Investigation of Automobile Exhaust Gas Catalytic Converters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F09%3A00021906" target="_blank" >RIV/60461373:22340/09:00021906 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Investigation of Automobile Exhaust Gas Catalytic Converters
Original language description
Economical diesel and advanced gasoline (lean-burn) engines are operated with excess of air in fuel mixture (=lean mixture), which results in high O2 concentrations in exhaust gas and complicated NOx abatement. In the NOx storage and reduction catalyst,the NOx are adsorbed on the catalyst surface during a longer lean phase (several minutes), and then reduced during a short rich phase with excess of reducing agents CO, H2 and HC (several seconds). Possible products of the NOx reduction are nitrogen (N2), ammonia (NH3) and nitrous oxide (N2O, usually minor amount). The presented laboratory experiments deal with the dynamic behaviour of periodically operated industrial PtRh/BaO/CeO2/?-Al2O3 based catalyst. The measurements investigate the influence of temperature, inlet gas composition and timing of the lean/rich switching on the NOx reduction dynamics, product selectivity, and integral NOx conversion.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of 36th International Conference of Slovak Society of Chemical Engineering
ISBN
978-80-227-3072-3
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
Slovak University of Technology
Place of publication
Bratislava
Event location
Tatranské Matliáre
Event date
May 25, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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