EP0174517B1 - Plant for deodorizing and/or deacidifying edible oils, fats and esters - Google Patents
Plant for deodorizing and/or deacidifying edible oils, fats and esters Download PDFInfo
- Publication number
- EP0174517B1 EP0174517B1 EP19850110248 EP85110248A EP0174517B1 EP 0174517 B1 EP0174517 B1 EP 0174517B1 EP 19850110248 EP19850110248 EP 19850110248 EP 85110248 A EP85110248 A EP 85110248A EP 0174517 B1 EP0174517 B1 EP 0174517B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- falling film
- plant
- esters
- fats
- column
- 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
Links
Classifications
-
- 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
- C11B3/12—Refining fats or fatty oils by distillation
- C11B3/14—Refining fats or fatty oils by distillation with the use of indifferent gases or vapours, e.g. steam
Definitions
- the invention relates to a plant for deodorization and / or deacidification of edible oils, fats and esters according to the principle of continuous countercurrent falling film steam distillation.
- DE-A 2914101 discloses a system for deodorising and / or deacidifying high-boiling organic compounds, in particular edible oils, esters and / or high-molecular hydrocarbons, in which the deodorized and / or deacidified Liquid at negative pressure is applied as a falling film to a falling film evaporator with vertical flow channels and carrier vapor of low molecular weight, e.g. B. steam, is passed in countercurrent to the liquid phase through the falling film evaporator.
- carrier vapor of low molecular weight e.g. B. steam
- This known system was developed with the aim of reducing the driving steam requirement compared to known systems of this type and the thermal load of cooking oil, for the treatment of which the system is preferably used, as low as possible in view of the particular thermal and oxidative sensitivity of the natural oil stabilizers to keep. Furthermore, with the known system, a better possibility of heat exchange between the outgoing and incoming liquid is to be achieved. The energy consumption and the driving steam requirement of 7-8 kg / t specified for the treatment of palm oil are still relatively high, and the thermal load is also too great in view of the desired durability of the oil products.
- the object of the invention is to develop a system for deodorising and / or deacidifying edible oils, fats and esters which operates on the principle of continuous countercurrent falling-film steam distillation and which, compared to the known systems, has a better efficiency as a result of an increased material exchange Distillation is characterized by the good separating effect of the unordered packing and due to lower propellant steam consumption and a lower plant volume.
- the system according to the invention is characterized, in addition to the advantages that can be gathered from the task, by a very good deodorization effect due to the intensive mixing of oils, fats and esters with the motive steam in the second distillation zone formed by an unordered packed bed, a substantially better tightness and thus less leakage and a reduced intake of false air and the resulting better quality of the end product as well as a very cost-effective production.
- the system which works according to the principle of continuous countercurrent falling film steam distillation, has a column 1 with a first distillation zone arranged below the feed device in the form of a distributor plate 2 for the liquid to be treated, which is formed by a tube bundle falling film evaporator 3 with vertically running trickle channels , and a second distillation zone located below the first zone, which contains an unordered packed bed 4.
- the liquid to be treated comes at a temperature below the start of decomposition via the feed line 5 to the distributor plate 2 in the column head 6, in which a negative pressure in a range of z. B. 2-10 mbar.
- the oil flows in countercurrent to the motive steam introduced via the feed 7 in the column sump 8, preferably water vapor, through the evaporator tubes and the downstream packed bed 4 downwards.
- An additional distributor for the oil between the falling film evaporator 3 and the packed bed 4 is not required.
- the mixture of motive steam and free fatty acids and other low boilers, such as, B. odorants, is withdrawn via the lead 9 and introduced into a condenser, not shown.
- the cleaned oil collecting in the column sump 8 is removed via the discharge line 10.
- the tubes of the tube bundle evaporator 3 are heated from the outside by a heating medium, which enters the lower region of the evaporator 3 via the feed line 11, in countercurrent to the oil flowing down through the tubes through the evaporator and leaves this in the upper area through the derivative 12.
