US Patent 7201983 Hydrogen generation apparatus and method and fuel cell system

A hydrogen generation apparatus hasa reformer of generating a reformed gas containing at least hydrogen and carbon monoxide by making a material containing an organic compound react with water;carbon-monoxide-removing means of including at least a shifter of reducing the carbon monoxide contained in the reformed gas generated by the reformer in accordance with a shift reaction; andmaterial-humidifying means of humidifying the material by directly or indirectly using moisture contained in the reformed gas.