DE2546579A1 - Continuous sepn. of oil-in-water emulsions - by ultrafiltration with subsidiary oil separator working in parallel - Google Patents
Continuous sepn. of oil-in-water emulsions - by ultrafiltration with subsidiary oil separator working in parallelInfo
- Publication number
- DE2546579A1 DE2546579A1 DE19752546579 DE2546579A DE2546579A1 DE 2546579 A1 DE2546579 A1 DE 2546579A1 DE 19752546579 DE19752546579 DE 19752546579 DE 2546579 A DE2546579 A DE 2546579A DE 2546579 A1 DE2546579 A1 DE 2546579A1
- Authority
- DE
- Germany
- Prior art keywords
- oil
- subsidiary
- emulsion
- parallel
- ultrafiltration
- 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.)
- Pending
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
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/085—Thickening liquid suspensions by filtration with membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Verfahren zum Spalten von Öl-in-Wasser-EmulsionenProcess for breaking oil-in-water emulsions
Unter den bekannten Verfahren zum Spalten von Ö1-in-Wasser-Emulsionen zeichnet sich das.U-rafiltrationsverfahren dadurch aus, daß es ohne Zusatz von Chemikalien mit verhältnismäßig geringentEnerg}ekosten arbeitet und ein sehr reines, den gesetzlichen Vorschriften entsprechendes Abwasser liefert. Diesen Vorzügen stehen als Nachteile gegenüber, daß das Ultrafiltrationsverfahren nicht kontinuierlich, sondern nur chargenweise betrieben werden kann, und daß das der Emulsion entzogene Öl noch sehr viel Wasser - in der Größenordnung von 50 Prozent - enthält, was eine Nachverdampfung in einer separaten Anlage erforderlich macht.Among the known methods for breaking oil-in-water emulsions Das.U-rafiltration process is characterized by the fact that it does not require the addition of chemicals works with relatively low energy costs and a very pure, legal one Provides waste water in accordance with regulations. These advantages stand out as disadvantages opposed to the fact that the ultrafiltration process is not continuous, but only batchwise can be operated, and that the oil withdrawn from the emulsion still has a great deal of water - in the order of 50 percent - contains what a re-evaporation in one requires a separate system.
Zur Ermöglichung eines kontinuierlichen Betriebes ist vorgeschlagen worden (Patentanmeldung P 25 28 990), die in den Kreislauf des TTltrafilters eingespeiste Emulsion vorzuentölen und dem Kreislauf kontinuierlich oder in Intervallen einen angemessenen Anteil der durch das Ausfiltern von Wasser im TTltrafilter mit Öl angereicherten Emulsion zu entnehmen, zu entölen und einen entsprechenden Anteil vorentölter Emulsion wieder in den Kreislauf einzubringen.It is proposed to enable continuous operation been (patent application P 25 28 990), which fed into the circuit of the TTltrafilters Pre-de-oiling the emulsion and adding it to the circuit continuously or at intervals appropriate proportion of the oil enriched by filtering out water in the TTltrafilter To remove the emulsion, to remove oil and a corresponding portion of the previously oiled emulsion to be reintroduced into the cycle.
Das Vorentölen der in den Emulsionskreislauf einzuspeisenden Emulsion und das gleichzeitige Entölen der über den U-?ilterkreislauf mit Öl angereicherten Emulsion bedingt entweder eine abwechselnde Benutzung der zusätzlichen Trenneinrichtung fiir diese beiden Aufgaben, oder aber es müssen zwei Trenneinrichtungen dafür vorgesehen werden.The pre-de-oiling of the emulsion to be fed into the emulsion circuit and the simultaneous de-oiling of those enriched with oil via the filter circuit emulsion requires either an alternating use of the additional separating device for these two tasks, or two separating devices must be provided for this will.
Der Erfindung liegt die Aufgabe zugrunde, ein kontinuierlich betreibbares Verfahren zum Spalten von Öl-in-Wasser-Emulsionen unter Verwendung des Ultrafiltrationsverfahrens zu entwickeln, welches zu seiner Durchführung einen kleineren apparativen Aufwand benötigt, als das Verfahren gemäß der benannten Voranmeldung. Dies wird erfindvnesffemäß dadurch erreicht, daß in einem dsm Kreislauf des U#trafilters para#le# geschalteten Kreislauf, dem Kreislaufbehälter ein Teil strom entnommen, das in diesem enthaltene Öl in einer an sich bekannten, chemisch, physikalisch oder kombiniert chemischphysikalisch arbeitenden Trenneinrihtung weitgehend abgeschiden und die verbleibende ölhaltige Restemulsion wieder dem gemeinsamen Kreislaufbehälter zuge f iihrt wird.The invention is based on the object of a continuously operable Process for breaking oil-in-water emulsions using the ultrafiltration process to develop, which requires a small amount of equipment for its implementation required than the procedure according to the named pre-registration. This becomes inventive achieved in that in a dsm circuit of the U # trafilters para # le # switched Circuit, a part of the current contained in this is taken from the circuit container Oil in a per se known, chemically, physically or combined chemically and physically working Trenneinrihtung largely separated and the remaining oil-containing Residual emulsion is fed back to the common circulation tank.
Gemäß der beigefügten Schemazeichnung wird die zu spaltende Emulsion einem Kreislaufbehälter 1 iiber eine Leitung 2 zugeführt. Ein Niveauregler 3 begrenzt die zugeführte Flüssigkeitsmenge. Eine Pumpe 4 fördert die zu spaltende Emulsion aus dem Kreislaufbehälter 1 durch ein Ultrafilter 5, in dem ein Teil des in der Emulsion enthaltenen Wassers ausgeschieden und in einen Behälter 6 bzw. direkt in einen Abwasserkanal abgeleitet wird. Die durch das Ausfiltern von Wasser mit Öl angereicherte Emulsion fließt ilber eine Leitung 7 zurück in den Kreislaufbehälter 1.According to the attached schematic drawing, the emulsion to be split is a circulation tank 1 via a line 2 is supplied. A level controller 3 is limited the amount of liquid supplied. A pump 4 conveys the emulsion to be split from the circulation tank 1 through an ultrafilter 5, in which part of the in the Emulsion contained water excreted and in a container 6 or directly in a sewer is derived. The by filtering out water with oil Enriched emulsion flows via a line 7 back into the circulation tank 1.
Eine weitere Pumpe 8 fördert einen Teilstrom über eine Leitung 9 aus dem Kreislaufbehälter 1 in eine Entölungseinrichtung 10, die weitgehend entwässertes Öl in einen Behälter 11 abscheidet. Die nach der Abscheidung des Öles verbleibende ölhaltige Restemulsion fließt aus der Entölungseinrichtung 10 über eine Leitung 12 zurück in den Kreislaufbehälter 1.Another pump 8 conveys a partial flow one Line 9 from the circulation tank 1 in a de-oiling device 10, which largely dehydrated oil separates into a container 11. The one after the separation of the oil any remaining oil-containing residual emulsion flows over from the de-oiling device 10 a line 12 back into the circulation tank 1.
Die Entölungseinrichtung kann von beliebiger Art sein, es kann dafür ein chemisches, oder ein physikalisches oder alxch ein kombiniertes Verfahren zur Anwendung gelangen. Die beiden gemeinsam zur Anwendung kommenden Verfahren ergänzen und beeinflußen sich gegenseitig in ihrer Wirkung und ermöglichen so eine kontinuierliche Arbeitsweise, derzufolge die Apparatur für die in einen Betrieb anfallende bestimmte Menge zu spaltender Emulsion kleiner gehalten werden kann als bei einem einstufigen Verfahren.The de-oiling device can be of any type, it can be for this a chemical, or a physical or alxch a combined process for Application. Supplement the two procedures that are used together and influence each other in their effect and thus enable a continuous Mode of operation, according to which the equipment for the particular one that arises in a company The amount of emulsion to be split can be kept smaller than with a single-stage Procedure.