Description
Die Erfindung betrifft eine Anlage zum Desodorieren und/oder Entsäuern von Speiseölen, Fetten und Estern nach dem Prinzip der kontinuierlichen Gegenstrom-Fallfilm-Treibdampfdestillation.The invention relates to a plant for deodorization and / or deacidification of edible oils, fats and esters according to the principle of continuous countercurrent falling film steam distillation.
Aus der DE-A 2914101 (s GB-A 2 046 606) ist eine Anlage zum Desodorieren und/oder Entsäuern von hochsiedenden organischen Verbindungen, insbesondere Speiseölen, Estern und/oder hochmolekularen Kohlenwasserstoffen bekannt, in der die zu desodorierende und/oder zu entsäuernde Flüssigkeit bei Unterdruck als Fallfilm auf einen Fallfilmverdampfer mit vertikalen Strömungskanälen aufgegeben wird und Trägerdampf von niedrigem Molekulargewicht, z. B. Wasserdampf, im Gegenstrom zur flüssigen Phase durch den Fallfilmverdampfer geleitet wird.DE-A 2914101 (see GB-A 2 046 606) discloses a system for deodorising and / or deacidifying high-boiling organic compounds, in particular edible oils, esters and / or high-molecular hydrocarbons, in which the deodorized and / or deacidified Liquid at negative pressure is applied as a falling film to a falling film evaporator with vertical flow channels and carrier vapor of low molecular weight, e.g. B. steam, is passed in countercurrent to the liquid phase through the falling film evaporator.
Diese bekannte Anlage wurde mit dem Ziel entwickelt, den Treibdampfbedarf gegenüber bekannten Anlagen dieser Art zu reduzieren und die thermische Belastung von Speiseöl, zu dessen Behandlung die Anlage bevorzugt eingesetzt wird, im Hinblick auf die besondere thermische und oxidative Empfindlichkeit der natürlichen Ölstabilisatoren so gering wie möglich zu halten. Ferner soll mit der bekannten Anlage eine bessere Wärmerücktauschmöglichkeit zwischen ab- und zulaufender Flüssigkeit erreicht werden. Der Energieverbrauch und der für die Behandlung von Palmöl angegebene Treibdampfbedarf von 7-8 kg/t sind noch verhältnismäßig hoch, und auch die thermische Belastung ist im Hinblick auf die angestrebte Haltbarkeit der Ölprodukte zu groß.This known system was developed with the aim of reducing the driving steam requirement compared to known systems of this type and the thermal load of cooking oil, for the treatment of which the system is preferably used, as low as possible in view of the particular thermal and oxidative sensitivity of the natural oil stabilizers to keep. Furthermore, with the known system, a better possibility of heat exchange between the outgoing and incoming liquid is to be achieved. The energy consumption and the driving steam requirement of 7-8 kg / t specified for the treatment of palm oil are still relatively high, and the thermal load is also too great in view of the desired durability of the oil products.
Eine weitere durch die DE-C 32 27 669 bekannte Anlage dieser Art mit mehreren hintereinander arbeitenden und untereinander in Dampf- und Flüssigkeitsleitung stehenden Fallfilmverdampfern wurde mit der Zielsetzung entwickelt, in einem einzigen fortlaufenden Verfahrensablauf den Anteil an freien Fettsäuren und anderen Leichtsiedern im Endprodukt auf wenigstens 0.03 Gewichtsprozent abzusenken, dabei den Treibdampfbedarf gegenüber der aus der DE-A 29 14101 bekannten Anlage noch weiter zu verringern und den Gesamtenergiebedarf pro Tonne Fertigöl erheblich abzusenken. Diese bekannte Anlage mit mindestens zwei in getrennten Kolonnen eingebauten Fallfilmverdampfern ist baulich sehr aufwendig.Another system known from DE-C 32 27 669 of this type with several successive falling film evaporators working one behind the other and standing in steam and liquid lines was developed with the aim of reducing the proportion of free fatty acids and other low boilers in the end product to at least one single process Lower 0.03 percent by weight, thereby further reducing the motive steam requirement compared to the system known from DE-A 29 14 101 and significantly reducing the total energy requirement per ton of finished oil. This known system with at least two falling film evaporators installed in separate columns is structurally very complex.
