Method for removing nitrogen oxides from waste gases

Details Method for removing nitrogen oxides from waste gases Method for removing nitrogen oxides from waste gases

1983-07-27

1986-01-14

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423395, 423396, C01B 2100, C01B 2148, C01C 118

Patent

active

045645108

ABSTRACT:
A method is provided for removing nitrogen oxides from waste gases, said method comprising the steps of oxidizing the nitrogen oxides in the waste gases by contacting the waste gases in a gas phase with an oxidizing agent to form NO.sub.2 ; absorbing the formed NO.sub.2 in an absorbing stage by contacting the oxidized waste gases with an absorbing agent to form an absorbing product while substituting fresh water for vaporized water in corresponding amounts; and processing the resultant absorbing product as a solution.

REFERENCES:
patent: 3453071 (1969-07-01), Schmitt et al.
patent: 4029739 (1977-06-01), Senjo et al.
patent: 4425313 (1984-01-01), Cooper
patent: 4426364 (1984-01-01), Cooper

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