DE3722636A1 - Apparatus for exhaust gas and flue gas purification with or without filtering media, also for retaining, e.g., additives and catalysts - Google Patents

Apparatus for exhaust gas and flue gas purification with or without filtering media, also for retaining, e.g., additives and catalysts

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Publication number
DE3722636A1
DE3722636A1 DE19873722636 DE3722636A DE3722636A1 DE 3722636 A1 DE3722636 A1 DE 3722636A1 DE 19873722636 DE19873722636 DE 19873722636 DE 3722636 A DE3722636 A DE 3722636A DE 3722636 A1 DE3722636 A1 DE 3722636A1
Authority
DE
Germany
Prior art keywords
exhaust gas
exhaust
honeycomb
gas flow
catalysts
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.)
Withdrawn
Application number
DE19873722636
Other languages
German (de)
Inventor
Des Erfinders Auf Nennung Verzicht
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Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from DE19863601434 external-priority patent/DE3601434A1/en
Application filed by Individual filed Critical Individual
Priority to DE19873722636 priority Critical patent/DE3722636A1/en
Publication of DE3722636A1 publication Critical patent/DE3722636A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • F01N3/0214—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 filters comprising movable parts, e.g. rotating 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
    • 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
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent 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
    • 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
    • F01N13/14—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 thermal insulation
    • 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
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
    • F01N2370/04—Zeolitic 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
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Published without abstract.

Description

Graphit- oder Feinkeramik-Hohlkörper werden engobiert, vor­ zugsweise mit einer Engobe mit katalytisch aktivem Molekular­ sieb und katalytisch wirksamen Metallen oder nur mit kata­ lytisch wirksamen Metall.Graphite or fine ceramic hollow bodies are engobed, before preferably with an engobe with a catalytically active molecular sieve and catalytically active metals or only with kata active metal.

Erfindungsgemäß werden so die Nachteile des Standes der Technik behoben, nämlich die mangelnde Temperaturwechselbeständigkeit und die Vergiftbarkeit von Abgasreinigungskomponenten im Abgasstrom und Einbauambiente.The disadvantages of the prior art are thus according to the invention fixed, namely the lack of resistance to temperature changes and the toxicity of exhaust gas cleaning components in the Exhaust gas flow and installation atmosphere.

Im Bild 1 ist dargestellt, wie die Funktion des vorzugsweise aus gering wärmeleitenden Materialien hergestellten Katalysa­ torgehäuses ist. Der vorzugsweise sogenannte Drehwegkatalysator ist in seinem katalytisch aktiven Teil mit vorzugsweise planemet­ risch gleichgroßen Anströmflächen unterschiedlicher Geometrie in einer gemeinsamen Kubatur eingefügt, wobei vorzugsweise die Denox-Stufe gleichgroßes Volumen im Außenring der Kubatur be­ sitzt wie das Volumen des Innenzylinders, vorzugsweise als CO-, C n - Hm-Katalysatorteil gedacht in der NSCR-Technologieanwendung. Figure 1 shows how the function of the catalyst housing, which is preferably made of low heat-conducting materials, is. The preferably so-called rotary catalytic converter is inserted in its catalytically active part with preferably planemetrically equal inflow surfaces of different geometries in a common cubature, the Denox stage preferably having the same volume in the outer ring of the cubature as the volume of the inner cylinder, preferably as CO, C n - Hm catalyst part intended for NSCR technology applications.

Die beiden Volumen können aber auch nur für vorzugsweise eine NO x -Konversionsstufe ausgebildet sein, in der SCR- oder NSCR- Technologie.However, the two volumes can also be designed only for preferably one NO x conversion stage, in SCR or NSCR technology.

Die Glocke, in der die aktive Katalysatorkubatur eingefügt ist, dient vorzugsweise auch als Abgasstromumlenkung. Erfindungsgemäß bilden die aktiven Katalysatorkubatur in der Glocke und das Segmentabgaseintrittsunterteil und das konzen­ trische Austrittsteil mit dem vorzugsweise formschlüssigen Vierkant im zylindrischen Zentrum des gereinigten Abgasaustritts den Funktionsteil. Vorzugsweise ist Glocke und Unterteil aus nicht wärmeleitendem Keramikmaterial.The bell in which the active catalyst cubicle is inserted preferably also serves as an exhaust gas deflection. According to the invention form the active catalyst in the Bell and the segment exhaust inlet lower part and the conc trical outlet part with the preferably positive  Square in the cylindrical center of the cleaned exhaust outlet the functional part. The bell and lower part are preferably made of non heat conductive ceramic material.

