Oxidation catalyst for removal of nitrogen monoxide in exhaust g

Details Oxidation catalyst for removal of nitrogen monoxide in exhaust g Oxidation catalyst for removal of nitrogen monoxide in exhaust g

1974-05-06

1977-03-22

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252455Z, 423239, B01J 2900, B01J 2906

Patent

active

040135888

ABSTRACT:
The oxidation catalyst of this application is prepared by grinding and heat treating the tuff consisting essentially of SiO.sub.2, Al.sub.2 O.sub.3 and H.sub.2 O, and containing a total of 1 to 10% by weight of an alkaline metal oxide and alkaline earth metal oxide and having the X-ray diffraction pattern shown in the Table I or Table II. This catalyst eliminates NO in a dry exhaust gas which contains at least a small amount of oxygen.

REFERENCES:
patent: 3436356 (1969-04-01), Kato et al.
patent: 3476508 (1969-11-01), Kearby et al.
patent: 3498743 (1970-03-01), Kyllonen
patent: 3498928 (1970-03-01), Cho et al.
patent: 3545917 (1970-12-01), Stephens
patent: 3864450 (1975-02-01), Takeyama et al.
patent: 3880618 (1975-04-01), McCrea et al.

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