Modeling of a combined exhaust aftertreatment system: DOC-pipe-NH3 -SCR

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F16%3A43902326" target="_blank" >RIV/60461373:22340/16:43902326 - 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
Modeling of a combined exhaust aftertreatment system: DOC-pipe-NH3 -SCR
Original language description
This paper deals with the mathematical modeling of a combined exhaust gas aftertreatment system "DOC-pipe-SCR" and its variation "pipe-DOC-SCR", considering V2O5-WO3/TiO2 type of SCR catalyst for heavy-duty Diesel engines. The aim is to improve NOx conversion in the SCR catalyst over the driving cycle ETC by proper design of the oxidation catalyst (DOC), focusing on its size and location in the system. The effect of heat losses and arrangement of the connecting pipe is also examined. NOx conversion is evaluated during the European Transient Cycle for heavy-duty engines. In order to achieve maximum NOx conversion in SCR, it is desirable to keep NO2/NOx ratio close to 0.5 and temperature above 250 oC. The study reveals minor effect of DOC position within the system on the NOx conversion, but optimization of the DOC loading by Pt and the pipe insulation properties enhanced the NOx conversion by approximately 6%.
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings 43rd International Conference of the Slovak Society of Chemical Engineering
ISBN
978-80-89597-35-2
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
688-695
Publisher name
Slovak Society of Chemical Engineering
Place of publication
Bratislava
Event location
Tatranské Matliare
Event date
May 23, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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