发明名称 |
CATALYST FOR PURIFYING EXHAUST GAS |
摘要 |
<p>In the present invention, it is an assignment to optimize a loading density of noble metal on catalyst.
Pt is loaded in such an amount that a loading amount per 1 liter of a support substrate exceeds 0. 75 g on an exhaust-gas upstream side of a coating layer, and a loading density of Rh in the coating layer is made so that it becomes higher on an exhaust-gas downstream side than on the exhaust-gas upstream side. The purifying performance after warming up improves by loading Rh with high density on the exhaust-gas downstream side that is likely to become rich atmosphere.</p> |
申请公布号 |
EP2047903(B1) |
申请公布日期 |
2015.10.28 |
申请号 |
EP20070791095 |
申请日期 |
2007.07.20 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
YAMATO, MASANORI;KUNO, OJI |
分类号 |
B01J23/63;B01D53/94;B01J23/42;B01J23/46;B01J35/00;B01J37/02 |
主分类号 |
B01J23/63 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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