Stickoxidemissionsmindernde Abgasreinigungsanlage

Exhaust gas purifying arrangement consists of a first catalytic unit (3) connected to a third catalytic unit (2), which intermediately stores nitrogen oxides contained in a lean exhaust gas composition and which releases intermediately stored nitrogen oxides with a rich exhaust gas composition. An e...

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Bibliographische Detailangaben
Hauptverfasser:	VOIGTLAENDER, DIRK, KRUTZSCH, BERND, KONRAD, BRIGITTE
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Exhaust gas purifying arrangement consists of a first catalytic unit (3) connected to a third catalytic unit (2), which intermediately stores nitrogen oxides contained in a lean exhaust gas composition and which releases intermediately stored nitrogen oxides with a rich exhaust gas composition. An exhaust gas purifying arrangement for a vehicle combustion engine comprises a first catalytic unit (3) which produces ammonia from corresponding exhaust gas components with a rich exhaust gas composition, and a second catalytic unit (4) connected to the first and intermediately storing ammonia produced from the first unit and subjecting the nitrogen oxides to a reduction reaction using the intermediately stored ammonia as reductant. The first catalytic unit (3) is connected to a third catalytic unit (2), which intermediately stores nitrogen oxides contained in the lean exhaust gas composition and which releases intermediately stored nitrogen oxides with rich exhaust gas composition.