EP1209330A1 - Dispositif tubulaire pour la séparation et la combustion de particules d'échappement, et procédés pour l'élimination de ces particules, particulièrement d'échappement diesel - Google Patents

Dispositif tubulaire pour la séparation et la combustion de particules d'échappement, et procédés pour l'élimination de ces particules, particulièrement d'échappement diesel Download PDF

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Publication number
EP1209330A1
EP1209330A1 EP01127830A EP01127830A EP1209330A1 EP 1209330 A1 EP1209330 A1 EP 1209330A1 EP 01127830 A EP01127830 A EP 01127830A EP 01127830 A EP01127830 A EP 01127830A EP 1209330 A1 EP1209330 A1 EP 1209330A1
Authority
EP
European Patent Office
Prior art keywords
filter
exhaust gas
soot particles
soot
catalyst
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
Application number
EP01127830A
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German (de)
English (en)
Other versions
EP1209330B1 (fr
Inventor
Hans Hildenbrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Publication of EP1209330A1 publication Critical patent/EP1209330A1/fr
Application granted granted Critical
Publication of EP1209330B1 publication Critical patent/EP1209330B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F01N3/0217—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 the filtering elements having the form of hollow cylindrical bodies
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N3/0212—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 with one or more perforated tubes surrounded by filtering material, e.g. filter candles
    • 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
    • F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0226—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being fibrous
    • 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
    • F01N3/033—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 in combination with other devices
    • F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • 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
    • F01N2330/10—Fibrous material, e.g. mineral or metallic wool
    • 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
    • F01N2330/12—Metallic wire mesh fabric or knitting
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/065—Surface coverings for exhaust purification, e.g. catalytic reaction for reducing soot ignition temperature
    • 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

