MX169039B - Mejoras en un compuesto catalitico por capas para vehiculos de motor y proceso para utilizarlo - Google Patents
Mejoras en un compuesto catalitico por capas para vehiculos de motor y proceso para utilizarloInfo
- Publication number
- MX169039B MX169039B MX016264A MX1626489A MX169039B MX 169039 B MX169039 B MX 169039B MX 016264 A MX016264 A MX 016264A MX 1626489 A MX1626489 A MX 1626489A MX 169039 B MX169039 B MX 169039B
- Authority
- MX
- Mexico
- Prior art keywords
- motor vehicles
- catalytic layer
- layer compound
- group
- support
- Prior art date
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
- 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
- B01D53/38—Removing components of undefined structure
-
- 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
- B01J23/63—Platinum group metals with rare earths or actinides
-
- 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
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/908—O2-storage component incorporated in the catalyst
-
- 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
-
- 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)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
La presente invención se refiere a mejoras en un compuesto catalítico, caracterizadas porque incluye un primer soporte que es un óxido inorgánico refractorio seleccionado del grupo consistente en alúmina, sílice, óxido de titanio, óxido de circonio, aluminosolicatos y mezclas de ellos, que tiene disperso en él, cuando menos, un componente de metal noble, seleccionado del grupo consistente en platino, paladio, rodio, rutenio e iridio y que tiene dispersa inmediatamente encima de él una sobrecapa que incluye, cuando menos, un componente para almacenamiento de oxígeno y, como opción, un segundo soporte que es un óxido inorgánico refractario.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/201,245 US4868148A (en) | 1987-08-24 | 1988-06-01 | Layered automotive catalytic composite |
Publications (1)
Publication Number | Publication Date |
---|---|
MX169039B true MX169039B (es) | 1993-06-17 |
Family
ID=22745080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX016264A MX169039B (es) | 1988-06-01 | 1989-05-31 | Mejoras en un compuesto catalitico por capas para vehiculos de motor y proceso para utilizarlo |
Country Status (7)
Country | Link |
---|---|
US (1) | US4868148A (es) |
EP (1) | EP0418305B1 (es) |
JP (1) | JPH03502721A (es) |
KR (1) | KR900701375A (es) |
AU (1) | AU624390B2 (es) |
MX (1) | MX169039B (es) |
WO (1) | WO1989011906A1 (es) |
Families Citing this family (107)
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JPS5610333A (en) * | 1979-07-06 | 1981-02-02 | Toyota Motor Corp | Catalyst for cleaning up exhaust gas and manufacture of said catalyst |
FR2530489B1 (fr) * | 1982-07-26 | 1987-02-27 | Pro Catalyse | Procede de fabrication de catalyseurs pour le traitement des gaz d'echappement des moteurs a combustion interne |
US4702897A (en) * | 1983-09-27 | 1987-10-27 | Signal Applied Technologies, Inc. | Lead-tolerant catalyst system and method for treating exhaust gas containing lead compounds |
US4650782A (en) * | 1984-11-21 | 1987-03-17 | Allied Corporation | Lead-tolerant catalyst for treating exhaust gas in the presence of SO2 |
US4678770A (en) * | 1985-01-31 | 1987-07-07 | Engelhard Corporation | Three-way catalyst for lean exhaust systems |
US4727052A (en) * | 1986-06-27 | 1988-02-23 | Engelhard Corporation | Catalyst compositions and methods of making the same |
US4760044A (en) * | 1987-06-15 | 1988-07-26 | Allied-Signal Inc. | Catalyst for minimizing the H2 S emissions from automotive exhaust and method of its manufacture |
US4939113A (en) * | 1987-11-03 | 1990-07-03 | Engelhard Corporation | Hydrogen sulfide suppressing catalyst system using an oxide of copper, manganese, nickel or iron |
US5332743A (en) * | 1992-06-12 | 1994-07-26 | Mcneilab, Inc. | Benzyl and benzhydryl alcohols |
DE4306259A1 (de) * | 1993-03-01 | 1994-09-08 | Bayer Ag | Dialkyl-1-H-3-(2,4-dimethylphenyl)-pyrrolidin-2,4-dione, ihre Herstellung und ihre Verwendung |
-
1988
- 1988-06-01 US US07/201,245 patent/US4868148A/en not_active Expired - Fee Related
-
1989
- 1989-05-31 EP EP89906879A patent/EP0418305B1/en not_active Expired - Lifetime
- 1989-05-31 WO PCT/US1989/002375 patent/WO1989011906A1/en active IP Right Grant
- 1989-05-31 MX MX016264A patent/MX169039B/es unknown
- 1989-05-31 AU AU37572/89A patent/AU624390B2/en not_active Ceased
- 1989-05-31 KR KR1019900700183A patent/KR900701375A/ko not_active Application Discontinuation
- 1989-05-31 JP JP1506597A patent/JPH03502721A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR900701375A (ko) | 1990-12-01 |
US4868148A (en) | 1989-09-19 |
EP0418305B1 (en) | 1992-12-16 |
WO1989011906A1 (en) | 1989-12-14 |
AU624390B2 (en) | 1992-06-11 |
JPH03502721A (ja) | 1991-06-20 |
AU3757289A (en) | 1990-01-05 |
EP0418305A1 (en) | 1991-03-27 |
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