EP1515012A1 - Vorrichtung zur Entfernung von Russpartikeln aus einem Abgasstrom von Verbrennungsmotoren - Google Patents
Vorrichtung zur Entfernung von Russpartikeln aus einem Abgasstrom von Verbrennungsmotoren Download PDFInfo
- Publication number
- EP1515012A1 EP1515012A1 EP03020688A EP03020688A EP1515012A1 EP 1515012 A1 EP1515012 A1 EP 1515012A1 EP 03020688 A EP03020688 A EP 03020688A EP 03020688 A EP03020688 A EP 03020688A EP 1515012 A1 EP1515012 A1 EP 1515012A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- metal foam
- exhaust gas
- module
- soot particles
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 33
- 239000006229 carbon black Substances 0.000 title 1
- 230000008030 elimination Effects 0.000 title 1
- 238000003379 elimination reaction Methods 0.000 title 1
- 239000006262 metallic foam Substances 0.000 claims abstract description 73
- 239000004071 soot Substances 0.000 claims abstract description 53
- 239000002245 particle Substances 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 44
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 13
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 23
- 239000010970 precious metal Substances 0.000 claims description 16
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 14
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052762 osmium Inorganic materials 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229910052703 rhodium Inorganic materials 0.000 claims description 6
- 229910052707 ruthenium Inorganic materials 0.000 claims description 6
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 238000005470 impregnation Methods 0.000 claims description 3
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005495 investment casting Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 238000003980 solgel method Methods 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 19
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 239000002956 ash Substances 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000002272 engine oil additive Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Classifications
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- 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
- F01N3/2807—Metal other than sintered metal
-
- 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
- F01N3/0231—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 using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
-
- 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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
-
- 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
- F01N2330/14—Sintered material
-
- 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
- F01N2330/22—Metal foam
-
- 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
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
Definitions
- the invention relates to a device for removing soot particles from an exhaust gas stream of internal combustion engines in a module (1) by oxidation of the temporarily trapped soot particles with nitrogen dioxide (NO 2 ), wherein the nitrogen dioxide by oxidation of existing in the exhaust nitrogen monoxide (NO) to a catalyst in Depending on the flow rate of the exhaust gas at a temperature above about 200 ° C is formed.
- NO 2 nitrogen dioxide
- Another way to continuously remove the filtered soot particles consists in passing the particles through Injecting a the combustion temperature of the soot particles Remove degrading additive from the filter substrate. Such an approach is also not very special suitable solution, because the additives supplied to the self Contribute to ash formation.
- EP 835684 A2 discloses a method for the exhaust aftertreatment of vans and passenger cars. According to the specified method, the exhaust gas is passed over two catalysts arranged one behind the other. On the first catalyst, the nitrogen monoxide contained in the exhaust gas is oxidized to nitrogen dioxide. At the second downstream catalyst, which acts as a filter, the collected soot particles are then deposited and oxidized at a temperature of about 250 ° C partly according to equation (1) to carbon dioxide CO 2 and the nitrogen dioxide NO 2 reduced to nitrogen: 2NO 2 + 2C ⁇ 2CO 2 + N 2
- the first catalyst used consists of a honeycomb flow monolith, with an oxidation catalyst is coated.
- From DE 3407172 C2 is a device for Exhaust gas aftertreatment of diesel engines known in a Housing a series of filter elements with different Contains distance from each other. It has at least one Filter element A is the combustion temperature of soot degrading coating on. Next is at least one Filter element B is present, the one of the combustion of harmful gaseous substances supporting catalyst contains.
- WO 99/09307 is a method for the reduction of Soot emission from heavy trucks known.
- the exhaust gas for the oxidation of Nitric oxide to nitrogen dioxide over a catalyst and then as usual for the oxidation of the in a soot filter passed collected soot.
- New to the specified procedure is that a portion of the purified exhaust gas thereafter over a Radiator routed and with the intake air of the diesel engine is mixed.
- the object of the present invention is to be seen in a as a permanently open system operated device for Exhaust gas aftertreatment of combustion engine generated exhaust gas to create that as "on-board" self-regenerating Plant is constantly open and essentially without the otherwise usual filter devices works and thus clogging prevents the exhaust aftertreatment system and simultaneously an effective post-treatment of the evolved exhaust gas achieved, especially with regard to the removal of soot particles from the exhaust-gas engine-generated exhaust gas to be treated.
- soot particles present in the combustion engine exhaust gases are initially captured temporarily using a FeCr alloy based open-pore metal foam.
- the soot particles are then oxidized via the so-called gas catalysis according to equations (2) and (3) with the nitrogen dioxide NO 2 sustainably produced by recirculation of nitrogen monoxide on the noble metal-coated metal foam, ie burned: NO 2 + C ⁇ CO + NO 2CO + O 2 ⁇ 2CO 2
- nitrogen monoxide NO reacts to the noble metal coated metal foam again to nitrogen dioxide NO 2 so that it can be said of a multiple use of nitrogen monoxide in a sense by recirculation, a sustained increase required for the reduction of soot particles and on the precious metal coated metal foam produced nitrogen dioxide NO 2 causes.
- the metal foam is characterized by high thermal Oxidation resistance, high thermal shock resistance, high corrosion resistance, especially against dilute sulfuric acid, and mechanical strength.
- the metal foam is made of at least a precious metal the group Ru, Rh, Pd, Os, Ir, Pt or a mixture of these Coated precious metals.
- the metal foam is advantageously coated with a compound which reduces the combustion temperature of the soot particles, it being preferred to use cerium orthovanadate (CeVO 4 ).
- the coated metal foams also not from the ashes from the Motor oil additives are inhibited, since such ashes the Metal foams can happen and be blown out, leaving the preferred device as a self-regenerating module always open.
- the inventively used metal foam whose Geometry is almost freely selectable, can with two different methods are produced.
- a procedure is based on the impregnation of a PU foam precursor with a so-called slurry containing spherical metal particles contains exactly defined particle size distribution, and a subsequent sintering process.
- it is a conventional investment casting process.
- a particular advantage of the open-pore used Metal foam in contrast to wall-flow filters consists especially in the disordered cell geometry, within shortest distance a 3D mixing, i. a turbulent mixing, the exhaust gas allows. This will increases the efficiency of the catalyst device and a Clogging prevented.
- the metal foam is of relative density in the range of 2 to 20%, with the metal foam is electrically conductive.
- the metal foam is preferably one with equipped with certain number of pores, which are in one area from 3 to 80 pores per inch (pores per (linear) inch) or in the abbreviation (ppi) is located.
- the precious metal coating on the metal foam becomes preferably directly or by impregnation of a washcoat with a precious metal from the group Ru, Rh, Pd, Os, Ir, Pt or a mixture of these precious metals in a concentration from 1.0 g to 2.5 g of precious metal per liter of metal foam applied.
- a catalyst is an oxidation catalyst that depends on of course, too Hydrocarbons (HC) including the heavy ones Hydrocarbons (SOF) from about 200 ° C and carbon monoxide (CO) from oxidized about 150 ° C.
- metal foams with a Ce (III) VO 4 (cerium orthovanadate) coating are preferably provided in the device, a catalytically active compound which reduces the combustion temperature of the soot particles, a so-called oxygen storage compound.
- a catalytically active compound which reduces the combustion temperature of the soot particles, a so-called oxygen storage compound.
- Such a catalyst reduces the combustion temperature of the soot particles to about 360 ° C in direct contact, so that one speaks of a so-called solid-phase catalysis.
- the compound reducing the combustion temperature of the soot particles to the metal foam is advantageously cerium orthovanadate by a plasma process, a washcoat process or a sol-gel process in a concentration of 1.0 g to 25 g CeVO 4 Applied per liter of metal foam.
- the arrangement of the coated or uncoated Metal foams in the catalyst module is almost free selectable.
- the device should at least made of a precious metal coated metal foam consist.
- the number of pores of the metal foams in the direction of Exhaust flow variable design preferably increase downstream. Between the individual or all metal foams exists advantageously a distance of 0 to 50 mm.
- the metal foam can be particularly advantageous cohesively introduced into a metallic housing, and preferably by soldering, since it is in the used metal foam, as already mentioned, to a metallic compound is. This can be done when using a material connection to the insert dispensed toxicologically extremely questionable Pavlmatten which are standard on ceramic filters, for example be used.
- a particular embodiment of the device according to the invention is that the metal foams with a bearing mat in the metallic module are introduced.
- a module can be constructed in an advantageous manner be that of several similarly designed modules or variously formed modules composed is.
- the modules are preferably parallel to the Exhaust gas flow arranged, depending on the requirement for two same or different modules or three same or different modules and the like.
- FIG. 1 shows a module 1 through which exhaust gas flows.
- the metal foams 2, 3 alternately one behind the other are arranged.
- the metal foams are alternating with a noble metal from the group Ru, Rh, Pd, Os, Ir, Pt or a mixture of these precious metals coated or uncoated.
- the coated Metal foams 2 each upstream upstream of the uncoated Metal foams 3 arranged in exhaust gas flow, respectively Temporarily trap soot particles.
- FIG. 2 shows the module 1, at the only coated with precious metal foams. 2 are arranged, which capture even soot particles temporarily ..
- FIG. 3 shows the module 1, at the metal foams coated alternately with noble metal 2 and with a combustion temperature of soot particles derating compound coated metal foams 4 are arranged.
- the respective with noble metal coated metal foams 2 upstream the one with the combustion temperature of soot particles derating compound coated metal foams 4 in Exhaust gas flow attached, each soot particles temporarily catch.
- the trapped soot is additionally oxidized by direct contact with the superficially applied coating acting as a catalyst.
- the applied coating consists of an oxygen storage compound, such as cerium orthovanadate Ce (III) VO 4 .
- FIG. 4 shows another embodiment with a module 5, which consists of two parallel modules 1 ' is constructed according to the embodiment of FIG. 1, at However, the conically tapered inlet area for the Exhaust gas and the tapered exhaust outlet area omitted in such an embodiment flows through the Exhaust respectively the parallel arranged modules 1 'as in Connection with Fig. 1 indicated.
- the Metal foams 2, 3 alternately with a precious metal from the Group Ru, Rh, Pd, Os, Ir, Pt or a mixture of these Precious metals coated or uncoated.
- the coated metal foams 2 are each upstream before the uncoated metal foams 3 in exhaust gas flow arranged.
- Another arrangement of the metal foams 2, 3, i. the Insertion of the uncoated metal foams 3 respectively upstream of the coated metal foams 2 in Exhaust gas flow can also be selected as required.
- modules 1 'in the module 5 are also several modules 1 'in the Module 5 to increase the efficiency in an advantageous Way to accommodate.
- FIG. 5 shows a cross section through that in FIG. 4 illustrated module 5 along the section line A-B, wherein each one module 1 'arranged parallel to the exhaust gas flow and flows through the exhaust gas.
- the parallel arrangement and the number of modules 1 'in the Module 5 can almost arbitrarily to the respective engine power be adjusted. It can the required efficiency regarding the removal of soot particles from the combustion engine generated exhaust stream advantageous Be taken into account by the nature of the Precious metal coating or precious metal loading, the geometric surface of the metal foam and the number of coated metal foams.
- emissions reductions for soot particles be achieved by about 85% to 90% without the required permissible nitrogen dioxide limits exceed.
- the efficiency for the reduction of Soot particle emission by a thermally induced Regeneration can be increased even further, like this one for example, with a burner or an electric Energy coupling achieved by a resistance heater can be.
