DEVICE FOR CLEANING EXHAUST GAS

PROBLEM TO BE SOLVED: To provide a device for cleaning an exhaust gas which reduces NOx by CO in the exhaust gas without containing a HC in the exhaust gas and without any feed means of a reducing agent excluding by a means of the exhaust gas. SOLUTION: In the device for cleaning the exhaust gas, an...

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Bibliographische Detailangaben
Hauptverfasser:	IIZUKA HIDEHIRO, KANAE MASAHITO, SATO DAIKI, NAGAYAMA TOSHIAKI
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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a device for cleaning an exhaust gas which reduces NOx by CO in the exhaust gas without containing a HC in the exhaust gas and without any feed means of a reducing agent excluding by a means of the exhaust gas. SOLUTION: In the device for cleaning the exhaust gas, an NOx reduction catalyst, which is a perovskite oxide of which the structural formula is expressed by (LaxCey)BO3, (wherein, B is elements selected by one or more from among Co, Fe and Mn), is used, and the NOx reduction catalyst has an oxygen moving amount at 300°C of 150 μmol/g or more. Further, an NOx cleaning ratio is enhanced by containing one or more metals selected from among Au, Co, Fe, Pd, Pt, Rh and Ir. COPYRIGHT: (C)2010,JPO&INPIT