Apparatus for removal of nitrogen oxides from flue gas

Details Apparatus for removal of nitrogen oxides from flue gas Apparatus for removal of nitrogen oxides from flue gas

1987-06-02

1989-06-06

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422172, 422175, B01J 804

Patent

active

048369888

ABSTRACT:
Apparatus for 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 oxides, 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: 3189417 (1965-06-01), Houdry et al.
patent: 3190730 (1965-06-01), Korwin et al.
patent: 3733181 (1973-05-01), Turtellotte et al.
patent: 3879944 (1975-04-01), Bertsch
patent: 4160805 (1979-07-01), Inaba et al.
patent: 4186171 (1980-01-01), Stoddard et al.
patent: 4246235 (1981-01-01), Rogers

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