公开(公告)号：US20160288100A1

公开(公告)日：2016-10-06

申请号：US15037829

申请日：2014-11-25

Applicant: CATALER CORPORATION

Inventor： Takashi GOTO ,  Kenichi TAKI ,  Satoshi MATSUEDA

IPC: B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08

CPC classification number: 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

Abstract: 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.

Abstract translation: 本发明的目的是提供一种用于废气净化的催化剂，通过该催化剂可以在从低温到高温的宽温度范围内有效地净化废气。 该目的可以通过使用用于排气净化的催化剂，包含基板，设置在基板上的下层和设置在下层上的上层来实现，其中下层包含：下层催化剂层，其包含第一 具有储氧/释放能力的材料和支撑在第一材料上的第一催化金属; 以及含有具有储氧/释放能力但不含催化金属的第二材料的非催化层; 其中下部催化剂层和非催化剂层以任何顺序层压; 和含有第二催化金属的上部催化剂层。

公开(公告)号：US20160288099A1

公开(公告)日：2016-10-06

申请号：US15037078

申请日：2014-11-11

Applicant: CATALER CORPORATION

Inventor： Takashi GOTO ,  Kenichi TAKI ,  Satoshi MATSUEDA

IPC: B01J23/63 ,  B01D53/94 ,  B01J23/10 ,  B01J35/04 ,  B01J35/00

CPC classification number: B01J23/63 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/65 ,  B01D2255/9022 ,  B01D2255/908 ,  B01D2255/9202 ,  B01J23/10 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  F01N3/2803 ,  Y02T10/22

Abstract: The exhaust gas purifying catalyst presented here includes a substrate and a catalyst coat layer formed on the surface of the substrate. The catalyst coat layer is formed in a laminate structure having two layers, with a first layer being nearer to the surface of the substrate and a second layer being relatively further from this surface. The second layer includes a carrier and a noble metal supported on the carrier. The first layer is a noble metal-free layer that does not contain a noble metal but does contain an OSC material having oxygen storage capacity.

Abstract translation: 这里所示的废气净化催化剂包括在基板的表面上形成的基板和催化剂涂层。 催化剂涂层形成为具有两层的叠层结构，其中第一层更靠近衬底的表面，并且第二层相对于该表面相对更远。 第二层包括载体和负载在载体上的贵金属。 第一层是不含贵金属的贵金属层，但是含有具有储氧能力的OSC材料。