发明授权
- 专利标题: Catalyst for exhaust gas purification
- 专利标题(中): 催化剂用于排气净化
-
申请号: US10258487申请日: 2002-10-25
-
公开(公告)号: US06797663B2公开(公告)日: 2004-09-28
- 发明人: Tetsuya Watanabe , Osamu Nakayama , Keisuke Tashiro , Kinichi Iwachido , Hiroshi Tanada
- 申请人: Tetsuya Watanabe , Osamu Nakayama , Keisuke Tashiro , Kinichi Iwachido , Hiroshi Tanada
- 优先权: JP2001-050522 20010226
- 主分类号: B01J2906
- IPC分类号: B01J2906
摘要:
An exhaust gas clean-up catalyst having a catalytic layer which contains, as an occluding agent, at least one (potassium and/or the like) chosen from a group consisting of alkaline metals and alkaline earth metals. The catalytic layer consists of a first catalytic layer (20) which contains the occluding agent (potassium and/or the like) and an acid material (30) having a high affinity to the occluding agent, and a second catalytic layer (40) which contains the occluding agent and does not contain the acid material.
公开/授权文献
- US20030139282A1 Catalyst for exhaust gas purification 公开/授权日:2003-07-24