| 摘要 |
There is provided a technique for manufacturing a hydrogen-containing gas, with which a reforming reaction is brought about stably and reliably from the inlet part of a catalytic reaction chamber 5, good reforming efficiency is achieved while preventing problems such as a decrease in catalytic activity caused by carbon deposition, and stable reforming performance can be maintained over an extended period. An oxygen-containing gas o is mixed with a feed gas f1 obtained by mixing steam with a hydrocarbon fuel, this mixture is introduced into a catalytic reaction chamber 5, and a partial oxidation reaction and a steam reforming reaction are conducted to obtain a hydrogen-containing gas. In this reforming, an antechamber 9 of the catalytic reaction chamber 5 is heated up to a self-ignition temperature T3 in a first catalyst section 50, where the self-ignition temperature T3 is the temperature at which a mixed gas f2 self-ignites during the advection period required for the mixed gas to move from a mixing chamber 8 to the catalytic reaction chamber 5, with this temperature being at least a minimum partial-oxidation temperature T1 and lower than a minimum steam reforming temperature T2. |
