EP0973615A1 - Method for cleaning waste process gases containing dust - Google Patents

Method for cleaning waste process gases containing dust

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Publication number
EP0973615A1
EP0973615A1 EP98912138A EP98912138A EP0973615A1 EP 0973615 A1 EP0973615 A1 EP 0973615A1 EP 98912138 A EP98912138 A EP 98912138A EP 98912138 A EP98912138 A EP 98912138A EP 0973615 A1 EP0973615 A1 EP 0973615A1
Authority
EP
European Patent Office
Prior art keywords
dust
exhaust gas
wet electrostatic
electrostatic precipitator
wet
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
EP98912138A
Other languages
German (de)
French (fr)
Other versions
EP0973615B1 (en
Inventor
Christof Lanzerstorfer
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0973615A1 publication Critical patent/EP0973615A1/en
Application granted granted Critical
Publication of EP0973615B1 publication Critical patent/EP0973615B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/16—Plant or installations having external electricity supply wet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/36—Controlling flow of gases or vapour

Definitions

  • the invention relates to a method for cleaning dust-laden process exhaust gases in a wet electrostatic precipitator.
  • wet electrostatic precipitators are aggregates for dust separation, which are increasingly used for fine dust separation.
  • the design of electrostatic filters is usually based on the German equation.
  • the speed of migration is dependent on several parameters, such as dust particle size, dust composition and exhaust gas speed.
  • Wet electrostatic precipitators are usually designed for exhaust gas flow velocities of 1.5 m / s to 2 m / s. For example, due to the small particle sizes, migration speeds on the precipitation electrode surface of approx. 10 cm / s result for the dust removal system. This low exhaust gas velocity requires an increased outlay for flow distribution devices on the inlet and outlet sides in the filter in order to equalize the exhaust gas flow. Exhaust gas flow velocities of the order of magnitude of approximately 20 m / s usually occur within exhaust gas channels before and after the filter. This means an acceleration on the outlet side of the filter or a deceleration on the inlet side of the filter by a factor of approx. 10-13 each.
  • the object of the invention is to provide a method for cleaning dust-laden exhaust gases in a wet electrostatic precipitator, which is characterized in that the exhaust gas flow rate is set to a value so that the highest possible rate of migration occurs and at the same time the disadvantages of the prior art, in particular complex flow equalization devices and large precipitation electrode areas can be avoided.
  • wet electrostatic precipitators in the sense of the invention are understood to mean both those in which the exhaust gas is completely or almost completely saturated with water vapor before entering the filter, and those in which the exhaust gas has a significant undersaturation of water vapor when it enters the filter. In the latter wet electrostatic precipitators, the precipitation electrodes must therefore be cleaned by additional water injection.
  • the subject invention which is characterized in that the exhaust gas flow rate is set to a value of 4 m / s to 9 m / s.
  • the exhaust gas flow rate is set to a value of 4 m / s to 9 m / s.
  • the precipitation electrode area and thus also the weight of the precipitation electrode can be reduced in relation to the increase in the rate of migration while the efficiency remains the same. Furthermore, the effort for flow equalization devices on the inlet and outlet side of the filter is thus minimized (deceleration or acceleration only by a factor of approx. 2-5). The wet electrostatic precipitator is reduced accordingly, which means that the investment costs are also lower.
  • Fig. 1 Graph of exhaust gas flow velocity vs. Migration speed
  • Fig. 2 Diagram of grain size classes vs. accumulated concentrations
  • the migration speed increases approximately linearly up to exhaust gas speeds of approx. 6 m / s; at higher speeds, the curve becomes flatter.
  • the range of 4 m / s to 9 m / s according to the invention there is hardly any undesired drop detachment.
  • the dust-laden raw gas from a sintering plant is first passed through a scrubber. Larger particles (> 16 ⁇ m) are pre-separated and the gas is enriched or saturated with water vapor. The fine separation takes place in the wet electrostatic precipitator described above.

Landscapes

  • Electrostatic Separation (AREA)
  • Treating Waste Gases (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Lasers (AREA)

Abstract

The invention relates to a method for cleaning waste process gases containing water vapour and dust, in a wet-type electrostatic filter. According to this method, the gases which pass through said wet-type electrostatic filter are charged in a space between one or several emission electrodes and one or several collecting electrodes and the particles of dust are precipitated on the collecting electrode(s). The invention is characterized in that the speed at which the waste gases pass through the wet-type electrostatic filter is set at a value of 4 m/s to 9 m/s.

