CN101796983A - Novel preparation technology of vegetable health care oil - Google Patents
Novel preparation technology of vegetable health care oil Download PDFInfo
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- CN101796983A CN101796983A CN200910014301A CN200910014301A CN101796983A CN 101796983 A CN101796983 A CN 101796983A CN 200910014301 A CN200910014301 A CN 200910014301A CN 200910014301 A CN200910014301 A CN 200910014301A CN 101796983 A CN101796983 A CN 101796983A
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Abstract
The invention relates to a novel preparation technology of vegetable health care oil, which belongs to the technical field of oleochemical industry. The invention is characterized in that a semi-continuous dry method separate extraction technology is adopted to process cotton seed oil. The preparation technology comprises the steps of 1, wool peeling, 2, pretreating, 3, oil immersing 4, cottonseed meal processing, 5, refining and 6, separate extracting. The novel preparation technology does not produce waste water, is operated simply and safely, has high automation degree, and has complete flexibility for processing any raw materials; automatic control ensures stability, the product quality is better without pollution of any solvent abstergent, a centrifugal separator is not needed, and the cost is reduced because solvent is not needed. The solid fat part obtained by separate extraction is derived from natural vegetable materials with low content of trans fatty acid. The solid fatty acid produced by the technology can be different from margarine and shortening obtained by conventional hydrogenation, eliminates the potential risk of the trans fatty acid, and the margarine is natural, green and healthy.
Description
Technical field
The invention belongs to the oil chemical technology field.
Background technology
Current, domestic margarine almost is the hydrogenation cream that second generation hydrogenation process route is produced entirely.There are three big defectives in hydrogenation cream: the one, and linoleic acid is totally destroyed for the contained valuable composition----that reduces body's cholesterol in the vegetable oil.The 2nd, meanwhile, make a part of oleic acid isomerization in the hydrogenation process, generated the unexistent antiform oleic acid composition of nature, content is up to 36-60%, HDL (HDL) to the human body beneficial is reduced, harmful low-density lipoprotein (LDL) increases, and directly causes atherosclerotic, and side effect and hazard ratio cholesterol are bigger.The 3rd, invest huge, the expense costliness.Vegetable oil hydrogenation is to produce hydrogen with brine electrolysis, does catalyst hydrogenation with nickel powder and forms, and one-time investment huge (only produce the hydrogen device investment and need ten thousand yuan of 3000-4000), power consumption is big especially, the operating cost height.
Similar enterprise with other compares, and this project construction process choice has absorbed the advanced technology that external current cotton seed oil is put forward, and adopts semicontinuous dry method fractionation technology processing cottonseed oil at home first.Fractionation technology is exactly the process of a grease crystallization in fact.The crystallization of grease can be divided into three phases: (i) the sweet three esters cooling of liquid or fusing produces nucleus; (ii) crystal growth is to shape and the big or small degree that can effectively separate; (iii) solid phase and liquid phase separation, segregation and purification respectively.Relate generally to for the grease degreasing method: conventional degreasing method, be commonly called as the dry method branch and carry, also having a class is to use the degreasing method of assistant to be called assistant degreasing method in the crystallization process, mainly comprises solvent degreasing method, surfactant degreasing method etc.By comparing and contrast, we mainly adopt the dry method branch to carry, and the dry method branch is carried and being had the following advantages: emit no waste water; Simple to operate, safety, all processes are all controlled by computer; Full flexibility can be processed any raw material; Stability is guaranteed in automation control; Product quality is better, without any the pollution of solvent cleaner; Need not use centrifugal separator; Owing to not needing to reduce production costs with any solvent.Thereby it is modern production method that the dry method branch is carried.Divide and to carry the hard fat that the obtains natural plant raw material of partly originating, content of trans fatty acids is few.The hard fat of this project construction can be different from margarine, the shortening that conventional hydrogenation obtains, and has eliminated the secret worry of trans-fatty acid, is natural, green, healthy margarine.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of novel preparation technology of vegetable health care oil, the contained beneficiating ingredient of vegetable oil reduces in the prior art hydrogenation cream to solve, and harmful components increase, and are unfavorable for health; The production cost height, investment is big, problems such as energy consumption height.
