METHOD OF MANUFACTURING GAS PURIFYING FACILITY, GAS PURIFICATION MATERIAL, AND GAS PURIFICATION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a purifier and a purifying material for gas which has excellent effects such as easy maintenance and cost reduction, and a manufacturing method for the purifying material.

SOLUTION: This honeycomb structural body 7 is arranged with a large number of slender flow passages 9 adjacent to one another in parallel along the flow direction of exhaust gas. The respective flow passages 9 are separated by a partitioning wall 11, and one side or the other side of each flow passage 9 is sealed by a sealing portion 13. The honeycomb structural body 7 includes a purifying layer 17 formed of a metallic oxide which emits active oxygen over its total area on the one side (downstream of the exhaust gas) of a basic body 15 in a honeycomb form which becomes the base of the honeycomb structural body. The basic body 15 of the honeycomb structural body 7 is constituted of a porous material made of cordierite. On the other hand, the purifying layer 17 is a thin porous film mainly formed of a solid solution 12Ca-7Al2O3, of which the mean thickness is not larger than 100 μm and through which the exhaust gas can pass.

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