摘要:
In a fuel cell system 10, a cracking unit 20 is provided upstream of a reformer 36. When the cracking unit 20 is supplied with oxygen and gasoline as a hydrocarbon-based fuel, the gasoline is partially oxidized and decomposed using oxidation-generated heat to give a hydrocarbon with a lower carbon number. The hydrocarbon with the lower carbon number obtained by such gasoline pyrolysis is fed to the reformer 36 and supplied to a reforming reaction zone.
摘要:
In a system for generating hydrogen gas by reforming raw material, steam is continuously supplied while the supply of raw material and air to a reforming unit is stopped, so as to purge residual flammable material within the system with steam such that even if oxygen is supplied, heat generated by a reaction between the residual flammable material within the system and the oxygen does not effect the system, and the steam is removed from the system by air purging so as to prevent adverse effects from condensation.
摘要:
A heat exchanger 32 comprises a first heat exchanger 40 for allowing heat to be exchanged between water and a reformed gas from a reforming reactor, a second heat exchanger 50 for spraying and vaporizing water in the reformed gas from the first heat exchanger 40, and a third heat exchanger 60 for vaporizing unvaporized or precipitated water. The reformed gas from the reforming reactor is cooled by the heating and vaporizing of water, and is mixed with the vaporized water and fed as mixed gas to a water gas shift reactor. The processes of cooling the reformed gas, heating and vaporizing of the water, and mixing the reformed gas and steam are completed in the heat exchanger 32, making it possible to design a smaller, simpler, and more efficient apparatus.