Process for removing nitrogen oxide from a waste gas

Details Process for removing nitrogen oxide from a waste gas Process for removing nitrogen oxide from a waste gas

1975-08-14

1977-05-17

Meros, Edward J.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423400, 423396, C01B 2100

Patent

active

040242196

ABSTRACT:
A process for removing nitrogen oxide contained in a waste gas is disclosed which includes oxidizing the nitrogen oxide to nitrogen dioxide by mixing the gas with nitric acid vapor in the presence of porous adsorbing agent such as silica gel, colloid earth, alumina, molecular sieves or the like and removing the nitrogen dioxide by absorption with an alkali aqueous solution.

REFERENCES:
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patent: 3079232 (1963-02-01), Andersen et al.
patent: 3389961 (1968-06-01), Sundaresan et al.
patent: 3428414 (1969-02-01), Baum et al.
patent: 3453071 (1969-07-01), Schmitt et al.
Chem. Abstr. 9534, 1958, vol. 52.
Chem. Abstr. 13204(b), 1958, vol. 52.
Ind. & Eng. Chem., vol. 52, No. 12, Dec. 60, pp. 1011-1014, Reactions of Aqueous NO.sub.2 , Kovac et al.

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