Method for Decomposing N2O Utilizing Catalysts Comprising Calcined Anionic Clay Minerals

Method for Decomposing N2O Utilizing Catalysts Comprising Calcined Anionic Clay Minerals

The invention describes a highly efficient catalytic pollution control process for removing N2O from gaseous mixtures. The process utilizes catalysts derived from anionic clay minerals, which after appropriate heat activation, provide superior N2O decomposition activity. The catalytic process compri...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ARMOR, JOHN N, SWAMY, CUNCHALA S, KANNAN, SRINIVASAN, LI, YUEJIN, BRAYMER, THOMAS A
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The invention describes a highly efficient catalytic pollution control process for removing N2O from gaseous mixtures. The process utilizes catalysts derived from anionic clay minerals, which after appropriate heat activation, provide superior N2O decomposition activity. The catalytic process comprises contacting an N2O-containing gaseous mixture with the decomposition catalyst under conditions sufficient to convert the N2O into gaseous nitrogen and gaseous oxygen. The process catalysts are derived from anionic clay materials such as the hydrotalcites, sjogrenites and pyroaurites.