Heat balanced hydroforming process

Claim 1

IN THE METHOD OF REFORMING HYDROCARBON FRACTION BOILING WITHIN THE NAPHTHA RANGE IN CONTACT WITH A MIXTURE OF AT LEAST FOUR PARTS BY WEIGHT OF FINELY DIVIDED REFORMING CATALYST PARTICLES PER PART BY WEIGHT OF INERT HEAT TRANSFER SOLID PARTICLES IN A DENSE, FLUIDIZED BED, THE IMPROVEMENT WHICH COMPRISES WITH DRAWING A MIXTURE OF CATALYST AND INERT HEAT TRANSFER SOLIDS FROM THE DENSE BED IN THE REACTOR ZONE, ELUTRATING THE WITHDRAWN MIXTURE TO CONVEY CATALYST PARTICLES BACK INTO THE REACTION ZONE AND WITHDRAWING FROM THE ELUTRIATION STEP AN ELURIATED MIXTURE COMPRISING ABOUT 3 TO 4 PARTS BY WEIGHT OF INERT HEAT TRANSFER SOLIDS PER PART BY WEIGHT OF CATALYST, SUBJECTING THE ELURIATED MIXTURE TO THE ACTION OF AIR TO BURN CARBONACEOUS DEPOSITS FROM THE CATALYST AND HEAT THE MIXTURE OF INERT HEAT TRANSFER SOLIDS AND CATALYST, AND RECYCLING THE SAID HOT MIXTURE CONTAINING 3 TO 4 PARTS BY WEIGHT OF INERT HEAT TRANSFER SOLIDS PER PART BY WEIGHT OF CATALYST TO THE REACTION ZONE, WHEREBY A MAJOR PORTION OF THE HEAT RELEASED IN THE REGENERATION OF THE CATALYST IS TRANSFERRED TO THE REACTOR ZONE BY THE INERT HEAT TRANSFER SOLIDS WHILE SAID SOLIDS OCCUPY AT MOST ONLY A MINOR PORTION OF THE REACTOR VOLUME.