Methods of purifying gas containing nitrogen oxide, and composit

Details Methods of purifying gas containing nitrogen oxide, and composit Methods of purifying gas containing nitrogen oxide, and composit

1974-10-21

1977-05-24

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423235, B01D 5304

Patent

active

040256030

ABSTRACT:
In removing nitrogen oxide from a gas containing it, the gas is passed through a region where at least one of calcium sulfate and calcium hydroxide coexists with powerful oxidation agents such as sodium chlorite, potassium permanganate, etc. thereby removing the nitrogen oxide, mainly nitrogen monoxide, from the gas. This method is very effective in purifying exhaust gases resulting from burning operations, since 80 to 90% or more of the nitrogen oxide contained in the exhaust gases is nitrogen monoxide. In addition, this method is also effective in purifying indoor air.

REFERENCES:
patent: 1092295 (1914-04-01), Schloesing
patent: 1115164 (1914-10-01), Bosch et al.
patent: 2684283 (1974-07-01), Ogg et al.
patent: 3348914 (1967-10-01), Quanquin et al.
patent: 3382033 (1968-05-01), Kitagawa
patent: 3498743 (1970-03-01), Kyllonen
patent: 3904739 (1975-09-01), Uehara et al.

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