| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalytic structure which has a small draft loss, is made compact, has high performance and can be prevented from being clogged with dust. SOLUTION: The catalytic structure is obtained by layering a plurality of plate-like catalysts, on the surface of each of which a component having catalytic activity is deposited, on one another, has a flow path between the adjacent plate-like catalysts and is characterized in that the catalytic structure is divided into two or more stages with respect to the flow direction of gas and the plate-like catalyst-layered directions of the adjacent divided stages are rotated alternately by 90°. It is better in order to exhibit the maximum performance of the catalytic structure when used for cleaning exhaust gas that the ratio L/d of the length L of the plate-like catalyst to the pitch width d of the layered plate-like catalysts is <100 and the ratio s/d of the space s between the adjacent ones of the layered plate-like catalysts to the pitch width d is <5. As a result, the catalytic structure can exhibit such an effect that the catalytic structure has the small draft loss, is made compact, has high performance and can be prevented from being clogged with dust. COPYRIGHT: (C)2011,JPO&INPIT
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