Fuel-cell system with autothermal fuel-reforming apparatus incorporating input air regulation

   
   

A reformer 34 includes three reforming reaction units 80, 82, and 84. These reforming reaction units 80, 82, and 84 respectively include catalyst layers 81, 83, and 85. A supply of crude fuel gas fed to the reformer 34 successively passes through the catalyst layers 81, 83, and 85 in this sequence to be subjected to reforming reactions and converted to a hydrogen-rich gaseous fuel. An air supply unit 90 feeds a supply of the air to each catalyst layer. Oxidation reactions proceed in addition to the reforming reactions in the catalyst layer which receives the supply of the air. Heat produced by the oxidation reactions is utilized for the reforming reactions. Temperature sensors 86, 87, and 88 respectively measure the internal temperatures of the catalyst layers 81, 83, and 85. The amount of the air fed to each catalyst layer is regulated, based on the results of the measurement.

 
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