Reduction of nitrogen oxides

Details Reduction of nitrogen oxides Reduction of nitrogen oxides

1989-12-14

1991-01-01

Langel, Wayne A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423351, 423352, C01B 2100, C01C 100

Patent

active

049816594

ABSTRACT:
A process is disclosed for reducing nitrogen oxides by passing them in admixture with ammonia or hydrogen over a group VIII metal catalyst on a hydrophobic support. The process is carried out at 0.degree.-200.degree. C. when hydrogen is used, or 100.degree.-200.degree. C. when ammonia is used. It is useful in pollution control, for example in reducing nitrogen oxide emissions in industrial waste gases.

REFERENCES:
patent: 2975025 (1961-03-01), Cohn et al.
patent: 3567367 (1971-03-01), Kandell et al.
patent: 3953566 (1976-04-01), Gore
patent: 4025560 (1977-05-01), Rolston et al.
patent: 4157315 (1979-06-01), Michaels et al.
patent: 4197272 (1980-04-01), Tighe
patent: 4206081 (1980-06-01), Inoca et al.
patent: 4213944 (1980-07-01), Azuhata et al.
patent: 4331520 (1982-05-01), Juda et al.
patent: 4471014 (1984-09-01), den Hartog et al.
patent: 4507271 (1985-03-01), Van Deyck et al.
patent: 4631263 (1986-12-01), Mizumoto et al.
patent: 4652537 (1987-03-01), Tamura et al.
patent: 4732743 (1988-03-01), Schmidt et al.
patent: 4748012 (1988-05-01), Weber et al.
patent: 4778665 (1988-10-01), Krishnamurthy et al.
patent: 4789531 (1988-12-01), Eichholtz et al.
WO86/05710 published Oct. 9, 1986.
Chemical Abstracts, vol. 81, 1974, p. 331, Abstract No. 158207e, Columbus, Oh., U.S.; & JP-A-74 18785 (Fuji Electric Co., Ltd.) 28-02-1979.
Chemical Abstracts, vol. 91, 1979, p. 284, Abstract No. 95981m Columbus, Oh. U.S.; & JP-A-79 26986 (Matsushita Electric Industrial Co. Ltd.) 28-02-1979.
English Abstract of EP 0286967.

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