CN106281675A - A kind of deodorizing technology in low acid number vegetable insulating oil preparation - Google Patents
A kind of deodorizing technology in low acid number vegetable insulating oil preparation Download PDFInfo
- Publication number
- CN106281675A CN106281675A CN201610730301.9A CN201610730301A CN106281675A CN 106281675 A CN106281675 A CN 106281675A CN 201610730301 A CN201610730301 A CN 201610730301A CN 106281675 A CN106281675 A CN 106281675A
- Authority
- CN
- China
- Prior art keywords
- insulating oil
- oil
- vacuum pump
- valve
- deodorize
- 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.)
- Pending
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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/04—Fatty oil fractions
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses the deodorizing technology in the preparation of a kind of low acid number vegetable insulating oil, comprise the following steps: 1) open vacuum pump, close vacuum valve, by the rapeseed insulating oil after secondary alkali refining by vacuum pump suction deodorizing tank from secondary alkali refining tank, holding vacuum pump works, make vacuum maintain below 0.9Pa, then insulating oil is heated to 130 DEG C；2) in stripped vapor generator, pump into pure water, carry out 150 DEG C of heating, produce stripped vapor；3) state keeping vacuum pump work and deodorize valve to open, raises deodorizing tank temperature, is allowed to arrive 240 DEG C, is controlling pressure deodorize under the conditions of 0.8kPa, and deodorization time is 2 hours；Opening cooling water valve after 2 hours, cooled deodorizing tank 7 hours by water cooler, after internal temperature reaches 60 DEG C, deodorising process i.e. completes, and can enter subsequent processing；4) after above-mentioned deodorize processes, rapeseed insulating oil odorlessness, acid value is more than 220 DEG C less than 0.3mg KOH/g oil and smoke point, it is achieved deodorising effect.
Description
Technical field
The present invention relates to vegetable insulating oil preparing technical field, especially relate in the preparation of a kind of low acid number vegetable insulating oil
Deodorizing technology.
Background technology
Vegetable insulating oil is that a kind of burning-point is high, pollution-free, high temperature resistant, degradable and that electrical strength is suitable with mineral oil is green
Colour circle protects liquid dielectric, is the ideal substitute of mineral insulating oil.Plant type transformer oil has been put into actual application at present
In, such as " BIOTEMP " vegetable oil transformator of ABB, it is possible at-37.4 DEG C, clean boot runs, the FR3 of Cooper company
Oil applied voltage grade is up to 242kV, has run more than ten years in 150,000 transformators.AE Pa Wa Co., Ltd. develops
" Ecoretrans " vegetable oil transformator is put into commercial operation.In China, State Grid Corporation of China, Southern Power Grid Company all propose
Green network construction object, First has the vegetable insulating oil distribution transformer of independent intellectual property right and hung in 2010
Network operation.
The RBD oil manufacture process of University Of Chongqing's independent development is: after vegetable oil is carried out first alkali refining, desolventing technology, then
Change alkali refining parameter, carry out secondary alkali refining and process with deodorize, then carrying out three alkali refinings.The acid number of the vegetable oil after three alkali refinings
Less than 0.03.Can be prepared by meeting the low acid number that GB2536-1990 requires by the oil dehydration after three alkali refinings, addition additive again
Insulating oil.Owing to vegetable oil itself has special taste, after desolventing technology, also have the aldehydes of trace, ketone, hydro carbons, low
Molecules of fatty acids, the oxide of glyceride and hargil, the abnormal smells from the patient of residual solvent, need the abnormal smells from the patient bad to these and gaseous impurity
It is removed.Meanwhile, more strict for oxidizing gas content requirement relatively common vegetable oil in vegetable insulating oil, therefore will be
The deodorize of tradition edible vegetable oil improves on the basis of processing.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of can remove abnormal smells from the patient and gaseous impurity in vegetable insulating oil
Deodorizing technology in the preparation of low acid number vegetable insulating oil.