The technical solution adopted for the present invention to solve the technical problems is to adopt semicontinuous dry method fractionation technology processing cottonseed oil, and its preparation technology comprises
1, stripping suede
After the gross cottonseed process cleaning impurity elimination, advance one, two, three road delinters successively and shell suede, the light cottonseed goes to the preliminary treatment workshop, and one, two, three road short flannels are through classification packing behind the pickers.Preliminary treatment: the light cottonseed is through removing stone, after the screening impurity elimination, removes the decorticator laggard auger sieve of peeling off, peel off, and isolated shell is transported to outside the workshop puts in storage.Isolated cotton benevolence air intake screening contains the shell amount to reduce in the benevolence.Cotton benevolence is sent into softening kettle, goes into flaker and roll the material embryo after softening, and enters plate dryer through conveying equipment, and the stock after the oven dry is sent into through conveying equipment and leached the workshop.
2, preliminary treatment
The light cottonseed is after going stone, screening impurity elimination, and by peeling off and benevolence shell separator, isolated shell is transported to outside the workshop puts in storage.Isolated cotton benevolence contains the shell amount through special-purpose picking equipment in the reduction benevolence.Send into the leaching workshop by the stock after a series of modifier treatment through conveying equipment.
3, immersion oil
The stock that is come by preliminary treatment enters the omnidistance infuser of Train ' s through conveying equipment and leaches, and makes that oil-containing drops to below 1% in the dregs of rice.Leach oil and enter the evaporation of stage evaporation device behind multistage filtering, miscella enters stripper, and the crude oil behind the stripping is with being pumped into the refining plant refining.Miscella is in evaporation process, and solvent vapo(u)r enters circulating tank and recycles through separately condenser after condensation divides water.
4, cotton dregs
The wet dregs of rice after the leaching are delivered to mechanical precipitation through conveying equipment, and the dregs of rice material behind the mechanical precipitation is dried through low temperature desolventizing, and the cotton dregs after the oven dry are delivered to warehouse for finished product through conveying equipment.Reuse after the above-mentioned recovery system regeneration of the solvent vapo(u)r that oven dry is deviate from.
5, refining
The batch (-type) oil refining process is adopted in the refining plant, leaches the workshop crude oil and squeezes into oil refining workshop deodorization pot by pump, remove residual solvent after, enter the continuous refining system and carry out alkali refining, washing, cooling back metering warehouse-in.
6, branch is carried
Raw material quality requirement (decolouring cottonseed oil)
Free fatty: 0.1% upper limit; Moisture and volatile matter: 0.1% upper limit; But impurity screening: 0.1% upper limit; Wax and solid fat: less than 25%.
Technological process as shown in Figure 1.
Adopting good effect of the present invention is to emit no waste water; Simple to operate, safety, all processes are all controlled by computer; Full flexibility can be processed any raw material; Stability is guaranteed in automation control; Product quality is better, without any the pollution of solvent cleaner; Need not use centrifugal separator; Owing to not needing to reduce production costs with any solvent. Thereby dry fractionation is modern production method. Divide the hard fat the raise natural plant raw material of partly originating, content of trans fatty acids is few. The hard fat of this project construction can be different from margarine, the shortening that conventional hydrogenation obtains, and has eliminated the secret worry of trans-fatty acid, is natural, green, healthy margarine.
The specific embodiment
One, technological process:
1, stripping suede workshop
Gross cottonseed is shelled suede (I, II, III) after cleaning, cotton linter carries out suede packing clearly, obtains the light cottonseed.
2, preliminary treatment workshop
The light cottonseed carries out modifier treatment after clearing up, peel off, separating, become qualified stock.
