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: US10452206申请日: 2003-06-02
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公开(公告)号: US06825145B2公开(公告)日: 2004-11-30
- 发明人: Hiroshi Tanada , Osamu Nakayama , Keisuke Tashiro , Kinichi Iwachido , Tetsuya Watanabe , Kazuo Koga
- 申请人: Hiroshi Tanada , Osamu Nakayama , Keisuke Tashiro , Kinichi Iwachido , Tetsuya Watanabe , Kazuo Koga
- 优先权: JP2000-216313 20000717
- 主分类号: B01J2906
- IPC分类号: B01J2906
摘要:
The present invention provides an exhaust gas purifying catalyst that is capable of substantially reducing the degree of deterioration in an exhaust gas purifying capability, which results from dissipation of an absorbent agent. Accordingly, an exhaust gas purifying catalyst, which includes a carrier and a catalyst layer, and to which at least one material selected from a group of alkali metals and alkali earth metals is added as an absorbent agent, is characterized in that acid material with a high affinity with respect to the absorbent agent is mixed in the catalyst layer so as to fix the absorbent agent, and an inhibiting layer is formed between the catalyst layer and the carrier so as to inhibit the movement of the absorbent agent toward the carrier.
公开/授权文献
- US20030211939A1 Exhaust gas purifying catalyst 公开/授权日:2003-11-13