WO2000076617A1 - Verfahren und vorrichtung zur emulsionsspaltung - Google Patents
Verfahren und vorrichtung zur emulsionsspaltung Download PDFInfo
- Publication number
- WO2000076617A1 WO2000076617A1 PCT/EP2000/004529 EP0004529W WO0076617A1 WO 2000076617 A1 WO2000076617 A1 WO 2000076617A1 EP 0004529 W EP0004529 W EP 0004529W WO 0076617 A1 WO0076617 A1 WO 0076617A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- emulsion
- carbon dioxide
- tubular reactor
- heated
- splitting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/041—Breaking emulsions with moving devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/042—Breaking emulsions by changing the temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/044—Breaking emulsions by changing the pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/047—Breaking emulsions with separation aids
Definitions
- the invention relates to a method and a device for emulsion splitting, in which the emulsion is mixed with carbon dioxide and heated.
- Oil-in-water emulsions occur, for example, in metalworking as cooling lubricants or as oil-contaminated washing water for cleaning parts that are contaminated with oil and grease. Because of the high oil content, this waste water must not be discharged into the sewage system. They are either sent to a waste disposal company or processed to reduce the amount to be disposed of. An attempt is made to split the emulsion into an oil and a water phase in order to treat the water phase until it can be discharged into the sewage system (Bernd Penth, "Emulsion splitting with carbonic acid", Process Magazine, March 1991, pages 68-69).
- a fission can by physical processes (adsorption), thermal processes (combustion, heating, evaporation), chemical processes (acid splitting, salt splitting, splitting by organic polymers), electrochemical processes (formation of hydroxides of polyvalent metals from sacrificial anodes), as well as mechanical
- Relatively stable emulsions can also be broken down with the help of carbon dioxide. It is essential for the emulsion splitting to be carried out under increased pressure and at a higher temperature (Bernd Penth, "Emulsion splitting with carbonic acid", Regen Magazine, March 1991, pages 68-69).
- the invention has for its object to overcome the disadvantages of the prior art and to provide a method and an apparatus in which a splitting of relatively difficult to separate oil-in-water emulsions is possible with relatively simple technical means.
- the object on which the invention is based is achieved by a process in which carbon dioxide is added and heated to the emulsion, which is characterized in that the emulsion is optionally pretreated, heated and fed to a tubular reactor, which is then fed to the tubular reactor with carbon dioxide and that the mixture of emulsion and carbon dioxide is expanded at the outlet end of the tubular reactor, the oil phase separating from the water phase.
- the object on which the invention is based is also achieved by a process in which carbon dioxide is added and heated to the emulsion, which is characterized in that the emulsion is optionally pretreated, optionally heated and fed to a tubular reactor and then to the tubular reactor Carbon dioxide is supplied, that the mixture of emulsion and carbon dioxide is then heated in the tubular reactor, and that the mixture of emulsion and carbon dioxide is expanded at the outlet end of the tubular reactor, the oil phase separating from the water phase.
- emulsion is to be understood in particular as meaning oil-in-water emulsions which essentially contain oil, water and, if appropriate, anionic emulsifier or emulsifier combination of anionic and nonionic surfactants and, if appropriate, further auxiliaries.
- the emulsion is heated to a temperature of 20 to 100 ° C, preferably 60 to 100 ° C, particularly preferably 60 to 80 ° C.
- This has the advantage that the subsequent splitting with carbon dioxide is easier to implement.
- the measure leads to a large concentration of carbon dioxide being dissolved.
- a device for carrying out the method which has a source of carbon dioxide, which source is connected to a tube reactor with a tube bundle, in particular a tube coil or tube coil, optionally with a static mixing device, to which tube reactor the emulsion is fed, the tube reactor having a heating device and a relief valve at the outlet end of the tube bundle in order to expand the mixture of the emulsion and the carbon dioxide into a container.
- a device for carrying out the method which has a source of carbon dioxide, which source is connected to a tube reactor with a tube bundle, in particular a tube coil or tube coil, optionally with a static mixing device, to which tube reactor the emulsion is fed, the tube reactor having a heating device and a relief valve at the outlet end of the tube bundle in order to expand the mixture of the emulsion and the carbon dioxide into a container.
- the figure shows the schematic structure of the plant with a tubular reactor.
- An oil-in-water emulsion is fed via a line 1 to a filter 2 in order to separate suspended matter in the emulsion.
