DE2329197B2 - Device for removing nitrogen oxides from exhaust gases - Google Patents

Device for removing nitrogen oxides from exhaust gases

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Publication number
DE2329197B2
DE2329197B2 DE2329197A DE2329197A DE2329197B2 DE 2329197 B2 DE2329197 B2 DE 2329197B2 DE 2329197 A DE2329197 A DE 2329197A DE 2329197 A DE2329197 A DE 2329197A DE 2329197 B2 DE2329197 B2 DE 2329197B2
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Germany
Prior art keywords
separator
chamber
nitrogen oxides
exhaust gases
removing nitrogen
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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
DE2329197A
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German (de)
Other versions
DE2329197A1 (en
DE2329197C3 (en
Inventor
Katashi Kamakura Kanagawa Aoi (Japan)
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Individual
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Publication of DE2329197A1 publication Critical patent/DE2329197A1/en
Publication of DE2329197B2 publication Critical patent/DE2329197B2/en
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Publication of DE2329197C3 publication Critical patent/DE2329197C3/en
Expired 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
    • F01N3/08—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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8631—Processes characterised by a specific device
    • 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
    • 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
    • F01N3/037—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 inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
    • 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
    • F01N3/038—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 perforated plates defining expansion chambers associated with condensation and collection chambers, e.g. for adiabatic expansion of gases and subsequent collection of condensed liquids
    • 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
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2889—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with heat exchangers 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • 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

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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)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Entfernen von Stickoxiden aus Abgasen.The invention relates to a device for removing nitrogen oxides from exhaust gases.

Stickoxide tragen bekanntlich in sehr starkem Maße zu der als fotochemischer Smog bekannten Form der Luftverschmutzung in städtischen Bereichen bei. Die Ursache für das Entstehen von fotochemischem Smog liegt wahrscheinlich im Vorhandensein von aromatischen Kohlenwasserstoffen, wie Benzol und Toluol im Benzin, auf Grund dessen die Verbrennungsabgase wie auch die bei verschiedenen industriellen Verfahren gebräuchlichen Stickstoffspülungen anfallenden Abgase dann Stickoxide, wie NO, NO2 und N2O3, enthalten. Das auf Grund seiner instabilen chemischen Eigenschaften eine besonders gefährliche Komponente der Luftverschmutzung darstellende Stickstoffmonoxid (NO) ist darüber hinaus auch besonders schwierig zu beseitigen.As is well known, nitrogen oxides contribute to a very large extent to the form of the known as photochemical smog Air pollution in urban areas. The cause of the creation of photochemical smog is likely due to the presence of aromatic hydrocarbons such as benzene and toluene in the Gasoline, due to which the combustion exhaust gases as well as those used in various industrial processes Nitrogen purging resulting exhaust gases then contain nitrogen oxides, such as NO, NO2 and N2O3. Due to its unstable chemical properties, this is a particularly dangerous component of the In addition, nitrogen monoxide (NO), which is polluting, is also particularly difficult to obtain remove.

Aus der DT-AS 10 40 003 ist ein Verfahren zur Behandlung von Restgasen der Salpetersäure-Herstellung zur Abscheidung der darin enthaltenden Stickoxide bekannt, bei dem ein NO/NO2-haltiges Gasgemisch bereits vor der ersten Berührung mit Erdalkalioxiden, -hydroxiden oder -karbonaten, insbesondere mit entsprechenden Kalziumverbindungen, innerhalb eines Temperaturbereichs zwischen 5 und 4O0C katalytisch mit Aktivkohle behandelt wird. Wesentlich ist bei diesem bekannten Verfahren, daß der H2O-Partialdruck während der Behandlung mit Aktivkohle nicht zu hoch liegt, da sonst die erwünschte Oxydation des NO zu N2O3 nur in geringem Ausmaß auftreten würde. In Verbindung mit Anwendungsbeispielen zur Ausführung des Verfahrens werden dabei Aktivkohletürme, Kalziumoxid enthaltende Wirbelschichttürme sowie Wassersättiger erwähnt, ohne daß jedoch eine besondere Vorrichtung zur Durchführung des Verfahrens angegeben würde.From DT-AS 10 40 003 a process for the treatment of residual gases from nitric acid production for the separation of the nitrogen oxides contained therein is known, in which a gas mixture containing NO / NO2 even before the first contact with alkaline earth oxides, hydroxides or carbonates, in particular with corresponding calcium compounds, is catalytically treated with activated carbon within a temperature range between 5 and 40 0 C. In this known process, it is essential that the H2O partial pressure is not too high during the treatment with activated carbon, since otherwise the desired oxidation of the NO to N2O3 would only occur to a small extent. Activated carbon towers, fluidized bed towers containing calcium oxide and water saturators are mentioned in connection with application examples for carrying out the process, but without specifying a special device for carrying out the process.

Aufgabe der Erfindung ist es, eine neue Vorrichtung zum Entfernen von Stickoxiden aus Abgasen zu schaffen, mit der bei geringem Anlageaufwand eine wirksame Entfernung aller Stickoxide möglich ist.The object of the invention is to create a new device for removing nitrogen oxides from exhaust gases, with which an effective removal of all nitrogen oxides is possible with little system effort.

