Removal of nitrogen oxides from gas

Details Removal of nitrogen oxides from gas Removal of nitrogen oxides from gas

1981-11-04

1983-08-23

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423385, 423395, 423396, 423523, 436163, C01B 2100, C01B 2120, C01B 2148, C01C 118

Patent

active

044003625

ABSTRACT:
Gas containing nitrogen oxides is treated in two separate stages. In the first stage, the nitrogen oxides in the gas are reacted with sulfurous acid. The gaseous product of this reaction is reacted with an alkaline solution, typically caustic alkali. As a result of these treatments, the nitrogen oxides are converted into neutral salts.

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