| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas catalytic oxidation method capable of keeping a required cost very low even when reliable treatment is applied to a high- concentration gas component requiring a comparatively large quantity of a gas component and/or processing and to provide a recombination device for performing this method and a system having this kind of recombination device. SOLUTION: Gas flow G including a processed gas is made to flow circulatedly via a reaction band area 4 inside the recombination device 1 and a circulation band area 6 communicated via the inlet side and the outlet side of the band area. For maintaining very effective circulation of the gas flow G by a passive system, the gas flow G including the processed gas is passed through the reaction band area 4 upward, and the upward flow flows convectively by heat emitted in oxidation reaction to be held. The gas flow G inside the circulation band area 6 is locally cooled down by spray cooling. COPYRIGHT: (C)2004,JPO
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