Process for reducing nitrogen oxides from flue gas

Details Process for reducing nitrogen oxides from flue gas Process for reducing nitrogen oxides from flue gas

1975-09-16

1977-04-05

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

B01D 5334

Patent

active

040162419

ABSTRACT:
Nitrogen oxides are removed from gas mixtures containing nitrogen oxides and oxygen by adding a reducing agent that is a C.sub.2 to C.sub.6 olefin or an aromatic hydrocarbon such as benzene or toluene, preferably butene-1, and contacting the mixture at 200.degree. to 450.degree. C with a catalyst comprising iridium or a compound thereof supported on a refractory carrier, preferably alumina.

REFERENCES:
patent: 3867507 (1975-02-01), Myerson
patent: 3896616 (1975-07-01), Keith

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