Description

WO 98/46359 . γ _ PCT/AT98/00088 WO 98/46359. γ _ PCT / AT98 / 00088
Verfahren zur Reinigung von staubbeladenen ProzeßabgasenProcess for cleaning dust-laden process gases
Die Erfindung betrifft ein Verfahren zur Reinigung von staubbeladenen Prozeßabgasen in einem Naßelektrofilter.The invention relates to a method for cleaning dust-laden process exhaust gases in a wet electrostatic precipitator.
Naßelektrofilter sind Aggregate zur Staubabscheidung, welche in zunehmendem Maße zur Feinstaubabscheidung eingesetzt werden. Die Auslegung von Elektrofiltern erfolgt zumeist nach der Deutsch-Gleichung.Wet electrostatic precipitators are aggregates for dust separation, which are increasingly used for fine dust separation. The design of electrostatic filters is usually based on the German equation.
Diese lautet: This is:
Bei den vorgegebenen Randbedingungen Staubabscheidegrad (Creir/Croh) und Abgasmengenstrom V bleibt als Parameter das Produkt aus Wanderungsgeschwindigkeit und Niederschlagselektrodenfläche (w.A), d.h. bei bekannter Wanderungsgeschwindigkeit des abzuscheidenden Staubes kann das Filter, insbesondere die notwendige Niederschlagselektrodenfläche, dimensioniert werden. Die Wanderungsgeschwindigkeit ist im übrigen von mehreren Parametern, wie Staubkorngröße, Staubzusammensetzung und Abgasgeschwindigkeit abhängig.Given the specified boundary conditions, the degree of dust separation (C re ir / C roh ) and the exhaust gas volume flow V, the product of the migration speed and the precipitation electrode area (wA) remains as a parameter, i.e. the filter, in particular the necessary precipitation electrode area, can be dimensioned if the dust migration speed is known. The speed of migration is dependent on several parameters, such as dust particle size, dust composition and exhaust gas speed.
Nach dem in der Literatur (Weber, E.; Brocke, W.; Apparate und Verfahren der industriellen Gasreinigung; Bd. 1; S. 352 - 353, sowie Parker K.R.; Applied Electrostatic Precipitation; Ist Edition; 1997; S. 128) beschriebenen theoretischen Modell erreicht man die maximale Wanderungsgeschwindigkeit bei Elektrofiltern bei Abgasströmungsgeschwindigkeiten im Bereich von 2,0 m/s bis 2,5 m/s. Bei höheren Gasgeschwindigkeiten tritt zunehmend Wiederaufwirbelung von bereits an der Niederschlagselektrode abgeschiedenen Partikeln auf und die Wanderungsgeschwindigkeit und damit der Abscheidegrad sinken.According to the literature (Weber, E .; Brocke, W .; Apparatus and Processes of Industrial Gas Purification; Vol. 1; pp. 352 - 353, and Parker KR; Applied Electrostatic Precipitation; Ist Edition; 1997; p. 128) The theoretical model described achieves the maximum migration speed with electrostatic filters at exhaust gas flow speeds in the range from 2.0 m / s to 2.5 m / s. At higher gas velocities, particles that have already been deposited on the precipitation electrode are re-whirled up and the rate of migration and thus the degree of separation decrease.
Bei Naßelektrofiltern existiert im Gegensatz zum trockenen Elektrofilter das Problem, daß bei höheren Abgasgeschwindigkeiten bereits abgeschiedener Staub wieder aufgewirbelt wird, praktisch nicht. Die Aufwärtsbewegung des Wandfilms tritt erst bei sehr hohen Abgasgeschwindigkeiten im Bereich von über 10 m/s auf. Der Austrag von Tropfen durch Ablösung aus dem Wandfilm ist theoretisch und je nach Wasserfilmdicke auch schon bei wesentlich geringeren Abgasgeschwindigkeiten möglich, trägt jedoch aufgrund der höchst wahrscheinlichen Wiederabscheidung der herausgelösten Tropfen nicht wesentlich zum Partikelaustrag bei.With wet electrostatic precipitators, in contrast to dry electrostatic precipitators, there is practically no problem that dust which has already been separated is whirled up again at higher exhaust gas velocities. The upward movement of the wall film only occurs at very high exhaust gas speeds in the range of over 10 m / s. The discharge of drops by detachment from the wall film is theoretically possible and, depending on the thickness of the water film, even at significantly lower exhaust gas speeds, but it contributes due to the high probable redeposition of the released drops does not significantly contribute to the particle discharge.
Es ist weiters aus der Literatur bekannt (s. Weber, E.; S. 360), daß die mittlere effektive Wanderungsgeschwindigkeit mit zunehmender Staubfeinheit sinkt.It is also known from the literature (see Weber, E .; p. 360) that the mean effective migration rate decreases with increasing dust fineness.
