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DE752778C - Process for dewatering raw oil emulsions - Google Patents

Process for dewatering raw oil emulsions

Info

Publication number
DE752778C
DE752778C DEI69721D DEI0069721D DE752778C DE 752778 C DE752778 C DE 752778C DE I69721 D DEI69721 D DE I69721D DE I0069721 D DEI0069721 D DE I0069721D DE 752778 C DE752778 C DE 752778C
Authority
DE
Germany
Prior art keywords
oil emulsions
raw oil
crude oil
water
dewatering raw
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
Application number
DEI69721D
Other languages
German (de)
Inventor
August Dr Moeller
Otto Dr Troesken
Werner Dr Zerweck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI69721D priority Critical patent/DE752778C/en
Application granted granted Critical
Publication of DE752778C publication Critical patent/DE752778C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G33/00Dewatering or demulsification of hydrocarbon oils
    • C10G33/04Dewatering or demulsification of hydrocarbon oils with chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Entwässerung von Roherdölemulsionen Bekanntlich ist es bei Roherdölemulsionen, bei denen Wasser im Erdöl in feinster Verteilung emulgiert auftritt, zwecks Gewinnung des Erdöls in destillierbarer Form erforderlich, das Wasser in möglichst weitgehendem Maße vom Erdöl zu trennen. Man bedient sich dazu in neuester Zeit vielfach eines chemischen Spaltungsverfahrens, das darin besteht, daß ein die Trennung von Wasser und Öl veranlassendes oder erleichterndes Mittel der Roherdölemulsion zugesetzt wird, und dann die Mischung, zweckmäßig bei höheren Temperaturen von z. B. 5o bis 8oP, bis zur eintretenden Spaltung sich selbst überlassen bleibt. Das weitgehend entwässerte Erdöl ist dann unmittelbar zur weiteren Verarbeitung in den üblichen Destillationsanlagen der Petroleumraffinerien geeignet.Process for the dewatering of crude oil emulsions It is known that in crude oil emulsions, in which water occurs emulsified in the crude oil in finest distribution, in order to obtain crude oil in a distillable form, it is necessary to separate the water from crude oil to the greatest possible extent. In recent times a chemical cleavage process is often used for this purpose, which consists in adding an agent which causes or facilitates the separation of water and oil to the crude oil emulsion, and then the mixture, expediently at higher temperatures of e.g. B. 5o to 8oP, is left to itself until the split occurs. The largely dehydrated crude oil is then immediately suitable for further processing in the usual distillation systems of petroleum refineries.

Es wurde nun gefunden, daß sich die Sulfosäuren der Diester von aromatischen Dicarbonsäuren mit Alkoholen, die mindestens 6 Kohlenstoffatome enthalten, vorzüglich als Spaltungsmittel von Roherdölemulsxonen eignen. Derartige Ester sind z. B. gemäß Patentschrift 705 356 durch Umsetzen von Sulfonsäuren bzw. Salzen von aromatischen Dicarbonsäuren bzw. deren funktionellen Derivaten mit hydroxylhaltigen organischen Verbindungen erhältlich. Als sulfonierte aromatische Dicarbonsäuren seien die Sulfonsäuren der Phthalsäiure, Isophthalsäure, Terephthalsäure oder N aphthalsäure genannt, als hydroxylhaltige organische Verbindungen insbesondere gesättigte und ungesättigte Alkohole der aliphatischen Reihe mit gerader und verzweigter Kette, die mindestens 6 Kohlenstoffatome enthalten. Von derartigen Estern ist zwar bekannt, daß sie als Netz- und Reinigungsmittel bei der Behandlung von Textilien Verwendung finden können, ihre Eignung als Spaltmittel für Erdölemulsionen war aber nicht vorauszusehen, da diese Wirkung keineswegs eine mit dem kapillaraktiven Effekt bei der Textilbehandlung parallel gehende Eigenschaft ist. Beispiel i Zu je iooo kg einer deutschen Roherdölemulsion aus dem ostmärkischen Gebiet mit 30% Wasser werden ioog des Sulfophthalsäureesters aus a-Äthylhexanol der folgenden Formel eingebracht: Nach 24stündigem Stehen bei 8o' ° haben sich bereits 95% des Wassers abgeschieden und nach etwa 40 Stunden ist das Wasser vollständig entfernt.It has now been found that the sulfonic acids of the diesters of aromatic dicarboxylic acids with alcohols which contain at least 6 carbon atoms are eminently suitable as splitting agents for crude oil emulsions. Such esters are e.g. B. obtainable according to patent specification 705 356 by reacting sulfonic acids or salts of aromatic dicarboxylic acids or their functional derivatives with hydroxyl-containing organic compounds. As sulfonated aromatic dicarboxylic acids, the sulfonic acids of phthalic acid, isophthalic acid, terephthalic acid or napthalic acid may be mentioned, as hydroxyl-containing organic compounds in particular saturated and unsaturated alcohols of the aliphatic series with straight and branched chains and containing at least 6 carbon atoms. It is known of such esters that they can be used as wetting and cleaning agents in the treatment of textiles, but their suitability as splitting agents for petroleum emulsions was not foreseeable, since this effect is by no means a property that runs parallel to the capillary-active effect in textile treatment . Example i For every 1000 kg of a German crude oil emulsion from the East Mark region with 30% water, 100% of the sulfophthalic acid ester from α-ethylhexanol of the following formula are added: After standing at 80 ° for 24 hours, 95% of the water has already separated and after about 40 hours the water is completely removed.

