Process for lowering nitrogen oxides in effluent gases

Details Process for lowering nitrogen oxides in effluent gases Process for lowering nitrogen oxides in effluent gases

1974-07-24

1976-11-09

Peters, G. O.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423394, 423235, C01B 2140

Patent

active

039911675

ABSTRACT:
A process for reducing the level of nitrogen oxide contaminants in an industrial effluent gas comprises (a) oxidizing said gas to convert the contaminants substantially to a mixture of N.sub.2 O.sub.3 and NO.sub.2 and (b) passing the oxidized gas through an aqueous medium containing an amount of hydrogen peroxide maintained at a level just sufficient to oxidize the N.sub.2 O.sub.3 and NO.sub.2 to HNO.sub.3.

REFERENCES:
patent: 1348873 (1920-08-01), Guye
patent: 3733393 (1973-05-01), Couillaud et al.

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