发明授权
- 专利标题: Exhaust gas purifying catalyst and process for purifying exhaust gas
- 专利标题(中): 废气净化催化剂和废气净化工艺
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申请号: US10824847申请日: 2004-04-15
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公开(公告)号: US07265073B2公开(公告)日: 2007-09-04
- 发明人: Tatsuya Yoshikawa
- 申请人: Tatsuya Yoshikawa
- 申请人地址: JP Osaka US MI Auburn Hills
- 专利权人: ICT Co., Ltd.,International Catalyst Technology, Inc.
- 当前专利权人: ICT Co., Ltd.,International Catalyst Technology, Inc.
- 当前专利权人地址: JP Osaka US MI Auburn Hills
- 代理机构: Occhiuti Rohlicek & Tsao LLP
- 优先权: JP2003-112993 20030417
- 主分类号: B01J29/068
- IPC分类号: B01J29/068 ; B01J29/22 ; B01J29/44 ; B01J29/67 ; B01J29/12
摘要:
An exhaust gas purifying catalyst formed by having a first rhodium-containing catalyst layer, a second zeolite-containing catalyst layer, and a third palladium-containing catalyst layer superposed sequentially on a carrier, and a process for purifying the exhaust gas from an internal combustion engine by using the catalyst. A catalyst possessing durability and excelling in the ability to adsorb hydrocarbon, the ability to purify, and the three-way performance is provided.
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