公开(公告)号：EP3275542A1

公开(公告)日：2018-01-31

申请号：EP16772527.4

申请日：2016-03-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Cataler Corporation

发明人： SUZUKI Hiromasa ,  MIURA Masahide ,  SAITO Yoshinori ,  KATOH, Satoru ,  TANABE, Toshitata ,  HIRAO, Tetsuhiro ,  OHASHI, Tatsuya ,  NAITO, Hiroaki ,  ORI, Hirotaka ,  TAKEUCHI, Michihiko ,  NARITA, Keiichi

IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J23/63 ,  B01J35/10 ,  B01J37/08

CPC分类号： B01D53/945 ,  B01D53/94 ,  B01D53/9468 ,  B01D53/9472 ,  B01D2255/10 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2063 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01J23/38 ,  B01J23/56 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/026 ,  B01J35/04 ,  B01J35/10 ,  B01J35/1076 ,  B01J35/108 ,  B01J37/0018 ,  B01J37/0036 ,  B01J37/0219 ,  B01J37/0234 ,  B01J37/08 ,  F01N3/101 ,  F01N3/28 ,  F01N2510/0682 ,  Y02T10/22

摘要： An object of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance even under a high Ga condition. The present invention relates to an exhaust gas purification catalyst comprising a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises catalyst particles, the catalyst coating layer having an upstream region extending by 40 to 60% of the entire length of the substrate from an upstream end of the catalyst in the direction of an exhaust gas flow and a downstream region corresponding to the remainder portion of the catalyst coating layer, the composition of the catalyst particle of the upstream region being different from that of the downstream region. The downstream region in the direction of an exhaust gas flow has a structure where a void is included in a large number, and furthermore high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain percentage or more of the whole volume of voids. Thus, the exhaust gas purification catalyst exhibits enhanced purification performance.

摘要翻译： 本发明的目的在于提供一种即使在高Ga条件下也能够发挥充分的净化性能的废气净化用催化剂。 本发明涉及一种废气净化催化剂，其包含基材和形成在该基材上的催化剂涂层，其中该催化剂涂层包含催化剂颗粒，该催化剂涂层具有延伸全长的40％至60％的上游区域 从排气流方向上的催化剂的上游端和与该催化剂涂层的剩余部分相对应的下游区的基板的上游区域的催化剂颗粒的组成不同于下游 地区。 排气流方向的下游区域具有大量含有空隙的结构，并且纵横比为5以上的高纵横比的孔占整体的一定比例以上 空隙体积。 因此，废气净化催化剂表现出提高的净化性能。

公开(公告)号：EP2045010B1

公开(公告)日：2011-09-21

申请号：EP07744976.7

申请日：2007-06-05

申请人： Cataler Corporation ,  Toyota Jidosha Kabushiki Kaisha

发明人： TAKEUCHI, Michihiko ,  ORI, Hirotaka ,  YOSHIDA, Takeru ,  ISHIBASHI, Kazunobu ,  HACHISUKA, Ichiro

IPC分类号： B01J23/63 ,  B01D53/94 ,  B01J35/10 ,  F01N3/10

CPC分类号： B01J37/0234 ,  B01D53/945 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1026 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/9022 ,  B01D2255/908 ,  B01J23/63 ,  B01J37/0244 ,  F01N2510/0682 ,  F01N2570/24 ,  Y02T10/22

摘要： Disclosed is an exhaust gas purifying catalyst wherein a catalyst coat layer composed of at least two layers including an upper layer and a lower layer is formed on a base. The upper layer contains more noble metal than the lower layer per 1 L of the base, and the lower layer contains more oxygen storage/release material than the upper layer per 1 L of the base. This exhaust gas purifying catalyst exhibits more excellent H2S purifying performance than conventional catalysts, while maintaining purifying performance for other exhaust gases such as NOx.

摘要翻译： 公开了一种废气净化催化剂，其中在基底上形成由至少两层包括上层和下层的催化剂涂层组成。 上层每1L的基底含有比下层多的贵金属，下层每1L的基底含有比上层多的氧吸藏材料。 这种废气净化催化剂显示出比常规催化剂更优异的H 2 S净化性能，同时保持其它废气（例如NO X）的净化性能。

公开(公告)号：EP2050496A1

公开(公告)日：2009-04-22

申请号：EP07851055.9

申请日：2007-12-21

申请人： Cataler Corporation ,  Toyota Jidosha Kabushiki Kaisha

发明人： TAKEUCHI, Michihiko ,  ORI, Hirotaka ,  HACHISUKA, Ichiro ,  YAMATO, Masanori

IPC分类号： B01J23/63 ,  B01D53/86 ,  B01J35/10 ,  F01N3/08 ,  F01N3/10

CPC分类号： F01N3/10 ,  B01D53/94 ,  B01D2255/102 ,  B01D2255/206 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/902 ,  B01D2255/908 ,  B01D2255/92 ,  B01D2257/304 ,  B01J23/40 ,  B01J23/63 ,  B01J23/894 ,  B01J35/006 ,  B01J35/10 ,  B01J35/1014 ,  B01J35/1019 ,  B01J37/0234 ,  F01N2570/04

摘要： Decreasing hydrogen sulfide emission without using nickel is made possible. An exhaust gas-purifying catalyst (1) includes a support substrate (2), a catalyst support layer (3) supported by the support substrate (2) and including porous carrier (31), and a precious metal (4) supported by the porous carrier (31). A mean diameter of the precious metal (4) is 5 nm or larger.

摘要翻译： 不使用镍可以减少硫化氢排放。 本发明的废气净化用催化剂（1）具有支承基板（2），由该支承基板（2）支承且具有多孔质载体（31）的催化剂载体层（3），以及由该载体 多孔载体（31）。 贵金属（4）的平均直径为5nm或更大。

公开(公告)号：EP3581269A1

公开(公告)日：2019-12-18

申请号：EP18783833.9

申请日：2018-04-09

申请人： Cataler Corporation

发明人： OISHI, Shunsuke ,  KAWAMURA, Shogo ,  NAGATA, Takahiro ,  ORI, Hirotaka ,  ITOU, Minoru

IPC分类号： B01J27/053 ,  B01D53/94 ,  B01J37/02 ,  F01N3/10 ,  C01F11/46 ,  B01J23/58 ,  B01J35/00

摘要： The present invention provides an exhaust gas purification catalyst including an alkaline earth metal supported in a highly dispersed state on a porous carrier. A catalyst layer of the exhaust gas purification catalyst provided by the invention has an alkaline earth metal-supporting region including a porous carrier, a catalyst metal belonging to the platinum group, and a sulfate of at least one type of alkali earth metal supported on the porous carrier. In a cross-section of this region, a Pearson correlation coefficient R Ae/M is at least 0.5 as calculated using α and β for each pixel obtained by carrying out area analysis by FE-EPMA under conditions of pixel size of 0.34 µm × 0.34 µm, and measured pixel number 256 × 256, and by measuring the characteristic X-ray intensity (α: cps) of the alkaline earth metal element (Ae) and the characteristic X-ray intensity (β: cps) of the main constituent element of the inorganic compound constituting the porous carrier for each pixel.