- the thermally induced regeneration can also by Oxidation of late injected into the internal combustion engine Fuel, a so-called post-injection, through which the exhaust gas temperature initially from about 150 to 200 ° C. can be raised to about 400 ° C.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (22)
- Vorrichtung zur Entfernung von Rußpartikeln aus einem Abgasstrom von Verbrennungsmotoren in einem Modul (1) durch Oxidation der temporär in einer Katalysatoranlage eingefangenen Rußpartikel mit Stickstoffdioxid (NO2), wobei das Stickstoffdioxid durch Oxidation des im Abgas vorhandenen Stickstoffmonoxids (NO) an einem Katalysator in Abhängigkeit von der Strömungsgeschwindigkeit des Abgases bei einer Temperatur oberhalb von ca. 200°C entsteht, dadurch gekennzeichnet, dass in dem Modul (1) zumindest ein die Stickstoffdioxid-Konzentration im Abgas für die Oxidation der Rußpartikel erhöhender edelmetallbeschichteter offenporiger Metallschaum (2) angeordnet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der edelmetallbeschichtete Metallschaum (2) die Eigenschaft aufweist, das Stickstoffmonoxid (NO) zu rezirkulieren und dadurch mehrfach zu nutzen.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) aus einer FeCr-Legierung für eine hohe thermische Oxidationsbeständigkeit, hohe Temperaturwechselbeständigkeit, hohe Korrosionsbeständigkeit und hohe mechanische Festigkeit besteht.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Metallschaum (2) zumindest mit einem Edelmetall aus der Gruppe Ru, Rh, Pd, Os, Ir, Pt oder einem Gemisch dieser Edelmetalle beschichtet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (4) mit einer die Verbrennungstemperatur der Rußpartikel herabsetzenden Verbindung beschichtet ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Metallschaum (4) mit der die Verbrennungstemperatur der Rußpartikel herabsetzenden Verbindung aus Cer-orthovanadat (CeVO4) beschichtet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Modul (1) als offenes, sich selbst regenerierendes Modul ausgebildet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) mit einem Pulversinterverfahren oder einem Feingussverfahren hergestellt ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) mit einer eine 3D-Durchströmung hervorrufenden unregelmäßigen Zellgeometrie mit einer Mischerfunktion ausgebildet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) mit einer relativen Dichte im Bereich von 2 bis 20 % ausgebildet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) mit einer Porenanzahl in einem Bereich von 3 bis 80 ppi ausgebildet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) mit einer frei wählbaren Geometrie ausgebildet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Metallschaum (2, 3, 4) elektrisch leitend ist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Metallschaum (2) direkt oder durch Imprägnierung eines Wash-coats mit einem Edelmetall aus der Gruppe Ru, Rh, Pd, Os, Ir, Pt oder einem Gemisch dieser Edelmetalle in einer Konzentration von 1,0 g - 2,5 g Edelmetall pro Liter Metallschaum beschichtet ist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass auf den Metallschaum (4) die für die Verbrennungstemperatur der Rußpartikel herabsetzende Verbindung Cer-orthovanadat mit einem Plasma-Verfahren, einem Wash-coat-Verfahren oder einem Sol-Gel-Verfahren in einer Konzentration von 1,0 g - 25 g CeVO4/Liter Metallschaum aufgebracht ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Porenanzahl der Metallschäume (2, 3, 4) in Richtung des Abgasstromes variiert gestaltet ist.
- Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass die Porenanzahl der Metallschäume (2, 3, 4) in Richtung des Abgasstromes zunimmt.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass zwischen einzelnen oder allen Metallschäumen (2, 3, 4) ein Abstand von 0-50 mm besteht.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Metallschäume (2, 3, 4) mit einem Lötprozess stoffschlüssig in das metallische Modul (1) eingebracht sind.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Metallschäume (2, 3, 4) mit einer Lagermatte in das metallische Modul (1) eingebettet sind.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Modul (5) aus mehreren gleichartig aufgebauten Modulen (1) oder verschiedenartig aufgebauten Modulen ausgebildet ist.
