发明授权
- 专利标题： Catalyst for purifying exhaust gas from internal combustion engine and purifying method thereof
- 专利标题（中）： 用于净化内燃机废气的催化剂及其净化方法
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申请号： US958673申请日： 1997-10-27
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公开(公告)号： US5968870A公开(公告)日： 1999-10-19
- 发明人: Hidehiro Iizuka , Ryouta Doi , Hiroshi Hanaoka , Toshio Ogawa , Osamu Kuroda , Hisao Yamashita , Shigeru Azuhata , Yuichi Kitahara , Norihiro Shinotsuka
- 申请人： Hidehiro Iizuka , Ryouta Doi , Hiroshi Hanaoka , Toshio Ogawa , Osamu Kuroda , Hisao Yamashita , Shigeru Azuhata , Yuichi Kitahara , Norihiro Shinotsuka
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX8-283672 19961025
- 主分类号： B01D53/56
- IPC分类号： B01D53/56 ; B01D53/86 ; B01D53/94 ; B01J23/10 ; B01J23/58 ; B01J23/63 ; B01J23/54
摘要：
A catalyst being formed of a porous supporter supporting alkali metals, Ti and a noble metal, or further supporting at least one of rare earth metal and magnesium, being disposed in a flow passage of an internal combustion engine, and being used to purify NOx contained in the exhaust gas. The above catalyst has NOx resistance to exhaust gas burnt with a rich condition and with a lean condition and a high resistivity to poisoning by SOx.
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