Naßelektrofilter werden üblicherweise auf Abgasströmungsgeschwindigkeiten von 1,5 m/s bis 2 m/s ausgelegt. Dabei ergeben sich beispielsweise für die Smteranlagenentstaubung wegen der kleinen Partikelgrößen Wanderungsgeschwindigkeiten auf der Niederschlagselektrodenfläche von ca. 10 cm/s. Diese niedrige Abgasgeschwindigkeit bedingt einen erhöhten Aufwand für Strömungsverteilungseinrichtungen ein- und austrittsseitig im Filter zur Vergleichmäßigung der Abgasströmung. So treten innerhalb von Abgaskanälen vor und nach dem Filter üblicherweise Abgasströmungsgeschwindigkeiten in der Größenordnung von etwa 20 m/s auf. Dies bedeutet eine Beschleunigung austrittsseitig des Filters, bzw. eine Verzögerung eintrittsseitig des Filters um jeweils eine Faktor von ca. 10-13.Wet electrostatic precipitators are usually designed for exhaust gas flow velocities of 1.5 m / s to 2 m / s. For example, due to the small particle sizes, migration speeds on the precipitation electrode surface of approx. 10 cm / s result for the dust removal system. This low exhaust gas velocity requires an increased outlay for flow distribution devices on the inlet and outlet sides in the filter in order to equalize the exhaust gas flow. Exhaust gas flow velocities of the order of magnitude of approximately 20 m / s usually occur within exhaust gas channels before and after the filter. This means an acceleration on the outlet side of the filter or a deceleration on the inlet side of the filter by a factor of approx. 10-13 each.
Die Aufgabe der Erfindung besteht nun darin, ein Verfahren zur Reinigung von staubbelasteten Abgasen in einem Naßelektrofilter bereitzustellen, welches dadurch gekennzeichnet ist, daß die Abgasströmungsgeschwindigkeit auf einen Wert eingestellt wird, so daß eine möglichst hohe Wanderungsgeschwindigkeit auftritt und gleichzeitig die Nachteile des Standes der Technik, insbesondere aufwendige Strömungsvergleichmäßigungseinrichtungen und große Niederschlagselektrodenflächen, vermieden werden.The object of the invention is to provide a method for cleaning dust-laden exhaust gases in a wet electrostatic precipitator, which is characterized in that the exhaust gas flow rate is set to a value so that the highest possible rate of migration occurs and at the same time the disadvantages of the prior art, in particular complex flow equalization devices and large precipitation electrode areas can be avoided.
Unter Naßelektrofiltera im Sinne der Erfindung werden dabei sowohl solche verstanden, bei denen das Abgas vor Eintritt in den Filter völlig oder fast völlig mit Wasserdampf gesättigt, als auch solche, bei denen das Abgas bei Eintritt in den Filter eine deutliche Untersättigung an Wasserdampf aufweist. Bei letzteren Naßelektrofiltern muß daher die Abreinigung der Niederschlagselektroden durch zusätzliche Wassereindüsung geschehen.Wet electrostatic precipitators in the sense of the invention are understood to mean both those in which the exhaust gas is completely or almost completely saturated with water vapor before entering the filter, and those in which the exhaust gas has a significant undersaturation of water vapor when it enters the filter. In the latter wet electrostatic precipitators, the precipitation electrodes must therefore be cleaned by additional water injection.
Diese Aufgabe wird durch die gegenständliche Erfindung gelöst, welche dadurch gekennzeichnet ist, daß die Abgasströmungsgeschwindigkeit auf einen Wert von 4 m/s bis 9 m/s eingestellt wird. Durch die Erhöhung der Strömungsgeschwindigkeit in diesen Bereich erhöht sich die Wanderungsgeschwindigkeit der Partikel gegenüber den Wanderungsgeschwindigkeiten bei derzeit üblichen Abgaströmungsgeschwindigkeiten von 1,5 m s bis 2 m s bei Naßelektrofiltem im Fall der Sinteranlagenentstaubung von etwa 10 cm/s auf über 40 cm/s.This object is achieved by the subject invention, which is characterized in that the exhaust gas flow rate is set to a value of 4 m / s to 9 m / s. By increasing the flow velocity in this area, the migration velocity of the particles increases compared to the migration velocity at currently usual exhaust gas flow velocities of 1.5 ms to 2 ms for wet electrostatic precipitators in the case of sintering system dedusting from about 10 cm / s to over 40 cm / s.
Dadurch kann bei gleichbleibendem Wirkungsgrad die Niederschlagselektrodenfläche und damit auch das Gewicht der Niederschlagselektrode im Verhältnis zur Steigerung der Wanderungsgeschwindigkeit verringert werden. Weiters wird der Aufwand für Strömungsvergleichmäßigungseinrichtungen ein- und austrittsseitig des Filters somit minimiert (Verzögerung bzw. Beschleunigung nur mehr um einen Faktor von ca. 2-5). Das Naßelektrofilter wird dadurch entsprechend verkleinert, wodurch auch die Investitionskosten geringer ausfallen.As a result, the precipitation electrode area and thus also the weight of the precipitation electrode can be reduced in relation to the increase in the rate of migration while the efficiency remains the same. Furthermore, the effort for flow equalization devices on the inlet and outlet side of the filter is thus minimized (deceleration or acceleration only by a factor of approx. 2-5). The wet electrostatic precipitator is reduced accordingly, which means that the investment costs are also lower.
Die Erfindung wird nun anhand der Zeichnungen 1 und 2 näher erläutert.The invention will now be explained in more detail with reference to drawings 1 and 2.
Fig.1 : Diagramm Abgasströmungsgeschwindigkeit vs. WanderungsgeschwindigkeitFig. 1: Graph of exhaust gas flow velocity vs. Migration speed
Fig. 2: Diagramm Korngrößenklassen vs. kumulierte KonzentrationenFig. 2: Diagram of grain size classes vs. accumulated concentrations
In der Fig. 1 sind in einem Koordinatensystem Meßpunkte 1, die bei Versuchen ermittelt wurden, dargestellt, wobei auf der Abszisse die Abgasströmungsgeschwindigkeit in m/s und auf der Ordinate die Wanderungsgeschwindigkeit der Partikel in cm/s aufgetragen ist.1 shows measurement points 1, which were determined in tests, in a coordinate system, the exhaust gas flow velocity in m / s being plotted on the abscissa and the migration velocity of the particles in cm / s on the ordinate.
Wie ersichtlich, steigt die Wanderungsgeschwindigkeit bis zu Abgasgeschwindigkeiten von ca. 6 m/s etwa linear an, bei höheren Geschwindigkeiten macht sich eine Abflachung der Kurve bemerkbar. Im erfindungsgemäßen Bereich von 4 m/s bis 9 m/s tritt noch kaum unerwünschte Tropfenablösung auf.As can be seen, the migration speed increases approximately linearly up to exhaust gas speeds of approx. 6 m / s; at higher speeds, the curve becomes flatter. In the range of 4 m / s to 9 m / s according to the invention, there is hardly any undesired drop detachment.
Fig. 2 zeigt in einem Koordinatensystem Summenkurven 2 von Teilchengrößenanalysen von in verschiedenen Versuchen vorliegenden Rohgasstäuben, wobei auf der Abszisse die Korngrößenklassen der Gaspartikel in μm, und auf der Ordinate die kumulierten Konzentrationen der jeweiligen Korngrößenklassen in Prozent aufgetragen sind. Wie aus den Kurven ersichtlich ist, liegt der überwiegende Anteil der Partikel in einem Kornband zwischen 0,03 μm und 4,0 μm vor.2 shows, in a coordinate system, cumulative curves 2 of particle size analyzes of raw gas dust present in various tests, the grain size classes of the gas particles in μm being plotted on the abscissa and the cumulative concentrations of the respective grain size classes in percent plotted on the ordinate. As can be seen from the curves, the majority of the particles are in a grain band between 0.03 μm and 4.0 μm.
Die Versuche, die zu den in Fig. 1 und Fig. 2 gezeigten Meßpunkten führten, wurden in einem Naßelektrofilter folgenden Aufbaus durchgeführt: Röhrenfilter mit WasserkühlungThe tests which led to the measuring points shown in FIGS. 1 and 2 were carried out in a wet electrostatic precipitator of the following structure: Tube filter with water cooling
Rohrdurchmesser innen 200 mmPipe diameter inside 200 mm
Anzahl Rohre 6 (zweistufig)Number of tubes 6 (two-stage)
Rohrlänge 2,6 mPipe length 2.6 m
Sprühelektrode StabSpray electrode rod
Spannung 45 KVVoltage 45 KV
Strom 17 mACurrent 17 mA
Das aus einer Sinteranlage stammende staubbeladene Rohgas wird zunächst durch einen Wäscher geführt. Es findet dabei eine Vorabscheidung größerer Partikel (> 16 μm) sowie eine Anreicherung bzw. Sättigung des Gases mit Wasserdampf statt. Die Feinabscheidung erfolgt im oben beschriebenen Naßelektrofilter. The dust-laden raw gas from a sintering plant is first passed through a scrubber. Larger particles (> 16 μm) are pre-separated and the gas is enriched or saturated with water vapor. The fine separation takes place in the wet electrostatic precipitator described above.

