Method of reducing the N.sub.2O content of gases and selected catalysts
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United States of America Patent
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Aug 21, 2007
Grant Date -
Jun 10, 2004
app pub date -
Mar 6, 2002
filing date -
Mar 13, 2001
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Abstract
A method of reducing the N.sub.2O content in gases is described. A selected zeolite catalyst is used in the method. This catalyst is present in the H form and/or contains exchanged iron and is characterized by the presence of nonlattice aluminum in addition to the lattice aluminum in a molar ratio of from 1:2 to 20:1.The method can be used in nitric acid production for reducing the N.sub.2O content of process gases or offgases.
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