Diese Aufgabe ist bei einer Vorrichtung der genannten Art gemäß der Erfindung gelöst durch eine Katalysatorsäule mit einem Abgaseinlaß am unteren Ende, einer Heizkammer, einer Kaialysatorkammer und einem Abgasauslaß am oberen Ende und durch einen mit meinem vorderen Ende mit dem Abgasauslaß der Kaialysatorsäule verbundenen Abscheider mit einer Expansionskammer, einer Kondensationskammer, einer ein wärmebeständiges Material enthaltenden FiI-lerkarnmer. einem in axialer Richtung durch den Abscheider verlaufenden Kühlungs- und Lüftungsrohr, einer in der Expansionskammer des Abscheiders angeordnete Düse /um Versprühen einer Waschflüssigkeit, einer im unteren Teil des Abscheiders angeordneten Abflußleitung zum Austragen der verunreinigten Waschflüssigkeit aus dem Abscheider und einem Gasauslaß am hinteren Endes des Abscheiders.This object is achieved in a device of the type mentioned according to the invention by a catalyst column with an exhaust gas inlet at the lower end, a heating chamber, a Kaialysatorkammer and an exhaust outlet at the upper end and through one with my front end to the exhaust outlet of the Separator connected to a caialyzer column with an expansion chamber, a condensation chamber, a filing chamber containing a heat-resistant material. a cooling and ventilation pipe running through the separator in the axial direction, a nozzle arranged in the expansion chamber of the separator / to spray a washing liquid, a discharge line arranged in the lower part of the separator for discharging the contaminated Washing liquid from the separator and a gas outlet at the rear end of the separator.

Mit Hilfe dieser Vorrichtung ist ein sicheres Abscheiden der Stickoxide möglich, wodurch eine wesentliche Verringerung der Luftverschmutzung mit Hilfe der einen sehr einfachen Aufbau und damit nur geringe Herstellungskosten aufweisenden neuen Vorrichtung möglich ist.With the help of this device a safe separation of nitrogen oxides is possible, whereby an essential Reducing air pollution with the help of a very simple structure and therefore only low Manufacturing costs having new device is possible.

Im folgenden ist ein Ausführungsbeispiel der Erfindung an Hand der Zeichnung beschrieben, deren Figur eine Schnittansicht der Vorrichtung zeigt.The following is an embodiment of the invention described with reference to the drawing, the figure of which shows a sectional view of the device.

Eine Katalysatorsäule 1 hat an ihrem unteren Teil einen Abgascinlaß 2 und einen in eine Heizkammer 3 und eine Katalysatorkammer 4 unterteilten Innenraum. In der Heizkammer 3 ist ein Heizkörper 5 eingesetzt, und die Katalysatorkammer 4 enthält einen Katalysator 6, etwa Aktivkohle. Bei der Durchströmung der Katalysatorsäule 1 werden alle Stickoxide zu NO2 oder NOi umgewandelt, worauf die Abgase einem an die Katalysatorkammer 4 angeschlossenen Abscheider 7 zuströmen.A catalyst column 1 has an exhaust gas inlet 2 and one into a heating chamber 3 at its lower part and a catalyst chamber 4 partitioned interior. In the heating chamber 3, a heating element 5 is used, and the catalyst chamber 4 contains a catalyst 6 such as activated carbon. When flowing through the catalyst column 1, all nitrogen oxides are converted to NO2 or NOi, whereupon the exhaust gases are sent to the Catalyst chamber 4 connected to the separator 7 flow.

Im Abscheider 7 werden die Abgase durch Ausfiltern, Entschwefelung und Verflüssigung gereinigt. Dabei findet eine Zyklonwirkung, Expansion und der Entzug von Staubteilchen mittels eines Filtermaterials Anwendung. Der Innenraum des Abscheiders 7 ist in eine Expansionskammer a, eine Kondensationskammer b und eine Filterkammer c unterteilt und in Axialrichtung von einem perforierten Verbindungsrohr 8 durchsetzt. Innerhalb des Verbindungsrohrs 8 verläuft in Axialrichtung ein Kühlungs- und Lüftungsrohr 9 zur Verbesserung der Wirksamkeit des Abscheiders. Zum Durchblasen des Belüftungsrohres 9 mit Luft ist ein Gebläse 10 vorgesehen. Eine im Abscheider angeordnete Düse 11 dient zum Versprühen von Wasser oder einer NaOH-Lösung zum Beseitigen der Stickoxide. Beim Durchgang der Abgase durch die Kammern a, b und c des Abscheiders werden NO2, NO3 sowie verflüssigte Bestandteile der Abgase in dem Wasser bzw. der NaOH-Lösung gelöst, worauf dieses bzw. diese über ein Ablaßrohr 12 abgeführt und in einem Behälter 13 gesammelt werden. Auf ihrem Weg über den Abscheider 7 zum Behälter 13 sind die Stickoxide in Form von Nitrationen und Nitratresten in der Flüssigkeit gelöst.In the separator 7, the exhaust gases are cleaned by filtering, desulfurization and liquefaction. A cyclone effect, expansion and the removal of dust particles by means of a filter material are used. The interior of the separator 7 is divided into an expansion chamber a, a condensation chamber b and a filter chamber c and penetrated by a perforated connecting pipe 8 in the axial direction. A cooling and ventilation pipe 9 runs in the axial direction within the connecting pipe 8 to improve the effectiveness of the separator. A blower 10 is provided for blowing air through the ventilation pipe 9. A nozzle 11 arranged in the separator is used to spray water or an NaOH solution to remove the nitrogen oxides. When the exhaust gases pass through chambers a, b and c of the separator, NO2, NO3 and liquefied components of the exhaust gases are dissolved in the water or the NaOH solution, whereupon this or these are discharged via a drain pipe 12 and collected in a container 13 will. On their way via the separator 7 to the container 13, the nitrogen oxides are dissolved in the liquid in the form of nitrate ions and nitrate residues.

