JP5003917B2 - 排気浄化触媒及び排気浄化装置 - Google Patents
排気浄化触媒及び排気浄化装置 Download PDFInfo
- Publication number
- JP5003917B2 JP5003917B2 JP2008327858A JP2008327858A JP5003917B2 JP 5003917 B2 JP5003917 B2 JP 5003917B2 JP 2008327858 A JP2008327858 A JP 2008327858A JP 2008327858 A JP2008327858 A JP 2008327858A JP 5003917 B2 JP5003917 B2 JP 5003917B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- exhaust
- exhaust purification
- layer
- nox
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
19 排気浄化装置
20 NOx吸蔵還元型排気浄化触媒(NOxトラップ触媒)
21 三元触媒
22 メタル担体
23 触媒層
24a 平板
24b 波板
25 セル
26 表層
27 内層
28 セラミック担体
29 触媒層
30 表層
31 内層
Claims (4)
- プラチナ(Pt)及びセリア(CeO2)を含む表層と、パラジウム(Pd)及びマグネシア(MgO)を含む内層とからなる触媒層が担体に担持され、この表層及び内層には、さらにカリウム(K)が含まれていることを特徴とする排気浄化触媒。
- 前記表層及び内層にゼオライトが添加されていることを特徴とする請求項1に記載の排気浄化触媒。
- 前記表層及び内層にチタニア(TiO2)が添加されていることを特徴とする請求項1又は2に記載の排気浄化触媒。
- 内燃機関の排気通路に設けられ、請求項1〜3のいずれか一項に記載の排気浄化触媒を備えたことを特徴とする排気浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008327858A JP5003917B2 (ja) | 2008-12-24 | 2008-12-24 | 排気浄化触媒及び排気浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008327858A JP5003917B2 (ja) | 2008-12-24 | 2008-12-24 | 排気浄化触媒及び排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010149014A JP2010149014A (ja) | 2010-07-08 |
JP5003917B2 true JP5003917B2 (ja) | 2012-08-22 |
Family
ID=42568720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008327858A Expired - Fee Related JP5003917B2 (ja) | 2008-12-24 | 2008-12-24 | 排気浄化触媒及び排気浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5003917B2 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3358766B2 (ja) * | 1994-12-16 | 2002-12-24 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
US7438866B2 (en) * | 2001-02-02 | 2008-10-21 | Hitachi, Ltd. | Emission gas purification catalyst and internal combustion engine provided with the catalyst |
JP4626115B2 (ja) * | 2001-09-25 | 2011-02-02 | マツダ株式会社 | 排気ガス浄化用触媒、及び排気ガス浄化用触媒の製造方法 |
JP4438957B2 (ja) * | 2005-06-13 | 2010-03-24 | 三菱自動車工業株式会社 | 内燃機関の排気浄化装置 |
-
2008
- 2008-12-24 JP JP2008327858A patent/JP5003917B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2010149014A (ja) | 2010-07-08 |
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