Claims

WO 98/46359 5 _ PCT/AT98/00088 __Patentansprüche WO 98/46359 5 _ PCT / AT98 / 00088 __ patent claims
1. Verfahren zur Reinigung von Wasserdampf enthaltenden, staubbeladenen Prozeßgasen in einem Naßelektrofilter, wobei die Gase, welche das Naßelektrofilter durchströmen, in einem Raum zwischen einer oder mehreren Sprühelektroden und einer oder mehreren Niederschlagselektroden aufgeladen werden und an der bzw. den Niederschlagselektroden abgeschieden werden, dadurch gekennzeichnet, daß die Abgasströmungsgeschwindigkeit durch das Naßelektrofilter auf einen Wert von 4 m/s bis 9 m/s eingestellt wird.1. A method for cleaning steam-containing, dust-laden process gases in a wet electrostatic precipitator, the gases which flow through the wet electrostatic precipitator being charged in a space between one or more spray electrodes and one or more precipitation electrodes and being deposited on the precipitation electrode (s) characterized in that the exhaust gas flow rate through the wet electrostatic precipitator is set to a value of 4 m / s to 9 m / s.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Abgasströmungsgeschwindigkeit durch das Naßelektrofilter auf einen Wert von 4,5 m s bis 9 m/s eingestellt wird.2. The method according to claim 1, characterized in that the exhaust gas flow rate through the wet electrostatic precipitator is set to a value of 4.5 ms to 9 m / s.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Abgasströmungsgeschwindigkeit durch das Naßelektrofilter auf einen Wert von 5 m/s bis 9 m/s eingestellt wird.3. The method according to claim 2, characterized in that the exhaust gas flow rate through the wet electrostatic precipitator is set to a value of 5 m / s to 9 m / s.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der abzuscheidende Feinstaub zu wenigstens 90 % aus Teilchen mit einer Korngröße von bis zu 4 μm besteht.4. The method according to any one of claims 1 to 3, characterized in that the fine dust to be separated consists of at least 90% of particles with a grain size of up to 4 microns.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß wenigstens 80 % der Gesamtmenge der Teilchen des abzuscheidenden Staubes in einem Kornband von 0,03 μm bis 2,0 μm vorliegen.5. The method according to any one of claims 1 to 4, characterized in that at least 80% of the total amount of particles of the dust to be separated are present in a grain size range from 0.03 μm to 2.0 μm.
6. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß als Sprühelektrode eine stabförmige Elektrode verwendet wird. 6. The method according to any one of claims 1 to 6, characterized in that a rod-shaped electrode is used as the spray electrode.
EP98912138A 1997-04-11 1998-04-03 Method for cleaning waste process gases containing dust Expired - Lifetime EP0973615B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT62197 1997-04-11
AT0062197A ATA62197A (en) 1997-04-11 1997-04-11 METHOD FOR PURIFYING DUST-LOADED PROCESS EXHAUST GASES
PCT/AT1998/000088 WO1998046359A1 (en) 1997-04-11 1998-04-03 Method for cleaning waste process gases containing dust

Publications (2)

Publication Number Publication Date
EP0973615A1 true EP0973615A1 (en) 2000-01-26
EP0973615B1 EP0973615B1 (en) 2002-07-31

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EP98912138A Expired - Lifetime EP0973615B1 (en) 1997-04-11 1998-04-03 Method for cleaning waste process gases containing dust

Country Status (6)

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EP (1) EP0973615B1 (en)
CN (1) CN1252016A (en)
AT (2) ATA62197A (en)
AU (1) AU735231B2 (en)
DE (1) DE59805002D1 (en)
WO (1) WO1998046359A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329638A1 (en) * 1983-08-17 1985-03-07 Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen DEVICE FOR THE DEDUSTING OF INDUSTRIAL GASES

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9846359A1 *

Also Published As

Publication number Publication date
ATA62197A (en) 2000-07-15
CN1252016A (en) 2000-05-03
WO1998046359A1 (en) 1998-10-22
AU6711698A (en) 1998-11-11
ATE221416T1 (en) 2002-08-15
EP0973615B1 (en) 2002-07-31
AU735231B2 (en) 2001-07-05
DE59805002D1 (en) 2002-09-05

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