Means for introducing lift gas to vertical catalyst riser within a reaction chamber

Claim 1

A HYDROFORMING PROCESS WHICH COMPRISES CONTACTING A NAPHTHA FEED WITH A DENSE FLUIDIZED MASS OF FINELY DIVIDED SOLID REFORMING CATALYST IN A REACTION ZONE AT A PRESSURE OF AT LEAST ABOUT 30 P.S.I.G., THUS CONTAMINATING THE CATALYST WITH VOLATILE AND NON-VOLATILE HYDROCARBONACEOUS MATERIAL, WITHDRAWING THE CONTAMINATED CATALYST DIRECTLY FROM THE LOWER PORTION OF THE DENSE MASS OF FLUIDIZED CATALYST IN SAID REACATION ZONE AND PASSING THE SAME UPWARDLY AS A MORE DILUTE PHASE SUSPENDED IN A GASEOUS MATERIAL AT A LINEAR VELOCITY OF AT LEAST ABOUT 8 FEET PER SECOND IN A SUBTANTIALLY VERTICAL ELONGATED CONFINED ZONE ENCOMPASSED BY AID RECTION ZONE TO AN ACCUMULATION ZONE POSITIONED ABOVE SAID REACTION ZONE TO AN SAID DILUTE PHASE FORMED BY PASSING SAID GASEOUS MTERIAL THROUGH A GRID WHICH REDUCES THE TENDENCY OF BACKFLOW OF CATALYST THEREBY FORMING A PLURALITY OF HIGH VELOCITY STREAMS WHICH COMBINE TO FORM A SINGLE GASEOUS STEAM OF REDUCED VELOCITY PRIOR TO CONTACTING THE CATALYST IN SAID ELONGATED CONFINED ZONE, PASSING THE CONTAMINATED CONTACT MATERIAL TO A STRIPPING ZONE ADJACENT TO SAID ACCUMULATION ZONE, AID STRIPPING ZONE, ACCUMULATION ZONE AND REACTION ZONE BEING IN OPEN COMMUNICATION WITH ONE ANOTHER IN THE UPPER PORTION THEREOF, STRIPPING VOLATILE REACTION PRODUCTS FROM SAID CATALYST AS A DENSE FLUIDZIED MASS IN SAID STRIPING ZONE, CMMINGLING STRIPPED PRODUCTS OF REACTION WITH REACTION PRODUCTS, REMOVING COMMINGLED PRODUCTS OF REACTION FROM SAID REACTION ZONE, WITHDRAWING STRIPPED CATALYST FROM SAID STRIPPING ZONE AND PASSING THE SAME DOWNWARDLY TO A REGENERATION ZONE, REMOVING AT LEAST A PORTION OF THE NON-VOLATILE HYDROCARBONACEOUS MATERIAL FROM THE CATALYST IN THE REGENERATION ZONE AND PASSING CATALYST FROM THE REGENERATION ZONE TO THE LOWER PORTION OF THE REACTION ZONE.