Mass transfer effects in modelling of catalytic monolith converter with NOx storage

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F02%3A00007173" target="_blank" >RIV/60461373:22340/02:00007173 - 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
Mass transfer effects in modelling of catalytic monolith converter with NOx storage
Original language description
NOx storage and reduction catalytic converters (NSRC) have been developed to lower the emissions of nitrogen oxides (NOx) from economical lean-burn gasoline and diesel engines. In the course of longer lean period, NOx are stored on the surface under theexcess of oxygen. Then they are reduced within the short enrichment phase by the excess of components resulting from the rich fuel injection (CO, H2 and hydrocarbons). Multiphase, spatially pseudo-2D mathematical model has been developed to study the mass transport effects in the NSR catalytic monolith reactors. It includes the description of external mass transfer from the bulk gas to the pores of the catalytic layer (washcoat) and internal diffusion and reactions in the porous structures of the catalyst, with surface deposition of chosen components (oxygen and NOx storage). The simulation results of periodic lean/rich operation of NSR converter are presented and mass transport effects and their limitations are discussed. The influence
Czech name
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Czech description
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Project
<a href="/en/project/GA104%2F02%2F0339" target="_blank" >GA104/02/0339: Nonstationary operation of microreactors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
15th Int. Congress of Chem. and Process Engng - CHISA, Prague 25.- 29. 8. 2002, CD-ROM
ISBN
80-86059-33-2
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
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Publisher name
Česká společnost chemického a procesního inženýrství
Place of publication
Praha
Event location
Praha
Event date
Aug 25, 2002
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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