EP1287096A1 - Procede de regeneration d'un filtre a particules et dispositif permettant la mise en oeuvre du procede - Google Patents
Procede de regeneration d'un filtre a particules et dispositif permettant la mise en oeuvre du procedeInfo
- Publication number
- EP1287096A1 EP1287096A1 EP01940698A EP01940698A EP1287096A1 EP 1287096 A1 EP1287096 A1 EP 1287096A1 EP 01940698 A EP01940698 A EP 01940698A EP 01940698 A EP01940698 A EP 01940698A EP 1287096 A1 EP1287096 A1 EP 1287096A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydroxyl groups
- molecular weight
- low molecular
- molecule
- engine
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
- C10L1/1828—Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/04—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by adding non-fuel substances to combustion air or fuel, e.g. additives
Definitions
- the invention relates to a method for regenerating particulate filters for an internal combustion engine.
- the combustion of the particles retained on the filter is improved by increasing the temperature of said filter, for example, by the use of heating devices around the filters, such as electrical resistances or burners.
- This approach has many drawbacks.
- the additional supply of energy, necessary for combustion, in the form of heat is expensive, on the other hand, the high temperatures used permanently, quickly lead to the degradation of the filters which then have a lifespan. scaled down .
- a second approach has consisted in developing methods for reducing the temperature at which the particles can be eliminated.
- This reduction in the combustion temperature of the particles on the filter was obtained by the addition, in the fuel, of various additives, for example organometallic compounds.
- organometallic compounds act as a catalyst, promoting the combustion of the particles deposited on the filter.
- their use can sometimes lead to sudden ignition of the particles on the filter, which therefore undergoes significant thermal shock.
- these organometallic compounds produce, during their combustion, additional deposits of metallic particles on the filter and have the major drawback of considerably increasing the cost of the process.
- US patent US No. 5,055,112 discloses a particular type of chemical compound, the use of which as additives added to fuel makes it possible to reduce the level of particles resulting from the combustion of diesel engines, without the drawbacks associated with the use of organo derivatives - metallic.
- additives include aliphatic 1,2 diol compounds having 6 to 24 carbon atoms. These compounds, consisting only of carbon, hydrogen and oxygen have the advantage of not producing additional residues during their combustion.
- This object is achieved according to the invention by a method of regenerating a particulate filter placed on the exhaust pipe of the gases emitted by an internal combustion engine, characterized in that the particles retained in the filter are burned in presence of at least one low molecular weight molecule comprising at least two hydroxyl groups.
- the process of the invention is remarkable in that it makes it possible to eliminate almost all of the particles resulting from combustion so as to have a clean filter.
- the Applicant has found that these additives thus added have the effect of significantly reducing the combustion temperature of the particles on the filters.
- the Applicant has observed that, surprisingly, the low molecular weight molecules comprising at least two hydroxyl groups making it possible to more effectively reduce the combustion temperature of the particles on the filter are in the liquid state at room temperature.
- these molecules have a molecular weight of less than 100.
- the invention preferably contemplates organic compounds and advantageously glycerol and the compositions containing it.
- the chemical molecules used in the process of the present invention also have the advantage of not producing ash when they decompose by the effect of heat and therefore of not producing residues during their combustion.
- glycerol is produced industrially in very large quantity, as a waste resulting from the production of the ester rapeseed methyl.
- the Applicant has used these added molecules either directly in the exhaust gas pipe, immediately upstream of the particle filter, or in the engine intake air, upstream of the combustion chamber.
- the method of the invention therefore accepts at least the following two embodiments.
- a first embodiment of the process of the invention consists in the supply, continuous or not, of molecules of low molecular weight comprising at least two hydroxyl groups, in the pipe of the exhaust gases upstream of the particle filter.
- the addition of low molecular weight molecules comprising at least two hydroxyl groups is carried out in the form of a solution, the concentration of low molecular weight molecules comprising at least two groups hydroxyls is between 30% and 100% by volume, all preferably between 45% and 55% in vol.
- the concentration of low molecular weight molecules comprising at least two hydroxyl groups in the exhaust tube, upstream of the particle filter is advantageously between a volume of 0.05 1 and 0.5 1 for a volume of 360,000 liters of exhaust gas, preferably between 0.1 1 and 0.2 1 for 360,000 liters of exhaust gas.
