Ammonia storage and injection in NOx control

Details Ammonia storage and injection in NOx control Ammonia storage and injection in NOx control

2005-02-08

2005-02-08

Tran, Hien (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C422S169000, C422S177000

Reexamination Certificate

active

06852292

ABSTRACT:
A system is described for storing ammonia and injecting it into the exhaust gas stream of an engine to reduce nitrogen oxides. The ammonia is stored as a liquid mixture (70) of ammonia and water in a container (50). In one system, the mixture passes through a tube with a portion (62) in contact with the exhaust gas pipe (16) to heat the mixture and separate the ammonia from the water, with the ammonia being further heated at a nozzle (84) to activate the ammonia before injection into an upstream portion of the exhaust gas pipe.

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