Apparatus for removing nitrogen oxides

Details Apparatus for removing nitrogen oxides Apparatus for removing nitrogen oxides

1985-11-08

1988-02-23

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422 49, 422193, 422219, 436 37, B01J 804

Patent

active

047269359

ABSTRACT:
In an apparatus for removing NOx from a flue gas comprising an ammonia injection tube in a flue gas duct, an NOx removal reactor containing a catalyst at the downstream side of the ammonia injection tube, and a bracket casing catalyst test pieces being provided in the reactor and fixed to the reactor in a detachable manner from the outside of the reactor apart from the catalyst, deterioration of catalyst can be monitored during the operation of the boiler plant and sampling of catalyst can be carried out through the catalyst sample pieces without discontinuing the operation of the apparatus for removing NOx.

REFERENCES:
patent: 2753246 (1956-07-01), Shields et al.
patent: 2873248 (1959-02-01), Tate et al.
patent: 3787183 (1974-01-01), Kennedy, Jr.
patent: 4026992 (1977-05-01), Shiga et al.
patent: 4307068 (1981-12-01), Matsumoto et al.
patent: 4565679 (1986-01-01), Michalak et al.

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