Um eine effektive katalytische Entstickung zu erreichen, kann vorzugsweise mit einer wäßrigen Harnstofflösungseinspritzung eine höhere Umweltrelevanz erzielt werden.To achieve effective catalytic denitrification, preferably with an aqueous urea solution injection a higher environmental relevance can be achieved.

Erfindungsgemäß kann nach Bild 1 zwischen den Positionen 1 und 2 das formschlüssig drehbare Funktionsteil, Glocke und Unterteil, gemeinsam gedreht werden, vorzugsweise auch so, daß die Funktion des katalytisch wirksamen Volumens umgekehrt werden kann, aber auch gebypasst werden kann, durch die vorzugsweise formschlüssige Verbindung über den Vierkant von Unterteil und Glocke. According to Figure 1 between positions 1 and 2, the positively rotatable functional part, bell and lower part, can be rotated together, preferably so that the function of the catalytically active volume can be reversed, but can also be bypassed by the preferably form-fitting connection over the square of the lower part and bell.

  • Bildbeschreibung  1 Abgasreinigungsstutzen
     2 Reingasaustrittsstutzen
     3 Perforationsstützkorb für Filterzurückhaltung mit Abgaseintrittsringverteilung, Wabenkörper
     4 Zentralrohr für Bowdenzug zur Klappenstellung
     5 Kappe oder Katalysatorglocke
     6 Dichtung
     7 Klappenstellung, Katalysator ist gebypasst, das Abgas geht direkt ungefiltert ins Freie
     8 Klappenstellung, Katalysator ist geöffnet und der direkte Abgasdurchtritt ist versperrt
     9 Pulverkatalysatorzurückhaltung, Feinfilter, Wabenhohlkörper
    10 Dichtung
    11 Kappen- oder Katalysatorglockenflansch
    12 Unterteil, ähnlich Umwälzpumpengehäuse mit Flansch
    13 Selektivanschlußstutzen oder Unterteilinspektionsöffnung, Lambdasonde
    14 Abschlußkappe mit Dichtung
    15 Bowdenzug
    16 Dichtung
    17 Abschlußkappe mit Dichtung aus Kronenmutter
    18 Verteilerblech
    19 Pfeil für Katalysatoreinfüllung oder Additiveinfüllung
    20 Abgasstrom (roh)
    21 Pfeil Abgasstrom (Partiell gereinigt)
    22 Pulver-Mehl-Katalysator oder Mehl-Additiv Engobenkatalysatoroberfläche
    23 Raum für das Reduktionsmaterial Reduktionsraum
    24 Raum für den Eintritt der gereinigten Gase von NO x
    28 Lochsegment
    29 Abdichtsegment
    30 Verstellhebel / hier Verbindungsgabel zum Bowdenzug
    31 Verstellhebel
    32 Anschlag rechts
    33 Anschlag links
    34 Drehwinkelbegrenzer
    35 Überwurfkronenmutter
    36 O-Ringdichtung
    37 Arretierstiftabzugsmutter
    38 Arretierkegelstift.    Description of the picture 1 flue gas cleaning nozzle
    2 clean gas outlet connections
    3 perforation support basket for filter retention with exhaust gas inlet ring distribution, honeycomb body
    4 central tube for Bowden cable for flap position
    5 cap or catalyst bell
    6 seal
    7 Flap position, catalytic converter is bypassed, the exhaust gas goes directly outside unfiltered
    8 Damper position, catalytic converter is open and direct exhaust gas passage is blocked
    9 Powder catalyst retention, fine filter, honeycomb hollow body
    10 seal
    11 cap or catalyst bell flange
    12 lower part, similar to circulation pump housing with flange
    13 Selective connecting piece or lower part inspection opening, lambda probe
    14 end cap with seal
    15 Bowden cable
    16 seal
    17 End cap with gasket made from a crown nut
    18 distributor plate
    19 Arrow for catalyst filling or additive filling
    20 exhaust gas flow (raw)
    21 Arrow exhaust gas flow (partially cleaned)
    22 Powder-flour catalyst or flour additive
    23 Space for the reduction material Reduction space
    24 space for the entry of the cleaned gases of NO x
    28 hole segment
    29 sealing segment
    30 adjustment lever / here connecting fork to Bowden cable
    31 adjustment lever
    32 hinged right
    33 hinged left
    34 angle limiter
    35 cap nut
    36 O-ring seal
    37 locking pin trigger nut
    38 locking taper pin.