Definitions

  • the invention relates to a tubular device for the separation and combustion of Soot particles in exhaust gas streams, in particular diesel soot, with a catalyst and a filter, and a method for removing soot particles in exhaust gas streams, in particular diesel exhaust gases, by means of a tubular device, the soot particles being deposited on a filter are.
  • the NO-containing exhaust gas is first passed without a filter over a catalytic converter in order to convert the NO in the exhaust gas to NO 2 , before filtering to remove it particles.
  • the N0 2 containing exhaust gas is then used to burn the trapped on the filter particles, wherein the amount of converted to NO 2 NO sufficient to enable it to continue the combustion of the trapped on the filter particles at a temperature of less than 400 ° C ,
  • the associated device disclosed therein initially consists of a tubular device in which the above-mentioned catalyst for converting NO to NO 2 is located, after which a second tubular body has the above-mentioned filter for depositing the diesel soot.
  • a disadvantage of this method and this device is the fact that one is not always satisfactory interaction in terms of efficiency between catalyst and filter can occur and in connection with this the ratio of the volume consumed to Effectiveness of the device, especially when applied to passenger cars, is unfavorable appears.
  • practice shows that only sulfur-free diesel fuel is used may be.
  • this problem is solved by a device according to claim 1 A method according to claim 5 and solved by a use according to claim 9.
  • a catalyst for lowering is on a first filter the soot ignition point temperature applied as a coating, with a second filter first filter in the longitudinal direction of the tubular device and / or radially at least partially encloses.
  • the exhaust gas containing soot particles is passed through the first filter, the soot particles are separated on the first filter and the second filter, at the same time the exhaust gas on the first filter is conditioned with the aid of the catalytic converter in order to burn of the soot particles deposited on the first and second filters.
  • the device according to the invention is thus designed as a so-called filter candle.
  • the spatial Fixing and spacing of the first and second filters from one another takes place in the Usually through radial perforated plates.
  • the first filter can be provided with a catalytic aluminum oxide-containing coating be, which are also inorganic oxides of rare earth metals and / or La, Ti, Zr, Hf and others May contain metals.
  • the coating can be precious metals, for example, as active components Pt, Pd, Rh, Ru or Ir included.
  • the second filter contains a further substance that lowers the soot ignition point, for example Fe, Cu, Mo, La, Cs, V, Ce, Zr, Si as oxides or mixed oxides and / or with the catalyst conditioning the exhaust gas, for example Pt, Pd, Ru, Rh; Ir or combinations of this, is coated, since in the first case the combustion of those deposited on the second filter Soot particles relieved and in the second case by the one fixed on the second filter A catalyst redundancy is available.
  • a further substance that lowers the soot ignition point for example Fe, Cu, Mo, La, Cs, V, Ce, Zr, Si as oxides or mixed oxides and / or with the catalyst conditioning the exhaust gas, for example Pt, Pd, Ru, Rh; Ir or combinations of this, is coated, since in the first case the combustion of those deposited on the second filter Soot particles relieved and in the second case by the one fixed on the second filter A catalyst redundancy is available.
  • the first filter is a wire mesh filter and / or the second Filters made of a ceramic or metallic knitted fabric, fabric, flow, fiber or sintered body exists because these embodiments have proven themselves in practice.
  • exhaust gas containing soot particles is passed through a first with a filter coated to reduce the soot ignition temperature and the soot particles are separated on the first and on a second filter and simultaneously with the help of the catalytic converter, the exhaust gas for burning those separated on the first and second filters Soot particles conditioned, the second filter the first filter lengthways and / or at least partially radially.
  • the second filter contains a further substance that lowers the ignition point and / or is coated with the exhaust gas conditioning catalyst, since in the first case the burning of the soot particles separated on the second filter is facilitated and in the second If the catalyst is fixed to the second filter, conditioning redundancy is available stands.
  • the first filter is a wire mesh filter and / or the second Filters made of a ceramic or metallic knitted fabric, fabric, flow, fiber or sintered body exists because these embodiments have proven themselves in practice.
  • the device according to the invention is primarily used to remove soot particles in exhaust gas streams, especially diesel exhaust. Surprisingly, it has been shown that the The device according to the invention also works with sulfur-containing diesel exhaust gases the combustion of fuel with a maximum concentration of 500 ppm sulfur.
  • Figure 1 is a sketch of a tubular device according to the invention for removing Soot particles shown in exhaust gas streams.
  • the device according to the invention essentially consists of one in the longitudinal direction extending center axis tubular inner first wire mesh filter 1, the has a catalytic coating to lower the soot ignition point temperature.
  • This first filter 1 is by means of a tubular perforated plate 3 from an adjacent and the first filter 1 in the longitudinal direction and radially enclosing second filter 2.
  • the second filter 2 is in turn radially surrounded by another perforated plate 3 in the longitudinal direction.
  • FIG. 2 shows a sketch of another tubular device for removal according to the invention represented by soot particles in exhaust gas streams.
  • the device according to the invention essentially consists of one in the longitudinal direction extending center axis tubular inner first wire mesh filter 1, the has a catalytic coating to lower the soot ignition point temperature.
  • the first filter is by means of a tubular perforated plate 3 from an adjacent one and the first filter 1 partially in the longitudinal direction and completely radially enclosing second filter 2 spaced.
  • the second filter 2 is in turn from another perforated plate 3 in the longitudinal direction surrounded radially.
  • the first to flow through is a filter with a wire mesh filter 1 filled tubular jacket 4. This special design shows unexpectedly high burn rates the soot particles and a correspondingly highly efficient conditioning of the exhaust gas.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP01127830A 2000-11-27 2001-11-22 Dispositif tubulaire pour la séparation et la combustion de particules d'échappement, et procédés pour l'élimination de ces particules, particulièrement d'échappement diesel Expired - Lifetime EP1209330B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10058824A DE10058824A1 (de) 2000-11-27 2000-11-27 Rohrförmige Vorrichtung zur Abscheidung und Verbrennung von Rußteilchen in Abgasströmen, insbesondere Dieselruß, und Verfahren zum Entfernen von Rußteilchen in Abgasströmen, insbesondere Dieselabgasen
DE10058824 2000-11-27

Publications (2)

Publication Number Publication Date
EP1209330A1 true EP1209330A1 (fr) 2002-05-29
EP1209330B1 EP1209330B1 (fr) 2004-09-08

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EP01127830A Expired - Lifetime EP1209330B1 (fr) 2000-11-27 2001-11-22 Dispositif tubulaire pour la séparation et la combustion de particules d'échappement, et procédés pour l'élimination de ces particules, particulièrement d'échappement diesel

