CATALYST AND METHOD FOR REMOVING NITROGEN OXIDE IN EXHAUST GAS FROM DIESEL ENGINE BY USING UNBURNT CARBON

PROBLEM TO BE SOLVED: To provide a catalyst and a method for catalytically deoxidizing NOx in exhaust gas from a diesel engine efficiently even in the presence of sulfur oxides by using unburnt carbon contained in the exhaust gas as a deoxidizing agent and catalytically removing the unburnt carbon a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SATO NAOHIRO, ONO HIROSHI, OYA NAOKI, MATSUZONO YOSHIAKI, YAMAGUCHI TAKUMI, NAKATSUJI TADAO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY 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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a catalyst and a method for catalytically deoxidizing NOx in exhaust gas from a diesel engine efficiently even in the presence of sulfur oxides by using unburnt carbon contained in the exhaust gas as a deoxidizing agent and catalytically removing the unburnt carbon and to provide a catalytic diesel particulate filter obtained by depositing the catalyst on a diesel particulate filter. SOLUTION: The catalyst for catalytically deoxidizing NOx in the exhaust gas by using unburnt carbon contained in the exhaust gas from the diesel engine as the deoxidizing agent and oxidizing/removing the unburnt carbon contains alkali metal titanate as a catalyst component, preferably, contains (A) alkali metal titanate as the catalyst component and (B) at least one selected from chlorides, carbonates, sulfates, silicates and aluminates of alkali metals and alkaline earth metals as a promotor component. COPYRIGHT: (C)2009,JPO&INPIT