IT1054981B - DUAL-ACTION CATALYST FOR EXHAUST GAS - Google Patents
DUAL-ACTION CATALYST FOR EXHAUST GASInfo
- Publication number
- IT1054981B IT1054981B IT19553/76A IT1955376A IT1054981B IT 1054981 B IT1054981 B IT 1054981B IT 19553/76 A IT19553/76 A IT 19553/76A IT 1955376 A IT1955376 A IT 1955376A IT 1054981 B IT1054981 B IT 1054981B
- Authority
- IT
- Italy
- Prior art keywords
- dual
- exhaust gas
- action catalyst
- catalyst
- action
- Prior art date
Links
Classifications
-
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
-
- 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
- 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
- B01J23/894—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 rare earths or actinides
-
- 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 |
---|---|---|---|
US54402575A | 1975-01-24 | 1975-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1054981B true IT1054981B (en) | 1981-11-30 |
Family
ID=24170475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19553/76A IT1054981B (en) | 1975-01-24 | 1976-01-23 | DUAL-ACTION CATALYST FOR EXHAUST GAS |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5187490A (en) |
DE (1) | DE2602286A1 (en) |
FR (1) | FR2298367A1 (en) |
IT (1) | IT1054981B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171287A (en) * | 1977-09-23 | 1979-10-16 | Engelhard Minerals & Chemicals Corporation | Catalyst compositions and the method of manufacturing them |
US4171288A (en) * | 1977-09-23 | 1979-10-16 | Engelhard Minerals & Chemicals Corporation | Catalyst compositions and the method of manufacturing them |
CA1213874A (en) * | 1983-05-12 | 1986-11-12 | Tomohisa Ohata | Process for producing honeycomb catalyst for exhaust gas conversion |
GB8527549D0 (en) * | 1985-11-08 | 1985-12-11 | Shell Int Research | Supported metal catalysts |
FR2595265B1 (en) * | 1986-03-07 | 1992-10-09 | Pro Catalyse | CATALYST AND METHOD FOR THE TREATMENT OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES |
EP0244127A1 (en) * | 1986-04-16 | 1987-11-04 | Johnson Matthey, Inc., | Method for catalytically controlling exhaust gaz from automobiles |
US4904633A (en) * | 1986-12-18 | 1990-02-27 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Catalyst for purifying exhaust gas and method for production thereof |
US4895824A (en) * | 1987-09-08 | 1990-01-23 | W. R. Grace & Co.-Conn. | Add-on hydrogen sulfide trap |
GB9801321D0 (en) * | 1998-01-21 | 1998-03-18 | Dytech Corp Ltd | Catalysis |
BR9916931A (en) * | 1999-01-21 | 2001-10-30 | Ici Plc | Catalyst, catalyst precursor, vapor improvement process, vapor enhancer tubes, and catalyst precursor formation process |
-
1975
- 1975-09-12 JP JP50110137A patent/JPS5187490A/ja active Pending
-
1976
- 1976-01-22 DE DE19762602286 patent/DE2602286A1/en active Pending
- 1976-01-23 IT IT19553/76A patent/IT1054981B/en active
- 1976-01-23 FR FR7601884A patent/FR2298367A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2298367B3 (en) | 1978-10-13 |
JPS5187490A (en) | 1976-07-31 |
DE2602286A1 (en) | 1976-07-29 |
FR2298367A1 (en) | 1976-08-20 |
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