JPS6430642A - Catalyst for purifying exhaust gas - Google Patents
Catalyst for purifying exhaust gasInfo
- Publication number
- JPS6430642A JPS6430642A JP62186147A JP18614787A JPS6430642A JP S6430642 A JPS6430642 A JP S6430642A JP 62186147 A JP62186147 A JP 62186147A JP 18614787 A JP18614787 A JP 18614787A JP S6430642 A JPS6430642 A JP S6430642A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- catalyst
- nox
- purifying exhaust
- automobile
- 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
- 239000007789 gas Substances 0.000 abstract 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 229910052796 boron Inorganic materials 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- -1 Ba and Sr Chemical class 0.000 abstract 1
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
PURPOSE:To decompose the NOx in the exhaust gas having a high content of oxygen without using a reducing agent by setting the NOx decomposing catalyst expressed by a specified crystal structural formula in the passage for the exhaust gas from the automobile having an internal-combustion engine. CONSTITUTION:The NOx decomposing catalyst having the crystal structure expressed by formula I is formed (A and A' are an alkaline-earth metal such as Ba and Sr, B and B' are a rare-earth metal such as Y, Nd, and La, C and C' are a copper-group metal such as Cu and Ag, 0<=x,x'<=3.0, 0<=y,y'<=2.0, 0<=z,z'<=4.0, 4.0<=alpha<=8.0, and 0<=beta<=2.0). The NOx decomposing catalyst 3 is set in the passage for the exhaust gas from the automobile having an internal- combustion engine 1 to form the catalyst for purifying exhaust gas. The NOx in the exhaust gas contg. about 10% oxygen and the NOx of the order of magnitude of ppm can be decomposed by this catalyst constitution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62186147A JPS6430642A (en) | 1987-07-24 | 1987-07-24 | Catalyst for purifying exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62186147A JPS6430642A (en) | 1987-07-24 | 1987-07-24 | Catalyst for purifying exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6430642A true JPS6430642A (en) | 1989-02-01 |
Family
ID=16183201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62186147A Pending JPS6430642A (en) | 1987-07-24 | 1987-07-24 | Catalyst for purifying exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6430642A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104345A (en) * | 1987-10-15 | 1989-04-21 | Res Dev Corp Of Japan | Oxygen-deficient perovskite catalyst |
| JPH01245851A (en) * | 1988-03-25 | 1989-10-02 | Res Dev Corp Of Japan | Oxygen deficient perovskite catalyst |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186146A (en) * | 1986-02-10 | 1987-08-14 | Taisei Corp | Non-pollution windowless henhouse |
| JPS62186152A (en) * | 1986-02-07 | 1987-08-14 | Matsushita Seiko Co Ltd | Control device of air conditioner |
| JPS62186149A (en) * | 1986-02-13 | 1987-08-14 | Fujita Corp | Air cleaner in clean room |
| JPS62186148A (en) * | 1986-02-10 | 1987-08-14 | Daikin Plant Kk | Room pressure control system |
| JPS62186145A (en) * | 1986-02-07 | 1987-08-14 | Matsushita Seiko Co Ltd | Ventilation fan |
| JPS62186150A (en) * | 1986-02-13 | 1987-08-14 | Fujita Corp | Air cleaner in clean room |
| JPS62186151A (en) * | 1986-02-10 | 1987-08-14 | Suehiro Sangyo Kk | Method of intake of external air in underground room |
-
1987
- 1987-07-24 JP JP62186147A patent/JPS6430642A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186152A (en) * | 1986-02-07 | 1987-08-14 | Matsushita Seiko Co Ltd | Control device of air conditioner |
| JPS62186145A (en) * | 1986-02-07 | 1987-08-14 | Matsushita Seiko Co Ltd | Ventilation fan |
| JPS62186146A (en) * | 1986-02-10 | 1987-08-14 | Taisei Corp | Non-pollution windowless henhouse |
| JPS62186148A (en) * | 1986-02-10 | 1987-08-14 | Daikin Plant Kk | Room pressure control system |
| JPS62186151A (en) * | 1986-02-10 | 1987-08-14 | Suehiro Sangyo Kk | Method of intake of external air in underground room |
| JPS62186149A (en) * | 1986-02-13 | 1987-08-14 | Fujita Corp | Air cleaner in clean room |
| JPS62186150A (en) * | 1986-02-13 | 1987-08-14 | Fujita Corp | Air cleaner in clean room |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104345A (en) * | 1987-10-15 | 1989-04-21 | Res Dev Corp Of Japan | Oxygen-deficient perovskite catalyst |
| JPH01245851A (en) * | 1988-03-25 | 1989-10-02 | Res Dev Corp Of Japan | Oxygen deficient perovskite catalyst |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS51147470A (en) | A process for catalytic reduction of nitrogen oxides | |
| ATE112697T1 (en) | PROCESS FOR REDUCING NITROUS OXIDES FROM EXHAUST GASES. | |
| GB1417544A (en) | Catalysts containing platinum and rhodium | |
| DE59913742D1 (en) | METHOD FOR THE CATALYTIC DECOMPOSITION OF N2O | |
| ES2000263A6 (en) | The use of a catalyst for reducing the nitrogen oxide content of combustion gases. | |
| JPS6430643A (en) | Catalyst for purifying exhaust gas | |
| JPS51124685A (en) | Catalyst composition for feducing nox | |
| JPS6430642A (en) | Catalyst for purifying exhaust gas | |
| JPS553872A (en) | Preparing denitrification catalyst | |
| JPS51137670A (en) | Method for decreasing nitrogen oxides in exhaust gas | |
| JPS6430641A (en) | Catalyst for purifying exhaust gas | |
| JPS5242464A (en) | Method of reducing and removing nox in exhaust gas | |
| JPS6430644A (en) | Nox decomposition catalyst | |
| JPS6430647A (en) | Catalyst for purifying exhaust gas | |
| JPS55112913A (en) | Low nox combustion system | |
| GB1368661A (en) | Catalyst its method of production and the utilisation of same for the purification of exhaust gases from internal combustion engines | |
| JPS57105245A (en) | Preparation of catalyst composition | |
| GB1405406A (en) | Reduction of nitrogen oxides | |
| JPS6430627A (en) | Air filter | |
| JPS54132472A (en) | Treating method for exhaust gas containing nitrogen oxides | |
| CA1091641A (en) | Enriched rhodium catalyst and method for making same | |
| JPS53118202A (en) | Method of minimizing formation of nitrogen oxides in sintering system | |
| JPS5330475A (en) | Treating method for exhaust gas containing nitrogen oxides | |
| JPS6430573A (en) | Tobacco filter | |
| JPS5295573A (en) | Decreasing method of nitrogen oxide in exhaust gas |