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公开(公告)号：EP3466541A1
公开(公告)日：2019-04-10
申请号：EP17802602.7
申请日：2017-05-12
申请人： Cataler Corporation
发明人： TAKESUE, Yuki , MURAKAMI, Kyosuke , ONOE, Ryota
CPC分类号： F01N3/101 , B01D53/944 , B01D53/9468 , B01D53/9472 , B01D2255/1023 , B01D2255/1025 , B01D2255/2092 , B01D2255/407 , B01D2255/9022 , B01D2255/9032 , B01D2255/908 , B01J23/63 , B01J35/0006 , B01J35/04 , B01J37/0234 , B01J37/0244 , F01N2370/02 , F01N2510/0684
摘要： An exhaust gas purification catalyst of the present invention is provided with a base 10 and a catalyst coat layer 30. The catalyst coat layer is provided with Rh and Pd as noble metal catalysts. Herein Rh is disposed in a first-stage upper layer A and a second-stage upper layer C, and Pd is disposed in the first-stage upper layer A and a first-stage lower layer B, and in a second-stage lower layer D. A mass ratio (A Pd /A Rh ) of Pd to Rh, disposed in first-stage upper layer A is 0.5≤(A Pd /A Rh )≤3.
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公开(公告)号：EP3248680B1
公开(公告)日：2020-10-07
申请号：EP16740000.1
申请日：2016-01-08
申请人： Cataler Corporation
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公开(公告)号：EP3248680A1
公开(公告)日：2017-11-29
申请号：EP16740000.1
申请日：2016-01-08
申请人： Cataler Corporation
发明人： ONOE, Ryota , ITO, Tsuyoshi , TAKESUE, Yuki , IKEBE, Masatoshi , KASUYA, Chihiro , MORISHITA, Yuta
CPC分类号： B01D53/94 , B01D53/9454 , B01D2255/1023 , B01D2255/1025 , B01D2255/407 , B01D2255/9032 , B01D2255/905 , B01D2255/908 , B01D2255/9202 , B01D2258/01 , B01J23/63 , B01J35/0006 , B01J35/0026 , B01J35/04 , B01J2523/00 , F01N3/101 , F01N3/28 , F01N2330/60 , Y02T10/22 , B01J2523/31 , B01J2523/3712 , B01J2523/48 , B01J2523/822 , B01J2523/824
摘要： The exhaust gas cleaning catalyst according to the present invention is provided with a cylindrical substrate 10 and a catalyst coat layer 20 formed on the surface of the substrate 10. A ratio of the length L in the cylindrical axis direction of the substrate 10 and the diameter D of a cross section orthogonal to the cylindrical axis direction is denoted by (L/D) ≤ 0.8. The coat density of the catalyst coat layer 20 differs between an upstream side portion 10a that includes the exhaust gas inlet-side end 16 of the substrate 10 and a downstream side portion 10b that includes the exhaust gas outlet-side end 18 of the substrate 10. The coat density A in the upstream side portion 10a is lower than the coat density B in the downstream side portion 10b (A
摘要翻译： 根据本发明的废气净化催化剂设置有圆柱形基底10和形成在基底10的表面上的催化剂涂层20.基底10的圆柱轴线方向上的长度L与基底10的直径 （L / D）≤0.8表示与圆筒轴方向正交的截面的D。 催化剂涂层20的涂层密度在包括基板10的废气入口侧端部16的上游侧部分10a和包括基板10的废气出口侧端部18的下游侧部分10b之间不同 ，上游侧部分10a的涂布密度A低于下游侧部分10b的涂布密度B（A
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公开(公告)号：EP3466541B1
公开(公告)日：2020-09-16
申请号：EP17802602.7
申请日：2017-05-12
申请人： Cataler Corporation
发明人： TAKESUE, Yuki , MURAKAMI, Kyosuke , ONOE, Ryota
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公开(公告)号：EP3513873A1
公开(公告)日：2019-07-24
申请号：EP17853018.4
申请日：2017-09-19
申请人： CATALER CORPORATION
发明人： HOSHINO, Sho , TAKESUE, Yuki , ONOE, Ryota , MIURA, Taku , OTA, Takaya
IPC分类号： B01J23/63 , B01D53/94 , B01J35/04 , F01N3/022 , F01N3/035 , F01N3/10 , F01N3/24 , F01N3/28 , B01J35/00 , B01J23/46 , B01J23/44 , B01J23/10
摘要： An exhaust gas purifying catalyst according to the present invention includes a catalyst layer 40 that is formed inside a partition wall 16 of a base material 10 having a wall flow structure. The catalyst layer 40 has an upstream-side catalyst layer 20 and a downstream-side catalyst layer 30. The upstream-side catalyst layer 20 includes Rh and a Ce-containing oxide, and the downstream-side catalyst layer 30 includes Pd and a Ce-containing oxide. The mass of the catalyst layer 40 per unit volume of the base material 10 is from 105 g/L to 210 g/L, the mass of the upstream-side catalyst layer 20 per unit volume in an upstream-side portion 10A is from 50 g/L to 100 g/L, the mass of the downstream-side catalyst layer 30 per unit volume in a downstream-side portion 10B is from 100 g/L to 150 g/L, the Ce amount per unit volume of the base material 10 is from 14 g/L to 35 g/L, and the Ce amount per unit volume in the upstream-side portion 10A is from 5 g/L to 20 g/L.
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