EP1003604B1 - System zum einbringen eines gases in eine flüssigkeit zur durchführung chemischer oder biochemischer reaktionen mit oder ohne suspensionspartikeln - Google Patents

System zum einbringen eines gases in eine flüssigkeit zur durchführung chemischer oder biochemischer reaktionen mit oder ohne suspensionspartikeln Download PDF

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Publication number
EP1003604B1
EP1003604B1 EP99911885A EP99911885A EP1003604B1 EP 1003604 B1 EP1003604 B1 EP 1003604B1 EP 99911885 A EP99911885 A EP 99911885A EP 99911885 A EP99911885 A EP 99911885A EP 1003604 B1 EP1003604 B1 EP 1003604B1
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EP
European Patent Office
Prior art keywords
gas
orifice
jet
dispersion
liquid
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.)
Expired - Lifetime
Application number
EP99911885A
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English (en)
French (fr)
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EP1003604A1 (de
Inventor
Roger Botton
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Individual
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Individual
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Filing date
Publication date
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Publication of EP1003604A1 publication Critical patent/EP1003604A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • B01F25/211—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being surrounded by guiding tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/25—Mixing by jets impinging against collision plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8362—Mixing plants; Combinations of mixers combining mixing with other treatments with chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle

Definitions

  • the invention relates to a system for dispersing a gas in the form of bubbles in a liquid according to claim. This, to carry out chemical, biochemical reactions or simple exchanges between the gas and the liquid or the gas and a solid suspended in the liquid.
  • bubble columns agitated tanks or, in large water treatment basins, surface aerators.
  • the dispersion is carried out by a distributor made up of a plate or tubes, judiciously perforated to distribute the gas over the entire section of the column.
  • the gas is injected under an agitator which disperses it.
  • gas and liquid are stirred by an agitator located near the surface.
  • the dispersion system does not include a distributor or agitator.
  • the invention also relates to the use of the system to replace the gas distributor. in the bubble columns, the gas distributor and the agitator in the agitated tanks as well as the aerators in wastewater treatment tanks. This use makes it possible to disperse, in at the same time as gas, fine powders likely to play a role in transformations chemical, biochemical or physical.
  • the tank is filled with water to its spillway, then the orifice is supplied with water, taken from the bottom of the tank, whose flow rate is slowly increased.
  • the jet progresses down the tube D o then reaches the impact plate on which it crashes, dispersing the air it has conveyed.
  • the dispersed gas is abundant enough to invade the entire volume of the tank located above the impact plate. Then this done, this volume of dispersion is enriched more and more in bubbles while the weir discharges volumes of water equal to those of the gas bubbles present in the dispersion.
  • the bubble volumes per unit of dispersion volume thus obtained correspond first to those of the bubble columns, then reach those noted in the agitated tanks and then become greater than the latter. During this experiment, no bubble was conveyed until the suction of the pump.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)

Claims (4)

  1. Ein Apparat der dazu dient, ein Gas in eine Flüssigkeit zu dispersieren.
       Der Apparat besteht hauptsächlich aus einem Rohr das Dispersionsrohr, in dem Flüssigkeit und Gas eingeführt werden :
    die Flüssigkeit durch eine Koaxiale Leitung, die am oberen Ende in das Dispersionsrohr mündet.
    das Gas durch Öffnungen im Dispersionsrohr.
    Die Mischung Gas-Flüssigkeit schlägt gegen eine Platte, die am unteren Ende des Dispersionsrohres angebracht ist, und deren Distanz zu diesen Ende vorzüglich 0,5-0,6 Mal Do sein soll, Do=Durchmesser des Dispersionsrohres.
  2. Ein Apparat nach Ansprüch 1, in dem der Durchmesser do der Zugangs leitung der Flüssigkeit vorzüglich 2,5 Mal Kleiner ist als derjenige des Dispersionsrohres, also Do=2,5do.
  3. Ein Apparat nach Ansprüchen 1 und 2, in dem das Dispersionsrohr am oberen, eingetauchten Teile weitere Öffnungen aufweist, die der Flüssigkeit Zugang zum Dispersionsrohr geben.
  4. Ein Apparat nach Ansprüchen 1, 2, 3, in dem die Flüssigkeit unter der Platte herausgeführt wird, um recycliert zu werden. Die Distanz der Platte zum Behälter soll vorzüglich grösser sein als 3 Do.
EP99911885A 1998-04-07 1999-04-06 System zum einbringen eines gases in eine flüssigkeit zur durchführung chemischer oder biochemischer reaktionen mit oder ohne suspensionspartikeln Expired - Lifetime EP1003604B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9804597 1998-04-07
FR9804597A FR2776942B1 (fr) 1998-04-07 1998-04-07 Dispositif pour disperser un gaz dans un liquide en vue d'effectuer des reactions chimiques, biochimiques ou de simples echanges physiques avec ou sans particules en suspension
PCT/FR1999/000793 WO1999051331A1 (fr) 1998-04-07 1999-04-06 Dispositif pour disperser un gaz dans un liquide en vue d'effectuer des reactions chimiques, biochimiques avec ou sans particules en suspension

Publications (2)

Publication Number Publication Date
EP1003604A1 EP1003604A1 (de) 2000-05-31
EP1003604B1 true EP1003604B1 (de) 2003-07-02

Family

ID=9525187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99911885A Expired - Lifetime EP1003604B1 (de) 1998-04-07 1999-04-06 System zum einbringen eines gases in eine flüssigkeit zur durchführung chemischer oder biochemischer reaktionen mit oder ohne suspensionspartikeln

Country Status (4)

Country Link
EP (1) EP1003604B1 (de)
DE (1) DE69909217D1 (de)
FR (1) FR2776942B1 (de)
WO (1) WO1999051331A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10010287B4 (de) * 2000-02-25 2004-02-12 Infineon Technologies Ag Verfahren zur Herstellung von flüssigen Gemischen für das chemisch-mechanische Polieren von Wafern
US9421505B2 (en) 2013-03-11 2016-08-23 Creative Water Solutions, Llc Turbulent flow devices and methods of use
FR3018206A1 (fr) 2014-03-07 2015-09-11 Degremont Procede et dispositif de dispersion de gaz dans un liquide

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH600938A5 (de) * 1975-12-10 1978-06-30 Sulzer Ag
GB2222098B (en) * 1988-08-24 1992-03-18 Exxon Research Engineering Co Improvements in and relating to contacting of plural distinct fluid phases
DE4237369A1 (de) * 1992-11-05 1994-05-11 Salzgitter Anlagenbau Reaktorkonstruktionen für die Methylformiatsynthese

Also Published As

Publication number Publication date
DE69909217D1 (de) 2003-08-07
EP1003604A1 (de) 2000-05-31
FR2776942A1 (fr) 1999-10-08
WO1999051331A1 (fr) 1999-10-14
FR2776942B1 (fr) 2000-05-05

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