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    • 23. 发明专利
    • FUEL REFORMER
    • JPH0867502A
    • 1996-03-12
    • JP20524694
    • 1994-08-30
    • NGK INSULATORS LTDCHUBU ELECTRIC POWER
    • MISAWA HIDENOBUMATSUURA ICHIROEZAKI YOSHIMIHATTORI MASATOSHI
    • C01B3/38H01M8/06
    • PURPOSE: To provide a fuel reformer having small volume of a catalytic layer and small catalytic amount, capable of attaining cost down and carrying out reforming reaction in high efficiency and miniaturizing. CONSTITUTION: A gas which flows into a reacting tube 1 is discharged from the outlet of the first catalyst part 12 before lowering to a carbon deposition temperature Tc in the first catalyst part 12 and the gas is heated by a heating furnace 2 in a heat transfer promoting part 5 on the downstream side of the first catalyst part to raise the temperature of the gas. Then, the gas is fed into the second catalyst part 13 and reforming reaction of the gas by the second catalyst part 13 is promoted and the gas is discharged before the temperature of the gas is lowered to a temperature lower than a carbon deposition temperature Tc also in the second catalyst part 13. Since the gas alternately flows into catalytic parts 12, 13, 14, 15 and 16 and heat transfer promoting parts 5, 6, 7 and 8, reaction temperature is always retained to a temperature exceeding the carbon deposition temperature Tc. As a result, deposition of carbon is suppressed and operation having low S/C value is made possible and efficiency of a fuel cell system can be improved.
    • 28. 发明专利
    • DEVICE FOR REFORMING FUEL
    • JPH06287003A
    • 1994-10-11
    • JP7437993
    • 1993-03-31
    • CHUBU ELECTRIC POWERNGK INSULATORS LTD
    • EZAKI YOSHIMIHATTORI MASATOSHIMISAWA HIDENOBUNAGASAKA YUKINOBU
    • B01D35/027B01J15/00C01B3/38
    • PURPOSE:To provide a fuel-reforming device reducing the lowering of temperature in a catalyst and high in reactivity, in the fuel-reforming device having a honeycomb-like catalyst. CONSTITUTION:Honeycomb-like catalysts 11 are packed into a cylindrical reaction tube 20 constituting a fuel-reforming device 10 at a constant distance, and heat conductors 31 are packed between the honeycomb-like catalysts 11. A heater 30 is tightly brought into contact with the reaction tube 20 to wrap the whole outer periphery of the reaction tube 20. The heat conductor 31 comprises a nickel metal honeycomb. The reaction tube is formed from a cylindrical stainless steel. The heater 30 is an inner surface combustion type burner. The raw material consists mainly of methane and steam, and is fed from an inlet tube 21 into the reaction tube 20. The raw material gas is chemically reacted to produce hydrogen gas, when passing through the honeycomb-like catalyst 11. The raw material gas heated and mixed with the next heat conductor 31 is further flowed into the next honeycomb-like catalyst 11. The raw material gas successively passes through the heat conductors 31 and the honeycomb-like catalysts 11 and is reformed.