Use of product gases in a fluidized conversion process

Claim 1

A HYDROFORMING PROCESS WHICH COMPRISES CONTACTING A VAPORIZED NAPHTHA FEED WITH A DENSE FLUID BED OF FINELY DIVIDED CATALYST COMPRISING MOLYBDENUM TRIOXIDE SUPPORTED ON ALUMINA AT A PRESSURE OF ABOUT 850 TO ABOUT 500 P. S. I. G., A TEMPERATURE OF ABOUT 850 TO ABOUT 950*F., A CATALYST TO OIL RATIO OF ABOUT 0.1 TO ABOUT 2.0, A WEIGHT SPACE VELOCITY OF ABOUT 0.1 TO ABOUT 2.5 IN THE PRESENCE OF ADDED HYDROGEN IN THE AMOUNT OF ABOUT 1000 TO ABOUT 7500 S. C. F. B., THEREBY PRODUCING A VAPOROUS REACTION PRODUCT CONTAINING NORMALLY GASEOUS MATERIAL, GASOLINE, POLYMER AND ENTRAINED CATALYST FINES, SEPARATING POLYMER FROM SAID REACTION PRODUCT, SCRUBBING FINES FROM THE REACTION PRODUCT WITH POLYMER, SEPARATING NORMALLY GASEOUS MATERIAL FROM THE REACTION PRODUCT, SEPARATING POLYMER CONTAINING CATALYST FINES FROM THE BULK OF THE POLYMER IN A SETTLING ZONE MAINTAINED AT A PRESSURE OF ABOUT 15 TO ABOUT 35 P. S. I. GREATER THAN THE PRESSURE MAINTAINED IN THE REACTION ZONE TO FORM A SLURRY CONTAINING ABOUT 1.0 TO ABOUT 2.5 LB. OF CATALYST PER GALLON OF OIL VEHICLE, INJECTING A PORTION OF THE GASEOUS MATERIAL INTO SAID SLURRY OF FINES IN AN AMOUNT OF ABOUT 2 TO ABOUT 5 S. C. F. OF THE GASEOUS MATERIAL PER LB. OF SLURRY, PASSING THE SLURRY OF FINES AND GASEOUS MATERIAL TO A TRANSFER ZONE WHEREIN THE LINEAR VELOCITY IS ABOUT 10 TO ABOUT 50 FT. PER SEC. RECYCLING THE GASEOUS MATERIAL AND SLURRY FROM THE TRANSFER ZONE TO THE REACTION ZONE, AND RECYCLING ANOTHER PORTION OF NORMALLY GASEOUS MATERIAL TO THE REACTION ZONE.