| 摘要 |
<P>PROBLEM TO BE SOLVED: To make a generating system highly efficient by suppressing deterioration of generating efficiency. <P>SOLUTION: The fuel cell system is provided with a solid oxide fuel cell stack 3 which performs power generation by reacting electrochemically hydrogen in a reformed gas 9 from a reformer 2 with oxygen in the air 36 for power generation, a CO shift converter 20 which converts into carbon dioxide and hydrogen by reacting carbon monoxide in the fuel electrode exhaust gas 17 of the solid oxide fuel cell stack 3 with water vapor, a selective oxidizer 21 for CO which converts into carbon dioxide by reacting carbon monoxide in the exhaust gas 28 of the CO shift converter 20 with oxygen, a solid oxide fuel cell stack 23 which performs power generation by reacting electrochemically hydrogen in the exhaust gas 29 of the CO selection oxidizer 21 with oxygen, and a burner 7 which combusts the hydrogen and fuel in the fuel electrode exhaust gas 27 of the solid oxide fuel cell stack 3 with oxygen. By the exhaust heat from the burner 7, the natural gas 1 and the air 36 for the power generation are heated and raised in temperature. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
