Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Patent
1996-05-07
1997-10-28
Tran, Hien
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
422169, 422172, 422182, 110345, 239398, 3661781, B01D 5334, B01F 1502
Patent
active
056815360
ABSTRACT:
An injection lance for injecting a mixture of air and anhydrous ammonia into a boiler having a flue gas stream moving therethrough to reduce nitrogen oxides therein. The lance includes outer, intermediate and inner tubes. The outer end of the inner tube is in communication with a source of anhydrous ammonia while the outer end of the outer tube is in communication with a source of mixing air. The outer end of the intermediate tube sealably embraces the exterior surface of the inner tube so that air being introduced into the outer tube passes towards the inner end of the lance between the outer and intermediate tubes. The mixing air and the anhydrous ammonia are passed into the space between the inner tube and the intermediate tube and then are discharged from the lance through discharge nozzles or ports which extend from the interior of the intermediate tube to the exterior of the outer tube.
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Bruns Wayne A.
Cheek Ronald M.
Jurgens Mark A.
Kirby Raymond V.
Largis Kevin A.
Nebraska Public Power District
Thomte Dennis L.
Tran Hien
LandOfFree
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