Passive SCR for lean gasoline NOX control: Engine-based strategies to minimize fuel penalty associated with catalytic NH3 generation

[Display omitted] •Air-fuel equivalence ratio impacts both NH3 selectivity and fuel penalty.•Fuel penalty reduced with increased engine-out NOX via spark timing and EGR.•Engine acceleration increases NOX and reduces fuel penalty.•Fuel consumption benefits of 10% are achieved. Lean gasoline engines o...

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Veröffentlicht in:	Catalysis today 2016-06, Vol.267 (C), p.202-209
Hauptverfasser:	Prikhodko, Vitaly Y., Parks, James E., Pihl, Josh A., Toops, Todd J.
Format:	Artikel
Sprache:	eng
Schlagworte:	ENVIRONMENTAL SCIENCES Lean NOX reduction NH3 formation NH₃ formation Passive SCR TWC
Online-Zugang:	Volltext
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