Absorbents for removing low-concentration nitrogen oxides

Details Absorbents for removing low-concentration nitrogen oxides Absorbents for removing low-concentration nitrogen oxides

B - Operations, Transporting

01

J

B01J 20/08 (2006.01) B01D 53/02 (2006.01) B01D 53/04 (2006.01) B01J 20/06 (2006.01) B01J 20/28 (2006.01)

Patent

CA 2081814

The invention provides first to fourth adsorb- ents for removing low-concentration nitrogen oxides. The first adsorbent comprises a carrier of gamma-alumina, and ruthenium supported thereon. The second adsorbent comprises a carrier of anatase-type titania, and ruthenium supported thereon. The third adsorbent comprises ceramic paper retaining a carrier of anatase-type titania thereon, and ruthenium supported on the ceramic paper. The fourth adsorbent comprises ceramic paper retaining a carrier of anatase-type titania thereon, and a ruthenium halide and a halide of addition metal which are co-supported on the ceramic paper. These adsorbents are free of the influence of moisture and therefore usable without necessitating energy-consuming dehumidi- fication or only with dehumidification on a reduced scale.

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