3, leach the workshop
Stock enters Train ' s infuser through buffer bin and leaches, and miscella leaches crude oil and goes to the refining plant through evaporation, stripping; The solvent condenses recycling use.
4, refining and branch are carried the workshop
Crude oil (leaching crude oil) is through deodorization, alkali refining, washing, and refined cottonseed oil is put in storage.
Cottonseed oil after the decolouring is slowly freezing in special refrigerating chamber or jar, and the while gentle agitation is with the maximum crystal growth of (5 ℃～7 ℃) during the storage of assurance oil cooling.After the low-temperature storage, the oily solid-state fat composition that accounts for cottonseed oil mass 20%～25% by the flame filter press or the box filter filtering and removing of canvas parcel.The correct cottonseed oil carried after the processing of dividing can be through the freezing experiment of 10h and the grease crystal do not occur at least under 0 ℃.The stearic component of high-melting-point is mixed with the cottonseed oil of proposing processing without branch usually as being used for shortening, pudding, substitute of cocoa fat, sugar-coat or other food after frying oil or the hydrogenation.Higher palmitic acid content helps to form in shortening and the sugar-coat suitable crystal in the tristearin.The fluid oil of separating is carried cottonseed oil through processing composition behind the deodorizing technology.
5, solvent naphtha reclaims
Solvent naphtha reclaims by special-purpose recovery system, recycles.
Two, production engineering specifications
1, pretreatment process
Pretreatment process is the slubbing link of manufacturing procedure, is normally carrying out of the quality of guaranteeing product and next procedure, adopts efficient seed cleaner in the technology, and simple and direct practicality just can be removed light assorted, heavily assorted in the raw material together.And good effect is arranged, and to peel off and adopt advanced special-purpose decorticator, this machine is peeled off effective, compares with traditional decorticator, has reduced the fines content of benevolence shell, more helps the benevolence shell and separates; Material adopts meticulous adjustable low temperature modifier treatment, changes generally the high temperature high-moisture that adopts and steams and fry, and has reduced the denaturation degrees of protein, has reduced the same combination of proteins of free gossypol simultaneously, is convenient to the extraction of postorder gossypol and reduces the content of gossypol in the albumen; In pretreatment process, be equipped with stone equipment and the dust ventilating net system of going in addition, for the health in workshop physical and mental health clean and tidy, the workman has been created better condition.
2, leach operation
Adopt one time extract technology; Solvent condenses reclaims carries out the secondary utilization, and technology maturation, reliable, the oil yield that improved cottonseed reduce loss of proteins simultaneously, have also reduced molten consumption, have reduced Residual oil in the dregs of rice, are convenient to the carrying out of postorder processing technology.
3, refining procedure
The refinery practice of traditional type has three kinds: batch (-type), continous way, semi continuous, for the refining of cottonseed oil, generally adopt batch process.This technology investment is few, and technological operation is all very simple, is easy to grasp, maintenance also easily relatively is suitable for small-sized oily factory, and the continous way refinery practice, investment is big first, second the semicontinuous program height of automatic control is difficult to grasp as early as possible, relatively is suitable for large-scale oil-fat plant.Consider project output and various interior external factor (peopleware, operation easier etc.), so this project adopts the batch (-type) oil refining process.The neutralization of grease, add alkali, stirring, deodorization, water washing and precipitating and finish by oil refining cauldron, deodorization pot, washing pot.
4, branch is carried
Cottonseed oil is pumped to cooling for the first time the water cooler in storage tank, enter oil-oil heat exchanger then and carry out the cooling second time, entering crystallizing tank, this twice cooling mainly is to make oil cooling fully before entering crystallizing tank, and oiling-oil heat exchanger is for heat is utilized fully.Advance the raw material of the accurate quantity of full scale at crystallizing tank after, just can begin crystallization processes, oil can be according to predefined freezing parameter cold oil, this freezing parameter is to realize by means of the circulation in the freezing medium that are controlled in the refrigerating coil, and the quality and the tristearin that requires branch to put forward and the quality of palmitin of crude oil depended in the design of this freezing parameter.
