Process for separation of NOx from N2O in a mixture

The present invention relates to a reactive adsorption process for separating N O from a mixture that includes other nitrogen oxides ("NO ") including NO and NO /N O and, in particular to a process for selectively converting NO in a mixture by an oxidant to NO /N O , which is selectively a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Chiang, Chen-Chou, Vo, Toan P
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a reactive adsorption process for separating N O from a mixture that includes other nitrogen oxides ("NO ") including NO and NO /N O and, in particular to a process for selectively converting NO in a mixture by an oxidant to NO /N O , which is selectively adsorbed from the mixture by an adsorbent and recovering a substantially reduced NO stream of N O stream. The adsorbed NO can be recovered from the adsorbent by a number of procedures such as elevating the temperature, reducing the pressure, inert gas purging, water washing or any combination thereof. The present invention is a reactive adsorption process for separating NO(NO and NO/NO) from NO in a mixture. The process comprises (A) selectively converting NO to NO/NOin a mixture with an oxidant and (B) selectively adsorbing NO/NOfrom the mixture by an adsorbent and © recovering a stream of NO having a substantially reduced NOconcentration. The adsorbed NOcan be recovered from the adsorbent by elevated temperature, reduced pressure, inert gas purge, water wash or any combination thereof.