JPH02142623U - - Google Patents
Info
- Publication number
- JPH02142623U JPH02142623U JP5255989U JP5255989U JPH02142623U JP H02142623 U JPH02142623 U JP H02142623U JP 5255989 U JP5255989 U JP 5255989U JP 5255989 U JP5255989 U JP 5255989U JP H02142623 U JPH02142623 U JP H02142623U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- catalyst
- supported
- gas inlet
- gas outlet
- 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.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 claims description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 7
- 239000010948 rhodium Substances 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Catalysts (AREA)
Description
第１図ａはこの考案の一例の触媒の斜視図、第
１図ｂは第１図ａの触媒の排ガス流入口側の部分
におけるＡ部分の拡大正面図、第１図ｃは第１図
ａの触媒の排ガス流出口側の部分におけるＡ部分
に対応する部分の拡大正面図、第２図は白金とロ
ジウムを担持する排ガス浄化用モノリス触媒の昇
温特性図、第３図は触媒Ａ〜Ｄおよび〜の貴
金属構成図である。
１……排ガス流入口側の部分、２……排ガス流
出口側の部分、３……ハニカム担体。
Figure 1a is a perspective view of a catalyst according to an example of this invention, Figure 1b is an enlarged front view of part A on the exhaust gas inlet side of the catalyst in Figure 1a, and Figure 1c is the same as Figure 1a. Fig. 2 is a temperature rise characteristic diagram of a monolith catalyst for exhaust gas purification supporting platinum and rhodium, Fig. 3 is a diagram showing catalysts A to D. It is a noble metal configuration diagram of and ~. 1... Portion on the exhaust gas inlet side, 2... Portion on the exhaust gas outlet side, 3... Honeycomb carrier.
Claims (1)
を有する貫通孔が多数形成されたモノリス触媒担
体と、該貫通孔を形成する壁面に担持された触媒
層とからなる排ガス浄化用モノリス触媒において
、 前記触媒層の触媒貴金属として、排ガス流入口
からモノリス触媒担体の全長の１／１０〜２／５
の長さの範囲の排ガス流入口側の部分においては
、白金（Ｐｔ）とロジウム（Ｒｈ）が一部または
全部共存するように担持されており、排ガス流出
口からモノリス触媒担体の全長の３／５〜９／１
０の長さの範囲の排ガス流出口側の部分において
は、白金とロジウムが分離するよう担持されてい
る構成となつていることを特徴とする排ガス浄化
用モノリス触媒。[Claim for Utility Model Registration] Consisting of a monolithic catalyst carrier in which a large number of through holes are formed, each having an exhaust gas inlet at one end and an exhaust gas outlet at the other end, and a catalyst layer supported on the wall surface forming the through holes. In the monolith catalyst for exhaust gas purification, the catalytic noble metal of the catalyst layer is 1/10 to 2/5 of the total length of the monolith catalyst carrier from the exhaust gas inlet.
Platinum (Pt) and rhodium (Rh) are partially or completely supported on the exhaust gas inlet side in the range of length, and 3/3 of the total length of the monolithic catalyst carrier from the exhaust gas outlet to 5-9/1
1. A monolithic catalyst for exhaust gas purification, characterized in that platinum and rhodium are supported so as to be separated in a portion on the exhaust gas outlet side within a length range of 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5255989U JPH02142623U (en) | 1989-05-09 | 1989-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5255989U JPH02142623U (en) | 1989-05-09 | 1989-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02142623U true JPH02142623U (en) | 1990-12-04 |
Family
ID=31572959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5255989U Pending JPH02142623U (en) | 1989-05-09 | 1989-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02142623U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057067A1 (en) * | 2004-11-25 | 2006-06-01 | Cataler Corporation | Catalyst for exhaust gas purification |
| WO2011081219A3 (en) * | 2010-01-04 | 2012-04-26 | Toyota Jidosha Kabushiki Kaisha | Catalyst for converting exhaust gases |
| CN103182305A (en) * | 2011-12-27 | 2013-07-03 | 比亚迪股份有限公司 | Three-way catalyst and preparation method for same |
| WO2019163446A1 (en) * | 2018-02-21 | 2019-08-29 | 株式会社キャタラー | Exhaust gas purification catalyst device |
-
1989
- 1989-05-09 JP JP5255989U patent/JPH02142623U/ja active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057067A1 (en) * | 2004-11-25 | 2006-06-01 | Cataler Corporation | Catalyst for exhaust gas purification |
| JPWO2006057067A1 (en) * | 2004-11-25 | 2008-06-05 | 株式会社キャタラー | Exhaust gas purification catalyst |
| WO2011081219A3 (en) * | 2010-01-04 | 2012-04-26 | Toyota Jidosha Kabushiki Kaisha | Catalyst for converting exhaust gases |
| CN103182305A (en) * | 2011-12-27 | 2013-07-03 | 比亚迪股份有限公司 | Three-way catalyst and preparation method for same |
| WO2019163446A1 (en) * | 2018-02-21 | 2019-08-29 | 株式会社キャタラー | Exhaust gas purification catalyst device |
| JPWO2019163446A1 (en) * | 2018-02-21 | 2021-01-07 | 株式会社キャタラー | Exhaust gas purification catalyst device |
| US11633724B2 (en) | 2018-02-21 | 2023-04-25 | Cataler Corporation | Methods for exhaust gas purification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0169626U (en) | ||
| JPH06182220A (en) | Exhaust gas purification metal carrier | |
| JPS6439824U (en) | ||
| JPS63193532U (en) | ||
| JPS6257721U (en) | ||
| JPH01124320U (en) | ||
| JP2600192B2 (en) | Exhaust gas purification converter | |
| JPH02105517U (en) | ||
| JPS63168032U (en) | ||
| JPH01137732U (en) | ||
| JPH01122837U (en) | ||
| JPH0338523U (en) | ||
| JPS6429213U (en) | ||
| JPS6241817U (en) | ||
| JPS63182218U (en) | ||
| JPH0317219U (en) | ||
| JPH0287922U (en) | ||
| JPS63197633U (en) | ||
| JPH01145930U (en) | ||
| JPS6456828U (en) | ||
| JPH02105520U (en) | ||
| JPH02118122U (en) | ||
| JPS6361523U (en) | ||
| JPS6428948U (en) | ||
| JPH01163436U (en) |