| 摘要 |
PROBLEM TO BE SOLVED: To provide a reforming system, in which damage to a catalyst and the heat strain of an apparatus are prevented by preventing the radical change of the temperature in the system when the operation is stopped and simultaneously the entering of air from the outside is easily prevented. SOLUTION: In the reforming system provided with a reformer 6 for producing a reformed gas by reforming fuel and a power source 8 working by using the reformed gas produced in the reformer as fuel, a refluxing passage for refluxing an exhaust gas to the reformer from valves V6 and V7 when the operation is stopped is formed and a gas circulating passage is formed by sealing the gas in the system by valves V1, V3, V4, V6 and V7 and the sealed gas is circulated by a pump 12. It is prevented that the pressure in the system becomes negative by controlling the quantity of the combustion gas (exhaust gas produced in the reforming system) produced in a combustor 11. |
