WO2008104144A2 - Procédé pour séparer des liquides à plusieurs composants dans un évaporateur moléculaire - Google Patents

Procédé pour séparer des liquides à plusieurs composants dans un évaporateur moléculaire Download PDF

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Publication number
WO2008104144A2
WO2008104144A2 PCT/DE2008/000143 DE2008000143W WO2008104144A2 WO 2008104144 A2 WO2008104144 A2 WO 2008104144A2 DE 2008000143 W DE2008000143 W DE 2008000143W WO 2008104144 A2 WO2008104144 A2 WO 2008104144A2
Authority
WO
WIPO (PCT)
Prior art keywords
evaporator
liquid
stripping medium
chamber
evaporator chamber
Prior art date
Application number
PCT/DE2008/000143
Other languages
German (de)
English (en)
Other versions
WO2008104144A3 (fr
Inventor
Gunter Mix
Original Assignee
Buss-Sms-Canzler Gmbh Zweigniederlassung Düren
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 Buss-Sms-Canzler Gmbh Zweigniederlassung Düren filed Critical Buss-Sms-Canzler Gmbh Zweigniederlassung Düren
Publication of WO2008104144A2 publication Critical patent/WO2008104144A2/fr
Publication of WO2008104144A3 publication Critical patent/WO2008104144A3/fr
Priority to NO20092871A priority Critical patent/NO342859B1/no

