Konverze a selektivita redukce NOx v katlyzátoru s ukládáním NOx

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F08%3A00020766" target="_blank" >RIV/60461373:22340/08:00020766 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Conversion and selectivity of NOx reduction in NOx storage catalyst

Popis výsledku v původním jazyce

Due to the ever increasing emissions standards for combustion engines continually better exhaust after-treatment technologies have been developed. An area of particular interest is that of lean burn engines. Lean burn gasoline or diesel engines are morefuel efficient than standard stoichiometric gasoline engines. However, because of the excess oxygen, conventional three-way catalysts cannot reduce NOx compounds in the exhaust stream. One potential solution is the use of NOx storage and reduction (NSR)catalysts. These catalysts consist of a noble metal for oxidation and reduction of NOx (e.g. Pt), and an alkaline or alkaline earth metal for storage of NOx (e.g. Ba). The NSR catalyst is used with a cyclic engine operation, switching between long lean and short rich periods. During the lean period the catalyst oxidizes NO to NO2 on the noble metal sites and stores the NOx (NO and NO2) on the alkaline earth sites. During the rich period, the NOx is released from the storage sites and red

Název v anglickém jazyce

Conversion and selectivity of NOx reduction in NOx storage catalyst

Popis výsledku anglicky

Due to the ever increasing emissions standards for combustion engines continually better exhaust after-treatment technologies have been developed. An area of particular interest is that of lean burn engines. Lean burn gasoline or diesel engines are morefuel efficient than standard stoichiometric gasoline engines. However, because of the excess oxygen, conventional three-way catalysts cannot reduce NOx compounds in the exhaust stream. One potential solution is the use of NOx storage and reduction (NSR)catalysts. These catalysts consist of a noble metal for oxidation and reduction of NOx (e.g. Pt), and an alkaline or alkaline earth metal for storage of NOx (e.g. Ba). The NSR catalyst is used with a cyclic engine operation, switching between long lean and short rich periods. During the lean period the catalyst oxidizes NO to NO2 on the noble metal sites and stores the NOx (NO and NO2) on the alkaline earth sites. During the rich period, the NOx is released from the storage sites and red

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F08%2F1162" target="_blank" >GA104/08/1162: Monolitické reaktory pro detoxifikaci výfukových plynů</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

CD-ROM of Full Texts CHISA 2008

ISBN

978-80-02-02047-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Process Engineering Publisher

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

24. 8. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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