EP0808890B1 - Verfahren und Vorrichtung zur adsorptiven Reinigung von pflanzlichen und/oder mineralischen Ölen und Fetten - Google Patents

Verfahren und Vorrichtung zur adsorptiven Reinigung von pflanzlichen und/oder mineralischen Ölen und Fetten Download PDF

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Publication number
EP0808890B1
EP0808890B1 EP97108383A EP97108383A EP0808890B1 EP 0808890 B1 EP0808890 B1 EP 0808890B1 EP 97108383 A EP97108383 A EP 97108383A EP 97108383 A EP97108383 A EP 97108383A EP 0808890 B1 EP0808890 B1 EP 0808890B1
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EP
European Patent Office
Prior art keywords
stage
oil
filter
grease
separating
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 - Lifetime
Application number
EP97108383A
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German (de)
English (en)
French (fr)
Other versions
EP0808890A3 (de
EP0808890A2 (de
Inventor
Peter Dr. Dipl.-Ing. Transfeld
Gunter Dipl.-Ing. Börner
Matthias Dipl.-Ing. Schneider
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OEHMI AKTIENGESELLSCHAFT
Original Assignee
Ohmi AG
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Publication date
Application filed by Ohmi AG filed Critical Ohmi AG
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Publication of EP0808890A3 publication Critical patent/EP0808890A3/de
Application granted granted Critical
Publication of EP0808890B1 publication Critical patent/EP0808890B1/de
Anticipated expiration legal-status Critical
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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
    • C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
    • C10G25/06—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with moving sorbents or sorbents dispersed in the oil
    • 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
    • C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • C10G53/08—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one sorption step
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B3/00—Refining fats or fatty oils
    • C11B3/10—Refining fats or fatty oils by adsorption

