Claims
- 1. A cleaning kit for a fossil fuel burning facility in which a flue gas flow path is defined, said cleaning kit serving to remove process impurities carried on a surface of a wholly or partially deactivated Nox reduction catalyst which is installed in the flue gas flow path exiting from the fossil fuel burning facility to at least partially reactivate such catalyst, the cleaning kit, comprising:a movable cleaning reagent supply grid adapted to be selectively positioned above a portion of a catalyst layer; a source of supply of liquid cleaning reagent adapted to be in communication with said supply grid, from which a portion of the liquid cleaning reagent is directed through said supply grid in a manner that essentially all of said portion of said catalyst lever has liquid cleaning reagent passing therethrough, said liquid cleaning reagent being in contact with said portion of said catalyst layer for the removal of at least a portion of such process impurities therefrom; a cleaning reagent collection basin adapted to be selectively positioned below such portion of said catalyst layer to catch cleaning reagent therein after such reagent passes through such portion of said catalyst layer; and recirculating means for recirculating at least a portion of such cleaning reagent received from said collecting basin and delivering same to said supply grid, said recirculating means including at least one of: a separating device for removing at least a portion of accumulated solids from said at least a portion of such cleaning reagent prior to recirculation through said supply grid, and adding portion means operative to supply additives to the liquid cleaning reagent.
- 2. The cleaning kit as defined in claim 1, wherein said adding portion means includes a source of water based cleaning reagent, as well as a source for the selective addition of additional admixtures to such liquid cleaning reagent.
- 3. The cleaning kit as defined in claim 1, wherein said separating device comprises a hydrocyclone.
Priority Claims (1)
Number |
Date |
Country |
Kind |
196 28 212 |
Jul 1996 |
DE |
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Parent Case Info
This application is a divisional of Ser. No. 09/147,477 filed Jan. 7, 1999, now U.S. Pat. No. 6,232,259, which is a 371 of PCT/97/03650 filed Jul. 10, 1997.
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