Method of supplying gaseous material

Claim 1

IN A PROCESS WHEREIN A CATALYST BECOMES CONTAMINATED WITH CARBONACEOUS DEPOSITS AND PERIODICALLY REQUIRES REGENERATION TO REMOVE SAID CARBONACEOUS DEPOSITS, THE IMPROVEMENT FOR EFFECTING SAID REGENERATION AT ELEVATED PRESSURES AND TEMPERATURES WHICH COMPRISES EXPANDING OXYGEN-CONTAINING REGENERATION EFFLUENT GASES OBTAINED FROM A BED OF REGENERATED CATALYST AT AN ELEVATED TEMPERATURE AND PRESSURE IN AN ENERGY GENERATION ZONE, SAID ENERGY GENERATION ZONE PROVIDING THE ENERGY REQUIREMENTS TO COMPRESS REGENERATION AIR SEQUENTIALLY TO AN ELEVATED PRESSURE IN AT LEAST TWO COMPRESSION ZONES, PASSING COMPRESSED REGENERATION AIR IN INDIRECT HEAT EXCHANGE WITH REGENERATION EFFLUENT GASES FROM SAID CATALYST REGENERATION STEP, PASSING SAID PREHEATED REGENERATION AIR TO A SECOND HEATING ZONE, FURTHER HEATING SAID REGENERATION AIR IN SAID SECOND HEATING ZONE BY PARTIAL COMBUSTION OF A PORTION THEREOF WITH A COMBUSTIBLE FUEL, PASSING HEATED REGENERATION AIR FROM SAID SECOND HEATING ZONE TO A CATALYST BED REQUIRING REGENERATION TO REMOVE CARBONACEOUS DEPOSITS THEREFROM, RECOVERING REGENERATION EFFLUENT GASES AND EMPLOYING THE SAME AS HEREINBEFORE DESCRIBED, AND PROVIDING UNRESTRICTED FLOW OF GASEOUS MATERIAL BETWEEN SAID FIRST COMPRESSION ZONE AND SAID ENERGY GENERATION ZONE.