NOVELTY - Rapidly heating a fuel processor to its operating temperature includes reforming fuel with a catalyst to produce steam, carbon monoxide and hydrogen gas; homogeneously mixing air with carbon monoxide and hydrogen gas to create a mixture which will react and produce heat; and using the heat to raise the temperature of catalysts in the fuel processor.    USE - For rapidly heating a fuel processor to its operating temperature.    ADVANTAGE - The process allows rapid start-up of fuel processor requiring minimal amounts of electrical power. It reduces the amount of fuel used during the warm-up so lowering costs.    DETAILED DESCRIPTION - Rapidly heating a fuel processor to its operating temperature includes:    (a) reforming fuel with a catalyst to produce steam, carbon monoxide and hydrogen gas;    (b) homogeneously mixing air with carbon monoxide and hydrogen gas to create a mixture which will react and produce heat;    (c) using the heat to raise the temperature of catalysts in the fuel processor;    (d) combining the mixture with an oxidant to decrease the concentration of carbon monoxide;    (e) using the heat to produce steam; and    (f) mixing the steam with the mixture to increase the yield of hydrogen gas.    INDEPENDENT CLAIMS are also included for:    (A) a method of converting hydrocarbon fuel to reformate gas by producing combustible moieties from fuel, oxidizing the combustible moieties to generate heat, utilizing the heat to increase the surface temperature of catalysts and reacting the reactants to the catalysts; and    (B) a device for vaporization of fuel comprising a first heating element to provide the latent heat of vaporization of the fuel and a second heating element to provide superheating of the fuel.    DESCRIPTION OF DRAWING(S) - The figure shows a fuel processor system.    Fuel pressurizer (12)    Fuel vaporizer (16)    Reformer (18)    Water-gas reaction zones (20)    Air (22)    Initial heat exchanger (26)    Reaction zones (32)    Flowmeters (34)    Heat exchangers (36)