- Vorrichtung nach Anspruch 21, dadurch gekennzeichnet, dass die mehreren gleichartig aufgebauten Module (1) oder verschiedenartig aufgebauten Module in dem Modul (5) parallel zur Abgasströmung angeordnet sind.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT03020688T ATE342434T1 (de) | 2003-09-11 | 2003-09-11 | Vorrichtung zur entfernung von russpartikeln aus einem abgasstrom von verbrennungsmotoren |
DE50305367T DE50305367D1 (de) | 2003-09-11 | 2003-09-11 | Vorrichtung zur Entfernung von Russpartikeln aus einem Abgasstrom von Verbrennungsmotoren |
ES03020688T ES2272867T3 (es) | 2003-09-11 | 2003-09-11 | Dispositivo para la eliminacion de las particulas de hollin de una corriente del gas de escape de motores de combustion interna. |
EP03020688A EP1515012B1 (de) | 2003-09-11 | 2003-09-11 | Vorrichtung zur Entfernung von Russpartikeln aus einem Abgasstrom von Verbrennungsmotoren |
EP06021008A EP1734234A3 (de) | 2003-09-11 | 2003-09-11 | Verfahren zum Entfernen von Rußpartikeln aus einem Abgasstrom eines Verbrennungsmotors |
DK03020688T DK1515012T3 (da) | 2003-09-11 | 2003-09-11 | Anordning til fjernelse af sodpartikler fra en udstödningsgasström i forbrændingsmotorer |
US10/938,716 US20050056977A1 (en) | 2003-09-11 | 2004-09-10 | Apparatus for removing carbon particles from an exhaust gas stream of internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03020688A EP1515012B1 (de) | 2003-09-11 | 2003-09-11 | Vorrichtung zur Entfernung von Russpartikeln aus einem Abgasstrom von Verbrennungsmotoren |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06021008A Division EP1734234A3 (de) | 2003-09-11 | 2003-09-11 | Verfahren zum Entfernen von Rußpartikeln aus einem Abgasstrom eines Verbrennungsmotors |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1515012A1 true EP1515012A1 (de) | 2005-03-16 |
EP1515012B1 EP1515012B1 (de) | 2006-10-11 |
Family
ID=34130191
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03020688A Expired - Lifetime EP1515012B1 (de) | 2003-09-11 | 2003-09-11 | Vorrichtung zur Entfernung von Russpartikeln aus einem Abgasstrom von Verbrennungsmotoren |
EP06021008A Withdrawn EP1734234A3 (de) | 2003-09-11 | 2003-09-11 | Verfahren zum Entfernen von Rußpartikeln aus einem Abgasstrom eines Verbrennungsmotors |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06021008A Withdrawn EP1734234A3 (de) | 2003-09-11 | 2003-09-11 | Verfahren zum Entfernen von Rußpartikeln aus einem Abgasstrom eines Verbrennungsmotors |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050056977A1 (de) |
EP (2) | EP1515012B1 (de) |
AT (1) | ATE342434T1 (de) |
DE (1) | DE50305367D1 (de) |
DK (1) | DK1515012T3 (de) |
ES (1) | ES2272867T3 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007078855A1 (en) * | 2005-12-22 | 2007-07-12 | Basf Catalysts Llc | Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst |
WO2007096085A1 (en) * | 2006-02-20 | 2007-08-30 | Cvrd Inco Limited | An apparatus for the separation of particles contained in exhaust gases of internal combustion engines |
AT504391B1 (de) * | 2006-11-13 | 2008-12-15 | Pankl Emission Control Systems | Kombiniertes abgasreinigungssystem |
CN102410066A (zh) * | 2011-09-28 | 2012-04-11 | 虞跃平 | 机动车尾气多级净滤装置 |
EP3296015A1 (de) | 2016-09-15 | 2018-03-21 | Treibacher Industrie AG | Verwendung von vanadaten in oxidationskatalysatoren |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9700825B2 (en) * | 2006-09-21 | 2017-07-11 | Acs Industries, Inc. | Expanded metal filters |
US10717032B2 (en) * | 2006-09-21 | 2020-07-21 | Acs Industries, Inc. | Expanded metal filters |
DE102009025136A1 (de) * | 2009-06-17 | 2010-12-23 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Vorrichtung und Verfahren zur Behandlung eines Partikel aufweisenden Abgases |
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DE3729683A1 (de) * | 1987-09-04 | 1989-03-30 | Mototech Motoren Umweltschutz | Einrichtung zur nachbehandlung der abgase von kleinvolumigen zweitaktottomotoren sowie verfahren zu ihrer herstellung |
DE3729126A1 (de) * | 1987-09-01 | 1989-04-06 | Mototech Motoren Umweltschutz | Dieselruss-partikelfilter und verfahren zu seiner herstellung |
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EP1065352A2 (de) * | 1999-06-29 | 2001-01-03 | Sumitomo Electric Industries, Ltd. | Partikelfalle für Dieselmotor |
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2003
- 2003-09-11 EP EP03020688A patent/EP1515012B1/de not_active Expired - Lifetime
- 2003-09-11 EP EP06021008A patent/EP1734234A3/de not_active Withdrawn
- 2003-09-11 ES ES03020688T patent/ES2272867T3/es not_active Expired - Lifetime
- 2003-09-11 DE DE50305367T patent/DE50305367D1/de not_active Expired - Lifetime
- 2003-09-11 AT AT03020688T patent/ATE342434T1/de active
- 2003-09-11 DK DK03020688T patent/DK1515012T3/da active
-
2004
- 2004-09-10 US US10/938,716 patent/US20050056977A1/en not_active Abandoned
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US5993502A (en) * | 1996-07-15 | 1999-11-30 | Kubota Corporation | Sintered metal filters |
EP1065352A2 (de) * | 1999-06-29 | 2001-01-03 | Sumitomo Electric Industries, Ltd. | Partikelfalle für Dieselmotor |
DE10020555A1 (de) * | 2000-04-27 | 2001-10-31 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Reinigung von Abgasen eines Verbrennungsmotors |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007078855A1 (en) * | 2005-12-22 | 2007-07-12 | Basf Catalysts Llc | Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst |
WO2007096085A1 (en) * | 2006-02-20 | 2007-08-30 | Cvrd Inco Limited | An apparatus for the separation of particles contained in exhaust gases of internal combustion engines |
GB2448648A (en) * | 2006-02-20 | 2008-10-22 | Cvrd Inco Ltd | An apparatus for the separation of particles contained in exhaust gases of internal combustion engines |
US8444734B2 (en) | 2006-02-20 | 2013-05-21 | Alantum Corporation | Apparatus for the separation of particles contained in exhaust gases of internal combustion engines |
AT504391B1 (de) * | 2006-11-13 | 2008-12-15 | Pankl Emission Control Systems | Kombiniertes abgasreinigungssystem |
CN102410066A (zh) * | 2011-09-28 | 2012-04-11 | 虞跃平 | 机动车尾气多级净滤装置 |
EP3296015A1 (de) | 2016-09-15 | 2018-03-21 | Treibacher Industrie AG | Verwendung von vanadaten in oxidationskatalysatoren |
WO2018050639A1 (en) | 2016-09-15 | 2018-03-22 | Treibacher Industrie Ag | Use of vanadates as oxidation catalysts |
Also Published As
Publication number | Publication date |
---|---|
EP1734234A3 (de) | 2007-01-03 |
DK1515012T3 (da) | 2007-02-19 |
DE50305367D1 (de) | 2006-11-23 |
ES2272867T3 (es) | 2007-05-01 |
ATE342434T1 (de) | 2006-11-15 |
EP1734234A2 (de) | 2006-12-20 |
EP1515012B1 (de) | 2006-10-11 |
US20050056977A1 (en) | 2005-03-17 |
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