Definitions

  • the invention relates to a method and an apparatus for adsorptive Cleaning of vegetable and / or mineral oils and fats in a multi-stage process Countercurrent process.
  • Such methods and devices are for example from DE 41 24 331 C2 known.
  • This second separation stage now holds the adsorbent and the other components absorbed by this adsorbent.
  • This Adsorbent - that is the core idea of a counterflow system - should now be in the first stage to be added to the unpurified oil, as this is only partial loaded adsorbent can still fulfill its cleaning purpose there.
  • the object of the invention is to propose a method and a device, with which this problem can be counteracted.
  • This object is achieved in one method in that in the second Separation stage the components filtered out of the oil or fat as pumpable sludge extracted and / or processed and in the absence of air in the first stage to be conveyed to the unpurified oil or fat.
  • this object is achieved in that the second separation stage has a device which the separated components as pumpable sludge processed and this via a line with air exclusion can be fed to the first stage.
  • Bleaching earth is primarily considered as the adsorbent; this designation is used in the following, without being restricted to this Absorb type is meant to mean. It is also possible to use activated carbon and Silica gel, e.g. Trisyl, or also of mixtures; the bleaching earth can of course or be activated.
  • the consistency of the sludge should preferably be mentioned, for example as follows:
  • the Liquid content is over 30% to ensure good pumpability guarantee. It should also be less than 80%, since an even higher one Liquid proportion is not required and this way the Oil back-mixing keeps in the frame. To keep the mud pumpable, more oil is simply retained in the separation stage and reused and returned to the first stage. This is quite effective, must but of course not take place indefinitely.
  • the temperature should be above 60 ° C, since this is also the temperature Pumpability is very accommodating. In known methods, mostly tries to keep this temperature as low as possible because of high temperatures if there is air contact, of course, the reaction with the damaging oxygen occurs immediately promote. According to the invention, this risk no longer plays a role, so that the Advantage of high temperature can be used without the state of the art Technology to accept the simultaneous disadvantage.
  • a candle filter or candle pressure filter is preferred in the second separation stage used.
  • This type of filter is also called Puls Tube Filter or Cricket filters or Contibac filters from different providers known.
  • the second separation stage would also be the use other filters, for example continuously operating filters, or hydrocyclones possible, but is less preferred.
  • This dosage can also be controlled in addition so that the cone is emptied between two cake drops. This can be done simply by determining the amount of that is in the cone Filter cake and then appropriate time-dosed emptying.
  • a plate filter or a Niagara filter can be used be used, which is used in conventional normal driving style.
  • acid in particular phosphoric acid or citric acid
  • the addition of acid can be done by adding more water be supplemented. It is preferred if the amount of acid itself is a maximum of 3000 ppm. It is also preferred if the amount of water is a maximum of 0.6%.
  • Uncleaned oil 1 or fat is added to the system treated as described below and leaves as cleaned and bleached oil 2 or fat the process.
  • oils and fats vegetable and / or mineral origin all meant; the procedure can be applied to a variety of different oils and fats.
  • Fresh bleaching earth 3 (or another Adsorbent) are supplied; this adsorbent also leaves after several process steps as loaded adsorbent 4 together with the undesirable oil accompanying substances or components of the oil or fat, for example the dyes, the process.
  • the unpurified oil 1 may become a first together with acid 8 Stage 11 fed.
  • this first stage 11 it is used and already partially loaded adsorbent brought into contact, with a motor M for a vigorous mixing ensures and steam 6 supplied to the temperature of the oil becomes.
  • the details of level 11 correspond to the usual, it is a stirrer provided in addition to various baffles.
  • the partially loaded adsorbent decreases from the heavily contaminated oil liquid due to the gradient effect still corresponding oil accompanying substances or dyes on by the oil be given this way.
  • the entire mixture is then over one Pump 12 discharged from stage 11 and in Figure 1 to the right in a first separation stage transferred.
  • the first separation stage has two filters 15 and 16, which are parallel are switched and work alternately: whenever one of the two Filters 15 and 16 must be cleaned, the other runs.
  • the filters 15, 16 of the first separation stage now filter from the mixture supplied the now heavily loaded adsorbent with all undesirable oil accompanying substances and color components and collect them in schematically indicated Collecting containers 17. From there they are taken out of the cycle, like represented by arrow 4. Filters 15 and 16 are e.g. around Niagara filter or plate filter.
  • the oil or fat is now pre-cleaned and leaves as such - marked at 18 - the first separation stage 15, 16. Under certain circumstances, again Acid 8 or water can be supplied.
  • This now pre-cleaned oil 18 is mixed in a stirrer 23 with fresh adsorbent 3, this Mixture is then fed from the stirrer 23 into the second stage 21.
  • steam 6 is supplied to the temperature of the oil, both in the stirrer 23 and vacuum 5 is again applied in the second stage 21.
  • the Functioning of the second stage 21 is basically similar to the first stage 11:
  • the gradient effect leads here to the fresh adsorbent 3 pre-cleaned oil 18 the dyes and accompanying oils still contained in turn can effectively withdraw.
  • This mixture is now via the pump 22 again promoted and as a mixture 28 of relatively well cleaned oil and Adsorbent with the corresponding loads and color particles second separation stage 25 supplied.
  • This second separation stage 25 is the core of the system or the invention.
  • the second separation stage 25 has a candle filter or a candle pressure filter, in the industry also as a pulse tube filter or cricket filter or Contibac filter known. These filters have a cone in their lower area.
  • the filter candles on the filter fabric become discontinuous forming filter cake, consisting of loaded adsorbent and oil, discarded. This dropping takes place in such a way that the resulting filter cake is still sludge-shaped, i.e. one in comparison to the prior art still contains a relatively large proportion of oil. This amount of liquid is between 30% and 80% of the filter sludge formed. This filter sludge falls into the cone below and fills it up to a certain height.
  • This Filling level is sensed by suitable sensors, which in this way provide a impart appropriate knowledge of the filling condition.
  • suitable sensors which in this way provide a impart appropriate knowledge of the filling condition.
  • the speed of the filling state continuous continuation of the filter sludge or filter cake 29. This is because it is metered from the Cone of the second separation stage 25 in the first stage 11 to that supplied there Uncleaned oil 1 or fat fed, so at the beginning of the process.
  • the Filter sludge is now used and used as that already mentioned above partially loaded adsorbent 29 used and with the unpurified oil mixed. The process then continues with him.
  • the continuous supply of partially loaded adsorbent from the second Separation stage 25 to first stage 11 can be done without disturbing the process occasionally interrupted, for example, during the Filter cake discharge no disturbances through the line in the first stage should arrive. If over a more or less short period of time The supply of filter sludge is interrupted, this has to do with the actual Cleaning process has little impact.
  • the filling level in the cone of the second separation stage 25 moves periodically between 0% and 100%. Immediately before a filter cake is dropped Filling level about 0%, namely if the filter cake from the previous one Filter cleaning is pumped into stage 11. Immediately after a filter cake is dropped the fill level is 100%.
  • the second separation stage 25 itself then leaves the completely cleaned after filtration Oil or fat at 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Microbiology (AREA)
  • Wood Science & Technology (AREA)
  • Fats And Perfumes (AREA)
  • Treatment Of Sludge (AREA)
  • Cleaning In General (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
EP97108383A 1996-05-23 1997-05-23 Verfahren und Vorrichtung zur adsorptiven Reinigung von pflanzlichen und/oder mineralischen Ölen und Fetten Expired - Lifetime EP0808890B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19620695 1996-05-23
DE19620695A DE19620695C1 (de) 1996-05-23 1996-05-23 Verfahren und Vorrichtung zur adsorptiven Reinigung von pflanzlichen und/oder mineralischen Ölen und Fetten

