CN106190501B - A kind of high flashover point transformer oil and preparation method thereof - Google Patents
A kind of high flashover point transformer oil and preparation method thereof Download PDFInfo
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- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/401—Fatty vegetable or animal oils used as base material
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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
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Abstract
The invention provides a kind of high flashover point transformer oil, is made up of base oil, antioxidant, pour-point depressant, anti-light sensitive agent and matal deactivator, described base oil is made up of narrow fraction naphthene base crude oil and modified vegetable oil.Present invention also offers the preparation method of high flashover point transformer oil, including prepare narrow fraction naphthene base crude oil the step of；One the step of preparing modified vegetable oil；Narrow fraction naphthene base crude oil and modified vegetable oil are squeezed into reactor, after stirring, by clay-filtered, antioxidant additive, pour-point depressant, anti-light sensitive agent and matal deactivator, vavuum pump negative pressure 0.8KPa applications of vacuum 1~3 time are added after filtering.The open flash point of transformer oil of the present invention can be to 270 320 DEG C, and burning-point reaches 300 350 DEG C, and breakdown voltage reaches 80~100KV/2.5mm.This product security performance is significantly larger than traditional transformer oil.Product quality meets the standards of U.S. ASTM D 5,222 2008.
Description
Technical field
The present invention relates to chemical field, more particularly to transformer oil, particularly a kind of high flashover point transformer oil and its system
Preparation Method.
Background technology
Transformer oil, refer to be used in the oil-filled electric equipments such as transformer, reactor, transformer, sleeve pipe, oil circuit breaker, rise
Insulation, cooling, a kind of insulation oil product of information carrier and protective effect.Transformer is mainly using mineral insulating oil at present,
Such transformer oil has good insulating properties and electric property, and cost is not also high, therefore is widely used in transformer at present
In market, but conventional mineral insulating oil burning-point is low (generally 170 DEG C or so), and safety coefficient is not high.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of high flashover point transformer oil, and described this transformer oil will
Solves in the prior art the problem of transformer oil flash-point burning-point is low, and safety coefficient is not high.
The invention provides a kind of high flashover point transformer oil, by base oil, antioxidant, pour-point depressant, anti-light sensitive agent and gold
Belong to passivator composition, described base oil is made up of narrow fraction naphthene base crude oil and modified vegetable oil, described narrow fraction cycloalkyl
Percentage by weight of the oil in transformer oil is 70%~80%, weight percent of the described modified vegetable oil in transformer oil
Than for 18%~28%, percentage by weight of the described antioxidant in transformer oil is 0.5%~1.0%, described pour point depression
Percentage by weight of the agent in transformer oil is 0.5%~1.0%, weight hundred of the described anti-light sensitive agent in transformer oil
Divide than being 0.1%~0.5%, percentage by weight of the described matal deactivator in transformer oil is 0.1%~0.5%, institute
For the %Cp values for the narrow fraction naphthene base crude oil stated between 42-50, the carbon atom that Cp values refer on alkyl side chain accounts for whole molecule total carbon
Several percentage.
Further, described modified vegetable oil is by the two or more things in rapeseed oil, peanut oil, cotton seed oil, olive oil
The mixing of matter, the formula of described modified vegetable oil be,
Wherein R1、R2、R3The alkyl or alkylene for being 12-23 for carbon number.
Further, described antioxidant is 2, and 6-di-tert-butylphenol, 2,6-BHT or phenolic ester type resist
Any one in oxygen agent.
Further, described pour-point depressant is that T-803B (the blue refining of polyalphaolefin), T803D (polyalphaolefin) or T602HB are (poly-
Methacrylate) in any one.
Further, described anti-light sensitive agent is the adsorbent or HE1127 that granularity is 40 mesh, working substance is 99.99%
Light stabilizer.
Further, described matal deactivator is BTA or 2- methyl-BTA.
Present invention also offers the preparation method of above-mentioned high flashover point transformer oil,
1) the step of preparing narrow fraction naphthene base crude oil including one；
2) the step of preparing modified vegetable oil including one,
3) narrow fraction naphthene base crude oil, modified vegetable oil, antioxidant, pour-point depressant, anti-light sensitivity are weighed according to percentage by weight
Agent and matal deactivator, while bleaching earth is weighed, the percentage by weight of described carclazyte is respectively narrow fraction naphthene base crude oil, changed
Property vegetable oil, antioxidant, pour-point depressant, the gross mass 3%-6% of anti-light sensitive agent and matal deactivator, then in a reactor
Middle addition narrow fraction naphthene base crude oil and modified vegetable oil, 50 DEG C of -60 DEG C of stirring 30-60 minutes, add at a temperature of 80 DEG C~100 DEG C
Enter carclazyte, while carry out the stirring and adsorbing of 90~120min times, until adsorption reaction is uniform, is deposited in and filters 2 by filter
After~3 times, antioxidant additive, pour-point depressant, photosensitizing agents and matal deactivator, vavuum pump negative pressure 0.8KPa, vacuum are added
Processing 1~3 time.
Further, narrow fraction naphthene base crude oil step is prepared described, first squeezes into naphthene base crude oil in destilling tower,
Atmospheric and vacuum distillation is carried out, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~350 DEG C of distillate, is then added
Hydrogen refines, and the reaction pressure of reactor is 8~15MPa in unifining process, and reaction temperature is 280~360 DEG C, and oil-feed is always empty
Speed is 0.35~0.65/h, and reaction hydrogen to oil volume ratio is 800~950, relative to hydrotreating catalyst air speed 0.5~0.85/
H, relative to Hydrobon catalyst air speed 0.85-1.95/h, the catalyst in described unifining process is Mo-W/
Al2O3, or Ni-W-Co/Al2O3, obtain narrow fraction naphthene base crude oil.
Further, it is described the step of preparing modified vegetable oil in, first select rapeseed oil, peanut oil, cotton seed oil,
The two or more goods and materials of olive oil are raw material, first carry out hydrofinishing, in unifining process the reaction pressure of reactor for 6~
12MPa, reaction temperature are 200~400 DEG C, and the total air speed of oil-feed is 0.5~1.0/h, and reaction hydrogen to oil volume ratio is 600~800, institute
Catalyst in the unifining process stated is Ni-W/AL2O3Or Ni-Mo-Co/AL2O3, atmospheric and vacuum distillation is then carried out, is subtracted
Pressure distillation technique is 1~65mmHg of residual voltage, cuts 300~460 DEG C of atmospheric distillate, obtains hydrogenated vegetable oil；Then carry out
Alkali cleaning, uses NaOH solution of the mass percent concentration for 6%-10%, and dosage is the 2%- of modified basic weight of oil
6%, temperature control after washing 60-90min, after oil water separator, is carried out at 70-80 DEG C into next reactor
Once wash, the dosage of water is the 5%-10% of modified basic weight of oil, and temperature control washs 60-90min at 70-80 DEG C, logical
After crossing oil water separator；Secondary alkali cleaning is carried out, uses the aqueous solution to be washed for the salt of alkalescence, described alkaline salt is quality
Percent concentration is 5%-8% Na2CO3Solution, dosage are the 1%-5% of modified basic weight of oil, and temperature control is in 70-80
DEG C, after washing 60-90min, after oil water separator, once washed into next reactor, the dosage of water is
The 5%-10% of modified basic weight of oil, temperature control after washing 60-90min, after oil water separator, obtain at 70-80 DEG C
To modified vegetable oil.
Further, described bleaching earth is the atlapulgite that activity degree is more than 180mmol/kg.
The present invention has advantages below:
1. this product open flash point is at 270-320 DEG C, at 300-350 DEG C, the open flash point of traditional transformer oil exists burning-point
150-170 DEG C, for burning-point at 170-200 DEG C, the security performance of this product is high.
2. this product breakdown voltage reaches 80~100KV/2.5mm, the insulating capacity of transformer is substantially increased.Tradition production
Product breakdown voltage is substantially in 35~50KV/2.5mm.
3. the medium consumption factor (90 DEG C) of this product can reach less than 0.001, the dielectric loss of traditional transformer oil because
Plain (90 DEG C) are oily better than traditional transformer typically more than 0.001.
4. the acid number of this product is can be controlled in below 0.01mgKOH/kg, meet technologies of the GB2536-2011 to acid number
Index request.
5. the antioxygenic property of this product is excellent, not easy to change, service life length.140 DEG C of rotary oxygen bomb times can reach
300-400min, and the rotary oxygen bomb time of traditional transformer oil is 100-150min, easily discoloration jaundice.
The present invention compares with prior art, and its effect is positive and obvious.With traditional transformer oil phase ratio, the present invention becomes
The open flash point of depressor oil can arrive 270-320 DEG C, and burning-point reaches 300-350 DEG C；In addition the acid number of vegetable oil is very high, does not meet mark
Standard, and this product solves the problems, such as that vegetable oil acid number is high well, while take full advantage of its flash-point and fire high advantage, this production
Product security performance is significantly larger than traditional transformer oil.
Embodiment：
Embodiment 1
The invention provides a kind of high flashover point transformer oil, by narrow fraction naphthene base crude oil, modified vegetable oil, antioxidant, drop
Solidifying agent, anti-light sensitive agent and matal deactivator composition.Percentage by weight of the described narrow fraction naphthene base crude oil in transformer oil
For 75%, percentage by weight of the described modified vegetable oil in transformer oil is 22%, take 75% narrow fraction naphthene base crude oil and
After 22% modified vegetable oil stirs 50 minutes at 50 DEG C, transformer oil percentage by weight is incorporated as at a temperature of 100 DEG C is
5% carclazyte, while be stirred refined absorption 100min, until adsorption reaction is uniform, precipitation by filter filter 2 times with
Afterwards, antioxidant additive, pour-point depressant, photosensitizing agents and matal deactivator mixing are added, described antioxidant additive is described
Mass percent in transformer oil is 1.0%, and mass percent of the described pour-point depressant in described transformer oil is
1.0%, mass percent of the described anti-light sensitive agent in described transformer oil is 0.5%, described matal deactivator
Mass percent in described transformer oil is 0.5%, and vavuum pump circulating vacuum negative pressure 0.8KPa is handled 2 times.
