DE3525975A1 - Process for simultaneously scrubbing out SO2 and NOx from flue gases by the effect of UV radiation - Google Patents

Process for simultaneously scrubbing out SO2 and NOx from flue gases by the effect of UV radiation

Info

Publication number
DE3525975A1
DE3525975A1 DE19853525975 DE3525975A DE3525975A1 DE 3525975 A1 DE3525975 A1 DE 3525975A1 DE 19853525975 DE19853525975 DE 19853525975 DE 3525975 A DE3525975 A DE 3525975A DE 3525975 A1 DE3525975 A1 DE 3525975A1
Authority
DE
Germany
Prior art keywords
scrubbing
radiation
nox
effect
flue gases
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Withdrawn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
DE19853525975
Other languages
German (de)
Inventor
Heinz Dipl Ing Hoelter
Werner Prof Dr Weisweiler
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 DE19853525975 priority Critical patent/DE3525975A1/en
Publication of DE3525975A1 publication Critical patent/DE3525975A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/123—Ultraviolet light
    • 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
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

It is known that certain scrubbing liquids, under the influence of Fe II and at a defined redox potential, guarantee high degrees of scrubbing-out of SO2 and NOx. The difficulty with this known process lies in keeping the Fe II-chelate complex in the scrubbing solution, since new Fe III is continuously formed in the scrubbing process. In order to reduce this Fe III back to Fe II and in order to maintain the necessary redox potential, according to the invention it is proposed that the scrubbing liquid is directly or indirectly treated by UV radiation, preferably UV lamps.

Description

Es wurde gefunden, daß bekannte spezifische Waschflüssigkeiten unter dem Einfluß von Fe-II und einem bestimmten Redoxpotential hohe Auswaschgrade an SO2 und NOx garantieren.It has been found that known specific washing liquids under the influence of Fe-II and a certain redox potential guarantee high degrees of washing out of SO 2 and NO x .

Die Schwierigkeit liegt in der Aufrechterhaltung des Fe-II-Chelat-Komplexes in der Waschlösung, da bei dem Waschprozeß immer wieder neues Fe-III gebildet wird.The difficulty lies in maintaining it of the Fe-II chelate complex in the wash solution, there is always something new in the washing process Fe-III is formed.

Um dieses gebildete Fe-III wieder in Fe-II zu reduzieren und um das notwendige Redoxpotential aufrechtzuerhalten, wird erfindungsgemäß vorgeschlagen, daß UV-Lampen in der Waschflüssigkeit eingetaucht werden, die eine dünne Schicht der Waschflüssigkeitsmenge bestrahlen, bzw. daß die UV-Lampen mittels Waschflüssigkeit besprüht werden, und dadurch Fe-III in Fe-II zurückgebildet wird.To get this formed Fe-III back into Fe-II reduce and the necessary redox potential to maintain, it is proposed according to the invention  that UV lamps in the washing liquid to be immersed which is a thin layer of Irradiate the amount of washing liquid, or that the UV lamps are sprayed with washing liquid, and thereby Fe-III is reformed into Fe-II.

Je nach Stärke der Strahlung wird eine bestimmte Umsetzungsrate von Fe-III zu Fe-II erzielt und auch eine entsprechende Beeinflussung des Redoxpotentials bewirkt.Depending on the strength of the radiation, a certain one Conversion rate achieved from Fe-III to Fe-II and a corresponding influence on the redox potential causes.

Claims (1)

Verfahren zur simultanen Waschung von SO2 und NOx dadurch gekennzeichnet, daß die Waschflüssigkeit mittels UV-Strahlen, vorzugsweise UV-Lampen, direkt oder indirekt behandelt wird.Process for the simultaneous washing of SO 2 and NO x, characterized in that the washing liquid is treated directly or indirectly by means of UV rays, preferably UV lamps.
DE19853525975 1985-07-20 1985-07-20 Process for simultaneously scrubbing out SO2 and NOx from flue gases by the effect of UV radiation Withdrawn DE3525975A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853525975 DE3525975A1 (en) 1985-07-20 1985-07-20 Process for simultaneously scrubbing out SO2 and NOx from flue gases by the effect of UV radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853525975 DE3525975A1 (en) 1985-07-20 1985-07-20 Process for simultaneously scrubbing out SO2 and NOx from flue gases by the effect of UV radiation

Publications (1)

Publication Number Publication Date
DE3525975A1 true DE3525975A1 (en) 1987-01-29

Family

ID=6276287

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853525975 Withdrawn DE3525975A1 (en) 1985-07-20 1985-07-20 Process for simultaneously scrubbing out SO2 and NOx from flue gases by the effect of UV radiation

Country Status (1)

Country Link
DE (1) DE3525975A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430231A1 (en) * 1994-08-25 1996-02-29 Ultralight Ag Process and device for cleaning gases and liquids
US20110171091A1 (en) * 2010-01-13 2011-07-14 Omotowa Bamidele A Method for uv photolytic separation of pollutant gases from an emission stream

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430231A1 (en) * 1994-08-25 1996-02-29 Ultralight Ag Process and device for cleaning gases and liquids
US5958251A (en) * 1994-08-25 1999-09-28 Ultralight Ag Method of and apparatus for the purification of gases and liquids
US20110171091A1 (en) * 2010-01-13 2011-07-14 Omotowa Bamidele A Method for uv photolytic separation of pollutant gases from an emission stream
US8636968B2 (en) * 2010-01-13 2014-01-28 Bamidele A. Omotowa Method for UV photolytic separation of pollutant gases from an emission stream

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8130 Withdrawal
8165 Unexamined publication of following application revoked