Removal of nitrogen oxides from flue gas

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

1985-04-05

1988-02-16

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

B01J 800, C01B 2100

Patent

active

047254165

ABSTRACT:
For the removal of deleterious gaseous components from a flue gas, the flue gas is cooled, optionally subjected to preliminary purification, and optionally depleted of SO.sub.2. It is then heated in at least one heat exchanger and is passed over a catalyst suitable for the conversion of nitrogen oxide, whereupon the purified hot flue gas is conducted over at least one further heat exchanger and is discharged in the cooled state. Ammonia is preferably added to the heated flue gas.

REFERENCES:
patent: 3897539 (1973-07-01), Fleming
patent: 4026992 (1977-05-01), Shiga et al.
patent: 4307068 (1981-12-01), Matsumoto et al.

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