Der Erfindung liegt die Aufgabe zugrunde, eine nach dem Prinzip der kontinuierlichen Gegenstrom-Fallfilm-Treibdampfdestillation arbeitenden Anlage zum Desodorieren und/oder Entsäuern von Speiseölen, Fetten und Estern zu entwickeln, die sich gegenüber den bekannten Anlagen durch einen besseren Wirkungsgrad aufgrund eines erhöhten Stoffaustausches bei der Destillation wegen der guten Trennwirkung der ungeordneten Füllkörperschüttung und aufgrund eines niedrigeren Treibdampfverbrauches sowie ein geringeres Anlagenvolumen auszeichnet.The object of the invention is to develop a system for deodorising and / or deacidifying edible oils, fats and esters which operates on the principle of continuous countercurrent falling-film steam distillation and which, compared to the known systems, has a better efficiency as a result of an increased material exchange Distillation is characterized by the good separating effect of the unordered packing and due to lower propellant steam consumption and a lower plant volume.
Diese Aufgabe ist erfindungsgemäß gelöst durch eine Anlage mit dem Merkmal im Kennzeichen des Patentanspruches 1.This object is achieved according to the invention by a system with the feature in the characterizing part of patent claim 1.
Zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand des Unteranspruchs.Appropriate embodiments of the invention are the subject of the dependent claim.
Die erfindungsgemäße Anlage zeichnet sich außer durch den der Aufgabenstellung entnehmbaren Vorteilen durch eine sehr gute Desodorierwirkung wegen der intensiven Durchmischung von Ölen, Fetten und Estern mit dem Treibdampf in der durch eine ungeordnete Füllkörperschüttung gebildeten zweiten Destillationszone, eine wesentlich bessere Dichtigkeit und damit eine geringere Leckage und einen verminderten Falschlufteintritt und eine daraus resultierende bessere Qualität des Endproduktes sowie eine sehr kostengünstige Erstellung aus.The system according to the invention is characterized, in addition to the advantages that can be gathered from the task, by a very good deodorization effect due to the intensive mixing of oils, fats and esters with the motive steam in the second distillation zone formed by an unordered packed bed, a substantially better tightness and thus less leakage and a reduced intake of false air and the resulting better quality of the end product as well as a very cost-effective production.
Die Erfindung ist nachstehend anhand einer in der Zeichnung schematisch dargestellten Anlage im einzelnen erläutert.The invention is explained below with reference to a plant shown schematically in the drawing.
Die nach dem Prinzip der kontinuierlichen Gegenstrom-Fallfilm-Treibdampfdestillation arbeitende Anlage weist eine Kolonne 1 auf mit einer unterhalb der Aufgabevorrichtung in Form eines Verteilerbodens 2 für die zu behandelnde Flüssigkeit angeordneten ersten Destillationszone, die durch einen Rohrbündel-Fallfilmverdampfer 3 mit vertikal verlaufenden Rieselkanälen gebildet wird, und einer unterhalb der ersten Zone befindlichen zweiten Destillationszone, die eine ungeordnete Füllkörperschüttung 4 enthält.The system, which works according to the principle of continuous countercurrent falling film steam distillation, has a column 1 with a first distillation zone arranged below the feed device in the form of a distributor plate 2 for the liquid to be treated, which is formed by a tube bundle falling film evaporator 3 with vertically running trickle channels , and a second distillation zone located below the first zone, which contains an unordered packed bed 4.
Als Füllkörper werden vorzugsweise im Handel erhältliche Körper aus geeignetem Material verwendet.Commercially available bodies made of suitable material are preferably used as the packing.
Die zu behandelnde Flüssigkeit, z. B. vorbehandeltes Speiseöl, gelangt mit einer Temperatur unterhalb des Zersetzungsbeginns über die Zuleitung 5 auf den Verteilerboden 2 im Kolonnenkopf 6, in dem ein Unterdruck in einem Bereich von z. B. 2-10 mbar herrscht.The liquid to be treated, e.g. B. pretreated cooking oil comes at a temperature below the start of decomposition via the feed line 5 to the distributor plate 2 in the column head 6, in which a negative pressure in a range of z. B. 2-10 mbar.
