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公开(公告)号:EP1674148A2
公开(公告)日:2006-06-28
申请号:EP05028154.2
申请日:2005-12-22
申请人: Cataler Corporation
发明人: Taki, Kenichi c/o Cataler Corporation , Hirai, Akimasa c/o Cataler Corporation , Suzuki, Hiromasa c/o Cataler Corporation
IPC分类号: B01D53/94
CPC分类号: B01J23/63 , B01D53/945 , B01D2255/102 , B01D2255/2042 , B01D2255/2063 , B01D2255/407 , B01D2255/9032 , B01D2255/908 , B01J35/0006 , B01J35/04 , B01J37/0248 , Y02T10/22
摘要: An exhaust gas purifying catalyst comprises a substrate having a through hole serving as a passage for exhaust gas; and a catalyst coating layer formed on an internal surface of the through hole. The catalyst coating layer contains: a component (i): a precious metal; and a component (ii): at least one of a Zr oxide, a Ce oxide and a ZrCe mixed oxide. On an upstream portion of the passage, an oxide equivalent weight of Zr is within a range of 51-100 wt% of an oxide equivalent weight of Zr and Ce contained in the component (ii). On a downstream portion of the passage, the component (ii) includes at least one of a Ce oxide and a ZrCe mixed oxide in which an oxide equivalent weight of Ce is within a range of 58·100 wt% of an oxide equivalent weight of Zr and Ce contained in the ZrCe mixed oxide.
摘要翻译: 一种废气净化催化剂包括:具有用作废气通道的通孔的基板; 以及形成在通孔的内表面上的催化剂涂层。 催化剂涂层含有:组分(i):贵金属; 和组分(ii):Zr氧化物,Ce氧化物和ZrCe混合氧化物中的至少一种。 在通道的上游部分,Zr的氧化物当量在组分(ii)中包含的Zr和Ce的氧化物当量的51-100wt%的范围内。 在通道的下游部分,组分(ii)包含Ce氧化物和ZrCe混合氧化物中的至少一种,其中Ce的氧化物当量在氧化物当量重量的58.100wt% Zr和Ce含在ZrCe混合氧化物中。
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公开(公告)号:EP1674148A3
公开(公告)日:2009-03-04
申请号:EP05028154.2
申请日:2005-12-22
申请人: Cataler Corporation
发明人: Taki, Kenichi c/o Cataler Corporation , Hirai, Akimasa c/o Cataler Corporation , Suzuki, Hiromasa c/o Cataler Corporation
IPC分类号: B01D53/94
CPC分类号: B01J23/63 , B01D53/945 , B01D2255/102 , B01D2255/2042 , B01D2255/2063 , B01D2255/407 , B01D2255/9032 , B01D2255/908 , B01J35/0006 , B01J35/04 , B01J37/0248 , Y02T10/22
摘要: An exhaust gas purifying catalyst comprises a substrate having a through hole serving as a passage for exhaust gas; and a catalyst coating layer formed on an internal surface of the through hole. The catalyst coating layer contains: a component (i): a precious metal; and a component (ii): at least one of a Zr oxide, a Ce oxide and a ZrCe mixed oxide. On an upstream portion of the passage, an oxide equivalent weight of Zr is within a range of 51-100 wt% of an oxide equivalent weight of Zr and Ce contained in the component (ii). On a downstream portion of the passage, the component (ii) includes at least one of a Ce oxide and a ZrCe mixed oxide in which an oxide equivalent weight of Ce is within a range of 58·100 wt% of an oxide equivalent weight of Zr and Ce contained in the ZrCe mixed oxide.
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