EXHAUST CLEANING CATALYST FOR USE IN INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To provide an exhaust cleaning catalyst for use in an internal combustion engine having a high heat resistance and capable of maintaining its cleaning capacity at a high level. SOLUTION: The exhaust cleaning catalyst includes a catalyst layer formed by applying an oxygen absorb...

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Bibliographische Detailangaben
Hauptverfasser:	TANABE TAKESHI, TANADA HIROSHI
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 an exhaust cleaning catalyst for use in an internal combustion engine having a high heat resistance and capable of maintaining its cleaning capacity at a high level. SOLUTION: The exhaust cleaning catalyst includes a catalyst layer formed by applying an oxygen absorbent (24) comprising ceria onto the surface of a substrate (22) made from a material having a high specific surface area to be membranous, and subsequently overlaying particles (20) supporting a noble metal (26) on the surface of the membrane of the oxygen absorbent. COPYRIGHT: (C)2010,JPO&INPIT