Patentanspruch: Claim:
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752546579 DE2546579A1 (en) | 1975-10-17 | 1975-10-17 | Continuous sepn. of oil-in-water emulsions - by ultrafiltration with subsidiary oil separator working in parallel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752546579 DE2546579A1 (en) | 1975-10-17 | 1975-10-17 | Continuous sepn. of oil-in-water emulsions - by ultrafiltration with subsidiary oil separator working in parallel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2546579A1 true DE2546579A1 (en) | 1977-09-01 |
Family
ID=5959412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752546579 Pending DE2546579A1 (en) | 1975-10-17 | 1975-10-17 | Continuous sepn. of oil-in-water emulsions - by ultrafiltration with subsidiary oil separator working in parallel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2546579A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227999A (en) * | 1978-02-24 | 1980-10-14 | Heinrich Frings Gmbh & Co. Kg | Ultrafiltration process and apparatus |
US4265642A (en) * | 1979-03-01 | 1981-05-05 | Abcor, Inc. | Process of removal of solvent vapors |
EP0312347A1 (en) * | 1987-10-15 | 1989-04-19 | Separation Dynamics Inc | Separation of water from hydrocarbons and halogenated hydrocarbons |
DE3831976A1 (en) * | 1988-09-21 | 1990-03-29 | Henkel Kgaa | METHOD FOR DISPOSAL OF USED OIL / WATER EMULSIONS |
EP0557803A1 (en) * | 1992-02-28 | 1993-09-01 | ULTRAFILTER GmbH | Separation device for oil/water mixtures |
FR2692164A1 (en) * | 1992-06-16 | 1993-12-17 | Elf Antar France | Process for ultrafiltration of stabilized emulsions |
EP0706811A1 (en) * | 1994-10-14 | 1996-04-17 | ZEPPELIN TECHNOLOGIE GmbH | Process for separating fat and oil from waste water containing tensides, separation installation and device for breaking an emulsion in a separation installation |
EP0713719A3 (en) * | 1994-11-25 | 1996-06-05 | Hellmers Herm J Gmbh | |
EP0730894A2 (en) * | 1995-03-09 | 1996-09-11 | HYDAC FILTERTECHNIK GmbH | Phase separation process and apparatus |
-
1975
- 1975-10-17 DE DE19752546579 patent/DE2546579A1/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227999A (en) * | 1978-02-24 | 1980-10-14 | Heinrich Frings Gmbh & Co. Kg | Ultrafiltration process and apparatus |
US4265642A (en) * | 1979-03-01 | 1981-05-05 | Abcor, Inc. | Process of removal of solvent vapors |
EP0312347A1 (en) * | 1987-10-15 | 1989-04-19 | Separation Dynamics Inc | Separation of water from hydrocarbons and halogenated hydrocarbons |
DE3831976A1 (en) * | 1988-09-21 | 1990-03-29 | Henkel Kgaa | METHOD FOR DISPOSAL OF USED OIL / WATER EMULSIONS |
EP0361201A1 (en) * | 1988-09-21 | 1990-04-04 | Henkel Kommanditgesellschaft auf Aktien | Process to dispose of spent oil-water emulsions |
WO1990003332A1 (en) * | 1988-09-21 | 1990-04-05 | Henkel Kommanditgesellschaft Auf Aktien | A process for disposing of used oil/water emulsions |
EP0557803A1 (en) * | 1992-02-28 | 1993-09-01 | ULTRAFILTER GmbH | Separation device for oil/water mixtures |
FR2692164A1 (en) * | 1992-06-16 | 1993-12-17 | Elf Antar France | Process for ultrafiltration of stabilized emulsions |
WO1993025298A1 (en) * | 1992-06-16 | 1993-12-23 | Elf Antar France | Process for ultrafiltration of stabilized emulsions |
EP0706811A1 (en) * | 1994-10-14 | 1996-04-17 | ZEPPELIN TECHNOLOGIE GmbH | Process for separating fat and oil from waste water containing tensides, separation installation and device for breaking an emulsion in a separation installation |
EP0713719A3 (en) * | 1994-11-25 | 1996-06-05 | Hellmers Herm J Gmbh | |
EP0730894A2 (en) * | 1995-03-09 | 1996-09-11 | HYDAC FILTERTECHNIK GmbH | Phase separation process and apparatus |
EP0730894A3 (en) * | 1995-03-09 | 1997-11-05 | HYDAC FILTERTECHNIK GmbH | Phase separation process and apparatus |
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Legal Events
Date | Code | Title | Description |
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OHJ | Non-payment of the annual fee |