基本信息:
- 专利标题： EXHAUST GAS PURIFICATION CATALYST
- 申请号：EP16752471 申请日：2016-02-16
- 公开(公告)号：EP3254757A4 公开(公告)日：2018-01-10
- 发明人： ONOE RYOTA , SAKAGAMI SHINGO , NOMURA YASUTAKA , MORISHITA YUTA , KURIYAMA JUNJI , SEKINE HIROSHI , OCHIAI DAISUKE , MIYOSHI NAOTO , TAKEUCHI MASAHIKO , SATO AKEMI
- 申请人： CATALER CORP , TOYOTA MOTOR CO LTD
- 专利权人： CATALER CORP,TOYOTA MOTOR CO LTD
- 当前专利权人： CATALER CORP,TOYOTA MOTOR CO LTD
- 优先权： JP2015028795 2015-02-17
- 主分类号： B01J35/04
- IPC分类号： B01J35/04 ; B01D53/94 ; B01J23/63 ; F01N3/022 ; F01N3/035 ; F01N3/08 ; F01N3/10 ; F01N3/24 ; F01N3/28
摘要：
Provided is a wall-flow-type exhaust gas purification catalyst with an oxygen storage material that has an increased OSC and exhibits its OSC without a compromise. This invention provides an exhaust gas purification catalyst 10 comprising a wall-flow-type substrate, a first catalytic layer 261 and a second catalytic layer 262. The first catalytic layer 261 is provided to an internal portion of a partition wall 26 in contact with an entrance cell 24. The second catalytic layer 262 is provided to an internal portion of a partition wall 26 in contact with an exit cell 25. Each of the first and second catalytic layers 261 and 262 comprises an oxygen storage material. The ratio (D 1 /D 2 ) of the coating density D 1 of the first catalytic layer 261 to the coating density D 2 of the second catalytic layer 262 is 1.1 to 1.8.
IPC结构图谱:
| B | 作业；运输 |
| --B01 | 一般的物理或化学的方法或装置 |
| ----B01J | 化学或物理方法，例如，催化作用、胶体化学；其有关设备 |
| ------B01J35/00 | 一般以其形态或物理性质为特征的催化剂 |
| --------B01J35/02 | .固体 |
| ----------B01J35/04 | ..小孔结构、筛、栅、蜂窝状物 |