CN106854492A - A kind of high acid value, the method for thermally labile grease physical deacidification deodorization and its device - Google Patents
A kind of high acid value, the method for thermally labile grease physical deacidification deodorization and its device Download PDFInfo
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- CN106854492A CN106854492A CN201710067307.7A CN201710067307A CN106854492A CN 106854492 A CN106854492 A CN 106854492A CN 201710067307 A CN201710067307 A CN 201710067307A CN 106854492 A CN106854492 A CN 106854492A
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- 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
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
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Abstract
The present invention discloses a kind of high acid value, the method for thermally labile grease physical deacidification deodorization and its device, and the depickling of grease is separated with deodorising process, and depickling uses relatively low temperature and longer time using temperature higher and shorter time, deodorization；The alternately deacid-deodoring process by the way of interior circulation, untill the acid number of grease reaches standard.The feed pipe of its device extracting tower is provided with the heater being connected with the outlet of heat exchanger cold oil, and the discharge pipe of extracting tower is connected by circulating valve with exchanger heat oil-in；The feed pipe of deodorizing tank is provided with the radiator being connected with exchanger heat oil export, and the discharge pipe of deodorizing tank is connected with heat exchanger cold oil entrance.The present invention can be controlled in≤below 0.3g/100g the isomerization content of fatty acid of thermally labile grease.The method and device refining effect are good, energy consumption and low production cost, moreover it is possible to small lot batch manufacture, are particularly suitable for high acid value, the physical refining of the small kind grease of thermally labile.
Description
Technical field
The present invention relates to edible oil and fat processing technique field, more particularly to a kind of high acid value, thermally labile grease physics essence
The method and its device of refining.
Background technology
Unsaturated fatty acid content in edible oil, especially essential fatty acid linoleic acid（The carbon of 9,12- all-cis formulas 18
Dienoic acid）And leukotrienes（9,12,15- all-cis formula octatecatrienoic acids）, it is the important indicator for weighing edible oil nutritive value.It is sub-
Oleic acid is ω -6 series polyunsaturated fatty acids, has the function of promoting cell development in human body；Leukotrienes is ω -3
Serial polyunsaturated fatty acid, with reducing blood lipid, it is hypo-allergenic, antitumor, promote brain development and protection cardiovascular and cerebrovascular the effects such as.
Be typically passed through high temperature process in refining raw food oil production process, with remove the free fatty in grease and
Bad smell.But under conditions of high temperature, starvation, eat the carbon-carbon double bond meeting of unrighted acid in oil triglycerides
From energy cis-structure higher（cis-）Become the lower more stable transconfiguration of energy（trans-）.The process is referred to as insatiable hunger
With the isomerization of aliphatic acid.Research shows that the species of the degree aliphatic acid of fatty acid isomerization, temperature and time are related.Fat
The easier isomerization more high of sour degree of unsaturation.Leukotrienes contains three unsaturated bonds, and linoleic acid contains two unsaturated bonds, oil
Acid contains a unsaturated bond.Therefore from for the easy degree of isomerization, leukotrienes>Linoleic acid>Oleic acid.General leukotrienes contains
Amount is more than 10% or grease of the linoleic acid content more than 50% is easy to isomerization at high temperature, and this quasi-grease is referred to as heat not
Stable grease.
Current scientific circles there is no the harmful evidence of isomerization aliphatic acid, including the countries in the world including China（It is red
Except wheat）There is no the laws and regulations of isomerization content of fatty acid in the common vegetable and animals oils of limitation.But there is scientific evidence to show, isomery
The linoleic acid and leukotrienes of the essential fatty acid of change, such as isomerization, the no longer physiologically active with script, are only capable of
For human body provides energy.Therefore, the isomerization fat content produced in course of oil processing is reduced, scientific circles is had become with oil
Fat processes the common recognition on boundary.
