Adsorbents for removing low-concentration nitrogen oxides

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

1995-04-27

1997-03-18

Lovering, Richard D.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Aluminum containing

252189, 252190, 4232391, 502400, B01J 2006, B01J 2008, B01J 2010, B01J 2016

Patent

active

056122764

ABSTRACT:
The invention provides first to fourth adsorbents for removing low-concention 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 dehumidification or only with dehumidification on a reduced scale.

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