Raw material, the decolouring cottonseed oil is pumped to cooling for the first time the water cooler in storage tank, enter oil-oil heat exchanger then and carry out the cooling second time, entering crystallizing tank, this twice cooling mainly is to make oil cooling fully before entering crystallizing tank, and oiling-oil heat exchanger is for heat is utilized fully.Advance the raw material of the accurate quantity of full scale at crystallizing tank after, just can begin crystallization processes, oil can be according to predefined freezing parameter cold oil, this freezing parameter is to realize by means of the circulation in the freezing medium that are controlled in the refrigerating coil, and the quality and the tristearin that requires branch to put forward and the quality of palmitin of crude oil depended in the design of this freezing parameter.
In crystallization at first, the water of cooling tower is as freezing medium, when oily temperature is cooled to a certain stage, promptly during the too little cold oil effectively of cooling range, then need use chilled water.Crystallizing tank is equipped with the varying-speed machinery agitator, so just can guarantee the uniformity of oil, and finishes crystallization process with the stirring of minimum.
When oil occurs in the liquid palmitin as during the stearic crystallization of thick semi-solid (pulpous state), can prepare to filter.If the result of crystallization is not very desirable, this slurry can send back to petroleum tank and reprocess then by the Crude oil heater heating that circulates again.Technological parameter is as follows: crystallization temperature: 5 ℃～7 ℃; Mixing speed: 10r/min～15r/min; Crystallization time: 8 hours;
Adopt diaphragm type filter press filtering technique.
After crystallization was finished, slurry then can pump into the diaphragm type filter and filter.The diaphragm type filter comprise a series of can by means of hydraulic cylinder be used for close filter chamber's plate after opening.Be used for the solid fat and the liquid oils of fractional crystallization, this filter comprises modular assembly, for example fixed forepiece, portable end piece, complete diaphragm and filter chamber spare, curb girder, filtering emission system, compressed air distribution system, electro-hydraulic system, filter cake exhaust system etc.Lamina membranacea and chamber plate are by the propylene material manufacturing, and diaphragm is bonded together with polypropylene.Filter is furnished with a cover instrument and is used for safety and effectively operation, comprises pressure sensor, pressure switch, and magnetic valves etc. are used in technology and hydraulic system.
Technological parameter is as follows: operating pressure 1,500kPa; Filter pressure 120kPa～150kPa; Drain pressure 1500kPa; Filter chamber degree of depth 40mm; Capacity～3990L; Total filter area～196m2;
This design of workshop is used for intermittently operated, and normal plant operations can be finished by an operator.And be aided with the auxiliary worker's that a daily cleaning etc. handles help.A central switch board system is provided. it comprises the PLC system, and the people of all Electromagnetically driven valves and pump is controlled switch, the starter of motor, line-breaker, switch, interlocking relay, cable termination etc.
Main technological parameter can be controlled by the PLC system, and this system gives the cyclelog that a band graphical interfaces software is housed.By the system on this cyclelog basis, operator/engineer can monitor and control daily Workshop Production, the operation of detailed relevant filter, and pid control circuit is reported to the police, and the state of pump and driver's valve also all can enter by this PC.
Claims (1)
1. a novel preparation technology of vegetable health care oil is characterized in that adopting semicontinuous dry method fractionation technology processing cottonseed oil, and its preparation technology comprises
(1) stripping suede
After the gross cottonseed process cleaning impurity elimination, advance one, two, three road delinters successively and shell suede, the light cottonseed goes to the preliminary treatment workshop, one, two, three road short flannels are through classification packing behind the picker, preliminary treatment: the light cottonseed is through removing stone, after the screening impurity elimination, remove the decorticator laggard auger sieve of peeling off, peel off, isolated shell is transported to outside the workshop puts in storage.Isolated cotton benevolence air intake screening contains the shell amount to reduce in the benevolence, and cotton benevolence is sent into softening kettle, goes into flaker and roll the material embryo after softening, and enters plate dryer through conveying equipment, and the stock after the oven dry is sent into through conveying equipment and leached the workshop;
(2) preliminary treatment
The light cottonseed is after going stone, screening impurity elimination, and by peeling off and benevolence shell separator, isolated shell is transported to outside the workshop puts in storage, and isolated cotton benevolence contains the shell amount through special-purpose picking equipment in the reduction benevolence.Send into the leaching workshop by the stock after a series of modifier treatment through conveying equipment;
(3) immersion oil
The stock that is come by preliminary treatment enters the omnidistance infuser of Train ' s through conveying equipment and leaches, and makes that oil-containing drops to below 1% in the dregs of rice.Leach oil and enter the evaporation of stage evaporation device behind multistage filtering, miscella enters stripper, and the crude oil behind the stripping is with being pumped into the refining plant refining.Miscella is in evaporation process, and solvent vapo(u)r enters circulating tank and recycles through separately condenser after condensation divides water;
(4) cotton dregs
The wet dregs of rice after the leaching are delivered to mechanical precipitation through conveying equipment, and the dregs of rice material behind the mechanical precipitation is dried through low temperature desolventizing, and the cotton dregs after the oven dry are delivered to warehouse for finished product through conveying equipment.Reuse after the above-mentioned recovery system regeneration of the solvent vapo(u)r that oven dry is deviate from;
(5) refining
The batch (-type) oil refining process is adopted in the refining plant, leaches the workshop crude oil and squeezes into oil refining workshop deodorization pot by pump, remove residual solvent after, enter the continuous refining system and carry out alkali refining, washing, cooling back metering warehouse-in;
(6) branch is carried
Raw material quality requirement (decolouring cottonseed oil)
Free fatty: 0.1% upper limit; Moisture and volatile matter: 0.1% upper limit; But impurity screening: 0.1% upper limit; Wax and solid fat: less than 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910014301A CN101796983A (en) | 2009-02-10 | 2009-02-10 | Novel preparation technology of vegetable health care oil |
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| CN200910014301A CN101796983A (en) | 2009-02-10 | 2009-02-10 | Novel preparation technology of vegetable health care oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974787A (en) * | 2010-08-25 | 2011-02-16 | 上海酷顿机电科技有限公司 | Cotton seed, commodity linter and grease raw material co-production process based on delinting technology of cylindrical brushing machine |
| CN103666760A (en) * | 2013-12-11 | 2014-03-26 | 晨光生物科技集团股份有限公司 | Method for fractionating cottonseed oil with high freezing resistance |
| CN103937605A (en) * | 2014-05-05 | 2014-07-23 | 陕西杨凌佳美生物科技有限公司 | Extraction method of wheat germ oil |
| CN104140886A (en) * | 2014-07-14 | 2014-11-12 | 和县绿源油脂有限公司 | Extraction method of cottonseed oil |
-
2009
- 2009-02-10 CN CN200910014301A patent/CN101796983A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974787A (en) * | 2010-08-25 | 2011-02-16 | 上海酷顿机电科技有限公司 | Cotton seed, commodity linter and grease raw material co-production process based on delinting technology of cylindrical brushing machine |
| CN103666760A (en) * | 2013-12-11 | 2014-03-26 | 晨光生物科技集团股份有限公司 | Method for fractionating cottonseed oil with high freezing resistance |
| CN103666760B (en) * | 2013-12-11 | 2015-11-18 | 晨光生物科技集团股份有限公司 | Point extracting method of high frost resistance Oleum Gossypii semen |
| CN103937605A (en) * | 2014-05-05 | 2014-07-23 | 陕西杨凌佳美生物科技有限公司 | Extraction method of wheat germ oil |
| CN104140886A (en) * | 2014-07-14 | 2014-11-12 | 和县绿源油脂有限公司 | Extraction method of cottonseed oil |
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Open date: 20100811 |