Das Öl fließt im Gegenstrom zu dem über die Zuführung 7 im Kolonnensumpf 8 eingeleiteten Treibdampf, vorzugweise Wasserdampf, durch die Verdampferrohre und die nachgeordnete Füllkörperschüttung 4 nach unten. Ein zusätzlicher verteiler für das Öl zwischen dem Fallfilmverdampfer 3 und der Füllkörperschüttung 4 ist nicht erfoderlich. Das sich im Kopf 6 der Kolonne 1 ansammelnde Gemisch aus Treibdampf und aus dem Öl abgetrennten freien Fettsäuren und anderen Leichtsiedern, wie z. B. Geruchsstoffen, wird über die Ableitung 9 abgezogen und in einen nicht dargestellten Kondensator eingeführt. Das sich im Kolonnensumpf 8 sammelnde gereinigte Öl wird über die Ableitung 10 entnommen.The oil flows in countercurrent to the motive steam introduced via the feed 7 in the column sump 8, preferably water vapor, through the evaporator tubes and the downstream packed bed 4 downwards. An additional distributor for the oil between the falling film evaporator 3 and the packed bed 4 is not required. The mixture of motive steam and free fatty acids and other low boilers, such as, B. odorants, is withdrawn via the lead 9 and introduced into a condenser, not shown. The cleaned oil collecting in the column sump 8 is removed via the discharge line 10.
Die Rohre des Rohrbündelverdampfers 3 werden von außen durch ein Heizmedium beheizt, das über die Zuleitung 11 in den unteren Bereich des Verdampfers 3 eintritt, im Gegenstrom zu dem durch die Rohre nach unten fließenden Öl durch den Verdampfer geleitet wird und diesen im oberen Bereich durch die Ableitung 12 verläßt.The tubes of the tube bundle evaporator 3 are heated from the outside by a heating medium, which enters the lower region of the evaporator 3 via the feed line 11, in countercurrent to the oil flowing down through the tubes through the evaporator and leaves this in the upper area through the derivative 12.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843431290 DE3431290C2 (en) | 1984-08-25 | 1984-08-25 | Plant for deodorising and / or deacidifying edible oils, fats and esters |
| DE3431290 | 1984-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0174517A1 EP0174517A1 (en) | 1986-03-19 |
| EP0174517B1 true EP0174517B1 (en) | 1988-01-13 |
Family
ID=6243868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19850110248 Expired EP0174517B1 (en) | 1984-08-25 | 1985-08-16 | Plant for deodorizing and/or deacidifying edible oils, fats and esters |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0174517B1 (en) |
| DE (1) | DE3431290C2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4280234B2 (en) | 2004-12-24 | 2009-06-17 | 花王株式会社 | Production method of fats and oils high in diglycerides |
| US20130292242A1 (en) * | 2010-10-13 | 2013-11-07 | Cognis Ip Management Gmbh | Device and method for distilling temperature-sensitive substances |
| CN115253348B (en) * | 2022-07-11 | 2023-10-20 | 山东凯斯达机械制造有限公司 | Evaporation device and technology for mixed oil of leaching system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2352859C3 (en) * | 1973-10-22 | 1979-10-11 | Hermann Dipl.-Chem. Dr. 5000 Koeln Stage | Process for degassing, dehydrating and deodorising fatty acids |
| US4024191A (en) * | 1976-04-01 | 1977-05-17 | Phillips Petroleum Company | Fractional distillation process |
| DE2914101A1 (en) * | 1979-04-07 | 1980-10-23 | Schmidding Wilh Gmbh & Co | METHOD FOR THE DESODORATION AND / OR DE-ACIDIFICATION OF HIGH-SENSITIVE ORGANIC COMPOUNDS, IN PARTICULAR OF EDIBLE OILS |
| US4483746A (en) * | 1982-06-04 | 1984-11-20 | Fmc Corporation | Process for phosphorus purification |
| DE3227669C1 (en) * | 1982-07-23 | 1983-07-07 | Hermann Dr. 4400 Münster Stage | Process and plant for deodorising and / or deacidifying edible oils, fats and esters |
| DE3323120C2 (en) * | 1983-06-27 | 1985-07-11 | Hermann Dr. 4400 Münster Stage | Process and system for deodorising and / or deacidifying cocoa butter and cocoa butter substitutes |
