CATALYST FOR EXHAUST GAS PURIFICATION

Provided is an exhaust gas-purifying catalyst whose emission of H 2 S being suppressed while having a satisfactory exhaust gas purification performance even without large amount of Ni. The exhaust gas-purifying catalyst (1) includes a substrate provided with one or more through-holes through which e...

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Bibliographische Detailangaben
Hauptverfasser:	KANAZAWA, TAKAAKI, ITOU MINORU, TAKEUCHI, MICHIHIKO, KATOH, SATORU, KAMADA, MASAYA, TAKAHASHI, NAOKI, SUZUKI, TADASHI
Format:	Patent
Sprache:	eng ; fre ; ger
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:	Provided is an exhaust gas-purifying catalyst whose emission of H 2 S being suppressed while having a satisfactory exhaust gas purification performance even without large amount of Ni. The exhaust gas-purifying catalyst (1) includes a substrate provided with one or more through-holes through which exhaust gas flows, and a catalyst layer which is supported by the substrate and contains precious metals and an oxygen storage material. The exhaust gas-purifying catalyst contains a first part (100) to which the exhaust gas is supplied, and a second part (200) to which the exhaust gas having passed through the first part (100) is supplied and is smaller in the content of the oxygen storage material per unit volume than that of the first part (100).