B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/63 (2006.01) B01D 53/94 (2006.01) B01J 37/08 (2006.01) F01N 3/10 (2006.01)
Patent
CA 2581339
A catalyst for exhaust gas purification is provided that can not only efficiently and simultaneously purify nitrogen oxides, hydrocarbons and carbon monoxide in exhaust gas emitted from internal combustion engines such as those of automobiles even at lower temperatures, but also exhibits higher durability. The coexistence of a complex oxide that includes a rare earth element and palladium, a rare earth oxide, and a perovskite-type complex oxide that is expressed by the general formula LnAlO3, in which Ln is a rare earth element, may provide a catalyst that not only efficiently purifies the exhaust gas emitted from internal combustion engines such as those of automobiles even at lower temperatures, but also exhibits higher durability.
L~invention porte sur un catalyseur pour épuration de gaz d~échappement réalisant non seulement une épuration efficace simultanée, même à basse température, par rapport aux oxydes d~azote, aux hydrocarbures et au monoxyde de carbone contenus dans le gaz d~échappement refoulé par les moteurs à combustion interne des automobiles, etc. mais présentant également une excellente durabilité. Ce catalyseur pour épuration de gaz d~échappement réalisant non seulement une épuration efficace simultanée, même à basse température, par rapport au gaz d~échappement des automobiles, etc. mais présentant également une excellente durabilité peut être le résultat d~une combinaison d~un oxyde composite contenant un élément de terre rare et du palladium, un oxyde de terre rare et un composite de perovskite de la formule générale LnAlO3 (où Ln est un élément de terre rare).
Furukawa Atsushi
Kiguchi Kazunori
Matsuo Yuichi
Suzuki Norihiko
Honda Motor Co. Ltd.
Smart & Biggar
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