B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/63 (2006.01) B01D 53/94 (2006.01) B01J 35/04 (2006.01) B01J 35/10 (2006.01) F01N 3/10 (2006.01)
Patent
CA 2735249
The exhaust gas purification catalyst contains at least a precious metal that is coated with a lanthanum-containing alumina. Thus it is possible to provide an exhaust gas purification catalyst with both improved heat resistance and limited solid solution of the precious metal into the alumina by the precious metal being coated with the alumina, and to provide a method for efficiently purifying an exhaust gas from an internal combustion engine using said catalyst.
L'invention concerne un catalyseur de purification de gaz d'échappement qui contient au moins un métal précieux revêtu d'une couche d'alumine contenant du lanthane. L'invention permet d'obtenir un catalyseur de purification de gaz d'échappement présentant à la fois une résistance supérieure à la chaleur et qui permet de limiter la solution solide du métal précieux dans l'alumine par le revêtement de l'alumine sur le métal précieux; et concerne aussi un procédé utilisant ce catalyseur pour purifier efficacement des gaz d'échappement provenant d'un moteur à combustion interne.
Goto Hideki
Ikeda Masanori
Ikegami Takahiro
Mikita Kosuke
Ogino Yuji
Blake Cassels & Graydon Llp
Ict Co. Ltd.
International Catalyst Technology Inc.
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