High temperature conversion process

Claim 1

A PROCESS FOR CARRYING OUT HIGH TEMPERATURE, SHORT CONTACT TIME REACTIONS IN THE CONVERSION OF RESIDUAL HIGH BOILING HYDROCARBONS HAVING AN INITIAL BOILING POINT OF AT LEAST ABOUT 700*F. WHICH COMPRISES PROVIDING A MASS OF PARTICULATE CARBONACEOUS CONTAINING SOLIDS IN A HEATING ZONE, SAID SOLIDS HAVING A SIZE RANGING FROM ABOUT 400 TO ABOUT 2000 MICRONS AND HAVING A TRUE DENSITY OF ABOUT 150 TO 500 LBS. PER CU. FT., INTRODUCING AIR INTO THE BOTTOM PORTION OF SAID HEATING ZONE AT A FLUIDIZING VELOCITY TO MAINTAIN SAID CARBONACEOUS CONTAINING SOLIDS AS A DENSE FLUIDIZED BED WHILE BURNING CARBONACEOUS MATERIAL FROM SAID SOLIDS AND THEREBY HEATING THE SOLIDS TO A TEMPERATURE IN THE RANGE OF 1200*F. TO 2000*F., WITHDRAWING HEATED SOLIDS FROM THE BOTTOM PORTION OF SAID FLUIDIZED BED OF SOLIDS IN SAID HEATING ZONE AND PASSING THEM THROUGH A CONFINED U-SHAPED PASSAGEWAY AS A DENSE FLUIDIZED MASS, INTRODUCING AERATION GAS INTO THE DENSE FLUIDIZED MASS OF SOLIDS IN THE LOWER PORTION OF SAID U-SHAPED PASSAGEWAY TO REDUCE THE DENSITY OF THE FLUIDIZED MASS OF SOLIDS AND TO PASS THE LESS DENSE FLUIDIZED MASS AS A COLUMN OF SOLIDS FROM SAID U-SHAPED PASSAGEWAY UPWARDLY THROUGH A VERTICALLY ARRANGED REACTION ZONE AS A SOLIDS COLUMN OF MUCH SMALLER DIAMETER THAN SAID HEATING ZONE, THE DENSITY OF THE FLUIDIZED SOLIDS IN SAID REACTION ZONE BEING IN THE RANGE OF ABOUT 80 TO 170 LBS. PER CU. FT., INJECTING PREHEATED HYDROCARBON OIL INTO THE UPPER PORTION ONLY OF SAID SOLIDS COLUMN MOVING UPWARDLY THROUGH SAID REACTION ZONE AND MAINTAINED AT A CONVERSION TEMPERATURE IN THE RANGE BETWEEN ABOUT 1100*F. AND 1600*F., CONVERTING SAID