公开(公告)号：EP3072587A1

公开(公告)日：2016-09-28

申请号：EP14863486.8

申请日：2014-11-25

申请人： Cataler Corporation

发明人： GOTO Takashi ,  TAKI Kenichi ,  MATSUEDA Satoshi

IPC分类号： B01J23/63 ,  B01D53/94 ,  B01J35/04 ,  B01J37/02

CPC分类号： B01J23/63 ,  B01D53/9468 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/407 ,  B01D2255/908 ,  B01J23/002 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0248 ,  B01J37/08

摘要： An object of the present invention is to provide a catalyst for exhaust gas purification, by which exhaust gas can be efficiently purified within a wide temperature range from low to high temperatures. This object can be achieved by using a catalyst for exhaust gas purification, containing a substrate, a lower layer disposed on the substrate, and an upper layer disposed on the lower layer, wherein the lower layer contains: a lower catalytic layer that contains a first material having oxygen storage/release capacity and a first catalytic metal supported on the first material; and a non-catalytic layer that contains a second material having oxygen storage/release capacity but does not contain catalytic metal; in which the lower catalytic layer and the non-catalytic layer are laminated in any order; and an upper catalytic layer that contains a second catalytic metal.

摘要翻译： 本发明的目的在于提供一种废气净化用催化剂，能够在从低温到高温的广泛的温度范围内有效地净化废气。 该目的可以通过使用用于废气净化的催化剂来实现，该催化剂包含基底，设置在基底上的下层和设置在下层上的上层，其中下层包含：下催化层，其包含第一 具有氧储存/释放能力的材料以及负载在第一材料上的第一催化金属; 以及包含具有氧储存/释放能力但不含催化金属的第二材料的非催化层; 其中下催化层和非催化层以任何顺序层压; 和含有第二催化金属的上部催化层。