- the solution comprising the low molecular weight molecules comprising at least two hydroxyl groups is provided at a flow rate of between 0.1 and
- a second embodiment of the process of the invention consists in the supply of low molecular weight molecules comprising at least two hydroxyl groups upstream of the combustion chamber, advantageously in the fuel.
- the addition of low molecular weight molecules comprising at least two hydroxyl groups is carried out in the form of a solution whose concentration of low molecular weight molecules comprising at least two hydroxyl groups is between 1% and 4% of the fuel volume, all preferably between 1.5% and 2% of the fuel volume.
- the invention also relates to a fuel in which low-weight molecules are present.
- molecular comprising at least two hydroxyl groups advantageously at a concentration of between 1% and 4% by volume, all preferably between 1.5% and 2% by volume.
- the invention also relates to a device for continuous or discontinuous injection of low molecular weight molecules comprising at least two hydroxyl groups allowing precise and variable dosing of the quantity injected as well as on / off control.
- Said device comprises a control unit for a water-cooled electromagnetic injector.
- the device according to the invention also comprises pressure regulation means controlled and controlled by the engine making it possible to adjust the injection pressure of the additive according to the operating conditions of the engine, such as the evolution of the counter exhaust pressure when the particulate filter is loaded.
- the invention also relates to an exhaust gas pipe fitted with an injection device defined above.
- the experimental protocol was carried out on a turbo-diesel type engine with direct electronic injection, using a cordierite particle filter.
- the solution used in the tests is formulated from 90% pure glycerol to obtain a working solution containing 50% by volume of glycerol diluted in demineralized water.
- Figure 1 shows an installation diagram of the above device.
- FIG. 2 presents the comparison, in terms of pressure drop on the filter, expressed in bar, as a function of time for a filter which has not undergone an injection of additive or has undergone an injection of glycerol. For an additive flow through the filter of 300 ml / hour.
- FIG. 3 illustrates the temperatures reached at the filter inlet depending on whether or not the additives have been added upstream of the filter.
- the maximum temperature after addition of glycerol is below
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Medicine (AREA)
- Health & Medical Sciences (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas After Treatment (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0007239A FR2809765B1 (fr) | 2000-06-06 | 2000-06-06 | Procede de regeneration d'un filtre a particules et dispositif permettant la mise en oeuvre du procede |
FR0007239 | 2000-06-06 | ||
PCT/FR2001/001746 WO2001094503A1 (fr) | 2000-06-06 | 2001-06-06 | Procede de regeneration d'un filtre a particules et dispositif permettant la mise en oeuvre du procede |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1287096A1 true EP1287096A1 (fr) | 2003-03-05 |
EP1287096B1 EP1287096B1 (fr) | 2006-03-08 |
Family
ID=8851020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01940698A Expired - Lifetime EP1287096B1 (fr) | 2000-06-06 | 2001-06-06 | Procede de regeneration d'un filtre a particules et dispositif permettant la mise en oeuvre du procede |
Country Status (12)
Country | Link |
---|---|
US (1) | US20030124031A1 (fr) |
EP (1) | EP1287096B1 (fr) |
JP (1) | JP2003536007A (fr) |
KR (1) | KR100747884B1 (fr) |
AT (1) | ATE319793T1 (fr) |
AU (1) | AU2001274201A1 (fr) |
BR (1) | BR0111174A (fr) |
CA (1) | CA2411755A1 (fr) |
DE (1) | DE60117790T2 (fr) |
ES (1) | ES2257415T3 (fr) |
FR (1) | FR2809765B1 (fr) |
WO (1) | WO2001094503A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7210286B2 (en) * | 2004-12-20 | 2007-05-01 | Detroit Diesel Corporation | Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter |
US7441403B2 (en) * | 2004-12-20 | 2008-10-28 | Detroit Diesel Corporation | Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities |
US7461504B2 (en) * | 2004-12-21 | 2008-12-09 | Detroit Diesel Corporation | Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter |
US7076945B2 (en) * | 2004-12-22 | 2006-07-18 | Detroit Diesel Corporation | Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter |
US7434388B2 (en) | 2004-12-22 | 2008-10-14 | Detroit Diesel Corporation | Method and system for regeneration of a particulate filter |
US20060130465A1 (en) * | 2004-12-22 | 2006-06-22 | Detroit Diesel Corporation | Method and system for controlling exhaust gases emitted from an internal combustion engine |
FR2983902B1 (fr) | 2011-12-12 | 2015-04-24 | Peugeot Citroen Automobiles Sa | Procede permettant d'optimiser le processus de combustion des particules polluantes emises par un moteur thermique d'un vehicule |
CN114352380B (zh) * | 2022-01-10 | 2022-12-02 | 岚士智能科技(上海)有限公司 | 一种碳化硅dpf的加工方法及设备 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548264B1 (fr) * | 1983-06-16 | 1985-12-13 | Renault | Regeneration des filtres a particules, notamment pour moteurs diesel |
JPS60122214A (ja) * | 1983-11-30 | 1985-06-29 | Tokyo Roki Kk | 内燃機関の排ガス中の黒煙除去方法及び装置 |
US4665690A (en) * | 1985-01-14 | 1987-05-19 | Mazda Motor Corporation | Exhaust gas cleaning system for vehicle |
US5501714A (en) * | 1988-12-28 | 1996-03-26 | Platinum Plus, Inc. | Operation of diesel engines with reduced particulate emission by utilization of platinum group metal fuel additive and pass-through catalytic oxidizer |
US5055112A (en) * | 1989-10-30 | 1991-10-08 | Ethyl Petroleum Additives, Inc. | Diesel particulate reducing 1,2-alkanediol additives |
JPH0747743B2 (ja) * | 1991-09-20 | 1995-05-24 | 太陽化学株式会社 | 燃料油用流動性改良剤 |
DE4423003C2 (de) * | 1993-07-06 | 1999-01-21 | Ford Werke Ag | Verfahren und Vorrichtung zum Reduzieren von NO¶x¶ in den Abgasen von Kraftfahrzeugverbrennungsmotoren |
US5308365A (en) * | 1993-08-31 | 1994-05-03 | Arco Chemical Technology, L.P. | Diesel fuel |
GB9508248D0 (en) * | 1995-04-24 | 1995-06-14 | Ass Octel | Process |
US6080212A (en) * | 1996-11-13 | 2000-06-27 | Henkel Corporation | Lubricants for diesel fuel |
US6015440A (en) * | 1997-10-31 | 2000-01-18 | Board Of Regents Of The University Of Nebraska | Process for producing biodiesel fuel with reduced viscosity and a cloud point below thirty-two (32) degrees fahrenheit |
-
2000
- 2000-06-06 FR FR0007239A patent/FR2809765B1/fr not_active Expired - Fee Related
-
2001
- 2001-06-06 WO PCT/FR2001/001746 patent/WO2001094503A1/fr active IP Right Grant
- 2001-06-06 JP JP2002502048A patent/JP2003536007A/ja active Pending
- 2001-06-06 KR KR1020027016615A patent/KR100747884B1/ko not_active IP Right Cessation
- 2001-06-06 EP EP01940698A patent/EP1287096B1/fr not_active Expired - Lifetime
- 2001-06-06 ES ES01940698T patent/ES2257415T3/es not_active Expired - Lifetime
- 2001-06-06 AU AU2001274201A patent/AU2001274201A1/en not_active Abandoned
- 2001-06-06 DE DE60117790T patent/DE60117790T2/de not_active Expired - Fee Related
- 2001-06-06 CA CA002411755A patent/CA2411755A1/fr not_active Abandoned
- 2001-06-06 AT AT01940698T patent/ATE319793T1/de not_active IP Right Cessation
- 2001-06-06 BR BR0111174-4A patent/BR0111174A/pt not_active IP Right Cessation
-
2002
- 2002-12-05 US US10/310,382 patent/US20030124031A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0194503A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1287096B1 (fr) | 2006-03-08 |
BR0111174A (pt) | 2003-04-15 |
AU2001274201A1 (en) | 2001-12-17 |
KR100747884B1 (ko) | 2007-08-08 |
ES2257415T3 (es) | 2006-08-01 |
WO2001094503A1 (fr) | 2001-12-13 |
ATE319793T1 (de) | 2006-03-15 |
FR2809765B1 (fr) | 2002-10-18 |
CA2411755A1 (fr) | 2001-12-13 |
JP2003536007A (ja) | 2003-12-02 |
DE60117790D1 (de) | 2006-05-04 |
US20030124031A1 (en) | 2003-07-03 |
DE60117790T2 (de) | 2006-11-30 |
KR20030022140A (ko) | 2003-03-15 |
FR2809765A1 (fr) | 2001-12-07 |
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