CATALYST FOR CLEANING EXHAUST GAS AND CATALYST LAYER FOR CLEANING EXHAUST GAS

PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas and a catalyst layer for cleaning exhaust gas of which the performance of cleaning exhaust gas can be improved by restraining Rh (rhodium) from being agglomerated on a carrier. SOLUTION: The catalyst for cleaning exhaust gas includ...

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Hauptverfasser: ONODERA TAKAYUKI, IDE MASANORI, OHARA HIROAKI, WATANABE TETSUYA, IWACHIDO KINICHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas and a catalyst layer for cleaning exhaust gas of which the performance of cleaning exhaust gas can be improved by restraining Rh (rhodium) from being agglomerated on a carrier. SOLUTION: The catalyst for cleaning exhaust gas includes the catalyst layer 11 formed by depositing Rh on the carrier 10 by using a supporting material having zirconium oxide as a principal component. The ratio of the weight of the catalyst layer 11 to that of Rh is set within 250-500. The catalyst layer 11 is formed on the carrier 10, in the concrete, by mixing Rh, the supporting material, a binder and an additive to prepare slurry, immersing the carrier 10 in the prepared slurry, drying the slurry-deposited carrier and firing the resulting carrier. COPYRIGHT: (C)2010,JPO&INPIT