- the emulsion is then compressed by a pump 3 to a pressure of up to approximately 12 bar and fed to a flow meter 4.
- the emulsion in line 5 is carbon dioxide via a line 6, a flow meter 7, a nozzle 8, for example a flat jet nozzle such as a Lechler nozzle, and then adjoining it
- the line 5 has two check valves 10, 11.
- the check valve 10 is arranged in front of the point at which the carbon dioxide is fed into the line 5.
- the emulsion flows here in line 5 with a volume flow of 1.6 to 8.3 l / min.
- the check valve 11 is arranged in front of a tubular reactor 12, to which the emulsion with the carbon dioxide is then fed.
- the tubular reactor 12 preferably has a static mixer. It has a volume of, for example, 250 I.
- the mixture of the emulsion and the carbon dioxide discharged from the tubular reactor 12 via a line 13 is adjusted to a pressure of approx and led away via a line 16.
- the mixture is then let down (not shown here) in order to separate the oil phase from the water phase.
- the device described above was used, for example, in a process for splitting a drilling emulsion.
- a temperature of 40 to 45 ° C. and a pressure of 8 to 12 bar were set as process parameters.
- the mineral hydrocarbon content, measured according to DIN 8409, was less than 3200 mg / l before treatment and less than 170 mg / l after cleavage. Compared to the prior art processes described at the outset, this enabled the emulsion to be split without the addition of acids which had a lasting effect on the quality of the waste water.
- a process for breaking emulsions in which the emulsion is mixed with carbon dioxide and is heated, characterized in that the emulsion is pretreated if necessary. Is heated and fed to a tube reactor, that carbon dioxide is then fed to the tube reactor, and that on the output side At the end of the tube reactor, the mixture of emulsion and carbon dioxide is expanded, the oil phase separating from the water phase.
- a process for breaking emulsions in which the emulsion is mixed with carbon dioxide and is heated, characterized in that the emulsion is optionally pretreated, optionally heated and fed to a tubular reactor, that the tubular reactor is then supplied with carbon dioxide, that then Mixture of emulsion and carbon dioxide is heated in the tubular reactor and that the mixture of emulsion and carbon dioxide is expanded at the outlet end of the tubular reactor, the oil phase of the
- the device for carrying out the method according to claim 1 which has a source of carbon dioxide, which source is connected to a tube reactor with a tube bundle, in particular a coil or tube coil, optionally with a static mixing device, which
- the reactor is fed to the tube reactor, the tube reactor having a heating device and a relief valve at the outlet end of the tube bundle in order to expand the mixture of the emulsion and the carbon dioxide into a container.
Abstract
Description
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU56746/00A AU5674600A (en) | 1999-06-11 | 2000-05-19 | Method and device for separating an emulsion |
EP00941962A EP1196228A1 (de) | 1999-06-11 | 2000-05-19 | Verfahren und vorrichtung zur emulsionsspaltung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19926577.1 | 1999-06-11 | ||
DE19926577A DE19926577A1 (de) | 1999-06-11 | 1999-06-11 | Verfahren und Vorrichtung zur Emulsionsspaltung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000076617A1 true WO2000076617A1 (de) | 2000-12-21 |
Family
ID=7910869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/004529 WO2000076617A1 (de) | 1999-06-11 | 2000-05-19 | Verfahren und vorrichtung zur emulsionsspaltung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1196228A1 (de) |
AU (1) | AU5674600A (de) |
DE (1) | DE19926577A1 (de) |
WO (1) | WO2000076617A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015102789A1 (en) * | 2013-12-30 | 2015-07-09 | Saudi Arabian Oil Company | Demulsification of emulsified petroleum using carbon dioxide and resin supplement without precipitation of asphaltenes |