Publications (3)

Publication Number Publication Date
EP0808890A2 EP0808890A2 (de) 1997-11-26
EP0808890A3 EP0808890A3 (de) 1999-05-06
EP0808890B1 true EP0808890B1 (de) 2002-01-23

Family

ID=7795071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108383A Expired - Lifetime EP0808890B1 (de) 1996-05-23 1997-05-23 Verfahren und Vorrichtung zur adsorptiven Reinigung von pflanzlichen und/oder mineralischen Ölen und Fetten

Country Status (11)

Country Link
US (1) US5753103A (pt)
EP (1) EP0808890B1 (pt)
CN (1) CN1073149C (pt)
BR (1) BR9703388A (pt)
CA (1) CA2206032C (pt)
DE (1) DE19620695C1 (pt)
ID (1) ID17420A (pt)
IN (1) IN182570B (pt)
MX (1) MX9703820A (pt)
RU (1) RU2188852C2 (pt)
TR (1) TR199700421A3 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19711174A1 (de) * 1997-03-18 1998-09-24 Oehmi Forsch & Ingtech Gmbh Verfahren und Vorrichtung zum Reinigen von Verunreinigungen enthaltenden Flüssigkeiten
DE102007031039A1 (de) * 2007-07-04 2009-01-08 Süd-Chemie AG Verfahren zur schonenden Raffination von Pflanzenölen mit Naturbleicherde
US8232419B2 (en) * 2008-10-02 2012-07-31 The Dallas Group Of America Triacylglycerol purification by a continuous regenerable adsorbent process
DE102011053103A1 (de) 2010-09-02 2012-03-22 G+R Technology Group Ag Einrichtung und verfahren zur gewinnung von öl und/oder fett aus öl- und/oder fetthaltigem wässerigen abfall
CN102827634B (zh) * 2012-09-05 2015-07-22 新疆现代石油化工股份有限公司 提高基础油粘度指数的吸附分离装置及方法
CN104903015B (zh) 2012-11-02 2018-06-22 罗伯特·许德克林儿 从生物废物或生物质中获得至少一种纯净物的设备和方法
CN103937543A (zh) * 2014-04-21 2014-07-23 沈阳化工大学 废旧轮胎裂解油脱色、脱臭的方法
CN104946304A (zh) * 2015-06-12 2015-09-30 宁夏宝塔石化科技实业发展有限公司 一种劣质柴油的脱色、除臭一体化装置及方法
CN106237651B (zh) * 2016-08-31 2018-04-27 山东新和成氨基酸有限公司 一种液固体系动态吸附的方法及其装置
CN108236015A (zh) * 2016-12-27 2018-07-03 丰益(上海)生物技术研发中心有限公司 亚麻籽油油脂组合物
CN106867660A (zh) * 2017-04-27 2017-06-20 武汉轻工大学 一种米糠混合油的净化方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB700234A (en) * 1948-11-04 1953-11-25 Girdler Corp Improvements in or relating to method of bleaching petroleum or fatty oils
DE4124331C2 (de) * 1991-07-23 1993-11-25 Oehmi Forsch & Ingtech Gmbh Verfahren und Vorrichtung zur adsorptiven Reinigung von pflanzlichen und/oder mineralischen Ölen und Fetten

Also Published As

Publication number Publication date
EP0808890A3 (de) 1999-05-06
TR199700421A2 (xx) 1997-12-21
CN1174881A (zh) 1998-03-04
DE19620695C1 (de) 1997-05-15
BR9703388A (pt) 2000-06-20
MX9703820A (es) 1998-04-30
US5753103A (en) 1998-05-19
CA2206032C (en) 2006-11-21
ID17420A (id) 1997-12-24
CA2206032A1 (en) 1997-11-23
CN1073149C (zh) 2001-10-17
RU2188852C2 (ru) 2002-09-10
EP0808890A2 (de) 1997-11-26
IN182570B (pt) 1999-05-08
TR199700421A3 (tr) 1997-12-21

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