DE3116701A1 - Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants - Google Patents

Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants

Info

Publication number
DE3116701A1
DE3116701A1 DE19813116701 DE3116701A DE3116701A1 DE 3116701 A1 DE3116701 A1 DE 3116701A1 DE 19813116701 DE19813116701 DE 19813116701 DE 3116701 A DE3116701 A DE 3116701A DE 3116701 A1 DE3116701 A1 DE 3116701A1
Authority
DE
Germany
Prior art keywords
wet
dry
dry gas
waste incineration
gas purification
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Withdrawn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
DE19813116701
Other languages
German (de)
Inventor
Heribert Ing.(grad.) 4390 Gladbeck Dewert
Heinz Ing.(Grad.) 4600 Dortmund Gresch
Heinz Ing.(grad.) 4390 Gladbeck Hölter
Heinrich Ing.(grad.) 5490 Gladbeck Igelbüscher
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 DE19813116701 priority Critical patent/DE3116701A1/en
Priority to BR8103078A priority patent/BR8103078A/en
Priority to NO811741A priority patent/NO811741L/en
Priority to US06/266,291 priority patent/US4388281A/en
Priority to DK227181A priority patent/DK227181A/en
Priority to EP81103973A priority patent/EP0044916B1/en
Priority to AT81103973T priority patent/ATE25008T1/en
Priority to DE8181103973T priority patent/DE3175842D1/en
Publication of DE3116701A1 publication Critical patent/DE3116701A1/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Withdrawn legal-status Critical Current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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (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

The application relates to a process for wet and dry gas purification, preferably for power stations and/or waste incineration plants, in which the separation of SO2 and other pollutants proceeds by their being taken up by lime, in particular fine white lime and in which, to improve the reactivity, monobasic and/or polybasic carboxylic acids are used. According to the invention, by further addition of piperazine hexahydrate and/or piperazine citrate, the amount of the carboxylic acids to be added is reduced and the chemisorption is improved both in the dry and in the wet processes.

Description

Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application

"Verfahren zur nassen und trockenen Gasreinigung vorzugsweise für Kraftwerks - und ioder Müllverbrennungsanlagen" Es ist bekannt, nasse bzw. trockene Gasreinigungsverfahren zu verwenden, indem die Gase mit einer Flüssigkeit in Kontakt gebracht werden, wobei in der Flüssigkeit Kalksubstanzen und Additive die Anlagerung der Schadstoffe von SO2 z.B. an Weißfeinkalk ermöglichen."Process for wet and dry gas cleaning preferably for Power plant and waste incineration plants "It is known that wet or dry Use gas cleaning processes by bringing the gases into contact with a liquid be brought, whereby lime substances and additives are deposited in the liquid the pollutants of SO2, e.g. on white fine lime.

Bei einem Trockenverfahren ist es bekannt, daß z.B. Kalkhydrat in Kontaktstrecken oder in Kontaktreaktoren mit dem Gas gebracht wird und über Elektrofilter bzw. Gewebefilter mit den chemisorbierten Sehadstoffen abgeschieden wird.In a dry process, it is known that hydrated lime, for example, is present in Contact sections or in contact reactors with the gas is brought and via electrostatic precipitators or fabric filter with the chemisorbed visual pollutants is deposited.

Bei Naßanlagen werden vielfach ein- und/ oder mehrbasische Carbonsäuren zugesetzt, die zur Verbesserung der Chemisorptionsfähigkeit hinsichtlich der Waschgeschwindigkeit und spezifischen Waschflüssigkeitsmengen positiv beitragen.In wet systems, mono- and / or polybasic carboxylic acids are often used added to improve the chemisorbability in terms of washing speed and specific amounts of washing liquid make a positive contribution.

Hierbei handelt es sich in der Regel um zu dosierende Mengen von 0,5 - 3 g / Liter Waschflüssigkeit.As a rule, the quantities to be dosed are 0.5 - 3 g / liter of washing liquid.

Es ist herausgefunden worden, daß durch Zugabe von Piperazin-Hexahydrat oder Piperazinumcitrat, d.h.It has been found that by adding piperazine hexahydrate or piperazine citrate, i.

durch die Zugabe der erfindungsgemäßen Base des Piperazins und/oder dessen Zitronensäureverbindungen der Additivwert, z.B. wie obig angeführt, von 1,5 - 5 g beachtlich abgesenkt werden kann, z.B. auf einen Wert von unter 50 % der Zugabemenge einer mehrbasischen Karbonsäure, z.B. kleiner 0,2 Liter Waschflüssigkeit.by adding the base according to the invention of piperazine and / or whose citric acid compounds have the additive value, e.g. as stated above, of 1.5 - 5 g can be reduced considerably, e.g. to a value of less than 50% of the added amount a polybasic carboxylic acid, e.g. less than 0.2 liters of washing liquid.