US9394489B2 (en) | 2013-12-16 | 2016-07-19 | Saudi Arabian Oil Company | Methods for recovering organic heteroatom compounds from hydrocarbon feedstocks |
US9688923B2 (en) | 2014-06-10 | 2017-06-27 | Saudi Arabian Oil Company | Integrated methods for separation and extraction of polynuclear aromatic hydrocarbons, heterocyclic compounds, and organometallic compounds from hydrocarbon feedstocks |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10137388A1 (de) * | 2001-07-31 | 2003-02-13 | Feuerverzinkung Hannover Gmbh | Verfahren zur Aufbereitung von Entfettungsbädern |
DE10311289A1 (de) * | 2003-03-14 | 2004-09-23 | Minitec Engineering Gmbh | Verfahren zur Aufbereitung von Öl-Wasser-Emulsionen |
DE102007059389A1 (de) * | 2007-07-21 | 2009-06-10 | Universität Dortmund | Verfahren zur Aufarbeitung von koaleszenzgehemmten Emulsionen aus Ganzzell-Biotransformationen mit komprimierten oder überkritischen Gasen |
DE102007034258A1 (de) * | 2007-07-21 | 2009-01-22 | Universität Dortmund | Verfahren zur Aufarbeitung von koaleszenzgehemmten Emulsionen aus Ganzzell-Biotransformationen mit Kohlendioxid |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4028904C1 (en) * | 1990-09-12 | 1992-07-16 | Synthesechemie Dr. Penth Gmbh, 6600 Saarbruecken, De | Dissociating used coolant or lubricant - comprises saturating with carbon di:oxide under pressure to separate organic and aq. phase |
DE4333318A1 (de) * | 1993-09-30 | 1995-04-06 | Wilhelm Schilling | Verfahren zur Aufarbeitung von Öl- in Wasser-Emulsionen |
US5435920A (en) * | 1991-01-15 | 1995-07-25 | Koch Berthold | Method of separating emulsions |
DE19754756C1 (de) * | 1997-12-10 | 1999-04-22 | Messer Griesheim Gmbh | Verfahren und Vorrichtung zur Spaltung einer ölhaltigen, wäßrigen Emulsion |
-
1999
- 1999-06-11 DE DE19926577A patent/DE19926577A1/de not_active Withdrawn
-
2000
- 2000-05-19 EP EP00941962A patent/EP1196228A1/de not_active Withdrawn
- 2000-05-19 AU AU56746/00A patent/AU5674600A/en not_active Abandoned
- 2000-05-19 WO PCT/EP2000/004529 patent/WO2000076617A1/de not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4028904C1 (en) * | 1990-09-12 | 1992-07-16 | Synthesechemie Dr. Penth Gmbh, 6600 Saarbruecken, De | Dissociating used coolant or lubricant - comprises saturating with carbon di:oxide under pressure to separate organic and aq. phase |
US5435920A (en) * | 1991-01-15 | 1995-07-25 | Koch Berthold | Method of separating emulsions |
DE4333318A1 (de) * | 1993-09-30 | 1995-04-06 | Wilhelm Schilling | Verfahren zur Aufarbeitung von Öl- in Wasser-Emulsionen |
DE19754756C1 (de) * | 1997-12-10 | 1999-04-22 | Messer Griesheim Gmbh | Verfahren und Vorrichtung zur Spaltung einer ölhaltigen, wäßrigen Emulsion |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9394489B2 (en) | 2013-12-16 | 2016-07-19 | Saudi Arabian Oil Company | Methods for recovering organic heteroatom compounds from hydrocarbon feedstocks |
WO2015102789A1 (en) * | 2013-12-30 | 2015-07-09 | Saudi Arabian Oil Company | Demulsification of emulsified petroleum using carbon dioxide and resin supplement without precipitation of asphaltenes |
US9169446B2 (en) | 2013-12-30 | 2015-10-27 | Saudi Arabian Oil Company | Demulsification of emulsified petroleum using carbon dioxide and resin supplement without precipitation of asphaltenes |
KR20160107219A (ko) * | 2013-12-30 | 2016-09-13 | 사우디 아라비안 오일 컴퍼니 | 아스팔텐의 침전 없이 이산화탄소 및 수지 보충물을 사용한 유화된 석유의 해유화 |
KR101995702B1 (ko) | 2013-12-30 | 2019-07-03 | 사우디 아라비안 오일 컴퍼니 | 아스팔텐의 침전 없이 이산화탄소 및 수지 보충물을 사용한 유화된 석유의 해유화 |
US9688923B2 (en) | 2014-06-10 | 2017-06-27 | Saudi Arabian Oil Company | Integrated methods for separation and extraction of polynuclear aromatic hydrocarbons, heterocyclic compounds, and organometallic compounds from hydrocarbon feedstocks |
Also Published As
Publication number | Publication date |
---|---|
EP1196228A1 (de) | 2002-04-17 |
DE19926577A1 (de) | 2000-12-14 |
AU5674600A (en) | 2001-01-02 |
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