Shot heated fluid conversion system

Claim 1

AN IMPROVED FLUID COKING PROCESS WHICH COMPRISES THE STEPS OF CONVERTING A FEED STOCK IN A COKING ZONE CONTAINING A DENSE TURBULENT BED OF FLUIDIZED COKE PARTICLES UNDER ABOUT 500 MICRONS IN SIZE MAINTAINED AT A COKING TEMPERATURE AND A COKING PRESSURE ABOVE 50 P. S. I. G. TO PRODUCE VAPORS AND COKE WHICH IS DEPOSITED ON SAID PARTICLES, WITHDRAWING SAID VAPORS AS PRODUCT, INTRODUCING COKE PARTICLES FROM SAID COKING ZONE INTO A MIXING ZONE MAINTAINED SUBSTANTIALLY AT SAID COKING PRESSURE, MIXING WITH THE COKE PARTICLES IN SAID MIXING ZONE HEAVIER HIGH TEMPERATURE PARTICULATE HEAT CARRIER IN THE ABSENCE OF FEED STOCK, THE FREE FALL VELOCITY OF SAID HEAT CARRIER BEING AT LEAST 2 TIMES THE FREE FALL VELOCITY OF SAID COKE PARTICLES, SAID HEAT CARRIER HAVING A BULK DENSITY IN THE RANGE OF 30 TO 200 LBS./CU.FT., FLOWING THE RESULTING MIXTURE TO AN ELUTRIATION ZONE ALSO MAINTAINED SUBSTANTIALLY AT SAID COKING PRESSURE, PASSING AN INERT AERATION GAS UPWARDLY THROUGH THE PARTICLES IN SAID ELUTRIATION ZONE IN THE ABSENCE OF FEED STOCK AT A VELOCITY SUFFICIENT TO ENTRAIN ONLY HEATED COKE PARTICLES, RETURNING HEATED COKE PARTICLES AND AERATION GAS FROM SAID ELUTRIATION ZONE TO SAID COKING ZONE TO MAINTAIN SAID COKING TEMPERATURE, PASSING HEAT CARRIER FROM THE LOWER PORTION OF SAID ELUTRIATION ZONE IN THE FORM OF A DENSE UPWARDLY FLOWING AERATED COLUMN IN A REVERSE STANDPIPE TO A HEATING ZONE MAINTAINED AT A PRESSURE BELOW 20 P. S. I. G., SAID COLUM BEING OF SUFFICIENT HEIGHT TO DISSIPATE THE PRESSURE ORIGINALLY ON SAID HEAT CARRIER, HEATING SAID HEAT CARRIER IN SAID HEATING ZONE TO A HIGH TEMPERATURE ABOVE SAID COKING TEMPERATURE, AND PASSING ONLY HIGH TEMPERATURE HEAT CARRIER FROM SAID HEATING ZONE TO SAID MIXING ZONE AS A DESCENDING AERATED COLUMN IN A STANDPIPE, SAID COLUMN BEING OF SUFFICIENT HEIGHT TO GENERATE A HYDROSTATIC PRESSURE ON SAID HIGH TEMPERATURE HEAT CARRIER AT LEAST EQUAL TO SAID COKING PRESSURE.