Ein ähnliches Ergebnis erhält man, wenn man an Stelle des obengenannten Esters den entsprechenden Ester aus Normaloctylalkohol verwendet.A similar result is obtained if one replaces the above Esters used the corresponding ester from normal octyl alcohol.

Beispiel 2 Eine Roherdölemulsion aus dem niedersächsischen Erdölgebiet mit 8,4% Wasser wird je iooo kg mit i So g der im Beispiel i beschriebenen Verbindung versetzt und bei So' stehengelassen. Nach 24 Stunden sind bereits über 9o % des Wassers abgeschieden.Example 2 A crude oil emulsion from the Lower Saxony oil region with 8.4% water, iooo kg with i So g of the compound described in example i moved and left at So '. After 24 hours, over 90% of the Water separated.

Mit gleichem Erfolg läßt sich an Stelle der oben beschriebenen Verbindung ein entsprechender Ester aus einem Alkoholgemisch von 7 bis 9 Kohlenstoffatomen verwenden.The connection described above can be replaced with the same success a corresponding ester from an alcohol mixture of 7 to 9 carbon atoms use.

Claims (1)

PATENTANSPRUCH: Verfahren zur Entwässerung von Roherdölemulsionen, gekennzeichnet durch die Verwendung von Sulfosäuren von Diestern aromatischer Dicarbonsäuren mit Alkoholen, die mindestens 6 Kohlenstoffatome enthalten. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: USA.-Patentschrift Nr. 2 o78 6i55.PATENT CLAIM: Process for dewatering raw oil emulsions, characterized by the use of sulfonic acids of diesters of aromatic dicarboxylic acids with alcohols containing at least 6 carbon atoms. To delimit the subject matter of the invention From the state of the art, the following publication is to be considered in the granting procedure drawn: U.S. Patent No. 2,078,655.
DEI69721D 1941-05-30 1941-05-30 Process for dewatering raw oil emulsions Expired DE752778C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI69721D DE752778C (en) 1941-05-30 1941-05-30 Process for dewatering raw oil emulsions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI69721D DE752778C (en) 1941-05-30 1941-05-30 Process for dewatering raw oil emulsions

Publications (1)

Publication Number Publication Date
DE752778C true DE752778C (en) 1952-11-10

Family

ID=7197043

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI69721D Expired DE752778C (en) 1941-05-30 1941-05-30 Process for dewatering raw oil emulsions

Country Status (1)

Country Link
DE (1) DE752778C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166400B (en) * 1959-02-26 1964-03-26 Hoechst Ag Process for breaking petroleum emulsions

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078655A (en) * 1936-06-13 1937-04-27 Tretolite Co Process for breaking petroleum emulsions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078655A (en) * 1936-06-13 1937-04-27 Tretolite Co Process for breaking petroleum emulsions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166400B (en) * 1959-02-26 1964-03-26 Hoechst Ag Process for breaking petroleum emulsions

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