| abstract |
(57) [Summary] [Purpose] To efficiently convert a nitrogen oxide-containing gas and / or a sulfur oxide-containing gas into harmless nitrogen and a compound that can use a compact device having small gas passage resistance. . [Structure] A fine carbon powder raw material and a binder are kneaded, It is molded into a honeycomb shape, carbonized, and activated to obtain a honeycomb-shaped activated carbon. Alternatively, finely powdered activated carbon and a binder are kneaded and molded into a honeycomb shape to obtain a honeycomb-shaped activated carbon. Such a honeycomb-shaped activated carbon has a small gas passage resistance, Due to the dense structure, the device used can be made compact and the nitrogen oxide-containing gas and / or the sulfur oxide-containing gas can be efficiently converted into harmless nitrogen and compounds. |