Bei der neuen Vorrichtung wird also das in den zuvor erhitzten Abgasen enthaltene Stickstoffmonoxid beim Durchgang durch die Katalysatorsäule in NO2 und NO3 umgewandelt, worauf das so behandelte Abgas unter Zyklonwirkung, Expansion und Ausfilterung von Staubteilchen mittels eines hitzebeständigen Materials den Abscheider durchströmt, während in diesem Wasser oder eine NaOH-Lösung versprüht wird. Dabei gehen die Stickstoffe in Form von Nitratresten und Nitrationen in der Flüssigkeit in Lösung und werden in dieser Form aus dem Abscheider ausgetragen.With the new device, the nitrogen monoxide contained in the previously heated exhaust gases is used Passage through the catalyst column in NO2 and NO3 converted, whereupon the exhaust gas treated in this way under cyclone action, expansion and filtering out of dust particles by means of a heat-resistant material flows through the separator, while in this water or a NaOH solution is sprayed. The nitrogen goes in the form of nitrate residues and nitrate ions in the liquid in solution and are discharged from the separator in this form.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Vorrichtung zum Entfernen von Stickoxiden aus Abgasen, gekennzeichnet durch eine Kaialysatorsäule (1) mit einem Abgaseinlaß (2) am unteren Ende, einer Heizkammer (3), einer Katalysatorkammer (4) und einem Abgasauslaß am oberen Ende und durch einen mit seinem vorderen Ende mit dem Abgasauslaß der Katalysatorsäulc verbundenen Abscheider (?) mit einer Expansionskammer (a). einer Kondensationskammer (b), einer ein wärmebeständiges Material enthaltenden Filterkammer (c), einem in axialer Richtung durch den Abscheider verlaufenden Kühlungs- und Lüflungsrohr (9) einer in der Expansionskammer (a) des Abscheiders angeordnete Düse (U) zum Versprühen einer Waschflüssigkeit, einer im unteren Teil des Abscheiders angeordneten Abflußleitung (12) zum Austragen der verunreinigten Waschflüssigkeil aus dem Abscheider und einem Gasauslaß am hinteren Ende des Abscheiders.Device for removing nitrogen oxides from exhaust gases, characterized by a Kaialysatorsäule (1) with an exhaust gas inlet (2) at the lower end, a heating chamber (3), a catalyst chamber (4) and an exhaust gas outlet at the upper end and one with its front end The separator (?) connected to the exhaust gas outlet of the catalyst column with an expansion chamber (a). a condensation chamber (b), a filter chamber (c) containing a heat-resistant material, a cooling and ventilation pipe (9) running axially through the separator, a nozzle (U) arranged in the expansion chamber (a) of the separator for spraying a washing liquid, a discharge line (12) arranged in the lower part of the separator for discharging the contaminated washing liquid wedge from the separator and a gas outlet at the rear end of the separator.
DE19732329197 1972-06-10 1973-06-07 Device for removing nitrogen oxides from exhaust gases Expired DE2329197C3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP47057314A JPS4917366A (en) 1972-06-10 1972-06-10
JP5731472 1972-06-10

Publications (3)

Publication Number Publication Date
DE2329197A1 DE2329197A1 (en) 1974-01-03
DE2329197B2 true DE2329197B2 (en) 1975-10-23
DE2329197C3 DE2329197C3 (en) 1976-08-12

Family

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310018A1 (en) * 1983-03-19 1984-09-20 Wilhelm 8800 Ansbach Buschack Flue gas cassette system
DE3606080A1 (en) * 1986-02-26 1987-08-27 Kloeckner Humboldt Deutz Ag Emission control device for the exhaust gases of diesel engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3310018A1 (en) * 1983-03-19 1984-09-20 Wilhelm 8800 Ansbach Buschack Flue gas cassette system
DE3606080A1 (en) * 1986-02-26 1987-08-27 Kloeckner Humboldt Deutz Ag Emission control device for the exhaust gases of diesel engines

Also Published As

Publication number Publication date
GB1396839A (en) 1975-06-04
JPS4917366A (en) 1974-02-15
DE2329197A1 (en) 1974-01-03
FR2187397A1 (en) 1974-01-18
FR2187397B1 (en) 1976-11-12

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