According to free fatty in removing crude oil（Abbreviation depickling）Method it is different, can be being divided into of fats and Oils Refining Technology
Learn refining and physical refining.Chemical refining produces soap by the free fatty in high alkali liquid and in crude oil（Soap）, so
Precipitation and washing, remove soap afterwards.Physical refining is then that in the environment of high temperature and high vacuum, the free fatty allowed in crude oil becomes
Into gas evaporation out, then taken away by water vapour.
In general, chemical refining condition is relatively mild, is suitable to thermally labile grease；Physical refining needs to bear higher
Temperature（240~260 DEG C）, it is suitable to thermally-stabilised grease.But the soap that chemical refining is produced can adsorb substantial amounts of neutral grease, refine
Loss（Referred to as refining consumes）It is higher, it is adapted to acid number（Weigh the index of free fatty acid content in crude oil）Relatively low grease；Physics
Refining then simply evaporation free fatty, is entrained with the neutral grease come seldom, so efficiency high, refining consumption is low, be adapted to acid number compared with
Grease high.
For the physical refining of grease, extensive continuous physical refining is divided into again and refines two kinds of techniques with small-scale batch (-type)
Technology.
The former, under high vacuum state（100~250Pa）, after crude oil with high acid value heating（240~260 DEG C）Continue to flow through
Physical deacidification tower, thin film fluid is formed on the filler surface of extracting tower.Free fatty volatilizees under conditions of high temperature high vacuum
Out, acid number reduction.Because the time that crude oil flows through extracting tower is very short（Generally 5-10 minutes）, after depickling, grease also band
There is bad smell, need further deodorization.Method is that the grease allowed after depickling enters deodorization and is detained tank（It is commonly mounted directly to depickling
Tower bottom）, at high temperature（It is identical with depickling temperature）Stop 1~2 hour, complete deodorising process.The technique is adapted to acid number less
The high, oil and fat refining that batch is larger.
The latter, because scale is smaller, it is impossible to form continuous processing, can only interval refining deacidification, that is, batch
Crude oil depickling together.Interval refining is generally carried out in interval deacidification tank.Its method is as follows：Load one in the deacidification tank of sealing
The crude oil with high acid value of batch, by heating coil by heating crude oil to depickling temperature（240~260 DEG C）, meanwhile, deacidification tank is entered
Row vacuumize process, 100~250Pa is dropped to by the absolute pressure in deacidification tank.Close to before depickling temperature, depickling pot bottom
One group of steam jet start spray vapor.Vapor is fragmented into minute bubbles one by one inside high-temperature grease, in crude oil
The free fatty in portion begins to boil off in the environment of high temperature high vacuum, into vapor bubble, then as water vapour gas
Bubble rises, and is extracted deacidification tank, is finally condensed in aliphatic acid capture tank.
Either continuous physical refining, or interval physical refining, grease is required at high operating temperatures（240~260
℃）, experience longer time（1~2 hour, or 3~5 hours）, therefore it is easy to isomery for thermally labile grease
Change reaction, the content of fatty acid of isomerization is sometimes more than 5g/100g.
The small kind edible oil high for high acid value, the edible oil of thermally labile, particularly linoleic acid plus linolenic acid content,
Such as seeds of rubber tree oil, oil and fat of sacha inchi, safflower seed oil, linseed oil, perilla herb oil, refining deacidification face an awkward choosing
Select：Because its acid number is very high, it is lost with chemical refining very big；Due to its thermally labile, can then be produced using physical refining a large amount of
Isomerization aliphatic acid.And because the grease of high acid value, thermally labile substantially belongs to small kind grease, scale and batch compared with
It is small, it is difficult with the process of continuous refining.
The content of the invention
To solve the above problems, the present invention provide a kind of high acid value, the method for thermally labile grease physical deacidification deodorization and
Its device, is directed to small lot, high acid value, thermally labile grease, can be during physical refining deacidification, by thermally labile oil
The isomerization content of fatty acid control of fat exists《The national food safety standard prepackaged food nutritional labeling general rules of GB 28050》
" 0 " boundary value of regulation（≤0.3g/100g）Below.
