APPARATUS FOR PRODUCING HYDROGEN AND FUEL CELL SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and a method for producing hydrogen, in each of which the temperature of a gas to be supplied to a selective oxidation catalyst layer is easily controlled in a moderate range without controlling the flow rate of a coolant, and to provide a fuel cell system which is made comparatively inexpensive and is stably operated easily.

SOLUTION: The method for producing hydrogen includes: a reforming step of subjecting a raw material for producing hydrogen to a reforming reaction to obtain a hydrogen-containing gas; a shift reaction step of decreasing the concentration of carbon monoxide in the gas obtained at the reforming step by a shift reaction; a cooling step of cooling the gas obtained at the shift reaction step; a heating step of heating the gas cooled at the cooling step; and a selective oxidation reaction step of decreasing the concentration of carbon monoxide in the gas heated at the heating step. At the heating step, the gas cooled at the cooling step is heated by using the heat generated by a selective oxidation reaction in a heat exchange system. There are provided the apparatus for producing hydrogen suitable for carrying out this producing method, and the fuel cell system with the apparatus for producing hydrogen.

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