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/12—Molecular distillation

Definitions

  • a method for separating multicomponent liquids in a short path he evaporated and short path evaporator
  • the invention relates to a method for separating multicomponent liquids according to the features in the preamble of patent claim 1.
  • Short-path evaporators therefore consist of columnar evaporator chambers, in which a condenser device is installed directly in the evaporator chamber. Between the condenser device and the evaporator device, a film-forming device is arranged, which is generally a rotating wiper system.
  • the product is fed to the head of the short path evaporator and distributed by the film forming device on the outer evaporator device.
  • a lighter-boiling liquid component thereby at least partially evaporates and deposits on the condenser.
  • the distillate thus obtained flows down the condenser and can be withdrawn at the bottom of the short path evaporator.
  • the concentrate remaining on the evaporator device is the stripped product, which has to some extent been purified from the lower boiler, and which can likewise be taken off at the bottom of the evaporator device.
  • the invention is based on the object of further increasing a method for separating multicomponent liquids in a short-path evaporator with the aid of a stripping medium with regard to its performance and simultaneously simplifying the process.
  • This object is achieved in the method with the features of claim 1.
  • Suitable short-path evaporators for carrying out the method are the subject matter of patent claims 10 and 11.
  • a vacuum is generated in a short-path evaporator.
  • the short-path evaporator is configured in the shape of a column and has an outer, heatable evaporator device and, in the interior, a condenser device. Between the evaporator means and the condenser means there is provided a film forming means for producing a liquid film formed by the multi-component liquid. With the aid of the evaporator device, a lower-boiling liquid component can be expelled from the multicomponent liquid by evaporation, at least partially.
  • the process according to the invention should be carried out in a pressure range in which pressures of less than 1 mbar prevail.
  • the pressures are less than 0.1 mbar.
  • a range of 0.1 - 0.001 mbar is considered to be particularly useful.
  • this high vacuum range there are special process conditions that cause the lower-boiling liquid component to accelerate out of the multicomponent liquid. This is supported by the fact that in the evaporator chamber, a low-boiling stripping medium is introduced, which is condensed together with the lower-boiling liquid component at the condenser device and liquid is withdrawn from the evaporator chamber.
  • the stripping medium is not previously added to the multicomponent liquid in liquid form, but is introduced separately from this into the evaporator chamber.
  • the stripping medium is located within the evaporator chamber only in a vapor or gaseous state of matter.
  • the stripping medium can therefore be introduced directly into the vaporization chamber in vapor or gaseous form become.
  • the stripping medium may also be an overheated liquid which, on entering the evaporator chamber, passes directly into the gaseous state.
  • the separation process can be carried out in a short path evaporator particularly effectively in the high vacuum range, so that temperature-sensitive, multi-component liquids can be processed gently, without them before a stripping medium would have to be added.
  • the pressure loss between the evaporator device and the capacitor device is as small as possible.
  • the pressure loss is a power of 10 less than the prevailing in the evaporator chamber mean pressure.
  • the pressure loss between the evaporator device and the condenser device is preferably in a range of 0.01 bar.
  • the pressure drop should be as small as possible, i. be as small as 0.0001 mbar.
  • the stripping medium leads to a change in the partial pressures in the evaporator device, with the result that the lower-boiling liquid component is displaced from the gas phase.
  • the lighter-boiling liquid component aims for a state of equilibrium or saturation. The presence of the gaseous stripping medium therefore effectively accelerates the evaporation of the lower-boiling liquid component from the multicomponent liquid.
  • the stripping medium is introduced into the surface of the liquid film opposite to the evaporation chamber.
  • the stripping medium can therefore be introduced, for example, via the film-forming device, the so-called rotor, and distributed over it.
  • the film forming device is with provided corresponding pipelines having a plurality of openings. The openings face the surface of the liquid film, so that the stripping medium is directed to a certain extent directly on the surface of the liquid film.
  • the introduction of the stripping medium can in this case take place via a rotor shaft of the film-forming device.
  • a piping arrangement in the region of the condenser device, via which the stripping medium is introduced into the evaporator chamber.
  • a piping arrangement is mounted stationary in contrast to the film forming device, wherein a corresponding number of openings or nozzles in the piping arrangement is in turn directed to the surface of the liquid film. This also makes it possible to introduce the stripping medium near the surface.
  • the lighter-boiling liquid component may be soluble in the stripping medium so that the stripping medium, together with the lower-boiling component as the distillate, dissolves.
  • the inventive method is feasible with a short path evaporator, as it is the subject of claim 10, i. in which the stripping medium can be introduced into the evaporator chamber via a rotor shaft of the film-forming device.
  • the introduction of the stripping medium follows via a pipe arrangement placed in the region of the condensation device.
  • the stationary piping arrangement can be the condensation arrangement surrounded like a cage.
  • the film-forming device is anyway configured cage-like, so that the stripping medium is applied uniformly within the evaporator chamber and in the vicinity of the surface of the evaporator device.
  • FIG. 1 shows a schematic representation of a short-path evaporator 1.
  • the short-path evaporator 1 comprises a columnar evaporator chamber 2, which is heated on the outside by an evaporator device 3.
  • a condensation device 4 In the center of the evaporator chamber 2 is a condensation device 4.
  • a film forming device 5 Between the evaporator device 3 and the condensation device 4 is a film forming device 5 in the form of a driven by a drive 9, cage-like wiper system. To separate a multicomponent liquid, it is fed via a connection 6 into the short-path evaporator 1.
  • the film-forming device 5 distributes the liquid on the heating surface 8 of the evaporator device 3, so that a lower-boiling liquid component is vaporized and at least partially expelled from the multicomponent liquid.
  • the vaporized, lower-boiling liquid component condenses on the condenser device 4 and can be withdrawn from the latter in the form of a condensate at a connection 7 on the bottom side of the evaporator chamber 2.
  • the concentrate remaining on a heating surface 8 of the evaporator device runs down the heating surface 8 and is discharged from the evaporator chamber 2 via a further connection 9.
  • the evaporator chamber 2 there is a vacuum.
  • the pressure is in a range of less than 1 mbar.
  • an exhaust 10 is arranged in the lower region of the short-path evaporator.
  • a stripping medium in gaseous form is introduced into the evaporator chamber 2. This is done via a rotor shaft 11, by means of which the film-forming device is driven becomes.
  • the stripping medium is introduced from the rotor shaft 11, starting in at least one arm of the cage-like rotor and enters from there into the evaporator chamber 2 a.
  • a plurality of outlet openings 12 are provided on the film-forming device 5, which point to the heating surface 8, so that the gaseous stripping medium comes into contact with the liquid film on the surface of the evaporator device 3 and forces the lighter-boiling liquid component emerging there to escape from the liquid.
  • the gaseous stripping medium also precipitates on the condenser device 4 and is discharged together with the condensed, lower-boiling liquid component as condensate via the connection 7 from the evaporator chamber 3.
  • the embodiment of Figure 2 differs from that of Figure 1 only in that the stripping medium is not introduced via the rotor shaft, but via a separate pipe assembly 13 in the evaporator chamber 2.
  • the piping arrangement 13 is located between the condenser device 4 and the film-forming device 5. Also in this configuration, outlet openings 14 in the piping arrangement 13 on the heating surface 8 of the evaporator device 3, so that the gaseous stripping medium comes in contact with the surface of the liquid film as close as possible ,
  • the stripping medium is introduced via a connection 15 in the region of the condenser 4 from below into the evaporator chamber 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Selon l'invention, pour séparer des liquides à plusieurs composants dans un évaporateur moléculaire (1), il est prévu d'introduire un milieu séparateur à faible point d'ébullition, sous forme gazeuse dans la chambre d'évaporation (2), séparément du liquide à évaporer, une pression inférieure à 1 mbar régnant dans la chambre d'évaporation. Le milieu séparateur est introduit sous forme gazeuse dans la chambre d'évaporation (2), par l'intermédiaire d'un dispositif à action filmogène (5) ou par l'intermédiaire d'un système de tuyauterie placé côté condenseur.
PCT/DE2008/000143 2007-02-28 2008-01-25 Procédé pour séparer des liquides à plusieurs composants dans un évaporateur moléculaire WO2008104144A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20092871A NO342859B1 (no) 2007-02-28 2009-08-20 Fremgangsmåte for separering av flerkomponentsvæsker i en kortbanet fordamper, samt en kortbanet fordamper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710010080 DE102007010080B4 (de) 2007-02-28 2007-02-28 Verfahren zum Trennen von mehrkomponentigen Flüssigkeiten in einem Kurzwegverdampfer sowie Kurzwegverdampfer
DE102007010080.0 2007-02-28

