CN102311876A - Two-grade distillate capture method in plant oil deodorization processing and device thereof - Google Patents
Two-grade distillate capture method in plant oil deodorization processing and device thereof Download PDFInfo
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- CN102311876A CN102311876A CN201110233051A CN201110233051A CN102311876A CN 102311876 A CN102311876 A CN 102311876A CN 201110233051 A CN201110233051 A CN 201110233051A CN 201110233051 A CN201110233051 A CN 201110233051A CN 102311876 A CN102311876 A CN 102311876A
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- sterol
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- lipid acid
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Abstract
The invention provides a two-grade distillate capture method in the plant oil deodorization processing and a device thereof. According to the invention, low-temperature and short-time deodorization as well as two-grade deodorization distillate capture are selected. By controlling different two-grade capture temperatures, aliphatic acid is effectively separated from VE and sterol, and simultaneously the collected distillate which is rich in VE and sterol is recycled to the second plate from the bottom of a deodorization tower, so as to reserve the content of VE and sterol in oil to the maximum and reduce the loss of VE and sterol during the refining process. By the adoption of the above method, the VE deodorization loss rate can be controlled to 2-5% and the sterol deodorization loss rate is 4-8%.
Description
Technical field
The present invention relates to the fats and Oils Refining Technology field, especially relate to a kind of deodour method and device that in vegetable oil deodorized treating processes, captures the two-stage overhead product.
Technical background
Vitamin E is Viteolin again, mainly contains α, β, γ, four kinds of isomer of δ.Vitamin E can provide hydrogen to living radical, thereby interrupts the free chain reaction by the active oxygen initiation, plays antioxygenation, is the natural antioxidants in the grease therefore.In addition, Viteolin also has certain medical care effect, can guarantee the normal operation of function of human body, prevents human senility and arteriosclerosis, reduces the sickness rate of cardiovascular disorder.Therefore, keep the natural VE in the grease to greatest extent, Viteolin loss in the minimizing refining process is to oil oxidative stability or trophicity is all very favourable.
Plant sterol belongs to the tetracyclic triterpenes natural product.Sterol kind in the vegetables oil is abundant, reaches 128 kinds, and wherein, what content was maximum is Sitosterol, Stigmasterol, campesterol and brassicasterol.Plant sterol is from plant oil deodorizing distillate and soap stock, to extract mostly.Plant sterol has the medicinal and health care value such as catabolism that prevent the coronary disease atherosclerosis, promote SUV; Synthesis of vitamin d 3 important intermediate such as medicine such as class such as steroid such as grade; Hair tonic, hair care and skin-nourishing agent; Change the dispersion agent spin in the industry, softening agent, inhibitor etc.
Grease deodorization is to utilize stink substance and the volatility of sweet three esters in the grease that very big-difference is arranged, and under the high temperature high vacuum condition, removes the technological process of stink substance by wet distillation.At present; Disc type plate tower is adopted in the deodorization of domestic grease enterprise more, ubiquity deodorization temperature high (250-260 ℃ even higher), the long problems such as (2-3h) of deodorization time; Only deodorization workshop section just can cause the vitamin E loss more than 30%, and the plant sterol rate of loss is more than 40%.
Summary of the invention
The purpose of this invention is to provide a kind of deodour method that in vegetable oil deodorized treating processes, captures the two-stage overhead product; Present method is selected low temperature, deodorization in short-term for use, aspect the deodorization distillate capture, selects for use two-stage to capture; Capture temperature through the control first step; Capture VE, sterol, and it is transported in deodorization tower laminate second from the bottom or the packing layer, thereby keep VE, the sterol in the oil to greatest extent.
Two-stage captures the method for overhead product in a kind of vegetable oil deodorized processing; Deodorization gold-plating after deodorization is handled through the deodorization tower with the decolouring vegetables oil goes out thing through two-stage capturing device difference condensation and collection two-stage cut; First step cut comprises VE and sterol, and it is 130-150 ℃ that the first step captures temperature; Second stage cut comprises lipid acid, and it is 40～100 ℃ that the second stage captures temperature; First step cut is re-circulated in the deodorization tower laminate second from the bottom.In order to reduce the loss of VE in the deodorising process, plant sterol; Select the two-stage deodorization distillate to capture; Make deodorization distillate condensation at twice, the control first step is captured in comparatively high temps (130-150 ℃), and first step phlegma is circulated in deodorization tower laminate second from the bottom or the packing layer through pump; The control second stage is captured in lesser temps (40-100 ℃), and condensation lipid acid also pumps into the lipid acid jar with it.
Aforesaid method is applicable to edible vegetable oil, like VT 18 and vegetable seed wet goods.
Each index of deodorised oil to obtaining after the aforesaid method processing detects; The result shows: the vitamin e loss rate in the bleached oil before relative its deodorization of deodorized vegetable oil is 2-5%; Plant sterol rate of loss in the bleached oil before relative its deodorization of deodorized vegetable oil is 4-8%, and free fatty acid content is 0.03-0.05%; Color and luster is: Y6-10, R0.1-1.0 (Lovibond colorimetric, 133mm cuvette).
Further, the present invention provides a kind of two-stage capturing device that is used for aforesaid method, and said two-stage capturing device is connected with the deodorization top of tower through pipeline; Said two-stage capturing device comprises sterol and the V that is arranged in order in the pipeline
ETrap and lipid acid trap, said sterol and V
EConnect sterol and V behind the trap in addition
ETemporary jar, sterol and V
ETransferpump and interchanger one, said sterol and V
ETemporary jar through sterol and V
EIn transferpump, valve and pipe connection to the deodorization tower layer second from the bottom; Also connect the temporary jar of lipid acid, lipid acid transferpump, interchanger two and lipid acid hold-up vessel behind the said lipid acid trap in addition.Said sterol and V
ETrap is made up of stainless steel mesh, nozzle, filler, cylindrical shell; Principle of work is for being rich in sterol and V
ELiquid through nozzle spray deodorization steam, make sterol and V in the steam
ECooling becomes liquid state, reaches to capture sterol and V
EPurpose; Said lipid acid trap is made up of stainless steel mesh, nozzle, filler, cylindrical shell; Principle of work is to be rich in the liquid of lipid acid through nozzle spray deodorization steam, makes the lipid acid cooling in the steam become liquid state, reaches the purpose that captures lipid acid.
Relate to vegetables oil among the present invention and adopt the deodorization tower to carry out the process that deodorization is handled, can adopt conventional deodorization tower and deodorizing technology, wherein a kind of feasible scheme is: bleached oil through the deaerator deoxygenation, is heated to 185 ℃; Get into tray column, be heated to 235 ℃, open steam stripping 15min; Carry out the temperature-sensitive decolouring, get into packing tower then, 235 ℃ of temperature; Stop 5min, carry out the stripping depickling, get into the plate tower again; Open steam stripping 15min, at last with carrying out the essence filter after the oily vacuum cooling to 45 ℃, deodorised oil.The present invention is provided with said two-stage capturing device behind the vapour passage of deodorization top of tower; Be used to capture the two-stage cut; The first step cut that traps is circulated in the deodorization tower plate column second from the bottom more again, so can gets the deodorized vegetable oil of the content that keeps VE in the oil, sterol to the limit after the circular treatment.
Description of drawings
Fig. 1 is the structural representation of two-stage capturing device among the present invention.
Embodiment
For further specifying the present invention, specify in conjunction with following examples:
The two-stage capturing device that uses among the following embodiment, as shown in Figure 1, be arranged on outside the deodorization tower, mainly by sterol and V
ETrap 1, sterol and V
ETemporary jar 2, sterol and V
ETransferpump 3, interchanger 1, lipid acid trap 5, temporary jar 6 in lipid acid, lipid acid transferpump 7, interchanger 28, valve and tower body are formed.
Wherein the two-stage capturing device is connected with the deodorization top of tower through pipeline; Sterol and V
ETrap 1 is arranged in the pipeline sterol and V in order with lipid acid trap 5
ETrap 1 back connects sterol and V
EKeep in jar 2, sterol and V
ETransferpump 3 and interchanger-4, sterol and V
ETemporary jar 2 through sterol and V
EIn transferpump 3, valve and pipe connection to the deodorization tower layer second from the bottom; Said lipid acid trap 5 backs connect temporary jar 6 in lipid acid, lipid acid transferpump 7, interchanger 28 and lipid acid hold-up vessel.Trap is made up of stainless steel mesh, nozzle, filler, cylindrical shell.
Welded top at capturing device has hanger, is convenient to install and transportation.
Lagging material is equipped with in outside at capturing device, makes device that effect of heat insulation preferably arranged.
Embodiment 1:
To decolour VT 18 at 130 ℃,, be heated to 185 ℃, get into tray column through the deaerator deoxygenation; Be heated to 235 ℃, open steam stripping 15min carries out the temperature-sensitive decolouring, gets into packing tower then; 235 ℃ of temperature stop 5min, carry out the stripping depickling, get into the plate tower again; Open steam stripping 15min, at last with carrying out the essence filter after the oily vacuum cooling to 45 ℃, deodorised oil.The deodorization gold-plating that steams in the deodorization top of tower in the above-mentioned deodorising process goes out thing and carries out condensation and collection two-stage cut through the two-stage capturing device; The first step captures 135 ℃ of temperature; Condensation product is re-circulated to deodorization tower laminate second from the bottom further to remove lipid acid; The second stage captures 50 ℃ of temperature, captures lipid acid, and its condensation is pumped into the lipid acid jar.
Detect the deodorised oil index, the result is following, vitamin E deodorization rate of loss: 3.6%, and sterol deodorization rate of loss is: 6.2%, free fatty acid content is 0.037% in the deodorised oil, color and luster is: Y7R0.2.
Embodiment 2:
To decolour rapeseed oil at 130 ℃,, be heated to 185 ℃, get into tray column through the deaerator deoxygenation; Be heated to 235 ℃, open steam stripping 15min carries out the temperature-sensitive decolouring, gets into packing tower then; 235 ℃ of temperature stop 5min, carry out the stripping depickling, get into the plate tower again; Open steam stripping 15min, at last with carrying out the essence filter after the oily vacuum cooling to 45 ℃, deodorised oil.The deodorization gold-plating that steams in the deodorization top of tower in the above-mentioned deodorising process goes out thing and carries out condensation and collection two-stage cut through the two-stage capturing device; The first step captures 140 ℃ of temperature; Condensation product is re-circulated to deodorization tower laminate second from the bottom or packing layer to remove wherein lipid acid; The second stage captures 60 ℃ of temperature, captures lipid acid, and its condensation is pumped into the lipid acid jar.
Detect the deodorised oil index, the result is following: vitamin E deodorization rate of loss: 3.9%, and sterol deodorization rate of loss is: 7.8%, free fatty acid content is 0.035% in the deodorised oil, color and luster is: Y10R0.7.
The measuring method that adopts among the present invention is following:
The mensuration of content of vitamin E: ultraviolet detection-HPLC;
The mensuration of sterol content: vapor-phase chromatography;
The mensuration of free fatty acid content: with reference to GB/T 5530-2005 animal-plant oil acid number and acid test;
The mensuration of color and luster: with reference to the mensuration of GB/T 22460-2008 animal-plant oil Lovibond color and luster.
Claims (6)
1. two-stage captures the method for overhead product in the vegetable oil deodorized processing; It is characterized in that: the deodorization gold-plating after the deodorization of the vegetables oil that will decolour process deodorization tower is handled goes out thing through two-stage capturing device difference condensation and collection two-stage cut; First step cut comprises VE and sterol, and it is 130-150 ℃ that the first step captures temperature; Second stage cut comprises lipid acid, and it is 40～100 ℃ that the second stage captures temperature; First step cut is re-circulated in the deodorization tower laminate second from the bottom.
2. method according to claim 1 is characterized in that: said vegetables oil is VT 18 and rapeseed oil.
3. the deodorized vegetable oil that after claim 1 or 2 described methods processing, obtains.
4. deodorized vegetable oil according to claim 3 is characterized in that: wherein VE deodorization rate of loss is 2-5%, and sterol deodorization rate of loss is 4-8%.
5. be used for the two-stage capturing device of the said method of claim 1, it is characterized in that: said two-stage capturing device is connected with the deodorization top of tower through pipeline; Said two-stage capturing device comprises sterol and the V that is arranged in order in the pipeline
ETrap and lipid acid trap, said sterol and V
EConnect sterol and V behind the trap in addition
ETemporary jar, sterol and V
ETransferpump and interchanger one, said sterol and V
ETemporary jar through sterol and V
EIn transferpump, valve and pipe connection to the deodorization tower layer second from the bottom.
6. two-stage capturing device according to claim 5 is characterized in that: connect the temporary jar of lipid acid, lipid acid transferpump, interchanger two and lipid acid hold-up vessel behind the said lipid acid trap in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110233051A CN102311876A (en) | 2011-08-16 | 2011-08-16 | Two-grade distillate capture method in plant oil deodorization processing and device thereof |
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| CN201110233051A CN102311876A (en) | 2011-08-16 | 2011-08-16 | Two-grade distillate capture method in plant oil deodorization processing and device thereof |
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| CN102311876A true CN102311876A (en) | 2012-01-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046512A (en) * | 2014-07-01 | 2014-09-17 | 迈安德集团有限公司 | Vegetable oil deodorization system |
| CN111117766A (en) * | 2019-12-11 | 2020-05-08 | 深圳市优德油脂工程技术有限公司 | Edible oil refining method and edible oil refining system |
Citations (4)
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| US3933953A (en) * | 1972-06-06 | 1976-01-20 | Max Leva | Apparatus for deodorizing fats and oils |
| CN1556847A (en) * | 2001-09-04 | 2004-12-22 | ����Ip�ع�����˾ | Methods for treating deodorizer distillate |
| CN101564063A (en) * | 2008-04-24 | 2009-10-28 | 邹平三星油脂工业有限公司 | Corn oil with high vitamin E and phytosterin contents and production method thereof |
| CN202181293U (en) * | 2011-08-16 | 2012-04-04 | 山东渤海实业股份有限公司 | Two-stage trapping device outside deodorization tower |
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2011
- 2011-08-16 CN CN201110233051A patent/CN102311876A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933953A (en) * | 1972-06-06 | 1976-01-20 | Max Leva | Apparatus for deodorizing fats and oils |
| CN1556847A (en) * | 2001-09-04 | 2004-12-22 | ����Ip�ع�����˾ | Methods for treating deodorizer distillate |
| CN101564063A (en) * | 2008-04-24 | 2009-10-28 | 邹平三星油脂工业有限公司 | Corn oil with high vitamin E and phytosterin contents and production method thereof |
| CN202181293U (en) * | 2011-08-16 | 2012-04-04 | 山东渤海实业股份有限公司 | Two-stage trapping device outside deodorization tower |
Non-Patent Citations (4)
| Title |
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| 严有兵等: "五层双壳体脱臭塔在生产中的应用", 《中国油脂》 * |
| 赵国志等: "油脂脱臭馏出物的回收和利用", 《中国油脂》 * |
| 雷炳福等: "以生育酚为目标的油脂脱臭馏出物的生产", 《中国油脂》 * |
| 马传国: "《油脂加工工艺与设备》", 31 January 2004, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046512A (en) * | 2014-07-01 | 2014-09-17 | 迈安德集团有限公司 | Vegetable oil deodorization system |
| CN104046512B (en) * | 2014-07-01 | 2016-01-13 | 迈安德集团有限公司 | A kind of vegetable oil deodorized system |
| CN111117766A (en) * | 2019-12-11 | 2020-05-08 | 深圳市优德油脂工程技术有限公司 | Edible oil refining method and edible oil refining system |
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Address after: 256500 Binhe Road, Boxing County, Shandong, 333 Applicant after: Shandong Bohi Industry Co., Ltd. Applicant after: QINGDAO HOHO HUITU ENGINEERING TECHNOLOGY CO., LTD. Applicant after: Qingdao Bohi Agriculture Development Co., Ltd. Applicant after: Qingdao Bohi Technology Co., Ltd. Address before: 256500 Binhe Road, Boxing County, Shandong, 333 Applicant before: Shandong Bohi Industry Co., Ltd. Applicant before: Qingdao Bohi Hoho Eng. & Tech. Co., Ltd. Applicant before: Qingdao Bohi Agriculture Development Co., Ltd. Applicant before: Qingdao Bohi Technology Co., Ltd. |
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Application publication date: 20120111 |