Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1996-10-25
2000-05-30
Dunn, Tom
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
95129, B01D 5926
Patent
active
060688246
ABSTRACT:
This invention discloses an adsorbent ideal or the removal of nitrogen oxides (NO.sub.x : nitrogen monoxide and nitrogen dioxide), particularly nitrogen dioxide, from an exhaust gas containing the nitrogen oxides at low concentrations and a method for efficient removal of nitrogen oxides, particularly nitrogen dioxide, from an exhaust gas containing the nitrogen oxides at low concentrations by the use of the adsorbent. The adsorbent either comprises at least one noble metal selected from the group consisting of Pt, Au, Ru, Rh, and Pd and/or a compound thereof supported on a carrier or comprises the noble metal component and an oxide of at least one heavy metal selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and Pb, which may be supported on the carrier, if necessary.
REFERENCES:
patent: 3795730 (1974-03-01), Kalvinakas
patent: 5585082 (1996-12-01), Ziebarth et al.
patent: 5612276 (1997-03-01), Onitsuka et al.
patent: 5650127 (1997-07-01), Campbell et al.
Patent Abstracts of Japan, Jun. 30, 1992, vol. 16, No. 295.
Kinoshita Futoru
Kobayashi Motonobu
Kondo Hisao
Masaki Shinyuki
Behr Esq. Omri M.
Dunn Tom
Nippon Shokubai Co. , Ltd.
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