Publications (2)

Publication Number Publication Date
WO2008104144A2 true WO2008104144A2 (fr) 2008-09-04
WO2008104144A3 WO2008104144A3 (fr) 2008-11-13

Family

ID=39616607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000143 WO2008104144A2 (fr) 2007-02-28 2008-01-25 Procédé pour séparer des liquides à plusieurs composants dans un évaporateur moléculaire

Country Status (3)

Country Link
DE (1) DE102007010080B4 (fr)
NO (1) NO342859B1 (fr)
WO (1) WO2008104144A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104645652A (zh) * 2013-11-20 2015-05-27 重庆山巨化工机械有限公司 高效自动补偿短程蒸馏装置及工艺
CN111714914A (zh) * 2020-07-07 2020-09-29 山东禹王生态食业有限公司 一种防跑料的闪蒸罐
US11241637B2 (en) 2019-08-12 2022-02-08 Buss-Sms-Canzler Gmbh Device for the thermal treatment of material, in particular for the thermal separation of material components contained in the material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007843A1 (de) * 2008-02-07 2009-08-13 Vta Verfahrenstechnische Anlagen Gmbh Verfahren und Vorrichtung zur Abtrennung von Verunreinigungen aus Fett und/oder Öl
CN108355370A (zh) * 2017-07-01 2018-08-03 石城县松湖林业化工有限公司 一种松脂油加工用蒸馏装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004901A (en) * 1959-09-16 1961-10-17 Leybold Hochvakuum Anlagen Apparatus for fractional distillation
US3737378A (en) * 1969-02-01 1973-06-05 Kao Corp Deodorizing method by film and steam distillation
EP0189610A1 (fr) * 1984-12-19 1986-08-06 Shell Internationale Researchmaatschappij B.V. Procédé et dispositif pour la distillation moléculaire d'un mélange d'hydrocarbure liquide
WO2004007654A1 (fr) * 2002-07-11 2004-01-22 Pronova Biocare As Procede et fluide de travail volatile reduisant les polluants environnementaux presents dans des graisses ou des huiles, supplement dietetique, et produit alimentaire pour animaux
DE102006012866A1 (de) * 2006-03-19 2007-04-19 Uic Gmbh Verfahren zur Abtrennung leichtflüchtiger Komponenten aus einem Stoffgemisch sowie Vorrichtung zur Durchführung dieses Verfahrens

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10024418B4 (de) * 2000-05-19 2006-01-05 Buss-Sms-Canzler Gmbh Kurzwegverdampfer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004901A (en) * 1959-09-16 1961-10-17 Leybold Hochvakuum Anlagen Apparatus for fractional distillation
US3737378A (en) * 1969-02-01 1973-06-05 Kao Corp Deodorizing method by film and steam distillation
EP0189610A1 (fr) * 1984-12-19 1986-08-06 Shell Internationale Researchmaatschappij B.V. Procédé et dispositif pour la distillation moléculaire d'un mélange d'hydrocarbure liquide
WO2004007654A1 (fr) * 2002-07-11 2004-01-22 Pronova Biocare As Procede et fluide de travail volatile reduisant les polluants environnementaux presents dans des graisses ou des huiles, supplement dietetique, et produit alimentaire pour animaux
DE102006012866A1 (de) * 2006-03-19 2007-04-19 Uic Gmbh Verfahren zur Abtrennung leichtflüchtiger Komponenten aus einem Stoffgemisch sowie Vorrichtung zur Durchführung dieses Verfahrens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104645652A (zh) * 2013-11-20 2015-05-27 重庆山巨化工机械有限公司 高效自动补偿短程蒸馏装置及工艺
US11241637B2 (en) 2019-08-12 2022-02-08 Buss-Sms-Canzler Gmbh Device for the thermal treatment of material, in particular for the thermal separation of material components contained in the material
CN111714914A (zh) * 2020-07-07 2020-09-29 山东禹王生态食业有限公司 一种防跑料的闪蒸罐

Also Published As

Publication number Publication date
WO2008104144A3 (fr) 2008-11-13
NO342859B1 (no) 2018-08-20
DE102007010080B4 (de) 2014-11-20
NO20092871L (no) 2009-08-20
DE102007010080A1 (de) 2008-09-04

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