[go: up one dir, main page]

DE2659289A1 - Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate - Google Patents

Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate

Info

Publication number
DE2659289A1
DE2659289A1 DE19762659289 DE2659289A DE2659289A1 DE 2659289 A1 DE2659289 A1 DE 2659289A1 DE 19762659289 DE19762659289 DE 19762659289 DE 2659289 A DE2659289 A DE 2659289A DE 2659289 A1 DE2659289 A1 DE 2659289A1
Authority
DE
Germany
Prior art keywords
air
soln
blown
liq
waste gas
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Withdrawn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
DE19762659289
Other languages
German (de)
Inventor
Heinz Gresch
Heinz Hoelter
Heinrich Igelbuescher
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
Application filed by Individual filed Critical Individual
Priority to DE19762659289 priority Critical patent/DE2659289A1/en
Publication of DE2659289A1 publication Critical patent/DE2659289A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00Compounds of calcium, strontium, or barium
    • C01F11/46Sulfates
    • C01F11/464Sulfates of Ca from gases containing sulfur oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

Oxidn. appts., using an outer pipe (a) and an inner pipe (b) of different heights, determined by the static height of a liq. and the pressure of the iar blown into that liq., so the height of a mixt. of air and liq. is much greater than the height of the liq. The pref. appts. uses an outer container (a) for the liq. and one or more inner pipes (b), up which air is blown to carry the mixt. of air and liq. to the top part of container (a). Used in conjunction with waste gas desulphurisation plant employed with coal burning power stations, or with waste incineration plant.

Description

Beschreibung und Erläuterung zurDescription and explanation of the

Patentanmeldung 11olidationsvorrichtung, vorzugsweise für Rauchgasentschwefelungsanlagenw' In neuerer Zeit werden vielfach Rauchgasentschwefelungs-Anlagen hinter Eohlekraftwerken und Müllverbrennungs-Anlagen installiert.Patent application for consolidation device, preferably for flue gas desulphurisation systems In recent times, flue gas desulphurization systems are often installed behind coal power plants and waste incineration plants installed.

Die Waschflüssigkeit enthält Kalkmilch und wird aufgrund der Berührung mit den S02 zu einer Flüssigkeit, die Ca603 (Calciumsulfit) beinhaltet.The washing liquid contains milk of lime and is due to the touch with the S02 to a liquid that contains Ca603 (calcium sulfite).

Calciumsultit ist eine thixotrope Masse, die nur in besonderen vorgesehenen Deponien abgelagert werden darf.Calcium sultite is a thixotropic mass that is only provided in special Landfills may be deposited.

Die Zielsetzung ist, das Rückstandsprodukt von CIS03 zu CaS04 zu oxidieren.The objective is to oxidize the residue product of CIS03 to CaS04.

Das ist daher bereits mit Erfolg durchgeführt worden.This has therefore already been done with success.

In einem Oxidationsbehälter, der aus einem Mittelrohr und einem umlagerten Behälter besteht, wird in das Mittelrohr Luft eingeblasen und die Oxidation erzeugt.In an oxidation tank, which consists of a central tube and a rearranged one Container, air is blown into the central tube and the oxidation is generated.

Es ist jedoch bekannt, und es hat sich auch gezeigt daß die Verweilzeit und die Druckhöhe, unter der die Oxidation, d.h. das Einwirken der Luft auf die CaSO3-Ionen stattfindet von wesentlicher Bedeutung ist.However, it is known and has been shown that the residence time and the pressure level below which the oxidation, i.e. the action of the air on the CaSO3 ions taking place is essential.

bus diesem Grunde wird erfindungsgemäß vorgeschlagen, einen Oxideur, der eine Vergrößerung der Verweilzeit garantiert und gleichzeitig eine Erhöhung des Wasser drucks auf das zu oxidierende Produkt ausübt, zu benutzen entsprechend beiliegender Zeichnung.For this reason it is proposed according to the invention to use an oxidizer, which guarantees an increase in the dwell time and at the same time an increase the water pressure exerts on the product to be oxidized, to be used accordingly enclosed drawing.

