JPS5547932B2 - - Google Patents
Info
- Publication number
- JPS5547932B2 JPS5547932B2 JP3338673A JP3338673A JPS5547932B2 JP S5547932 B2 JPS5547932 B2 JP S5547932B2 JP 3338673 A JP3338673 A JP 3338673A JP 3338673 A JP3338673 A JP 3338673A JP S5547932 B2 JPS5547932 B2 JP S5547932B2
- Authority
- JP
- Japan
- 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
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/652—Chromium, molybdenum or tungsten
- B01J23/6522—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8993—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with chromium, molybdenum or tungsten
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
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- 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
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2214604A DE2214604C3 (de) | 1972-03-25 | 1972-03-25 | Verfahren zur Herstellung verbesserter Abgasreinigungs-Katalysatoren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS497186A JPS497186A (US20010021848A1-20010913-M00008.png) | 1974-01-22 |
| JPS5547932B2 true JPS5547932B2 (US20010021848A1-20010913-M00008.png) | 1980-12-03 |
Family
ID=5840129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3338673A Expired JPS5547932B2 (US20010021848A1-20010913-M00008.png) | 1972-03-25 | 1973-03-23 |
Country Status (7)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966790A (en) * | 1973-12-10 | 1976-06-29 | Engelhard Minerals & Chemicals Corporation | Compositions and methods for high temperature stable catalysts |
| US4085193A (en) * | 1973-12-12 | 1978-04-18 | Mitsubishi Petrochemical Co. Ltd. | Catalytic process for reducing nitrogen oxides to nitrogen |
| FR2293965A1 (fr) * | 1974-12-13 | 1976-07-09 | Oxycatalyse Ste Fse | Purification des gaz d'echappement des moteurs a explosion ou a combustion interne |
| CA1067060A (en) * | 1975-08-25 | 1979-11-27 | Mordecai Shelef | Equilibrium catalyst |
| MX4509E (es) * | 1975-08-27 | 1982-06-02 | Engelhard Min & Chem | Composicion catalitica mejorada para oxidar en forma simultanea hidrocarburos gascosos y monoxido de carbono y reducir oxidos de nitrogeno |
| JPS5261192A (en) * | 1975-11-17 | 1977-05-20 | Ngk Insulators Ltd | Ceramic honeycomb catalysts |
| JPS6115567U (ja) * | 1984-07-04 | 1986-01-29 | アレック電子株式会社 | 三次元電磁流速計 |
| DE3502866A1 (de) * | 1984-09-19 | 1986-03-20 | Klaus Prof. Dr.rer.nat. 4430 Steinfurt Mangold | Zweistufen-verfahren und vorrichtung zur reinigung von verbrennungsgasen |
| JPS61138537A (ja) * | 1984-12-11 | 1986-06-26 | Nikki Universal Co Ltd | 水素化脱硫触媒の製造方法 |
| JPS61291026A (ja) * | 1985-06-17 | 1986-12-20 | Hitachi Ltd | 窒素酸化物と一酸化炭素とを同時に除去する方法 |
| DE3523205A1 (de) * | 1985-06-28 | 1987-01-02 | Bayer Ag | Traegerkatalysator, verfahren zu seiner herstellung sowie dessen verwendung zur herstellung von hydroxydiphenyl |
| US5198403A (en) * | 1989-02-28 | 1993-03-30 | Degussa Ag | Process for producing a catalyst for selective reduction of nitrous oxides with ammonia |
| GB9020568D0 (en) * | 1990-09-20 | 1990-10-31 | Rover Group | Supported palladium catalysts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1378393A (fr) * | 1963-12-03 | 1964-11-13 | Grace W R & Co | Catalyseurs pour le traitement de gaz d'échappement de moteurs à combustion interne et procédé pour leur préparation |
-
1972
- 1972-03-25 DE DE2214604A patent/DE2214604C3/de not_active Expired
-
1973
- 1973-02-28 IT IT67527/73A patent/IT977923B/it active
- 1973-03-23 FR FR7310641A patent/FR2177951B1/fr not_active Expired
- 1973-03-23 GB GB1415773A patent/GB1420992A/en not_active Expired
- 1973-03-23 JP JP3338673A patent/JPS5547932B2/ja not_active Expired
- 1973-03-23 CA CA166,858A patent/CA1000934A/en not_active Expired
- 1973-03-23 SE SE7304160A patent/SE392221B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2214604B2 (de) | 1974-11-07 |
| CA1000934A (en) | 1976-12-07 |
| FR2177951B1 (US20010021848A1-20010913-M00008.png) | 1978-08-04 |
| FR2177951A1 (US20010021848A1-20010913-M00008.png) | 1973-11-09 |
| IT977923B (it) | 1974-09-20 |
| DE2214604A1 (de) | 1973-10-11 |
| GB1420992A (en) | 1976-01-14 |
| JPS497186A (US20010021848A1-20010913-M00008.png) | 1974-01-22 |
| SE392221B (sv) | 1977-03-21 |
| DE2214604C3 (de) | 1975-06-12 |
