Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 21, 2008
Patent Application Number
09804328
Date Filed
March 12, 2001
Patent Primary Examiner
Patent abstract
A gas stream containing nitrous oxide and ammonia is contacted with a catalyst composition containing a zeolite. N2O is reduced to N2 and H2O at low temperatures in a highly efficient manner. Ammonia-mediated reduction of nitrous oxide can be effectuated from gas streams having N2O concentrations as low as 1%. The gas stream may also contact a catalytic composition selective for the reduction of NOx. In this way, N2O and Nx treatment may be effectuated in a single process stream.
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