In der beiliegenden Zeichnung ist dargestellt: mit 1 der äußere Oxidationebehälter; mit 2 die Waschflüssigkeit im äußeren Oxidationsbehälter; mit 3 die Oxidationsstrecke, die auch als Mehrfach~ strecke ausgeführt sein ~#ann, d#h. Bündelrohre oder dergleichen; mit 4 die reine Waschflüssigkeitshöhe; mit 5 die Waschflüssigkeits-Oxidationslufthöhe 5 Oxidationsstreckenlänge; mit 6 der eingeschnürte Außenmantel des Oxidationsbehälters.In the accompanying drawing is shown: with 1 the outer oxidation tank; with 2 the washing liquid in the outer oxidation tank; with 3 the oxidation path, which can also be designed as a multiple route, i.e. Bundle tubes or the like; with 4 the pure washing liquid level; with 5 the washing liquid oxidation air level 5 oxidation path length; with 6 the constricted outer jacket of the oxidation tank.

Die Verlängerung der Oxidationsstrecke ergibt sich aus der natheuatischen Gleichung: Y Waschflüssigkeit 1 Höhe der Waschflüssigkeit #Waschflüssigkeit-Luft x Höhe der Oiidationsstrecke Durch diese erfindungsgenäße konstruktive Anordnung eines Orideurs werden eit geringstem Luftbedarf durch Einblasen der Luft bei 7 in Relation zu bekannten Osidationssorrichtungen die besten Oxidationswerte erzielt.The extension of the oxidation path results from the natural Equation: Y washing liquid 1 height of washing liquid # washing liquid-air x Height of the Oiidationsabschnitt By this inventive constructive arrangement of an orider can be achieved with the least amount of air by blowing in the air at 7 in In relation to known oscillation devices, the best oxidation values are achieved.

Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen dargestellte Ausbildungsforj beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne Jedoch von den Grundgedanken absuweichen, eine Oxidationsvorrichtung so zu bauen, daß sie einen Innen- und Außenrohrmantel besitzt oder mehrere Innen- und Außenrohrmäntel, wobei die Innen-oder die Außenrohre gegeneinander unterschiedlich hpoh angeordnet sind und entsprechend der Luftdruckhöhe eine entsprechende Luftwassersäule erzielen, so daß erfordernisgerecht die Verweilzeit durch die Höhe des Luftdrucks über die Oxidationsstreckenhöhe oder -Länge und den dazugehörigen erforderlichen Druck bestimmt werden kann.Of course, the invention is not limited to the above in detail The training format shown is limited, but there are numerous changes possible, however, without deviating from the basic idea, an oxidation device to be built in such a way that it has an inner and outer pipe jacket or several inner and outer tube jackets, the inner or outer tubes being different from one another hpoh are arranged and a corresponding column of air water according to the air pressure level Achieve, so that the dwell time as required by the level of the air pressure on the height or length of the oxidation path and the associated required Pressure can be determined.

Patentansprüche:Patent claims:

Claims (1)

Patentansprüche Anspruch 1: Oxidationsvorrichtung dadurch gekennzeichnet, daß zwischen Außenrohr und Innenrohr unterschiedliche Banhöhen verwandt werden, die durch den einblasenden Luftdruck und die stehende Flüssigkeitshöhe bestimmt werden, wobei das Flüssigkeitsluftgemisch eine wesentlich längere oder höhere Strecke aufweist als die reine Blüssigkeitssäule.Claims Claim 1: Oxidation device characterized in that that different heights are used between the outer pipe and the inner pipe, which is determined by the air pressure being blown in and the height of the liquid be, with the liquid-air mixture a much longer or higher distance than the pure column of liquid. Anspruch 2: Oxidationsvorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß sie aus einem Außenbehälter 1, der Flüssigkeitssäule 2 und der vorzugsweise mittig einzeln oder mehrfach angeordneten Oxidationsstrecke 3 besteht, die wesentlich höher als der Flüssigkeitsspiegel 4 ausgeführt ist, und daß die erforderliche Oxidationsluft bei 7 dem Oxidationsstreckenprofil zugeführt wird.Claim 2: Oxidation device according to Claim 1, characterized in that that it consists of an outer container 1, the liquid column 2 and the preferably centrally individually or multiply arranged oxidation path 3 consists, which is essential is made higher than the liquid level 4, and that the required oxidizing air at 7 is fed to the oxidation path profile.
DE19762659289 1976-12-29 1976-12-29 Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate Withdrawn DE2659289A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762659289 DE2659289A1 (en) 1976-12-29 1976-12-29 Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762659289 DE2659289A1 (en) 1976-12-29 1976-12-29 Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate

Publications (1)

Publication Number Publication Date
DE2659289A1 true DE2659289A1 (en) 1978-07-13

Family

ID=5996887

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762659289 Withdrawn DE2659289A1 (en) 1976-12-29 1976-12-29 Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate

Country Status (1)

Country Link
DE (1) DE2659289A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512353A1 (en) * 1981-09-05 1983-03-11 Steinmueller Gmbh L & C PROCESS FOR TREATING FINAL PRODUCTS FROM FUMES DESULFURIZATION
EP0074258A1 (en) * 1981-09-04 1983-03-16 A/S Niro Atomizer Improved process for flue gas desulfurization
US4495162A (en) * 1981-09-04 1985-01-22 A/S Niro Atomizer Preparation of a calcium sulfate anhydrite material of low chloride content

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074258A1 (en) * 1981-09-04 1983-03-16 A/S Niro Atomizer Improved process for flue gas desulfurization
US4495162A (en) * 1981-09-04 1985-01-22 A/S Niro Atomizer Preparation of a calcium sulfate anhydrite material of low chloride content
US4595576A (en) * 1981-09-04 1986-06-17 A/S Niro Atomizer Process for flue gas desulfurization
FR2512353A1 (en) * 1981-09-05 1983-03-11 Steinmueller Gmbh L & C PROCESS FOR TREATING FINAL PRODUCTS FROM FUMES DESULFURIZATION

Similar Documents

Publication Publication Date Title
DE3218470C2 (en) Device for a plant for the desulphurization of flue gas
DE3227187C1 (en) Wash tower for a plant for the desulphurization of flue gas
DE2532373C3 (en) Method and device for cleaning flue gases and other exhaust gases containing sulfur dioxide
DE3232077C2 (en) Method and device for removing sulfur dioxide and other pollutants from flue gases
DE3236905A1 (en) PLANT FOR THE DESULFURATION OF SMOKE GASES AND METHOD FOR OPERATING THE PLANT
DE2520045A1 (en) Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage
DE3240317C2 (en) Process for the production of calcium sulphate dihydrate in the course of the desulphurisation of flue gases from power plant boiler systems
DE69509229T2 (en) METHOD FOR REMOVING SULFUR DIOXIDE FROM A GAS
EP1073508B1 (en) Method for separating sulphur dioxide from off-gas by means of sea water and flue-gas desulphurization plants for the implementation of said method
DE2659289A1 (en) Sulphur di:oxide removal from waste gas using aq. lime soln. - where air is blown into soln. to convert sulphite to calcium sulphate
DE2432903A1 (en) PROCESS FOR SEPARATING SULFUR OXYDES AND NITROGEN OXYDES FROM COMBUSTION GASES
EP0008770A1 (en) Installation for the separation of gaseous pollutants from flue gases
DE2819994A1 (en) PROCESS FOR THE REMOVAL OF SULFUR DIOXIDE FROM WASTEWATERS AND, IF ANY, EXHAUST GASES
DE7640920U1 (en) OXIDATION DEVICE, PRESENTLY FOR FLUE GAS DESULFURIZATION SYSTEMS
DE10338752B9 (en) Process and apparatus for reducing polyhalogenated compounds in incinerators
EP0243368B1 (en) Method for reducing emissions from industrial exhaust gases and industrial discharge air
DE3139991C2 (en)
DE4141529C2 (en) Exhaust air purification process
DE2353236C3 (en) Process for the recovery of heat and chemicals from the residual liquor in cellulose production
DE4406715C2 (en) Process for operating a flue gas desulfurization system for a lignite-dust-fired power plant
CH602166A5 (en) Removing sulphur and its cpds. from waste combustion gas
DE3818255C1 (en) Process for the desulphurisation of flue gas and reactor usable for this
DE2217317A1 (en) Sulphur dioxide and dust removal - from waste gas streams
DE3308648A1 (en) Scrubbing liquid for scrubbing acidic gases such as SO2, HCl, HF, NOx etc.
DE2131796A1 (en) High chimney gas washing - using wash liquid introduced directly into chimney

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee