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公开(公告)号:EP2521614B1
公开(公告)日:2017-02-15
申请号:EP10808946.7
申请日:2010-12-27
发明人: SUNADA, Tomoaki , UENO, Hideaki , AOKI, Yuki , YOSHIDA, Takeru , NAKAHARA, Masahiro , KAWAI, Masaaki , SAKAGAMI, Shingo
CPC分类号: B01J35/002 , B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0009 , B01J37/0244 , B01J37/0248 , B01J37/031 , B01J2523/00 , Y02T10/22 , B01J2523/31 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/3718 , B01J2523/36
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公开(公告)号:EP2521614A2
公开(公告)日:2012-11-14
申请号:EP10808946.7
申请日:2010-12-27
发明人: SUNADA, Tomoaki , UENO, Hideaki , AOKI, Yuki , YOSHIDA, Takeru , NAKAHARA, Masahiro , KAWAI, Masaaki , SAKAGAMI, Shingo
CPC分类号: B01J35/002 , B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/9022 , B01J23/002 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0009 , B01J37/0244 , B01J37/0248 , B01J37/031 , B01J2523/00 , Y02T10/22 , B01J2523/31 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/3718 , B01J2523/36
摘要: A catalyst for purifying exhaust gases includes a substrate, and a catalytic layer. The catalytic layer includes a lower catalytic layer, a first upper catalytic layer, and a second upper catalytic layer. The lower catalytic layer being loaded with Pd and/or Pt is formed on the substrate. The first upper catalytic layer being loaded with Pd covers an upstream side of the lower catalytic layer, and exhibits a concentration of loaded Pd that falls in a range of from 4.5 to 12% by mass when the entirety of the first upper catalytic layer is taken as 100% by mass. The second upper catalytic layer being loaded with Rh covers a downstream side of the lower catalytic layer.
摘要翻译: 用于净化废气的催化剂包括基材和催化剂层。 催化层包括下催化层,第一上催化层和第二上催化层。 在基板上形成负载Pd和/或Pt的下层催化剂层。 负载有Pd的第一上部催化剂层覆盖下部催化剂层的上游侧,并且当采用全部第一上部催化剂层时,载体Pd的浓度为4.5〜12质量% 为100质量%。 负载有Rh的第二上部催化剂层覆盖下部催化剂层的下游侧。
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