For solving above-mentioned technical problem, the technical solution used in the present invention is, comprises the following steps:
Step one, deoxidation treatment that oils and fats is carried out:
1) oils and fats after secondary alkali refining being passed through deodorization device, intake is the 60%～70% of equipment total measurement (volume), opens vacuum pump,
Close vacuum valve, make vacuum maintain below-0.9Pa；
2) low temperature is maintained under vacuum, and temperature < 70 DEG C, steam-stirring；
3) through step 1) and 2), the oxygen in oils and fats can be removed；
This step major advantage: oils and fats deoxygenation can remove the oxygen being dissolved in oils and fats, prevents in follow-up deodorising process
Oxidation of Fat and Oils；
Step 2, oils and fats is carried out strip deodorize:
1) pumping into pure water in stripped vapor generator, carry out 150 DEG C of heating, produce stripped vapor, stripped vapor consumption is
30～50kg/(t oil h)；
2) raise deodorization device oil temperature to 120 DEG C between 150 DEG C, open steam valve, stripped vapor is passed through deodorization device, thus
Form mist of oil；Open deodorize valve again, carry out deodorize under vacuum；
3) continuation rising odor removing pot oil temperature is between 180 DEG C～250 DEG C, takes off under the conditions of 0.65～1.3kPa controlling vacuum
Smelly, whole deodorization time is 2 to 5 hours；
This step major advantage: in deodorising process, the stink substance remained in oil after alkali refining and clay treatment can be removed, carry
The smoke point of high oils and fats, moreover it is possible to removing free fatty, peroxide and catabolite thereof and thermal sensitivity pigment, removes the oil plant that goes rotten
The volatile decomposition thing of middle protein, removes the polycyoalkane of small-molecular-weight.
Step 3, the oils and fats after deodorize is carried out cold filtration:
1) deodorize oils and fats can reclaim heat by the oil-oil heat exchanger in deodorization device to enter tank cold oil fat；
2) after reclaiming heat, the most further oils and fats can be cooled by water cooler, when temperature is down to
Can filter with ingress of air after 60 DEG C；
This step major advantage: this step can will complete the oils and fats of deodorising process and the heat recovery profit of heating agent steam condensate (SC)
With, and then reduce operating cost.Deviate from the impurity such as metallo-chelate simultaneously.
Detailed description of the invention
Hereinafter the preferred embodiments of the present invention will be described in detail.Should be appreciated that preferred embodiment is only for saying
The bright present invention rather than in order to limit the scope of the invention.
Embodiment 1
Deodorizing technology in low acid number vegetable insulating oil of the present invention preparation, comprises the following steps:
1) open vacuum pump, close vacuum valve, by the rapeseed insulating oil after secondary alkali refining by vacuum pump from secondary alkali refining tank
Suction deodorizing tank, holding vacuum pump works, makes vacuum maintain below-0.9Pa, then insulating oil is heated to 130 DEG C；
2) in stripped vapor generator, pump into pure water, carry out 150 DEG C of heating, produce stripped vapor, until steam generator
Open lower steam valve when interior vapor pressure is to 0.2～0.35MPa, make high-temperature steam spray into deodorizing tank, form mist of oil, then open
Steam valve, the steam making ejection is contorted upper spray, makes oil be fully contacted with steam, continues to vacuum pump work, then opens
Deodorize valve, makes odorous gas discharge；
3) state keeping vacuum pump work and deodorize valve to open, raises deodorizing tank temperature, is allowed to arrive 240 DEG C, is controlling pressure
Strong deodorize under the conditions of 0.8kPa, deodorization time is 2 hours；Open cooling water valve after 2 hours, by water cooler to de-
Smelly tank carries out cooling 7 hours, and after internal temperature reaches 60 DEG C, deodorising process i.e. completes, and can enter subsequent processing；
4) after above-mentioned deodorize processes, rapeseed insulating oil odorlessness, acid value is more than 220 DEG C less than 0.3mg KOH/g oil and smoke point,
Realize deodorising effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, it is clear that those skilled in the art
Member can carry out various change and modification without departing from the spirit and scope of the present invention to the present invention.So, if the present invention
These amendments and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these
Change and including modification.
