GB1371941A - Method and apparatus for treating exhaust gases of an internal combustion engine - Google Patents
Method and apparatus for treating exhaust gases of an internal combustion engineInfo
- Publication number
- GB1371941A GB1371941A GB712772A GB712772A GB1371941A GB 1371941 A GB1371941 A GB 1371941A GB 712772 A GB712772 A GB 712772A GB 712772 A GB712772 A GB 712772A GB 1371941 A GB1371941 A GB 1371941A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bed
- engine exhaust
- catalyst bed
- exhaust gases
- feb
- 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
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2832—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support granular, e.g. pellets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/08—Granular material
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
1371941 Purifying I C engine exhaust gases UNIVERSAL OIL PRODUCTS CO 16 Feb 1972 [19 Feb 1971] 7127/72 Heading F1B An I.C. engine exhaust gas purifying system comprises a catalyst bed providing a gas hourly space velocity (GHSV) at 15‹C and 1 atmosphere pressure of at least 50,000, the heat capacity of the system being less than 0À23 cal/‹C. The bed may consist of copper oxide assisted by oxides of iron, nickel, cobalt or vanadium on a carrier material, e.g. 2 to 30 wt per cent copper and 2 to 30% iron on an alumina support. Alternatively a noble metal such as platinum, palladium, ruthenium, rhodium, osmium or iridium may be used, e.g. 0À1 to 1À5% platinum on an alumina support. The bed may have a bulk density of 0À15 to 1À5 gm/cc. The system may be mounted immediately adjacent the engine exhaust manifold so that during normal running the temperature of the gas entering the catalyst bed is at least 480‹C. Secondary air may be added upstream of the bed such that the air proportion is up to three times that required to oxidize the oxidizable components. An additional copper containing catalyst bed may be provided downstream of the first bed to improve removal of nitrogen oxides. The system is said to be particularly effective immediately after cold starting of the engine. Dimensions of the bed are quoted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11699271A | 1971-02-19 | 1971-02-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1371941A true GB1371941A (en) | 1974-10-30 |
Family
ID=22370451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB712772A Expired GB1371941A (en) | 1971-02-19 | 1972-02-16 | Method and apparatus for treating exhaust gases of an internal combustion engine |
Country Status (10)
Country | Link |
---|---|
AU (1) | AU471068B2 (en) |
BR (1) | BR7200907D0 (en) |
CA (1) | CA984123A (en) |
ES (1) | ES399882A1 (en) |
FR (1) | FR2126014A5 (en) |
GB (1) | GB1371941A (en) |
IT (1) | IT950645B (en) |
NL (1) | NL7202082A (en) |
SE (1) | SE378880B (en) |
ZA (1) | ZA72770B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0622530A1 (en) * | 1993-03-26 | 1994-11-02 | Ngk Insulators, Ltd. | Exhaust gas purifying apparatus |
-
1972
- 1972-02-07 ZA ZA720770A patent/ZA72770B/en unknown
- 1972-02-09 CA CA134,337A patent/CA984123A/en not_active Expired
- 1972-02-10 AU AU38852/72A patent/AU471068B2/en not_active Expired
- 1972-02-14 IT IT48326/72A patent/IT950645B/en active
- 1972-02-16 GB GB712772A patent/GB1371941A/en not_active Expired
- 1972-02-17 ES ES399882A patent/ES399882A1/en not_active Expired
- 1972-02-17 NL NL7202082A patent/NL7202082A/xx unknown
- 1972-02-18 BR BR907/72A patent/BR7200907D0/en unknown
- 1972-02-18 FR FR7205517A patent/FR2126014A5/fr not_active Expired
- 1972-02-18 SE SE7202018A patent/SE378880B/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0622530A1 (en) * | 1993-03-26 | 1994-11-02 | Ngk Insulators, Ltd. | Exhaust gas purifying apparatus |
US5455012A (en) * | 1993-03-26 | 1995-10-03 | Ngk Insulators, Ltd. | Exhaust gas purifying apparatus |
Also Published As
Publication number | Publication date |
---|---|
CA984123A (en) | 1976-02-24 |
NL7202082A (en) | 1972-08-22 |
ZA72770B (en) | 1972-11-29 |
AU3885272A (en) | 1973-08-16 |
AU471068B2 (en) | 1976-04-08 |
ES399882A1 (en) | 1975-09-16 |
IT950645B (en) | 1973-06-20 |
BR7200907D0 (en) | 1973-06-14 |
FR2126014A5 (en) | 1972-09-29 |
DE2206954B2 (en) | 1975-09-18 |
DE2206954A1 (en) | 1972-08-31 |
SE378880B (en) | 1975-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |