GB1432799A - Method for the catalytic reduction of oxides of nitrogen in exhaust gases - Google Patents
Method for the catalytic reduction of oxides of nitrogen in exhaust gasesInfo
- Publication number
- GB1432799A GB1432799A GB2709973A GB2709973A GB1432799A GB 1432799 A GB1432799 A GB 1432799A GB 2709973 A GB2709973 A GB 2709973A GB 2709973 A GB2709973 A GB 2709973A GB 1432799 A GB1432799 A GB 1432799A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vol
- exhaust gases
- nitrogen
- alumina
- oxides
- 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.)
- Expired
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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/464—Rhodium
-
- 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
- B01J37/16—Reducing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1026—Ruthenium
-
- 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)
- 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 |
---|---|---|---|
DE2227877A DE2227877A1 (de) | 1972-06-08 | 1972-06-08 | Verfahren zur katalytischen reduktion von stickoxiden in abgasen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1432799A true GB1432799A (en) | 1976-04-22 |
Family
ID=5847157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2709973A Expired GB1432799A (en) | 1972-06-08 | 1973-06-06 | Method for the catalytic reduction of oxides of nitrogen in exhaust gases |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4955562A (ja) |
BE (1) | BE800616A (ja) |
DE (1) | DE2227877A1 (ja) |
FR (1) | FR2188678A5 (ja) |
GB (1) | GB1432799A (ja) |
IT (1) | IT989053B (ja) |
NL (1) | NL7308041A (ja) |
SE (1) | SE393436B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361711A (en) * | 1981-12-18 | 1982-11-30 | The Standard Oil Company | Alcohols from olefins and synthesis gas |
-
1972
- 1972-06-08 DE DE2227877A patent/DE2227877A1/de active Pending
-
1973
- 1973-06-06 GB GB2709973A patent/GB1432799A/en not_active Expired
- 1973-06-07 BE BE132015A patent/BE800616A/xx unknown
- 1973-06-07 FR FR7320813A patent/FR2188678A5/fr not_active Expired
- 1973-06-07 SE SE7308045A patent/SE393436B/xx unknown
- 1973-06-08 NL NL7308041A patent/NL7308041A/xx unknown
- 1973-06-08 JP JP48064611A patent/JPS4955562A/ja active Pending
- 1973-06-12 IT IT25147/73A patent/IT989053B/it active
Also Published As
Publication number | Publication date |
---|---|
DE2227877A1 (de) | 1974-01-03 |
IT989053B (it) | 1975-05-20 |
SE393436B (sv) | 1977-05-09 |
FR2188678A5 (ja) | 1974-01-18 |
NL7308041A (ja) | 1973-12-11 |
JPS4955562A (ja) | 1974-05-29 |
BE800616A (fr) | 1973-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
416 | Proceeding under section 16 patents act 1949 | ||
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |