DE2447165A1 - Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate - Google Patents

Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate

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Publication number
DE2447165A1
DE2447165A1 DE19742447165 DE2447165A DE2447165A1 DE 2447165 A1 DE2447165 A1 DE 2447165A1 DE 19742447165 DE19742447165 DE 19742447165 DE 2447165 A DE2447165 A DE 2447165A DE 2447165 A1 DE2447165 A1 DE 2447165A1
Authority
DE
Germany
Prior art keywords
calcium
calcium hydroxide
hydroxide solution
carbonate
acids
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Withdrawn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
DE19742447165
Other languages
German (de)
Inventor
Heinz Gresch
Heinz Hoelter
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19742415693 external-priority patent/DE2415693B2/en
Priority to DE19742447165 priority Critical patent/DE2447165A1/en
Application filed by Individual filed Critical Individual
Priority to GB34212/75A priority patent/GB1505281A/en
Priority to AT639475A priority patent/AT356635B/en
Priority to FR7526094A priority patent/FR2285170A1/en
Priority to US05/606,785 priority patent/US4080428A/en
Priority to NL7510250A priority patent/NL7510250A/en
Priority to BR7505565*A priority patent/BR7505565A/en
Priority to AU84432/75A priority patent/AU493917B2/en
Priority to BE2054540A priority patent/BE832940A/en
Priority to SE7509770A priority patent/SE423866B/en
Priority to CH1203075A priority patent/CH617867A5/de
Priority to IT2735575A priority patent/IT1042642B/en
Priority to DK419475A priority patent/DK419475A/en
Priority to JP50113519A priority patent/JPS5155778A/en
Publication of DE2447165A1 publication Critical patent/DE2447165A1/en
Priority to GB4849677A priority patent/GB1545175A/en
Priority to US05/855,268 priority patent/US4222993A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/14—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 by absorption
    • B01D53/1456—Removing acid components
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor

Abstract

Method of purifying effluent gas e.g. smoke and other residual gases contg. SO2 where the gas is contacted with a washing liq. working in a closed cycle to which CaCO3, CaO, or Ca(OH)2 is added, to fix the SO2 and where the Ca cpd. formed is oxidised with atmospheric air to CaSO4 and sepd. from the closed cycle with the aid additives e.g. salts and/or acids which increase the removal of the Ca, is claimed in which the washing liq. is cleaned of solid particles prior to contact with teh gas. Incrustation of the washing plant with calcium carbonate is avoided while the atm. of SO2 absorbed is increased.

Description

Beschreibung und Fr]auterurr zur Zusatz-Patentanmeldung Vrfahren zur Waschung von Rauchgasen und Vorrichtung zur Herstellung von Calciumhydroxid-Lösung mit karbonatzerstörender Impfung und Eindickung der Feststoffe" Zusatz-Patent zur Hauptpatentanmeldung P 24 15 693 Es ist bekannt, Wasser mit Ralk- oder Kalkmilch zu mischen und zur Waschung von z.B. S02 oder HCl-haltigem Gas in Naßwäschern zu benutzen.Description and Fr] auterurr for the additional patent application process for scrubbing flue gases and a device for producing calcium hydroxide solution with carbonate-destroying inoculation and thickening of the solids "additional patent for Main patent application P 24 15 693 It is known to use water with ralk or lime milk to mix and to wash e.g. SO2 or HCl-containing gas in wet scrubbers use.

Vorzugsweise wird dieses Kalksuspensions-Waschverfahren hinter Kraftwerken zur S02-Waschung benutzt.This lime suspension washing process is preferably used behind power plants used for S02 washing.

Der Nachteil dieser Waschung mit Kalksuspension ist vor allem im Ausfällen der Feststoffe im Bereich des Entstaubers und des Gaswäschers sowie in den Inkrustierungen und dadurch entstehenden Verstopfungen des Gesamtsystems zu sehen.The main disadvantage of this washing with lime suspension is that it precipitates the solids in the area of the deduster and the gas scrubber as well as in the incrustations and to see the resulting blockages of the entire system.

Es ist bekannt, daß die Verfügbarkeit solcher Waschanlagen zwischen 60 - 80 % liegt.It is known that the availability of such washing systems between 60 - 80%.