The present invention is realized by following technical proposal：A kind of high acid value, the method for thermally labile grease physical deacidification deodorization,
By following each step：
（1）To treat the small lot of deacid-deodoring, high acid value, thermally labile grease 240~260 DEG C of temperature, absolute pressure 100~
Under 250Pa, being passed through vapor carries out depickling treatment 6 minutes；
（2）By step（1）It is grease obtained to be cooled to 180~200 DEG C by heat exchange method, and in 100~250Pa of absolute pressure
Under, being passed through vapor carries out deodorization treatment 30 minutes；
（3）By step（2）It is grease obtained to be warming up to 240~260 DEG C by heat exchange method, by step（1）Depickling treatment is carried out,
Step is pressed again（2）Carry out deodorization treatment, such repeat step（1）With（2）Operation untill the acid number of grease reaches standard.
The above method is that the physical deacidification of small lot, high acid value, thermally labile grease is separated with deodorising process, in vacuum
Under the conditions of, depickling uses relatively low temperature and longer time using temperature higher and shorter time, deodorization；For small quantities of
The characteristics of amount, by batch in units of, alternately " depickling-deodorization " process by the way of interior circulation；Every time during the depickling of circulation
Between be 6 minutes（I.e. grease from extracting tower tower top trickle to bottom of towe time be 6 minutes）, 240~260 DEG C of depickling temperature；Every time
The deodorization time of circulation is 30 minutes（Average flowing-through extracting tower is once in 30 minutes for grease i.e. in deodorizing tank）, deodorization temperature
It is 180~200 DEG C；Depickling is 100~250Pa of absolute pressure with the vacuum of deodorization；The height of based on crude initial acid value, enters
1~3 " depickling-deodorization " inner cyclic process of row, untill the acid number of grease reaches standard.The above method can use heat exchange
Mode, the heat-shift between depickling oil and deodorised oil maintains the temperature difference of depickling and deodorization, reducing energy consumption.
A kind of device another object of the present invention is to provide high acid value, thermally labile grease physical deacidification deodorization, bag
Extracting tower, deodorizing tank, heater, radiator and heat exchanger are included, the feed pipe of the extracting tower is provided with and heat exchanger cold oil
The heater of connection is exported, the discharge pipe of extracting tower is connected by circulating valve with exchanger heat oil-in；The deodorizing tank
Feed pipe is provided with the radiator being connected with exchanger heat oil export, and discharge pipe and the heat exchanger cold oil entrance of deodorizing tank connect
Connect.
The extracting tower is provided with vapor import, and is controlled by vapor valve I.
The deodorizing tank is provided with vapor import, and is controlled by vapor valve II.
The extracting tower top is provided with the bleeding point I being connected with pumped vacuum systems.
The deodorizing tank top is provided with the bleeding point II being connected with pumped vacuum systems.
The discharging opening controlled by outlet valve is additionally provided with the discharge pipe of the extracting tower.
The charging aperture controlled by inlet valve is additionally provided with the feed pipe of the deodorizing tank.
The discharge pipe of the extracting tower is provided with canned motor pump I.
The feed pipe of the extracting tower is provided with canned motor pump II.
The device work when, open canned motor pump I and canned motor pump II, pressure opening circulating valve, close outlet valve, open inlet valve and
Vacuum system, will treat that the grease of deacid-deodoring is entered by charging aperture, and extracting tower is entered through heat exchanger, heater, enter back into de-
Smelly tank, then under vacuum, grease forms circulate in a device.Inlet valve is closed, heater, radiator is protected
Closing is held, grease is gradually heated up, when the oil temperature in deodorizing tank rises to 200 DEG C, radiator is opened, by the oil temperature in deodorizing tank
At 180~200 DEG C, heater continues to heat for control, makes the Oil-temperature control entered in extracting tower at 240~260 DEG C, to extracting tower
With vapor is passed through in deodorizing tank.So far, the device enter stabilization " depickling-deodorization " closed loop states, grease in extracting tower,
Under the conditions of the penetrating of high vacuum and direct water vapour, free fatty evaporation, as water vapour is taken away by vacuum system together,
By the conveying that the grease after a depickling passes through canned motor pump I, lowered the temperature into exchanger heat oil-piping, then again by dissipating
Hot device is further lowered the temperature, and is down to 180~200 DEG C of deodorization temperature, into deodorizing tank, grease in deodorizing tank in high vacuum and
Under conditions of direct water vapour is sprayed into, malodor molecules volatilization is taken away with water vapour by vacuum system.So through circulating for several times
Afterwards, untill the acid number until the batch grease entirely reaches standard, circulating valve is closed, opens outlet valve, into open loop situations, will
The grease that deacid-deodoring is finished is released by discharging opening.
The depickling that the present invention breaks traditions is carried out at the same temperature with deodorization, and physical deacidification is separated with deodorization：Depickling
Using temperature higher（240~260 DEG C）With the shorter time；Deodorization uses relatively low temperature（180~200 DEG C）With it is more long
Time.For small lot, the crude oil of high acid value, a physics " depickling-deodorization " is difficult to reach requirement, therefore the present invention and is to criticize
Unit, using " depickling-deodorization "-" depickling-deodorization "-... alternately depickling and deodorization 1~3 time by the way of inner loop,
Untill acid number reaches requirement.When " depickling-deodorization " interior circulation is carried out, using oily oil heat exchanger, by higher de- of temperature
The heat of sour oil gives the relatively low deodorised oil of temperature, energy-saving.
The beneficial effects of the present invention are：The present invention is suitable for the small lot refining of high acid value, thermally labile grease.Its is excellent
Gesture is：
1. using the high temperature depickling of short time, preferable deacidification effect is obtained while fatty acid isomerization is controlled.
2. low temperature long-time deodorization is used, preferable deodorising effect is obtained while fatty acid isomerization is controlled.
3. to carrying out the circulation of " depickling-deodorization " with a collection of grease, the oil and fat refining of small kind is adapted to, it can be ensured that by height
The acid number of acid number crude oil is dropped within critical field, while controlling the cost of refining equipment.
4. " depickling-deodorization " circulation is carried out by the way of oily heat exchange to the grease in batch, it is energy-saving.
The present invention, can be by the isomerization content of fatty acid control of thermally labile grease during physical refining deacidification is carried out
System exists《The national food safety standard prepackaged food nutritional labeling general rules of GB 28050》" 0 " boundary value of regulation（≤0.3g/
100g）Below.The method and device refining effect are good, energy consumption and low production cost, moreover it is possible to small lot batch manufacture, are particularly suitable for peracid
Value, the physical refining of the small kind grease of thermally labile.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Specific embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 25mgKOH/100g）、
Thermally labile（Linolenic acid content 20%）Seeds of rubber tree oil.Deacid-deodoring is carried out using following method：
（1）By the above-mentioned small lot for treating deacid-deodoring, high acid value, thermally labile grease 260 DEG C of temperature, absolute pressure 100~
Under 250Pa, being passed through vapor carries out depickling treatment 6 minutes；
（2）By step（1）It is grease obtained to be cooled to 200 DEG C by heat exchange method, and under 100~250Pa of absolute pressure, lead to
Entering vapor carries out deodorization treatment 30 minutes；
（3）By step（2）It is grease obtained to be warming up to 260 DEG C by heat exchange method, by step（1）Depickling treatment is carried out, then is pressed
Step（2）Carry out deodorization treatment, such repeat step（1）With（2）Operation untill the acid number of grease reaches standard.
To realize such scheme, using following device：As illustrated, high acid value, thermally labile grease physical deacidification deodorization
Device include extracting tower 3, deodorizing tank 10, heater 1, radiator 12 and heat exchanger 2, on the feed pipe of the extracting tower 3
The heater 1 being connected with the outlet of the cold oil of heat exchanger 2 is provided with, the discharge pipe of extracting tower 3 is by circulating valve 6 and the deep fat of heat exchanger 2
Entrance is connected；The feed pipe of the deodorizing tank 10 is provided with the radiator 12 being connected with the hot oil outlet of heat exchanger 2, deodorizing tank 10
Discharge pipe be connected with the cold oil entrance of heat exchanger 2.
The extracting tower 3 is provided with vapor import, and is controlled by vapor valve I 8, and deodorizing tank 10 is provided with vapor and enters
Mouthful, and controlled by vapor valve II 11；The top of extracting tower 3 is provided with the bleeding point I 16 being connected with pumped vacuum systems, and deodorizing tank 10 is pushed up
Portion is provided with the bleeding point II 9 being connected with pumped vacuum systems；It is additionally provided with the discharge pipe of extracting tower 3 by going out that outlet valve 5 is controlled
Material mouth 4, is additionally provided with the charging aperture 15 controlled by inlet valve 14 on the feed pipe of deodorizing tank 10；On the discharge pipe of extracting tower 3
Canned motor pump I 7 is provided with, the feed pipe of extracting tower 10 is provided with canned motor pump II 13.
The device work when, open canned motor pump I 7 and canned motor pump II 13, pressure opening circulating valve 6, close outlet valve 5, open into
Material valve 14 and vacuum system, will treat that the grease of deacid-deodoring is entered by charging aperture 15, and depickling is entered through heat exchanger 2, heater 1
Tower 3, enters back into deodorizing tank 10, due to being that under vacuum, grease forms circulate in a device, until this batch raw material
Charging is finished.Inlet valve 14 is closed, heater 1, radiator 12 is remained turned-off, and grease is gradually heated up, when deodorizing tank 10
When interior oil temperature rises to 200 DEG C, radiator 12 is opened, by the Oil-temperature control in deodorizing tank 10 at 200 DEG C, heater 1 continues to add
Heat, makes to enter in extracting tower 3 Oil-temperature control at 260 DEG C, to being passed through vapor in extracting tower 3 and deodorizing tank 10.So far, the dress
Put into stabilization " depickling-deodorization " closed loop states, grease in extracting tower 3, in high vacuum and the penetrating bar of direct water vapour
Under part, free fatty evaporation, as water vapour is taken away by vacuum system together, by the grease after a depickling by shielding
The conveying of pump I 7, is lowered the temperature into the hot oil pipeline of heat exchanger 2, is then further lowered the temperature by radiator 12 again, is down to 200 DEG C
Deodorization temperature, into deodorizing tank 10, the grease in deodorizing tank 10 is smelly under conditions of high vacuum and direct water vapour are sprayed into
Taste molecule volatilizees, and is taken away by vacuum system with water vapour.So after circulating for several times, until the acid number of the batch grease is complete
Untill portion reaches standard, circulating valve 6 is closed, open outlet valve 5, into open loop situations, the grease that deacid-deodoring is finished passed through
Discharging opening 4 is released.
The device is circulated every time, residence time of the grease in extracting tower（Grease trickles to the bottom of towe time from tower top）It is 6
Minute, residence time of the grease in deodorizing tank is 30 minutes（The transporting velocity of canned motor pump is 4000kg/h）, i.e., it is every 30 minutes
Grease averaging loop in device 1 time, by extracting tower 1 time.
In this operation, grease averaging loop 2 times in a device, heated time 12 minutes in 260 DEG C of extracting tower,
Mean residence time 60 minutes in 200 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.5mgKOH/100g, meets the acid number requirement of primary oil in company standard（≤1mgKOH/100g）；The aliphatic acid of isomerization contains
It is 0.17g/100g to measure, and is met《The national food safety standard prepackaged food nutritional labeling general rules of GB 28050》Regulation
" 0 " boundary value（≤0.3g/100g）Below.The grease free from extraneous odour, every organoleptic indicator is good.
Embodiment 2
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 45mgKOH/100g）、
Thermally labile（Linolenic acid content 20%）Seeds of rubber tree oil.
With the operation of embodiment 1, only by extracting tower temperature control at 240 DEG C, deodorizing tank temperature control is at 180 DEG C.
In this operation, grease averaging loop 2 times in a device, heated time 12 minutes in 240 DEG C of extracting tower,
Mean residence time 60 minutes in 180 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.7mgKOH/100g, meets the acid number requirement of primary oil in company standard（≤1mgKOH/100g）；The aliphatic acid of isomerization contains
It is 0.22g/100g to measure, and is met《The national food safety standard prepackaged food nutritional labeling general rules of GB 28050》Regulation
" 0 " boundary value（≤0.3g/100g）Below.The grease free from extraneous odour, every organoleptic indicator is good.
Embodiment 3
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 18mgKOH/100g）、
Thermally labile（Linolenic acid content 42%）Oil and fat of sacha inchi.
With the operation of embodiment 1, only by extracting tower temperature control at 240 DEG C, deodorizing tank temperature control is at 180 DEG C.
In this operation, grease averaging loop 2 times in a device, heated time 12 minutes in 240 DEG C of extracting tower,
Mean residence time 60 minutes in 180 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.8mgKOH/100g, meets the acid number requirement in company standard（≤3mgKOH/100g）；The content of fatty acid of isomerization is
0.25g/100g, meets《The national food safety standard prepackaged food nutritional labeling general rules of GB 28050》" 0 " boundary of regulation
Limit value（≤0.3g/100g）Below.The grease free from extraneous odour, every organoleptic indicator is good.
Embodiment 4
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 40mgKOH/100g）、
Thermally labile（Linoleic acid content 75%）Safflower seed oil.
With the operation of embodiment 1, only by extracting tower temperature control at 250 DEG C, deodorizing tank temperature control is at 190 DEG C.
In this operation, grease averaging loop 3 times in a device, heated time 18 minutes in 250 DEG C of extracting tower,
Mean residence time 90 minutes in 190 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.4mgKOH/100g, meets《GB/T 22465-2008 safflower seed oils》The acid number requirement of primary oil in national standard（≤
0.5mgKOH/100g）；The content of fatty acid of isomerization is 0.11g/100g, is met《The national food safety standard of GB 28050
Prepackaged food nutritional labeling general rule》" 0 " boundary value of regulation（≤0.3g/100g）Below.The grease free from extraneous odour, every sense organ
Index is good.
Embodiment 5
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 15mgKOH/100g）、
Thermally labile（Linolenic acid content 51%）Linseed oil.
With the operation of embodiment 1, only by extracting tower temperature control at 240 DEG C, deodorizing tank temperature control is at 190 DEG C.
In this operation, grease averaging loop 1 time in a device, heated time 6 minutes in 240 DEG C of extracting tower,
Mean residence time 30 minutes in 190 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.6mgKOH/100g, meets《GB/T 8235-2008 linseed oil》The acid number requirement of primary oil in national standard（≤
1mgKOH/100g）；The content of fatty acid of isomerization is 0.24g/100g, is met《The national food safety standard of GB 28050 is pre-
Packaged food nutritional labeling general rule》" 0 " boundary value of regulation（≤0.3g/100g）Below.The grease free from extraneous odour, every sense organ refers to
Mark is good.
Embodiment 6
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 12mgKOH/100g）、
Thermally labile（DHA content 20%, EPA content 5%）Tunny fish oil.
With the operation of embodiment 1, only by extracting tower temperature control at 240 DEG C, deodorizing tank temperature control is at 200 DEG C.
In this operation, grease averaging loop 1 time in a device, heated time 6 minutes in 240 DEG C of extracting tower,
Mean residence time 30 minutes in 200 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.6mgKOH/100g, meets《SCT 3502-2000 Fish oils》The acid number requirement of primary oil in professional standard（≤1mgKOH/
100g）；The content of fatty acid of isomerization is 0.28g/100g, is met《The pre-packaged food of the national food safety standard of GB 28050
Product nutritional labeling general rule》" 0 " boundary value of regulation（≤0.3g/100g）Below.The grease is every without fishlike smell and other peculiar smell
Organoleptic indicator is good.
Embodiment 7
Treat deacid-deodoring grease for a collection of 2 tons by pretreatment（Degumming and decolouring）High acid value（Acid number 27mgKOH/100g）、
Thermally labile（Linolenic acid content 10%, linoleic acid content 61%）Tunny fish oil.
With the operation of embodiment 1, only by extracting tower temperature control at 240 DEG C, deodorizing tank temperature control is at 180 DEG C.
In this operation, grease averaging loop 2 times in a device, heated time 12 minutes in 240 DEG C of extracting tower,
Mean residence time 60 minutes in 180 DEG C of deodorizing tank（Containing initial temperature-rise period）.Grease after deacid-deodoring is through actual measurement：Acid number
0.4mgKOH/100g, meets《GB/T 22327-2008 walnut oils》The acid number requirement of primary oil in national standard（≤
0.6mgKOH/100g）；The content of fatty acid of isomerization is 0.14g/100g, is met《The national food safety standard of GB 28050
Prepackaged food nutritional labeling general rule》" 0 " boundary value of regulation（≤0.3g/100g）Below.The grease free from extraneous odour, every sense organ
Index is good.
Claims (10)
1. a kind of high acid value, the method for thermally labile grease physical deacidification deodorization, it is characterised in that by following each step：
（1）To treat the small lot of deacid-deodoring, high acid value, thermally labile grease 240~260 DEG C of temperature, absolute pressure 100~
Under 250Pa, being passed through vapor carries out depickling treatment 6 minutes；
（2）By step（1）It is grease obtained to be cooled to 180~200 DEG C by heat exchange method, and in 100~250Pa of absolute pressure
Under, being passed through vapor carries out deodorization treatment 30 minutes；
（3）By step（2）It is grease obtained to be warming up to 240~260 DEG C by heat exchange method, by step（1）Depickling treatment is carried out,
Step is pressed again（2）Carry out deodorization treatment, such repeat step（1）With（2）Operation untill the acid number of grease reaches standard.
2. a kind of high acid value, the device of thermally labile grease physical deacidification deodorization, it is characterised in that：Including extracting tower, deodorizing tank,
Heater, radiator and heat exchanger, the feed pipe of the extracting tower are provided with the heater being connected with the outlet of heat exchanger cold oil,
The discharge pipe of extracting tower is connected by circulating valve with exchanger heat oil-in；The feed pipe of the deodorizing tank is provided with and changes
The radiator of hot device hot oil outlet connection, the discharge pipe of deodorizing tank is connected with heat exchanger cold oil entrance.
3. device according to claim 2, it is characterised in that：The extracting tower is provided with vapor import, and is steamed by water
Air valve I is controlled.
4. device according to claim 2, it is characterised in that：The deodorizing tank is provided with vapor import, and is steamed by water
Air valve II is controlled.
5. device according to claim 2, it is characterised in that：The extracting tower top is provided with what is be connected with pumped vacuum systems
Bleeding point I.
6. device according to claim 2, it is characterised in that：The deodorizing tank top is provided with what is be connected with pumped vacuum systems
Bleeding point II.
7. device according to claim 2, it is characterised in that：It is additionally provided with by outlet valve on the discharge pipe of the extracting tower
The discharging opening of control.
8. device according to claim 2, it is characterised in that：It is additionally provided with by inlet valve on the feed pipe of the deodorizing tank
The charging aperture of control.
9. device according to claim 2, it is characterised in that：The discharge pipe of the extracting tower is provided with canned motor pump I.
10. device according to claim 2, it is characterised in that：The feed pipe of the extracting tower is provided with canned motor pump II.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067307.7A CN106854492A (en) | 2017-02-07 | 2017-02-07 | A kind of high acid value, the method for thermally labile grease physical deacidification deodorization and its device |
| PCT/CN2017/074506 WO2018145332A1 (en) | 2017-02-07 | 2017-02-23 | Method and device for physical deacidification and deodorization of high acid-value, thermally unstable oil |
| MYPI2018701646A MY188998A (en) | 2017-02-07 | 2017-02-23 | Method and apparatus for physical deacidification and deodorization of high acid-value thermolabile oils and fats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067307.7A CN106854492A (en) | 2017-02-07 | 2017-02-07 | A kind of high acid value, the method for thermally labile grease physical deacidification deodorization and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106854492A true CN106854492A (en) | 2017-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710067307.7A Pending CN106854492A (en) | 2017-02-07 | 2017-02-07 | A kind of high acid value, the method for thermally labile grease physical deacidification deodorization and its device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106854492A (en) |
| MY (1) | MY188998A (en) |
| WO (1) | WO2018145332A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164085A (en) * | 2017-06-23 | 2017-09-15 | 江西源森油茶科技股份有限公司 | A kind of camellia oil process equipment |
| CN109452378A (en) * | 2018-12-29 | 2019-03-12 | 武汉轻工大学 | It is a kind of to handle the method for being rich in the grease of alpha-linolenic acid and grease and its application |
| CN110982619A (en) * | 2019-11-15 | 2020-04-10 | 克拉玛依红果实生物制品有限公司 | Process capable of effectively improving content of linolenic acid in refined vegetable oil |
| CN114369498A (en) * | 2021-12-14 | 2022-04-19 | 郑州远洋油脂工程技术有限公司 | Refining process of edible oil with double-temperature deodorization and zero trans-fatty acid in national standard |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666540A (en) * | 2018-11-26 | 2019-04-23 | 郑州远洋油脂工程技术有限公司 | A kind of high acid value lipin deacidifying deodorizing technology and corollary apparatus |
| CN111286404A (en) * | 2020-03-30 | 2020-06-16 | 山东兴泉油脂有限公司 | Plant oil deodorizing, deacidifying and refining device and process |
| CN217265588U (en) * | 2021-04-19 | 2022-08-23 | 苏州雪绒无疆食品科技有限公司 | Rubber seed oil decoloration device |
| CN115746951B (en) * | 2022-12-30 | 2024-04-02 | 广东锦坤实业有限公司 | Oleic acid separation method and system |
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- 2017-02-07 CN CN201710067307.7A patent/CN106854492A/en active Pending
- 2017-02-23 MY MYPI2018701646A patent/MY188998A/en unknown
- 2017-02-23 WO PCT/CN2017/074506 patent/WO2018145332A1/en active Application Filing
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| CN103859244A (en) * | 2012-12-14 | 2014-06-18 | 日清奥利友集团株式会社 | Oil-containing food and manufacturing method thereof, colza oil, and method for inhibiting heating sterilization smell |
| CN103509649A (en) * | 2013-10-21 | 2014-01-15 | 江苏丹绿食品股份有限公司 | Deacidification and deodorization technology for rice oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107164085A (en) * | 2017-06-23 | 2017-09-15 | 江西源森油茶科技股份有限公司 | A kind of camellia oil process equipment |
| CN109452378A (en) * | 2018-12-29 | 2019-03-12 | 武汉轻工大学 | It is a kind of to handle the method for being rich in the grease of alpha-linolenic acid and grease and its application |
| CN109452378B (en) * | 2018-12-29 | 2022-12-13 | 武汉轻工大学 | Method for treating grease rich in alpha-linolenic acid, grease and application thereof |
| CN110982619A (en) * | 2019-11-15 | 2020-04-10 | 克拉玛依红果实生物制品有限公司 | Process capable of effectively improving content of linolenic acid in refined vegetable oil |
| CN114369498A (en) * | 2021-12-14 | 2022-04-19 | 郑州远洋油脂工程技术有限公司 | Refining process of edible oil with double-temperature deodorization and zero trans-fatty acid in national standard |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018145332A1 (en) | 2018-08-16 |
| MY188998A (en) | 2022-01-17 |
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