Country Status (2)

Country Link
EP (1) EP1209330B1 (fr)
DE (2) DE10058824A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015251A1 (fr) * 2002-08-02 2004-02-19 Emitec Gesellschaft Für Emissionstechnologie Mbh Filtre pour gaz d'echappement et procede d'epuration de gaz d'echappement
WO2008118275A1 (fr) * 2007-03-27 2008-10-02 Caterpillar Inc. Filtre antiparticule de gaz d'échappement pour un système de moteur de machine et un procédé d'assemblage de ce filtre
US9689354B1 (en) 2016-01-19 2017-06-27 Ford Global Technologies, Llc Engine exhaust gas recirculation system with at least one exhaust recirculation treatment device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10309862B4 (de) * 2003-03-06 2006-07-13 Rhodius Gmbh Vorrichtung zum Entfernen von Schadstoffen aus einem Abgas einer Brennkraftmaschine, insbesondere eines Dieselmotors

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600562A (en) * 1984-12-24 1986-07-15 Texaco Inc. Method and apparatus for filtering engine exhaust gas
US5067319A (en) * 1989-02-15 1991-11-26 Steyr-Daimler-Puch Ag System for purifying the exhaust gases of diesel engines
DE4207005A1 (de) * 1991-03-06 1992-09-10 Nissan Motor Abgasreiniger
EP0341832B1 (fr) 1988-05-13 1996-01-10 Johnson Matthey Inc. Traitement de gaz d'échappement de moteur diesel
EP1065352A2 (fr) * 1999-06-29 2001-01-03 Sumitomo Electric Industries, Ltd. Pièges à particules pour moteur Diesel
DE19933442A1 (de) * 1999-07-16 2001-01-18 Mann & Hummel Filter Partikelfilter mit einem Filtermedium und einem Katalysator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012719A1 (de) * 1990-04-21 1991-10-24 Roggenkamp Karl Heinz Verfahren zur beseitigung von schaedlichen bestandteilen aus abgasen von brennkraftmaschinen, insbesondere von dieselmotoren und vorrichtung zur durchfuehrung des verfahrens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600562A (en) * 1984-12-24 1986-07-15 Texaco Inc. Method and apparatus for filtering engine exhaust gas
EP0341832B1 (fr) 1988-05-13 1996-01-10 Johnson Matthey Inc. Traitement de gaz d'échappement de moteur diesel
US5067319A (en) * 1989-02-15 1991-11-26 Steyr-Daimler-Puch Ag System for purifying the exhaust gases of diesel engines
DE4207005A1 (de) * 1991-03-06 1992-09-10 Nissan Motor Abgasreiniger
EP1065352A2 (fr) * 1999-06-29 2001-01-03 Sumitomo Electric Industries, Ltd. Pièges à particules pour moteur Diesel
DE19933442A1 (de) * 1999-07-16 2001-01-18 Mann & Hummel Filter Partikelfilter mit einem Filtermedium und einem Katalysator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015251A1 (fr) * 2002-08-02 2004-02-19 Emitec Gesellschaft Für Emissionstechnologie Mbh Filtre pour gaz d'echappement et procede d'epuration de gaz d'echappement
US7347042B2 (en) 2002-08-02 2008-03-25 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Exhaust gas filter and method for cleaning an exhaust gas
KR101009197B1 (ko) * 2002-08-02 2011-01-19 에미텍 게젤샤프트 퓌어 에미시온스테크놀로기 엠베하 배기 가스 필터 및 배기 가스 정화 방법
WO2008118275A1 (fr) * 2007-03-27 2008-10-02 Caterpillar Inc. Filtre antiparticule de gaz d'échappement pour un système de moteur de machine et un procédé d'assemblage de ce filtre
US9689354B1 (en) 2016-01-19 2017-06-27 Ford Global Technologies, Llc Engine exhaust gas recirculation system with at least one exhaust recirculation treatment device

Also Published As

Publication number Publication date
DE50103526D1 (de) 2004-10-14
DE10058824A1 (de) 2002-06-13
EP1209330B1 (fr) 2004-09-08

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