Hinzukommt, daß das genannte Additiv Piperazin absolut toxisch einwandfrei ist und einen Verdampfungspunkt von oberhalb 100 0C besitzt.In addition, the said additive piperazine is absolutely toxic and has an evaporation point above 100 ° C.

Weiterhin wird erfindungsgemäß vorgeschlagen, nicht nur der Waschflüssigkeit für das Naßverfahren dieses genannte, erfindungsgemäße Additiv zuzusetzen, sondern auch dem Trockenverfahren in Form von feinverdüsten, schwachen Lösungen, die in die Reaktoren oder Kontaktstrecken bzw.Furthermore, it is proposed according to the invention, not just the washing liquid for the wet process this said additive according to the invention to be added, rather also the dry process in the form of finely atomized, weak solutions that are used in the reactors or contact sections or

Filterflächen aufgesprüht werden.Filter surfaces are sprayed on.

Hierdurch wurde gefunden, daß eine wesentliche Verbesserung der Chemisorption und somit der trockenen Additivzugabe wie Kalkhydrat, erreicht werden konnte.This has found that there is a substantial improvement in chemisorption and thus the dry addition of additives such as hydrated lime could be achieved.

Patentansprüche: Patent claims:

Claims (1)

Patentans#rche I Anspruch 1 Verfahren zur nassen bzw. trockenen Gasreinigung vorzugsweise hinter Kraftwerks- und Müllverbrennungsanlagen dadurch gekennzeichnet, daß der Waschflüssigkeit und / oder dem trockenen Gasstrom als Additiv Piperazin-Hexahydrat und / oder Piperazinumcitrat zugesetzt wird.Patent claims I claim 1 method for wet or dry gas cleaning characterized preferably behind power plants and waste incineration plants, that the scrubbing liquid and / or the dry gas stream as an additive piperazine hexahydrate and / or piperazine citrate is added. Anspruch II Verfahren nach Anspruch I dadurch gekennzeichnet, daß das erfindungsgemäße Additiv, vorzugsweise in Mengen von 0,01 g bis 1,5 g / Liter, im Waschwasser enthalten ist, bzw. diese Waschflüssigkeit fein dispergiert dem trockenen Rohgasstrom innerhalb der trockenen Chemisorptionsanlage zugeführt wird.Claim II, method according to claim I, characterized in that the additive according to the invention, preferably in amounts of 0.01 g to 1.5 g / liter, is contained in the washing water, or this washing liquid is finely dispersed in the dry Raw gas stream is fed within the dry chemisorption system.
DE19813116701 1980-05-24 1981-04-28 Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants Withdrawn DE3116701A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19813116701 DE3116701A1 (en) 1981-04-28 1981-04-28 Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants
BR8103078A BR8103078A (en) 1980-05-24 1981-05-18 PROCESS AND DEVICE FOR THE DISPOSAL OF Sulfurous Anhydride AND OTHER HARMFUL SUBSTANCES OF SMOKE GAS
NO811741A NO811741L (en) 1980-05-24 1981-05-21 PROCEDURE AND DEVICE FOR SO2 REMOVAL AND OTHER SMOKING GAS
US06/266,291 US4388281A (en) 1980-05-24 1981-05-22 Noxious-component removal from flue gas and compositions useful therefor
DK227181A DK227181A (en) 1980-05-24 1981-05-22 PROCEDURE AND APPARATUS FOR THE REMOVAL OF SULFUR DIOXIDE AND OTHER HARMFUL MATERIALS FROM ROEGGAS
EP81103973A EP0044916B1 (en) 1980-05-24 1981-05-23 Process and apparatus for the separation of sulfur dioxide and other pollutants from flue gas
AT81103973T ATE25008T1 (en) 1980-05-24 1981-05-23 METHOD AND APPARATUS FOR REMOVING SULFUR DIOXIDE AND OTHER POLLUTANTS FROM FLUE GAS.
DE8181103973T DE3175842D1 (en) 1980-05-24 1981-05-23 Process and apparatus for the separation of sulfur dioxide and other pollutants from flue gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813116701 DE3116701A1 (en) 1981-04-28 1981-04-28 Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants

Publications (1)

Publication Number Publication Date
DE3116701A1 true DE3116701A1 (en) 1982-12-02

Family

ID=6130927

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813116701 Withdrawn DE3116701A1 (en) 1980-05-24 1981-04-28 Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants

Country Status (1)

Country Link
DE (1) DE3116701A1 (en)

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