Catalytic reduction of nitrous oxide content in gases
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United States of America Patent
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Jan 27, 2004
Grant Date -
N/A
app pub date -
Mar 5, 2001
filing date -
Dec 31, 1997
priority date (Note) -
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Abstract
A process and catalyst for reducing the nitrous oxide content in gas, which operates at relatively low temperatures, the activity of which is relatively insensitive to the presence of water vapour and which is highly resistant to hydrothermal degradation, is prepared from ferrierite exchanged with iron. Application to the treatment of gases with a low N.sub.2 O content, such as gases resulting from plants for the manufacture of nitric acid, and of gases with a high N.sub.2 O content, which are emitted during oxidations of organic compounds by nitric acid.
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