In der Hauptpatentanmeldung, Az.: P 24 15 693.2 und in der Zusatz-Patentanmeldung P 24 44 78 1.2 wird bereits ausgeführt, daß der Nachteil der Inkrustierungen durch Zugabe von karbonatzerstörenden Impfmitteln wie alle Ionen der Halogengruppe sowie alle Anionen, Kompiexverbindungen und Verbindungen anorganischer Art zum Einsatz kommen, die mit Calcium-Ionen wasserlösliche Verbindungen bilden und sich bei Anwesenheit von schwefeliger Säure im neutralen oder schwach sauren tSdium gegen S02-Ionen austauschen lassen und im alkalischen Medium die wasserlöslichen Calciumverbindungen zurückbilden, beschrieben wird.In the main patent application, Az .: P 24 15 693.2 and in the additional patent application P 24 44 78 1.2 already stated that the disadvantage of the incrustations by Addition of carbonate-destroying inoculants like all ions of the halogen group as well all anions, compounds and compounds more inorganic Art are used, which form water-soluble compounds with calcium ions and in the presence of sulphurous acid in the neutral or weakly acidic Let tSdium be exchanged for S02 ions and the water-soluble ones in an alkaline medium Regress calcium compounds, is described.

Um die Verfügbarkeit der Waschanlagen außer dieser karbonatzerstörenden Impfmittelzugabe noch weiter sicherer zu gestalten, wird weiterhin erfindungsgemäß vorgegeben, eine Calciumhydroxid-Flüssigkeit einzusetzen, bei der das Lösungsvermögen des Calciumhydroxids im Wasser Berücksichtigung findet.To the availability of the washing systems besides this carbonate-destroying To make the addition of inoculant even more secure is still the invention specified to use a calcium hydroxide liquid in which the solvency the calcium hydroxide in the water is taken into account.

Es ist z.B. bekannt, daß sich in 1 1 Wasser von 15 Grad bis So Grad C 1 - 1,5 y Calciumhvdroxid lösen.It is known, for example, that in 1 liter of water it is from 15 degrees to 0 degrees C 1 - 1.5 y dissolve calcium hydroxide.

Da alle chemischen Reaktionen Ionen-Reaktionen sind, ist diese klare Calciumhydroxid-Lösung besonders aktiv, um C1 und/oder S02 oder sonstige Anionen zu binden.Since all chemical reactions are ionic reactions, this is clear Calcium hydroxide solution is particularly active around C1 and / or S02 or other anions to tie.

Um diese klare Calcium-Hydroxid-Lösung herzustellen und im Dauerbetrieb als Waschflüssigkeit aktiv für das Auswaschen von z.B. S02 und C1 zu halten, wird erfindungsgemäß vorgeschlagen, eine Vorrichtung entsprechend beiliegender Skizze zu wählen.To produce this clear calcium hydroxide solution and in continuous operation as a washing liquid to keep it active for washing out e.g. S02 and C1 proposed according to the invention, a device according to the accompanying sketch to choose.

In der beiliegenden Skizze ist dargestellt: Mit 1: die Flüssigkeit aus dem Rücklauf von Rauchgaswäschern, mit 2: der Neutralisationsbehälter, mit 3: eine pH-Wert-Steuerung, mit 4: die Kalkzugabe, mit 5: eine karbonatzerstörende Impfeinrichtung, mit 6: der Oxidationsbehälter, mit 7: der Luftkoinpresser, mit 8: die Luftdüse, mit 9: die Flockungsmittel-Irnpfung, mit lo: ein Flüssigkeits-Sinkabscheider, mit 11: ein Eindicker, mit 12: Feststoff, mit 13: aufbereitete Waschflüssigkeit zur Naßwäscher-Einrichtung, zur Waschung des Rohgases.The attached sketch shows: With 1: the liquid from the return of flue gas scrubbers, with 2: the neutralization tank, with 3: a pH value control, with 4: the addition of lime, with 5: a carbonate-destroying Inoculation device, with 6: the oxidation tank, with 7: the Luftkoinpresser, with 8: the air nozzle, with 9: the flocculant injection, with lo: a liquid sink separator, with 11: a thickener, with 12: solid, with 13: treated washing liquid to the wet scrubber device, to scrub the raw gas.

Arbeitsweise der erfindungsgemäßen Vorrichtung.Operation of the device according to the invention.

Die aus dem Rauchgaswäscher abgegebene Flüssigkeit wird dem Neutralisationsbehälter (2) zugeführt.The liquid released from the flue gas scrubber is sent to the neutralization tank (2) fed.

Entsprechend dem gewünschten pH-Wert wird über (3) die Einstellung vorgenommen.According to the desired pH value, the setting is made via (3) performed.

Bei (4) wird Kalk zugegeben und gleichzeitig, wie o.a., bei (5) eine karbonatzerstörende Impfung vorgenommen.At (4) lime is added and at the same time, as above, at (5) a carbonate-destroying vaccination carried out.

Aus dem Neutralisationsbehälter wird mittels Pumpe die neutralisierte Flüssigkeit zur Oxidation dem Oxidationsbehälter (6) übergeben.The neutralized tank is pumped from the neutralization tank Transfer the liquid to the oxidation tank (6) for oxidation.

In diesem Oxidationsbehälter wird mittels Luftkompresser oder zugeführter Luft, über Luftdüsen (8) eine Zirkulation erzeugt, wodurch gleichzeitig eine aktive Oxidation des Calcium-Sulfits zu Calcium-Sulfat durchgeführt wird.In this oxidation tank is supplied by means of an air compressor or Air, a circulation is generated via air nozzles (8), which at the same time creates an active Oxidation of the calcium sulphite to calcium sulphate is carried out.

Nach der Oxidation wird die Flüssigkeit mittels Pumpe dem Sinkabscheiderbehälter (lo) zugeführt.After the oxidation, the liquid is pumped into the sink separator tank (lo) supplied.

Auf dem Wege zum Sinkabscheider wird dem neutralisierten Waschwasser ein Flockungsmittel zugesetzt (9). Im Sinkabscheider (lo) findet eine Eindickung der gebildeten Fest-und Ballast-Stoffe statt, einschließlich der Calciumhydroxidmengen, die sich nicht in Wasser gelöst haben und über den Eindicker (11) zu einem Feststoff (12) verarbeitet werden.On the way to the sink separator is the neutralized washing water a flocculant added (9). There is a thickening in the sink separator (lo) the solid and ballast substances formed, including the amounts of calcium hydroxide, which have not dissolved in water and via the thickener (11) to a solid (12) are processed.

Die aufbereitete Waschflüssigkeit (13) kann pH-Wert gesteuert dem Naßwäscher zur aktiven Waschung neu zugeführt werden.The treated washing liquid (13) can be pH controlled Wet scrubbers are fed in again for active washing.

Durch diese Vorrichtung zur Durchführung des Verfahrens ist die Gewähr gegeben, daß grundsätzlich nur klare und nicht mit Feststoffen belastete Waschflüssigkeiten dem Rauchgas-Waschsys tem zugeführt werden.This device for carrying out the method is the guarantee given that basically only clear washing liquids that are not contaminated with solids be fed to the flue gas scrubbing system.

Die Wasserkreislaufmenge kann so gewählt werden, daß z.B.The amount of water circulating can be chosen so that e.g.

entsprechend der S02-Menge die zu Ca(OH) -Neutralisation 2 erforderlich war, durch die Bildung von Calcium-Bisulfit die gleiche SO -Menge noch einmal gebunden wird.Depending on the amount of SO2, the Ca (OH) neutralization 2 is required was due to the formation of calcium bisulfite the same SO amount is bound again.

2 Formel: CaSO + H SO Ca(HSO 3 2 3 32 Durch diese Reaktion und durch den Zusatz von Anionen z.B. 2 Formula: CaSO + H SO Ca (HSO 3 2 3 32 Through this reaction and through the addition of anions e.g.

nach unseren Haupt- und Zusatz-Patentanmeldungen, Chlor-Ionen, werden Inkrustierungen und Ablagerungen sowie zusätzliche Verschleißerscheinungen an den Düsen und Kreislaufwaschflüssigkeit führenden Pumpen und Leitungen durch Ballast-Stoffe vermieden.according to our main and additional patent applications, chlorine ions Encrustations and deposits as well as additional signs of wear and tear on the Pumps and lines carrying nozzles and circuit washing liquid through ballast substances avoided.

Der erfindungsgemäße Einsatz von klarer Calcium-Hydroxid-Lösung, wie vorher beschrieben und hergestellt, kann für alle Abgaswaschungen, chemische Prozesse und Wasser sowie Abwasserbehandlungen eingesetzt werden, wo Kalk bzw. Calciumhydroxid als Binde- bzw. Reaktions- und/oder Neutralisationsmedium angebracht ist.The inventive use of clear calcium hydroxide solution, such as previously described and manufactured, can be used for all waste gas scrubbing, chemical processes and water and wastewater treatments are used where lime or calcium hydroxide is attached as a binding or reaction and / or neutralization medium.

Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen dargestellten und beschriebenen Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, für Rauchgaswäsche, vorzugsweise von Abgasen aus Kraftwerken und Müllverbrennungsanlagen, als Waschflüssigkeit eine klare Hydroxid-Flüssigkeit einzusetzen, bei der das Lösungsvermögen des Calciumhydroxids in Wasser Berücksichtigung findet, und zur Herstellung dieser Calciumhydroxid-lösung, vorzugsweise für den Dauerbetrieb, als Kreislaufverfahren für große Rauchgaswäschen, ein Neutralisationsbehälter Anwendung findet, in dem die neutralisierenden Zuschlagsstoffe wie Kalk und karbonatzerstörenden Impfstoffe zugeführt werden und in Abhängigkeit von einer pH-Steuerung, diese Flüssigkeit aus dem Neutralisationsbehälter zugeführt wird, in dem durch Luftzuführung eine Umwälzung und gleichzeitige Oxidation von Calcium-Sulfit zu Calcium-Sulfat stattfindet. Diese Sulfatlösung wird einschließlich Ca(OH) dann einem Doppelmantelsinkabscheider, in 2 Form eines Schwerkraftabscheiders, zugeführt, in dem durch Sinkabscheidung die Feststoffe durch genügende Verweilzeit und Zugabe von Flockungsmitteln absinken und das durch Eindickung geklärte Wasser wird als saubere Calciumhydroxid-Lösung ohne Ballast-Stoffe und karbonatbildende Zuschläge den Waschprozeß führenden Aggregaten wieder zugeführt.Of course, the invention is not limited to the above in detail Forms of training shown and described are limited, but there are numerous Changes possible without deviating from the basic idea for flue gas scrubbing, preferably from exhaust gases from power stations and waste incineration plants, as scrubbing liquid to use a clear hydroxide liquid in which the dissolving power of the calcium hydroxide is taken into account in water, and for the production of this calcium hydroxide solution, preferably for continuous operation, as a cycle process for large flue gas scrubbing, a neutralization tank Applies in which the neutralizing Aggregates such as lime and carbonate-destroying vaccines are supplied and depending on a pH control, this liquid from the neutralization tank is supplied, in which a circulation and simultaneous oxidation by air supply from calcium sulfite to calcium sulfate takes place. This sulfate solution will be inclusive Ca (OH) then a double jacket sink separator, in 2 form of a gravity separator, supplied, in which the solids by sink separation through sufficient residence time and adding flocculants and the water clarified by thickening is a clean calcium hydroxide solution without ballast substances and carbonate-forming Supplements fed back to the units leading the washing process.

Patentansprüche: Patent claims:

Claims (1)

Patentansprüche: Anspruch 1: Verfahren zur Waschung von Rauchgasen, nach Hauptpatentanmeldung P 24 15 693 und Vorrichtung zur Herstellung von Calciumhydroxid-Lösung mit karbonatzerstörender Impfung und Eindickung der Feststoffe aus der Vorrichtung dadurch gekennzeichnet, daß an Stelle einer Calciumhydroxidsuspension eine geklärte Calciumhydroxid-Lösung eingesetzt wird.Claims: Claim 1: Process for scrubbing flue gases, according to main patent application P 24 15 693 and device for the production of calcium hydroxide solution with carbonate-destroying inoculation and thickening of the solids from the device characterized in that, instead of a calcium hydroxide suspension, a clarified one Calcium hydroxide solution is used. Anspruch 2: Vorrichtung zur Herstellung der Calciumhydroxid-Lösung nach Patentanspruch 1, dadurch gekennzeichnet, daß die Rücklaufflüssigkeit aus der Rauchgaswäsche einem Neutralisationsbehäiter zugeführt wird, in dem der Flüssigkeit Kalk und karbonatzerstörende Impfmittel zugeführt werden, die gerührt und pH-Wert gesteuert einem Oxidationsbehälter zugeführt werden, in dem durch Luftdüsen eine innige Vermischung und Oxidation von Calcium-Sulfit zu CalciumrSulfat stattfindet, und diese Lösung dann einem Sinkabscheider zugeführt wird, in der über Schwerkraft und Zusatz von Flockungsmitteln die Feststoffe zur Klärung der Lösung absinken und eingedickt werden und eine geklärte Calciumhydroxid-Lösung für den Waschprozeß wieder zur Verfügung steht.Claim 2: Device for producing the calcium hydroxide solution according to claim 1, characterized in that the return liquid from the Flue gas scrubbing is fed to a neutralization tank in which the liquid Lime and carbonate-destroying inoculants are added, which are stirred and pH-value controlled to be fed to an oxidation tank in which a intimate mixing and oxidation of calcium sulfite to calcium sulfate takes place, and this solution is then fed to a sink separator in which the force of gravity and addition of flocculants the solids sink and clarify the solution be thickened and a clarified calcium hydroxide solution for the washing process again is available. LeerseiteBlank page
DE19742447165 1974-04-01 1974-10-03 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate Withdrawn DE2447165A1 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
DE19742447165 DE2447165A1 (en) 1974-04-01 1974-10-03 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
GB34212/75A GB1505281A (en) 1974-09-19 1975-08-18 Process and apparatus for the purification of flue and other waste gas
AT639475A AT356635B (en) 1974-09-19 1975-08-18 METHOD AND DEVICE FOR PURIFYING SMOKE GASES AND OTHER EXHAUST GASES CONTAINING SULFUR DIOXIDE
FR7526094A FR2285170A1 (en) 1974-09-19 1975-08-22 PROCESS AND DEVICE FOR PURIFYING FUME GASES AND OTHER WASTE GASES CONTAINING SULPHUROUS ANHYDRIDE
US05/606,785 US4080428A (en) 1974-09-19 1975-08-22 Process for the purification of flue and other waste gas
NL7510250A NL7510250A (en) 1974-09-19 1975-08-29 METHOD AND EQUIPMENT FOR THE PURIFICATION OF SMOKE GASES AND OTHER EXHAUST GASES CONTAINING SULFUR DIOXIDE.
BR7505565*A BR7505565A (en) 1974-09-19 1975-08-29 PROCESS AND APPARATUS FOR PURIFYING SMOKE GASES AND OTHER EXHAUST GASES CONTAINING SULPHURUS ANHYDRATE
AU84432/75A AU493917B2 (en) 1975-09-01 Improvements in or relating to process and apparatus forthe purification of flue andother waste gas
BE2054540A BE832940A (en) 1974-09-19 1975-09-01 PROCESS AND DEVICE FOR PURIFYING FUME GASES AND OTHER WASTE GASES CONTAINING SULPHUROUS ANHYDRIDE
SE7509770A SE423866B (en) 1974-09-19 1975-09-03 VIEW TO CLEAN Sulfur Dioxide-containing Smoke and Other Exhausts WHEN THE GAS IS CONTACTED WITH LAUNDRY FLUID AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
CH1203075A CH617867A5 (en) 1974-09-19 1975-09-17
IT2735575A IT1042642B (en) 1974-09-19 1975-09-18 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
DK419475A DK419475A (en) 1974-09-19 1975-09-18 PROCEDURE AND APPARATUS FOR CLEANING GAS GAS AND OTHER EXHAUST GASES CONTAINING SULFUR DIOXIDE
JP50113519A JPS5155778A (en) 1974-09-19 1975-09-19 Haigasuoyobi nisankaioo fukumu sonotano gasuojokasuruhohooyobi sochi
GB4849677A GB1545175A (en) 1974-09-19 1977-11-22 Removal of noxious contaminants from gas
US05/855,268 US4222993A (en) 1974-09-19 1977-11-28 Removal of noxious contaminants from gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742415693 DE2415693B2 (en) 1974-04-01 1974-04-01 Process for cleaning flue gases or other gases
DE19742447165 DE2447165A1 (en) 1974-04-01 1974-10-03 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate

Publications (1)

Publication Number Publication Date
DE2447165A1 true DE2447165A1 (en) 1976-04-22

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DE19742447165 Withdrawn DE2447165A1 (en) 1974-04-01 1974-10-03 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate

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DE (1) DE2447165A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3241540A1 (en) * 1982-11-10 1984-05-10 L. & C. Steinmüller GmbH, 5270 Gummersbach METHOD FOR THE CONTINUOUS REMOVAL OF WASHING SUSPENSION WITH INCREASED SOLIDS CONCENTRATION FROM A WASHING TOWER OF A SMOKE GAS DESULPATION SYSTEM WORKING WITH LIME OR LIMESTONE AS AN ABSORPTION AGENT
DE3317505A1 (en) * 1983-05-13 1984-11-15 L. & C. Steinmüller GmbH, 5270 Gummersbach Process for treating an absorbent solution or absorbent suspension, originating from wet flue gas desulphurisation, with a gaseous oxidant and apparatus for carrying out the process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3241540A1 (en) * 1982-11-10 1984-05-10 L. & C. Steinmüller GmbH, 5270 Gummersbach METHOD FOR THE CONTINUOUS REMOVAL OF WASHING SUSPENSION WITH INCREASED SOLIDS CONCENTRATION FROM A WASHING TOWER OF A SMOKE GAS DESULPATION SYSTEM WORKING WITH LIME OR LIMESTONE AS AN ABSORPTION AGENT
DE3317505A1 (en) * 1983-05-13 1984-11-15 L. & C. Steinmüller GmbH, 5270 Gummersbach Process for treating an absorbent solution or absorbent suspension, originating from wet flue gas desulphurisation, with a gaseous oxidant and apparatus for carrying out the process

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