Claims (4)

1. Vorrichtung zum Auspuff- und Rauchgasreinigen, mit oder ohne filternde Medien, auch zum Zurückhalten z. B. von Additiven und Katalysatoren, erfindungsgemäß dadurch gekennzeichnet, daß zwischen Rohgaseintritt und Reingasaustritt vorzugs­ weise nach Bild 1 das Funktionsteil um seine konzentrische Mittelachse drehbar und die Gasstromrichtung durch den katalytisch wirksam engobierten Wabenscherben umkehrbar oder bypassbar ist.1. Device for exhaust and flue gas cleaning, with or without filtering media, also for holding back z. B. additives and catalysts, according to the invention, characterized in that between the raw gas inlet and clean gas outlet preference, as shown in Figure 1, the functional part rotatable about its concentric central axis and the gas flow direction through the catalytically effective engobed honeycomb fragments is reversible or bypassable. 2. nach Anspruch 1, dadurch gekennzeichnet, daß das Segmentunter­ teil und die Glocke vorzugsweise aus nicht wärmeleitendem Feinkeramikmaterial besteht. Die Anschlüsse nach Bild 1, Pos. 1 und 2, können aus vorzugsweise mechanisch stabilem Metall sein.2. according to claim 1, characterized in that the segment lower part and the bell preferably consists of non-heat-conductive fine ceramic material. The connections according to figure 1, items 1 and 2, can be made of preferably mechanically stable metal. 3. nach Anspruch 1 und 2, dadurch gekennzeichnet, daß planemetrisch gleich große Anströmflächen eines vorzugsweise Wabenscherbens im Gegenstrom vom vorzugsweise gleichen Abgasstrom durchströmt werden, in vorzugsweise der Folge: der Abgasstrom wird in einem Teil des gleichen Wabenscherbens entstickt und im Gegenstrom der gleichen Wabenscherben, aber anderen Teilvolumen, werden die Cn, Hm- CO-Abgasteile beseitigt. 3. according to claim 1 and 2, characterized in that planemetric equally large inflow areas of a preferably honeycomb body Flows through in countercurrent, preferably the same exhaust gas flow preferably in the sequence: the exhaust gas flow is in one Part of the same honeycomb body embroidered and in countercurrent the same honeycomb fragments, but different partial volumes the Cn, Hm-CO exhaust parts eliminated.   4. nach Anspruch 1, 2 und 3, dadurch gekennzeichnet, daß auf einem Wabenscherben vorzugsweise zwei unterschiedliche katalytisch aktiven Engoben aufgebracht sind.4. according to claim 1, 2 and 3, characterized in that on a Honeycomb fragments preferably two different catalytically active engobes are upset.
DE19873722636 1986-01-20 1987-07-09 Apparatus for exhaust gas and flue gas purification with or without filtering media, also for retaining, e.g., additives and catalysts Withdrawn DE3722636A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873722636 DE3722636A1 (en) 1986-01-20 1987-07-09 Apparatus for exhaust gas and flue gas purification with or without filtering media, also for retaining, e.g., additives and catalysts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863601434 DE3601434A1 (en) 1986-01-20 1986-01-20 Apparatus and process for exhaust gas purification and catalysis from Carnot cycle engines and furnaces, and also for domestic fireplaces
DE19873722636 DE3722636A1 (en) 1986-01-20 1987-07-09 Apparatus for exhaust gas and flue gas purification with or without filtering media, also for retaining, e.g., additives and catalysts

Publications (1)

Publication Number Publication Date
DE3722636A1 true DE3722636A1 (en) 1989-01-19

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ID=25840235

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873722636 Withdrawn DE3722636A1 (en) 1986-01-20 1987-07-09 Apparatus for exhaust gas and flue gas purification with or without filtering media, also for retaining, e.g., additives and catalysts

Country Status (1)

Country Link
DE (1) DE3722636A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29605508U1 (en) * 1995-09-18 1996-06-20 Franz Eder Maschinenfabrik GmbH & Co KG, 84048 Mainburg Filter or catalyst device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29605508U1 (en) * 1995-09-18 1996-06-20 Franz Eder Maschinenfabrik GmbH & Co KG, 84048 Mainburg Filter or catalyst device
US6203763B1 (en) 1995-09-18 2001-03-20 Anton Theiler Filter or catalytic-converter device

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