METHOD FOR DESULFURIZING NITROGEN OXIDE STORAGE CATALYST

The invention relates to a method for desulfurizing a nitrogen oxide storage catalyst (14) of an exhaust system (10) of an internal combustion engine, the exhaust system comprising the nitrogen oxidestorage catalyst (14) and at least one SCR catalyst (18) located downstream of the nitrogen oxide sto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SCHWEITZER NATHALIE J, KEPPELER BERTHOLD, WOOG THORSTEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for desulfurizing a nitrogen oxide storage catalyst (14) of an exhaust system (10) of an internal combustion engine, the exhaust system comprising the nitrogen oxidestorage catalyst (14) and at least one SCR catalyst (18) located downstream of the nitrogen oxide storage catalyst (14). According to said method, a desulfurization strategy, which forms the basis forthe desulfurization of the nitrogen oxide storage catalyst (14), is adapted to the ageing process of the nitrogen oxide storage catalyst (14). 本发明涉及一种用于内燃机排气设备(10)的氮氧化物储存催化转化器(14)的脱硫方法，该排气设备包括该氮氧化物储存催化转化器(14)和至少一个布置在该氮氧化物储存催化转化器(14)下游的SCR催化转化器(18)，其中，该氮氧化物储存催化转化器(14)脱硫所依据的脱硫策略匹配于该氮氧化物储存催化转化器(14)的老化。