Fe-SAPO-34 CATALYST AND METHODS OF MAKING AND USING THE SAME
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United States of America Patent
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Issued Date -
Oct 4, 2012
app pub date -
Apr 3, 2012
filing date -
Apr 4, 2011
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Abstract
There is disclosed a method of making, through direct synthesis, a catalyst comprising an Fe-SAPO-34 molecular sieve. There is also disclosed an Fe-SAPO-34 molecular sieve made according to the disclosed method herein, wherein the molecular sieve contains both framework iron and iron cations at ion-exchange sites. In addition, there is disclosed a method of using the Fe-SAPO-34 disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia or urea, to reduce or remove nitric oxides from exhaust emissions.
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