发明授权
- 专利标题: Exhaust gas purifying catalyst
- 专利标题(中): 废气净化催化剂
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申请号: US09642366申请日: 2000-08-21
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公开(公告)号: US06537946B1公开(公告)日: 2003-03-25
- 发明人: Hiroshi Tanada , Osamu Nakayama , Keisuke Tashiro , Kinichi Iwachido , Tetsuya Watanabe
- 申请人: Hiroshi Tanada , Osamu Nakayama , Keisuke Tashiro , Kinichi Iwachido , Tetsuya Watanabe
- 优先权: JP11-234359 19990820; JP11-370357 19991227; JP11-370358 19991227
- 主分类号: B01J2302
- IPC分类号: B01J2302
摘要:
In an exhaust gas purifying catalyst, an acid material with a high affinity with respect to an absorbing agent is dispersed and mixed in a catalyst layer, to which the absorbing agent is added, or a layer of the acid material is formed inside the catalyst layer in order to prevent the absorbing agent from moving from the catalyst layer into the carrier. This reduces the permeation of the absorbing agent added to the catalyst layer into a carrier, the evaporation and splash of the absorbing agent from the catalyst, and the deterioration in the durability and the exhaust gas purifying performance of the catalyst.