About: Modelling of NOx storage + SCR exhaust gas aftertreatment system with internal generation of ammonia

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Combination of an NOx storage and reduction catalyst (NSRC, called also lean NOx trap, LNT) and a catalyst for the selective catalytic reduction of NOx by NH3 (NH3-SCR) offers a potential to significantly increase the efficiency of NSRC-based exhaust gas aftertreatment systems. Under most situations the SCR catalyst is able to adsorb the NH3 peaks generated in the NSRC during the regeneration and utilise it for additional NOx reduction in the course of the consequent lean phase. This synergy becomes more important with the aged NSRC, where generally lower NOx conversions and higher NH3 yields in wider range of operating temperatures are observed (in comparison with the fresh or de-greened NSRC). In this paper we present global kinetic models for the NSRC (Pt/Ba/Ce/γ-Al2O3 catalyst type) and NH3-SCR (Fe-ZSM5 catalyst type). The NSRC regeneration by a mixture of CO, H2 and HC is considered with a differentiated activity and selectivity of individual reducing agents in the NOx reduction. The oxygen Combination of an NOx storage and reduction catalyst (NSRC, called also lean NOx trap, LNT) and a catalyst for the selective catalytic reduction of NOx by NH3 (NH3-SCR) offers a potential to significantly increase the efficiency of NSRC-based exhaust gas aftertreatment systems. Under most situations the SCR catalyst is able to adsorb the NH3 peaks generated in the NSRC during the regeneration and utilise it for additional NOx reduction in the course of the consequent lean phase. This synergy becomes more important with the aged NSRC, where generally lower NOx conversions and higher NH3 yields in wider range of operating temperatures are observed (in comparison with the fresh or de-greened NSRC). In this paper we present global kinetic models for the NSRC (Pt/Ba/Ce/γ-Al2O3 catalyst type) and NH3-SCR (Fe-ZSM5 catalyst type). The NSRC regeneration by a mixture of CO, H2 and HC is considered with a differentiated activity and selectivity of individual reducing agents in the NOx reduction. The oxygen (en)
Title	Modelling of NOx storage + SCR exhaust gas aftertreatment system with internal generation of ammonia Modelling of NOx storage + SCR exhaust gas aftertreatment system with internal generation of ammonia (en)
skos:prefLabel	Modelling of NOx storage + SCR exhaust gas aftertreatment system with internal generation of ammonia Modelling of NOx storage + SCR exhaust gas aftertreatment system with internal generation of ammonia (en)
skos:notation	RIV/60461373:22340/10:00023485!RIV11-MSM-22340___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6046137306)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Marek, Miloš Kočí, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	271958
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/10:00023485
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	NOx storage catalyst; Lean NOx trap; Selective NOx reduction; NH3; Mathematical modelling; Automobile exhaust gas conversion (en)
http://linked.open.../riv/klicoveSlovo	Mathematical modelling Lean NOx trap Automobile exhaust gas conversion NOx storage catalyst Selective NOx reduction NH3
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[BCA7B4A2C56C]
http://linked.open...i/riv/nazevZdroje	SAE International Journal of Fuels and Lubricants
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	3
http://linked.open...iv/tvurceVysledku	Kočí, Petr Marek, Miloš Chatterjee, Daniel Schmeisser, Volker Weibel, Michel
http://linked.open...n/vavai/riv/zamer	Reakčně-transportní chemicko-inženýrské systémy a jejich dynamické chování, modelování a řízení chemických a biotechnologických procesů
issn	1946-3952
number of pages	23 (xsd:int)
http://localhost/t...ganizacniJednotka	22340

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