Fuel processor

A fuel processor, comprising:

• a steam reformer unit configured to be disposed at an upper portion in a casing;
• a heat exchanger unit configured to be disposed at a lower portion of the steam reformer unit;
• a high temperature shift reforming unit configured to be disposed at a lower portion of the heat exchanger unit;
• a low temperature shift reforming unit configured to be disposed while enclosing an outer portion of the high temperature shift reforming unit;
• a heat exchange coil unit configured to be disposed between the high temperature shift reforming unit and the low temperature shift reforming unit and have a fluid for heat exchange supplied to an inside thereof to prevent the high temperature shift reforming unit from overheating;
• and
• a heat exchange chamber configured to be disposed at a lower portion of the high temperature shift reforming unit and exchange heat between reformed gas and a heat exchange fluid supplied through a channel part formed to drain the reformed gas and combustion gas and supply the heat exchange fluid.