| DE3316523C2 (en) * | 1983-05-06 | 1986-02-06 | Fried. Krupp Gmbh, 4300 Essen | Process and device for deodorising and deacidifying fats and oils |
-
1984
- 1984-08-25 DE DE19843431290 patent/DE3431290C2/en not_active Expired
-
1985
- 1985-08-16 EP EP19850110248 patent/EP0174517B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0174517A1 (en) | 1986-03-19 |
| DE3431290C2 (en) | 1986-08-07 |
| DE3431290A1 (en) | 1986-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3302525A1 (en) | DISTILLATION COLUMN FOR THE DISTILLATIVE DISASSEMBLY OF AN INLET PRODUCT MULTIPLE FRACTIONS | |
| EP0101888B1 (en) | Process for deodorizing and/or de-acidifying cocoa butter and cocoa butter substitutes | |
| EP0419406B1 (en) | Distillation apparatus for making hydrogen peroxide | |
| EP0174517B1 (en) | Plant for deodorizing and/or deacidifying edible oils, fats and esters | |
| DE3834716A1 (en) | METHOD AND DEVICE FOR CONCENTRATING SOLUTIONS | |
| DE102010026835B4 (en) | Process for the distillation of temperature-sensitive liquids | |
| EP1329449A1 (en) | Column for the concentration of phtalic anhydride | |
| DE926485C (en) | Processes and devices for fractional distillation | |
| EP0243388B1 (en) | Installation for the continuous cracking of fats | |
| DE818355C (en) | Circulation process and plant for distillation and fractionation of tars, oils and similar hydrocarbons | |
| DE3100005C2 (en) | ||
| DE3323120C3 (en) | ||
| DE3526079A1 (en) | Unit for the thermal treatment of liquids | |
| DE3333558C2 (en) | ||
| DE19923439A1 (en) | Multistage apparatus for evaporating water from a mixture with caprolactam without a vacuum comprises a sump, heater, packing, cooler and conical cover | |
| DE3327233A1 (en) | Process and plant for deodorising and/or deacidifying high-boiling organic compounds, in particular edible oils | |
| DE10223971A1 (en) | Continuous isolation of alpha,beta-unsaturated aldehyde, especially citral, used as fragrance or intermediate by rectifying crude mixture in feed and discharge columns coupled to prevent cross-mixing of vapor and condensate | |
| DE2852539A1 (en) | Distn. and evapn. plants for chemical and food industries - particularly for oil-solvent mixt. distn. | |
| US2084768A (en) | Fractionating tower | |
| DE3236985A1 (en) | PROCESS FOR DEGASSING, DRAINING AND FORWARD SEPARATION IN STRAIGHT DISTILLATION OF FATTY RAW ACIDS | |
| DE131397C (en) | ||
| EP0453920B1 (en) | Method for the purification of alpha-bisabolol | |
| DE3129883C2 (en) | ||
| DE3704407C2 (en) | ||
| DE102010001937A1 (en) | Method for removing contaminants and deposits from bottoms of distillation column of building, involves spraying cleaning fluid under high pressure on installations of distillation column by nozzles during operation of distillation column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE FR GB IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19860905 |
|
| 17Q | First examination report despatched |
Effective date: 19870507 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE FR GB IT NL SE |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19900803 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19900806 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19900815 Year of fee payment: 6 |
|
| ITTA | It: last paid annual fee | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19900831 Year of fee payment: 6 Ref country code: BE Payment date: 19900831 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19910816 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19910817 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19910831 |
|
| BERE | Be: lapsed |
Owner name: SCHMIDDING-WERKE WILHELM SCHMIDDING G.M.B.H. & CO Effective date: 19910831 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19920301 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19920430 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| EUG | Se: european patent has lapsed |
Ref document number: 85110248.3 Effective date: 19920306 |