DE942519C - Process for improving the odor of waste oil refined products - Google Patents

Process for improving the odor of waste oil refined products

Info

Publication number
DE942519C
DE942519C DEB28592A DEB0028592A DE942519C DE 942519 C DE942519 C DE 942519C DE B28592 A DEB28592 A DE B28592A DE B0028592 A DEB0028592 A DE B0028592A DE 942519 C DE942519 C DE 942519C
Authority
DE
Germany
Prior art keywords
alcohol
odor
improving
caustic
waste oil
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
DEB28592A
Other languages
German (de)
Inventor
Johannes Schultze
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.)
Michael Barthel & Co Chemische
Original Assignee
Michael Barthel & Co Chemische
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 Michael Barthel & Co Chemische filed Critical Michael Barthel & Co Chemische
Priority to DEB28592A priority Critical patent/DE942519C/en
Application granted granted Critical
Publication of DE942519C publication Critical patent/DE942519C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING 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
    • C10G19/00—Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment

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  • 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)
  • Fats And Perfumes (AREA)

Description

Verfahren zur Geruchsverbesserung von Altölraffinaten Die bei der Regenerierung von Altölen anfallenden Raffinate haben trotz intensiver Raffination mit Säure, Alkali und Bleicherden nach Beseitigung der niedrigsiedenden Ölanteile durch Destillation einen unangenehmen Geruch, wodurch sich die Regenerate deutlich von Neuölraffmaten unterscheiden.Process for improving the odor of waste oil refinates Regeneration of waste oils have accumulated raffinates despite intensive refining with acid, alkali and fuller's earth after removal of the low-boiling oil components distillation gives off an unpleasant odor, which clearly shows the regenerated material differ from Neuölraffmaten.

Die unangenehmen Geruchsträger dürften auf Zusatzstoffe von Kraftstoffen, Ölzusätzen sowie auf den Schwefelgehalt der Dieselkraftstoffe zurückzuführen sein, die bei der Destillation bei Temperaturen von =50° und darüber zersetzt und durch das Bleichen mit Bleicherden besonders stark aktiviert werden.The unpleasant odor carriers are likely to be due to additives in fuels, Oil additives as well as the sulfur content of diesel fuels, which decomposes and penetrates during the distillation at temperatures of = 50 ° and above bleaching can be particularly strongly activated with fuller's earth.

Wie nun gefunden wurde, lassen sich die unangenehmen Geruchsträger durch ein sich an die Raffination anschließendes Auswaschen oder Auskochen mit einem alkoholischen Ätzalkali, Erdalkalihydrat oder mit Alkohol enthaltendem Ammoniak völlig entfernen. Zur Ausführung des Verfahrens kann z. B. mit Methyh oder Äthylalkohol versetzte Ätznatron-oder Ätzkalilauge Verwendung finden, ferner in Alkohol aufgeschwemmtes Calciumhydrat oder mit Alkohol vermischter Ammoniak.- Das hiermit behandelte Regenerat unterscheidet sich geruchlich nicht mehr von Neuölraffinaten. Gleichzeitig werden die Neutralisationszahlen und die Verseifungszahl günstig beeinlußt.As has now been found, the unpleasant odor carriers by washing or boiling with a after refining alcoholic caustic alkali, alkaline earth metal hydrate or ammonia containing alcohol remove completely. To carry out the method, for. B. with methyl or ethyl alcohol offset caustic soda or caustic potash are used, furthermore in alcohol Floated calcium hydrate or ammonia mixed with alcohol treated regrind no longer differs in smell from new oil refined. At the same time, the neutralization numbers and the saponification number are favorably influenced.

Das Auswaschen kann auf Waschkolonnen im Gegenstromprinzip, das Auskochen in heizbaren, geschlossenen, mit Rückflußkühlung und mit Rührwerken versehenen Kesseln erfolgen. Aus den behandelten Ölen wird der anhaftende Alkohol verdampft; dann wird mit Wasser ausgewaschen und getrocknet.The washing can be done on washing columns using the countercurrent principle, the boiling in heatable, closed boilers equipped with reflux cooling and stirrers take place. The adhering alcohol is evaporated from the treated oils; Then it will be washed out with water and dried.

Beispiel 3ooo kg Regenerat werden mit 5oo kg einer Lauge, die aus 25o kg Methyl- oder Äthylalkohol und 25o kg einer Ätznatronlauge von 3o° B6 besteht, im Rückfuß 1/2 Stunde gekocht und dann der Ruhe überlassen. Die sich absetzende alkoholische Lauge wird abgezogen; sie kann bis zur Erschöpfung, des Alkaligehaltes wieder Verwendung finden. Aus dem. abgesetzten Öl wird der anhaftende Alkohol durch Erhitzen entfernt. Das Öl wird mit heißem Wasser nachgewaschen und getrocknet.Example 300 kg of regenerate are mixed with 500 kg of a lye made from Consists of 25o kg of methyl or ethyl alcohol and 25o kg of caustic soda solution of 30 ° B6, Boiled in the hindfoot for 1/2 hour and then left to rest. The settling alcoholic lye is withdrawn; it can go up to exhaustion, the alkali content find use again. From the. The settled oil is carried through by the adhering alcohol Heating removed. The oil is washed with hot water and dried.

Claims (2)

PATENTANSPRÜCHE: r. Verfahren zur Geruchsverbesserung von Altölraffinaten, dadurch gekennzeichnet, daß die Öle nach erfolgter Raffination mit alkoholischem Ätzalkali, wie meihanol- oder äthanolhaltiger Ätznatron- oder Ätzkalilauge, einem in Alkohol aufgeschwemmten Erdalkalihydrat, wie Calciumhydrat, oder einer mit Alkohol vermischten Ammoniaklösung ausgewaschen oder ausgekocht werden. PATENT CLAIMS: r. Process for improving the odor of refined oil, characterized in that after refining the oils are washed out or washed out with alcoholic caustic alkali, such as caustic soda or caustic potash solution containing meihanol or caustic potash, an alkaline earth metal hydrate suspended in alcohol, such as calcium hydrate, or an ammonia solution mixed with alcohol. 2. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß das Öl nach Trennung von der sich absetzenden alkoholischen Lauge durch Erhitzen von dem anhaftenden Alkohol befreit, dann mit heißem Wasser ausgewaschen und anschließend getrocknet wird. Angezogene Druckschriften: USA.-Patentschrift Nr. 1672 3o4.2. The method according to claim r, characterized in that the oil is freed after separation from the settling alcoholic liquor by heating of the adhering alcohol, then washed with hot water and then dried. Energized publications:. USA. Patent No. 1,672 3o4.
DEB28592A 1953-11-28 1953-11-28 Process for improving the odor of waste oil refined products Expired DE942519C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB28592A DE942519C (en) 1953-11-28 1953-11-28 Process for improving the odor of waste oil refined products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB28592A DE942519C (en) 1953-11-28 1953-11-28 Process for improving the odor of waste oil refined products

Publications (1)

Publication Number Publication Date
DE942519C true DE942519C (en) 1956-05-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEB28592A Expired DE942519C (en) 1953-11-28 1953-11-28 Process for improving the odor of waste oil refined products

Country Status (1)

Country Link
DE (1) DE942519C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1672304A (en) * 1924-08-18 1928-06-05 Standard Oil Co California Process of purifying mineral oils

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1672304A (en) * 1924-08-18 1928-06-05 Standard Oil Co California Process of purifying mineral oils

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