Process for abating concentration of nitrogen oxides in combusti

Details Process for abating concentration of nitrogen oxides in combusti Process for abating concentration of nitrogen oxides in combusti

1977-07-21

1978-10-10

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423351, C01B 2100

Patent

active

041197020

ABSTRACT:
Nitrogen oxides in a combustion flue gas are removed by reduction in a gaseous phase at a low temperature in the absence of any catalyst by adding urea and an oxidizing agent for decomposition of urea, such as ozone, nitric acid, hydrogen peroxide, chlorine, chlorine dioxide, or oxy acids of chlorine or their salts. NO.sub.x removal can be carried out in a very simplified manner with high percent NO.sub.x removal.

REFERENCES:
patent: 3023076 (1962-02-01), Karwat
patent: 3565575 (1971-02-01), Warshaw
patent: 3733393 (1973-05-01), Couillaud et al.
patent: 3801696 (1974-04-01), Mark
patent: 3846981 (1974-11-01), Paczkowski
patent: 3900554 (1975-08-01), Lyon
patent: 3957949 (1976-05-01), Senjo et al.
patent: 3961018 (1976-06-01), Williamson

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