Process for the removal of nitrogen oxides from flue gases

Details Process for the removal of nitrogen oxides from flue gases Process for the removal of nitrogen oxides from flue gases

1991-07-29

1992-08-18

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423244, B01J 800, C01B 2100, C01B 1700

Patent

active

051397579

ABSTRACT:
Process for the removal of nitrogen oxides in hot flue gas by catalytic reduction with a reducing agent, which process comprises continuously introducing the flue gas into a section of a sectional divided denitration catalyst unit countercurrently with fresh air passing through an other section of the catalyst, and continuously adding the reducing agent into a third section of the catalyst between the section traversed by the flue gas and the section traversed by the air, the third section being traversed by the air before addition of the reducing agent by continuously or stepwise changing the position of the catalyst sections.

REFERENCES:
patent: 3897539 (1975-07-01), Fleming

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