TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The process further comprises: using the synthesis gas to generate additional hydrocarbon product and/or fuel; subjecting the first catalyst portion to a stripping step to at least partially remove coke and/or heavy hydrocarbons from it; contacting the heated first catalyst portion with methane to at least partially remove adsorbed water and/or oxygen from it; transferring a second portion of the catalyst to a regeneration zone separate from the heating zone, and contacting the second catalyst portion with a regeneration gas in the regeneration zone to remove coke generated by the contacting step; and contacting the regenerated second catalyst portion with methane or hydrogen to at least partially remove adsorbed water and/or oxygen from it. In the process: substantially all of the supplemental fuel is supplied to one end of the heating zone, and oxygen-containing gas is supplied incrementally to the heating zone at spaced locations; substantially all of the oxygen-containing gas required to burn the supplemental fuel is supplied to one end of the heating zone, and the supplemental fuel is supplied incrementally to the heating zone at spaced locations; and hot combustion gases generated in a combustion zone separate from the heating zone are supplied to spaced locations. The first catalyst portion is contacted directly with the source of fuel in the heating step. The source of fuel is burned in a combustion zone separate from the heating zone, and the combustion gases generated in the combustion zone are fed to the heating zone. The hydrocarbon is burned in an oxygen-lean atmosphere to produce synthesis gas. The supplemental source of fuel comprises: a hydrocarbon, preferably methane and/or hydrogen; and hydrogen generated as a by-product of the process. The heating zone is elongated, and heat is applied to the first catalyst portion at locations spaced along the length of the heating zone. The heating zone is a riser, and the first catalyst portion is passed upwardly through the riser. The first catalyst portion is at 500-900 degrees C on entering the heating zone, and is at 800-1000 degrees C on leaving the heating zone. The hot combustion gases are at less than 1300 degrees C. The stripping step comprises contacting the first catalyst portion with steam, hydrogen and/or carbon dioxide. The stripping is effected after the heating step. The catalyst comprises a metal and the heated first catalyst portion is subjected to a carburization step. The carburization step comprises: contacting the heated first catalyst portion with a hydrocarbon, carbon dioxide or carbon monoxide and optionally hydrogen; contacting the regenerated second catalyst portion with a hydrocarbon, carbon dioxide or carbon monoxide and optionally hydrogen. The temperature in the regeneration zone is less than the temperature of the reaction zone. The temperature in the regeneration zone is 400-700 degrees C. The ratio of the weight of catalyst transferred in a given time to the heating zone to the weight of catalyst transferred in the same time to the regeneration zone is 5:1-100:1. The catalyst comprises a metal, and the regenerated second catalyst portion is subjected to a carburization step. The regeneration gas comprises oxygen. The regeneration gas also comprises carbon dioxide and/or nitrogen such that the oxygen concentration of the regeneration gas is less than 10 wt.%. The regeneration zone is a riser or a moving bed. The feed is contacted in the reaction zone with a moving bed of the dehydrocyclization catalyst. The feeds flow countercurrent to the direction of movement of the dehydrocyclization catalyst. The feed is contacted in the reaction zone with one or more fluidized beds of the dehydrocyclization catalyst. The transferring step and returning step are effected continuously. The reaction zone comprises a vertically-disposed, settling bed reactor, where the feed enters the reactor at or near the base of the reactor and the heated first catalyst portion, and the regenerated second catalyst portions are returned to the reactor at or near the top of the reactor. The first and second catalyst portions are removed in the transferring step from at or near the base of the reactor. The reaction zone comprises series-connected fluid bed reactors in which the heated first catalyst portion is fed to the first reactor in the series and moves in counter-current flow to the feed which is introduced the final reactor in the series. EXAMPLE - No suitable example given.