JPS55152551A - Cleaning catalyst for exhaust gas of automobile - Google Patents
Cleaning catalyst for exhaust gas of automobileInfo
- Publication number
- JPS55152551A JPS55152551A JP5999379A JP5999379A JPS55152551A JP S55152551 A JPS55152551 A JP S55152551A JP 5999379 A JP5999379 A JP 5999379A JP 5999379 A JP5999379 A JP 5999379A JP S55152551 A JPS55152551 A JP S55152551A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- catalyst
- activated alumina
- automobile
- passage
- 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 title abstract 6
- 238000004140 cleaning Methods 0.000 title abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 5
- 229910000510 noble metal Inorganic materials 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 231100000572 poisoning Toxicity 0.000 abstract 1
- 230000000607 poisoning effect Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 229910052703 rhodium Inorganic materials 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
PURPOSE: To prevent the lowering of catalyst function by suppressing the passage of vitrifiable components by thinly coating activated alumina on an activated alumina on which noble metals as cleaning catalysts for automobile exhaust gas are supported.
CONSTITUTION: In order to obtain a catalyst subjected to a phosphorus-poisoning prevention treatment particulary for cleaning the exhaust gas of automobile, the surface of a catalyst obtained by supporting noble metals, e.g., Pt, Rh, etc., on an activated alumina support is thinly coated with a porous activated alumina composed mainly of gamma-alumina in a thickness of 15 microns or less. Thus, the catalyst so coated allows the passage of exhaust gas but prevents the passage of vitrifiable components. Therefore, the lowering of the catalytic function due to phosphorus poisoning can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5999379A JPS55152551A (en) | 1979-05-15 | 1979-05-15 | Cleaning catalyst for exhaust gas of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5999379A JPS55152551A (en) | 1979-05-15 | 1979-05-15 | Cleaning catalyst for exhaust gas of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55152551A true JPS55152551A (en) | 1980-11-27 |
Family
ID=13129193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5999379A Pending JPS55152551A (en) | 1979-05-15 | 1979-05-15 | Cleaning catalyst for exhaust gas of automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55152551A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583641A (en) * | 1981-06-26 | 1983-01-10 | Central Res Inst Of Electric Power Ind | Catalyst for catalytic combustion |
| EP0945178A4 (en) * | 1996-08-13 | 2002-01-16 | Toyota Motor Co Ltd | Exhaust emission control catalyst for diesel engines |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128893A (en) * | 1973-04-13 | 1974-12-10 | ||
| JPS5095188A (en) * | 1973-12-27 | 1975-07-29 |
-
1979
- 1979-05-15 JP JP5999379A patent/JPS55152551A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128893A (en) * | 1973-04-13 | 1974-12-10 | ||
| JPS5095188A (en) * | 1973-12-27 | 1975-07-29 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583641A (en) * | 1981-06-26 | 1983-01-10 | Central Res Inst Of Electric Power Ind | Catalyst for catalytic combustion |
| JPH034251B2 (en) * | 1981-06-26 | 1991-01-22 | Denryoku Chuo Kenkyujo | |
| EP0945178A4 (en) * | 1996-08-13 | 2002-01-16 | Toyota Motor Co Ltd | Exhaust emission control catalyst for diesel engines |
| US6426316B2 (en) | 1996-08-13 | 2002-07-30 | Toyota Jidosha Kabushiki Kaisha | Exhaust emission control catalyst for diesel engines |
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