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WO2009129993A1 - Réacteur à ultraviolets et ses utilisations - Google Patents

Réacteur à ultraviolets et ses utilisations Download PDF

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Publication number
WO2009129993A1
WO2009129993A1 PCT/EP2009/002892 EP2009002892W WO2009129993A1 WO 2009129993 A1 WO2009129993 A1 WO 2009129993A1 EP 2009002892 W EP2009002892 W EP 2009002892W WO 2009129993 A1 WO2009129993 A1 WO 2009129993A1
Authority
WO
WIPO (PCT)
Prior art keywords
reactor according
light
hollow body
light source
reactor
Prior art date
Application number
PCT/EP2009/002892
Other languages
German (de)
English (en)
Inventor
Martin SÖRENSEN
Jürgen Weckenmann
Original Assignee
A.C.K. Aqua Concept Gmbh Karlsruhe
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 A.C.K. Aqua Concept Gmbh Karlsruhe filed Critical A.C.K. Aqua Concept Gmbh Karlsruhe
Publication of WO2009129993A1 publication Critical patent/WO2009129993A1/fr

Links

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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873—Materials to be treated
    • B01J2219/0877—Liquid

Definitions

  • the present invention relates to a reactor for irradiating light in a preferably flowing medium and the use of such a reactor for the oxidation and / or synthesis of chemical compounds or for disinfection and a method for the targeted photochemical conversion of chemical compounds.
  • UV reactors for the oxidation or synthesis of certain substances in liquids or for the disinfection of liquids such as water have been known for a long time.
  • Such reactors generally consist of one or more UV-transmitting quartz glass tubes, which are surrounded by a housing so that the medium to be irradiated can flow between the housing and the outer parts of the quartz glass tubes.
  • Such UV reactors are known, for example, from EP 0 803 472.
  • As a radiation source such reactors usually mercury vapor lamps, in particular medium-pressure or low-pressure lamps. When operating such reactors, however, often occur problems.
  • medium-pressure and low-pressure radiators can heat up very strongly, which in particular can have a very negative effect on their life expectancy.
  • the present invention has for its object to provide a technical solution for the oxidation and synthesis of substances by irradiation and for disinfecting particular liquid media, in which the problems mentioned do not occur or only to a greatly reduced extent.
  • a reactor according to the invention for irradiating light into a flowing medium comprises at least one light source which emits light having a wavelength between 200 nm and 500 nm. Furthermore, the reactor according to the invention comprises at least one hollow body and preferably also a housing which surrounds the at least one hollow body. The at least one hollow body in this case has a wall which is at least partially permeable to light of said wavelength.
  • a reactor according to the invention is characterized in that the at least one light source is an LED.
  • An LED light emitting diode
  • LEDs are not temperature radiators. They emit light in a limited spectral range, the light itself is usually almost monochrome. Compared to classic light sources, they have a much longer life. In addition, they can be switched very high frequency.
  • a reactor according to the invention is much more efficient than reactors known from the prior art with the medium-pressure or low-pressure radiators mentioned at the outset.
  • the luminous efficacy of LEDs is now up to about 100 in / W higher than that of incandescent and halogen lamps and therefore almost on par with the gas discharge lamps known to be very efficient in this regard.
  • LED's also develop heat, but the aforementioned cooling problems with the use of LED's as sources of radiation do not occur to the same extent as is the case with conventional reactors. As a rule, expensive cooling systems can therefore be dispensed with.
  • LEDs are particularly preferably used which emit light having a wavelength between 320 nm and 400 nm. LEDs with an emission wavelength in this range are known to the person skilled in the art, for example corresponding InGaN LEDs can be used. As an example, e.g. NCSU033A type LEDs from Nichia Corporation, Japan. Furthermore, e.g. Can be used T5H36 or T8D236 LEDs from Seoul Optodevice Co., South Korea.
  • LEDs are used which emit light having a wavelength between 220 nm and 320 nm. Also LEDs with an emission wavelength in this range are the One skilled in the art, an example of which are T9B25C type LEDs from Seoul Optodevice Co., South Korea
  • the inventive reactor has two or more light sources which have the same emission wavelength.
  • it may also comprise a plurality of light sources having different emission wavelengths.
  • the reactor has an electronic circuit, by means of which the intensity of the light emission of the at least one light source can be set.
  • the reactor can also comprise an electronic circuit, which enables a pulsed operation of the at least one light source.
  • both functions intensity control and pulsed operation
