT GASES THROUGH A DENSE-PHASE FLUIDIZED MASS OF SAID CONTACT MATERIAL SUSPENDED IN A GASIFORM MEDIUM IN A REFLUX ZONE MAINTAINED AT A TEMPERATURE NOT HIGHER THAN 800*F., SAID EFFLUENT HAVING SUBSTANTIALLY THE SAME COMPOSITION AS IT LEAVES SAID CONVERSION ZONE AND ENTERS SAID REFLUX ZONE, AND CONTROLLEDLY TRANSFERRING SAID CONTACT MATERIAL FROM SAID REFLUX ZONE TO SAID CONVERSION ZONE, FROM SAID CONVERSION ZONE TO SAID REGENERATION ZONE, AND FROM SAID REGENERATION ZONE TO SAID CONVERSION ZONE.