Claims (1)
1. the deodorizing technology in one kind low acid number vegetable insulating oil preparation, it is characterised in that comprise the following steps:
1) open vacuum pump, close vacuum valve, by the rapeseed insulating oil after secondary alkali refining by vacuum pump from secondary alkali refining tank
Suction deodorizing tank, holding vacuum pump works, makes vacuum maintain below-0.9Pa, then insulating oil is heated to 130 DEG C；
2) in stripped vapor generator, pump into pure water, carry out 150 DEG C of heating, produce stripped vapor；Until steam generator
Open lower steam valve when interior vapor pressure is to 0.2～0.35MPa, make high-temperature steam spray into deodorizing tank, form mist of oil, then open
Steam valve, the steam making ejection is contorted upper spray, makes oil be fully contacted with steam；Continue to vacuum pump work, then open
Deodorize valve, makes odorous gas discharge；
3) state keeping vacuum pump work and deodorize valve to open, raises deodorizing tank temperature, is allowed to arrive 240 DEG C, is controlling pressure
Strong deodorize under the conditions of 0.8kPa, deodorization time is 2 hours；Open cooling water valve after 2 hours, by water cooler to de-
Smelly tank carries out cooling 7 hours, and after internal temperature reaches 60 DEG C, deodorising process i.e. completes, and can enter subsequent processing；
4) after above-mentioned deodorize processes, rapeseed insulating oil odorlessness, acid value is more than 220 DEG C less than 0.3mg KOH/g oil and smoke point,
Realize deodorising effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730301.9A CN106281675A (en) | 2016-08-26 | 2016-08-26 | A kind of deodorizing technology in low acid number vegetable insulating oil preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730301.9A CN106281675A (en) | 2016-08-26 | 2016-08-26 | A kind of deodorizing technology in low acid number vegetable insulating oil preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106281675A true CN106281675A (en) | 2017-01-04 |
Family
ID=57676992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610730301.9A Pending CN106281675A (en) | 2016-08-26 | 2016-08-26 | A kind of deodorizing technology in low acid number vegetable insulating oil preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106281675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940854A (en) * | 2021-04-12 | 2021-06-11 | 华中农业大学 | Deodorization treatment process for edible oil |
| CN115433631A (en) * | 2022-08-19 | 2022-12-06 | 包音都古荣金花 | Mutton smell removing and deodorizing dispersion process and device for sheep tail oil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263510A (en) * | 2014-10-09 | 2015-01-07 | 重庆大学 | Deodorization process for preparation of low-acidity vegetable insulating oil |
-
2016
- 2016-08-26 CN CN201610730301.9A patent/CN106281675A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263510A (en) * | 2014-10-09 | 2015-01-07 | 重庆大学 | Deodorization process for preparation of low-acidity vegetable insulating oil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940854A (en) * | 2021-04-12 | 2021-06-11 | 华中农业大学 | Deodorization treatment process for edible oil |
| CN115433631A (en) * | 2022-08-19 | 2022-12-06 | 包音都古荣金花 | Mutton smell removing and deodorizing dispersion process and device for sheep tail oil |
| CN115433631B (en) * | 2022-08-19 | 2024-03-29 | 包音都古荣金花 | Dispersing process and device for removing mutton smell and deodorizing of sheep tail grease |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104263510A (en) | Deodorization process for preparation of low-acidity vegetable insulating oil | |
| CN106281675A (en) | A kind of deodorizing technology in low acid number vegetable insulating oil preparation | |
| CN106118872A (en) | Energy-saving natural grease insulating oil method for refining | |
| WO2018145332A1 (en) | Method and device for physical deacidification and deodorization of high acid-value, thermally unstable oil | |
| CN104611123A (en) | Extraction process method of animal grease | |
| CN104232298A (en) | Oil and fat refining process | |
| CN103087821A (en) | Rice bran oil refining method for reserving oryzanol | |
| Chairul et al. | Potential of used cooking oil as dielectric liquid for oil-immersed power transformers | |
| CN104762131A (en) | Deodorizing method for inhibiting generation of glycidyl ester in oil | |
| CN107384537A (en) | A kind of vegetable insulating oil and preparation method thereof | |
| CN205974461U (en) | Vegetable wool olein smelts equipment of using | |
| CN212560165U (en) | Deodorization system for reducing glycidyl ester and plasticizer of vegetable oil | |
| CN202543170U (en) | Novel fragrance recovery equipment | |
| CN112674186A (en) | Preparation method of pomelo flower tea | |
| US20230383215A1 (en) | Liquid oils without unwanted contaminants | |
| CN106967504A (en) | A kind of natural esters insulating oil extracts alkali refining mixing acid stripping method | |
| CN114045186B (en) | Illegal cooking oil-based insulating oil and preparation method thereof | |
| CN206418077U (en) | Biohazard Waste harmless treatment and the special equipment of recycling | |
| CN206927867U (en) | The oil and fat refining deacid-deodoring device of heat-recoverable | |
| CN103614238B (en) | High temperature refining system and method for high DHA / EPA oil | |
| CN209890580U (en) | Vacuum system for soybean oil refining | |
| CN109852471A (en) | It is a kind of to refine the small manufacture craft for squeezing rapeseed oil | |
| CN107488495A (en) | A kind of peony seed oil reparation technology | |
| CN105779097B (en) | A kind of high temperature resistant preparation of greases method | |
| CN214571779U (en) | Vegetable oil refining vacuum deodorization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
|
| RJ01 | Rejection of invention patent application after publication |