  • the intensity of the light emission can be varied, for example, by selectively connecting or disconnecting individual light sources with the same or different emission wavelengths. So let u.a. also deliberately change the frequency spectrum and adapt it to a specific application. In particular, by adjusting the pulse rate, the radiation intensity can be set extremely flexible. This is not possible with classical radiation sources.
  • the reactor according to the invention is a synthesis reactor for photochemical applications.
  • the at least one hollow body is preferably formed rohrf ⁇ rmig.
  • the at least one hollow body is um a substantially consisting of quartz glass hollow body.
  • the hollow body has a diameter of between 100 mm and 200 mm, in particular of approximately 150 mm.
  • the at least one light source is arranged in preferred embodiments of the reactor according to the invention within the hollow body.
  • the medium to be irradiated then flows around the hollow body.
  • the reactor according to the invention then preferably has a housing designed in such a way that the housing and the at least one hollow body enclose a space through which the medium to be irradiated can flow.
  • the housing of the reactor according to the invention has an inner surface which is at least partially coated with a reflective material. As a result, the escape of radiation from the housing can be prevented or at least minimized.
  • the at least one light source of the reactor according to the invention can also be arranged outside the hollow body. Through the hollow body then flows to be irradiated medium. Particularly preferably, a plurality of light sources are grouped around the hollow body, in particular in concentric arrangement around the hollow body.
  • the at least one light source is mounted on at least one printed circuit board disposed within the reactor.
  • the at least one printed circuit board is preferably according to the above preferred embodiments either inside or outside the min. least one tubular hollow body arranged.
  • the printed circuit board may in particular also be curved. In preferred embodiments, it has a curvature such that it can be arranged within (or around) the tubular hollow body such that its surface and thus preferably light sources disposed on its surface are at substantially the same distance from the inner or outer at each point Have wall of the tubular hollow body.
  • the reactor according to the invention has at least two groups each consisting of two or more light sources. Each of the two groups is preferably separately switchable. Within a group, all light sources preferably have the same emission wavelength. In preferred embodiments, the reactor according to the invention has at least two groups of light sources having a different emission wavelength.
  • the flowing medium is preferably an aqueous medium, for example a preferably aqueous electrolyte with organic impurities or biologically contaminated wastewater.
  • the flowing medium can also be an organic medium, in particular an organic solvent.
  • a reactor according to the invention is suitable both for targeted photochemical oxidation and / or conversion of chemical compounds and for disinfecting liquid media, in particular for bacterial disinfection.
  • a reactor according to the invention is suitable for synthetic chemistry. This is especially true if it has at least one light source, the light with a wavelength between 320 nm and Emit 400 nm. For disinfection purposes, light sources with an emission wavelength between 220 nm and 320 nm are preferably used.
  • a reactor as a synthesis reactor for the targeted photochemical conversion of chemical compounds, as an oxidation reactor and for the disinfection of a liquid medium is the subject of the present invention.
  • the chemical compounds are irradiated in a liquid medium with at least one LED, preferably with at least two LEDs. This is done in particular using a reactor according to the invention.
  • the use of LEDs in particular brings with it advantages that the intensity of the radiation is very flexibly adjustable.
  • the intensity of the radiation can also be adjusted by selective switching on or off of individual LEDs.
  • the frequency spectrum of the radiation can also be set by selectively connecting or disconnecting individual LEDs with different emission wavelengths.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un réacteur servant à envoyer de la lumière dans un milieu, de préférence en écoulement, comprenant au moins une source lumineuse qui émet de la lumière à une longueur d'onde comprise entre 200 nm et 500 nm, au moins un corps creux avec une paroi qui est au moins partiellement translucide pour la lumière ayant la longueur d'onde indiquée, ainsi que de préférence un boîtier qui entoure ledit ou lesdits corps creux. Ladite ou chaque source lumineuse est une diode électroluminescente (DEL). L'invention concerne par ailleurs l'utilisation d'un tel réacteur comme réacteur d'oxydation et de synthèse et pour la désinfection de milieux liquides, ainsi qu'un procédé de transformation photochimique ciblée de composés chimiques.
PCT/EP2009/002892 2008-04-21 2009-04-21 Réacteur à ultraviolets et ses utilisations WO2009129993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810021301 DE102008021301A1 (de) 2008-04-21 2008-04-21 UV-Reaktor und seine Verwendung
DE102008021301.2 2008-04-21

Publications (1)

Publication Number Publication Date
WO2009129993A1 true WO2009129993A1 (fr) 2009-10-29

Family

ID=40852458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/002892 WO2009129993A1 (fr) 2008-04-21 2009-04-21 Réacteur à ultraviolets et ses utilisations

Country Status (2)

Country Link
DE (1) DE102008021301A1 (fr)
WO (1) WO2009129993A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012114027A1 (fr) 2011-02-24 2012-08-30 Universite D'aix-Marseille Reacteur utilisable pour la depollution des fluides et procede d'utilisation
CN103145884A (zh) * 2013-03-19 2013-06-12 中国海洋石油总公司 光引发溶液聚合的实验仪器
AT514097A1 (de) * 2013-03-28 2014-10-15 Fachhochschule Technikum Wien Vorrichtung zur Flüssigkeitsentkeimung
WO2021242648A1 (fr) * 2020-05-24 2021-12-02 Purdue Research Foundation Réacteur photochimique pour synthèse en phase solide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014015049B4 (de) 2014-10-15 2018-03-01 EurA Consult AG Vorichtung zur Behandlung eines Fluids mit UV-Strahlung
DE102014015642B4 (de) * 2014-10-23 2018-06-28 Jürgen Axmann Vorrichtung zur Entkeimung von Flüssigkeiten durch Direkteinwirkung von UVC-LED-Strahlung und deren Verwendung
DE102018002089A1 (de) 2018-03-15 2019-09-19 Jürgen Axmann UVC-LED-Entkeimungsmodul für flüssige Medien

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002083570A1 (fr) * 2001-04-12 2002-10-24 Carmignani Gary M Appareil et procede de purification et de desinfection photocatalytique d'eau et eau ultrapure
US20050042743A1 (en) * 2002-07-11 2005-02-24 Chihiro Kawai Porous semiconductor and process for producing the same
WO2006134567A1 (fr) * 2005-06-17 2006-12-21 Koninklijke Philips Electronics N.V. Systeme d'epuration de fluide a emetteurs de lumiere ultraviolette
WO2008156813A1 (fr) * 2007-06-20 2008-12-24 Uvcleaning Systems, Inc. Photoréacteur à ultraviolets pour la purification de fluides

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29607581U1 (de) 1996-04-26 1996-12-05 Frank, Andreas, 76227 Karlsruhe UV-Flanschreaktor zur Einstrahlung von ultraviolettem Licht in ein Reaktionsmedium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002083570A1 (fr) * 2001-04-12 2002-10-24 Carmignani Gary M Appareil et procede de purification et de desinfection photocatalytique d'eau et eau ultrapure
US20050042743A1 (en) * 2002-07-11 2005-02-24 Chihiro Kawai Porous semiconductor and process for producing the same
WO2006134567A1 (fr) * 2005-06-17 2006-12-21 Koninklijke Philips Electronics N.V. Systeme d'epuration de fluide a emetteurs de lumiere ultraviolette
WO2008156813A1 (fr) * 2007-06-20 2008-12-24 Uvcleaning Systems, Inc. Photoréacteur à ultraviolets pour la purification de fluides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012114027A1 (fr) 2011-02-24 2012-08-30 Universite D'aix-Marseille Reacteur utilisable pour la depollution des fluides et procede d'utilisation
CN103145884A (zh) * 2013-03-19 2013-06-12 中国海洋石油总公司 光引发溶液聚合的实验仪器
AT514097A1 (de) * 2013-03-28 2014-10-15 Fachhochschule Technikum Wien Vorrichtung zur Flüssigkeitsentkeimung
WO2021242648A1 (fr) * 2020-05-24 2021-12-02 Purdue Research Foundation Réacteur photochimique pour synthèse en phase solide

Also Published As

Publication number Publication date
DE102008021301A1 (de) 2009-10-22

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