Process for removal of NO.sub.x and SO.sub.x oxides from waste g

Details Process for removal of NO.sub.x and SO.sub.x oxides from waste g Process for removal of NO.sub.x and SO.sub.x oxides from waste g

1992-11-23

1994-07-12

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

42324301, 42324308, C01B 2100, C01B 1700

Patent

active

053286731

ABSTRACT:
A process for removing NO.sub.x oxides and SO.sub.x oxides from gaseous streams contacts the gaseous stream with an aqueous solution of chloric acid. The process of the invention removes sulfur oxides and nitrogen oxides from waste gas streams without producing inorganic salts. In addition, the use of chloric acid provides improved oxidation of NO and SO.sub.2. The process can be operated to treat "dirty" gas streams containing particulates and compounds which may poison or contaminate NO.sub.x removal systems employing catalysts.

REFERENCES:
patent: 4451442 (1984-05-01), Jeffrey et al.
patent: 4619608 (1986-10-01), McIntyre et al.
patent: 4968501 (1990-11-01), Mason
patent: 5084148 (1992-01-01), Kaczur et al.

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