Further, described bleaching earth is the atlapulgite that activity degree is more than 180mmol/kg.
The preparation method of described narrow fraction naphthene base crude oil is：Naphthene base crude oil is squeezed into destilling tower, carries out Atmospheric vacuum steaming
Evaporate, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~350 DEG C of distillate, then carries out hydrofinishing, hydrogenation essence
The reaction pressure of reactor is 12MPa during system, and reaction temperature is 320 DEG C, and the total air speed of oil-feed is 0.5/h, reactive hydrogen oil body
Product is described relative to Hydrobon catalyst air speed 1.5/h relative to hydrotreating catalyst air speed 0.65/h than being 850
Catalyst in unifining process is Mo-W/Al2O3, obtain narrow fraction naphthene base crude oil.
Described modified vegetable oil is made up of rapeseed oil and peanut oil, and described rapeseed oil is in described modified vegetable oil
Mass percent be 60%, mass percent of the described peanut oil in described modified vegetable oil be 40%, its prepare
Method is：First carry out hydrofinishing, the reaction pressure of reactor is 8MPa in unifining process, and reaction temperature is 300 DEG C, is entered
Oily total air speed is 0.8/h, and reaction hydrogen to oil volume ratio is 700, and the catalyst in described unifining process is Ni-W/AL2O3,
Atmospheric and vacuum distillation is then carried out, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~460 DEG C of atmospheric distillate, obtains
To hydrogenated vegetable oil.Then the NaOH solution that concentration is 8% is first used, dosage is the 5% of improved plant weight of oil, and temperature control exists
80 DEG C, after washing 80min, after oil water separator, washed into next reactor, dosage is modified vegetable oil
The 8% of weight, temperature control is at 70 DEG C, after washing 60min, after oil water separator；Carry out secondary alkali cleaning, use concentration for
8% Na2CO3Solution, dosage are the 5% of improved plant weight of oil, and temperature control after washing 60min, passes through profit at 75 DEG C
After separator, once washed into next reactor, dosage is the 8% of improved plant weight of oil, and temperature control exists
70 DEG C, after washing 70min, after oil water separator, obtain modified vegetable oil.
Further, described antioxidant is 2,6-di-tert-butylphenol.
Further, described pour-point depressant is T-803B (the blue refining of polyalphaolefin).
Further, described matal deactivator is BTA (BTA).
Further, the adsorbent that described anti-light sensitive agent is the mesh of granularity 40, working substance is 99.99%.
Every physical and chemical index is shown in Table 1.
Embodiment 2
The invention provides a kind of high flashover point transformer oil, by narrow fraction naphthene base crude oil, modified vegetable oil, antioxidant, drop
Solidifying agent, anti-light sensitive agent and matal deactivator composition.Percentage by weight of the described narrow fraction naphthene base crude oil in transformer oil
For 70%, percentage by weight of the described modified vegetable oil in transformer oil is 28%, by rapeseed oil, peanut oil and cotton seed oil
Mixing.After taking 70% narrow fraction naphthene base crude oil and 28% modified vegetable oil to be stirred 40 minutes at 55 DEG C, at a temperature of 90 DEG C
It is incorporated as transformer oil percentage by weight and is 6% carclazyte, while be stirred refined absorption 90min, until adsorption reaction is equal
Even, precipitation adds antioxidant additive, pour-point depressant, photosensitizing agents and matal deactivator mixing after filter filters 2 times,
Mass percent of the described antioxidant additive in described transformer oil is 0.5%, and described pour-point depressant is in described change
Mass percent in depressor oil is 0.5%, and mass percent of the described anti-light sensitive agent in described transformer oil is
0.5%, mass percent of the described matal deactivator in described transformer oil is 0.5%, and vavuum pump circulating vacuum is born
0.8Kpa is pressed to handle 2 times.
The preparation method of described narrow fraction naphthene base crude oil is：Naphthene base crude oil is squeezed into destilling tower, carries out Atmospheric vacuum steaming
Evaporate, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~350 DEG C of distillate, then carries out hydrofinishing, hydrogenation essence
The reaction pressure of reactor is 10MPa during system, and reaction temperature is 350 DEG C, and the total air speed of oil-feed is 0.45/h, reactive hydrogen oil body
Product is described relative to Hydrobon catalyst air speed 1.2/h relative to hydrotreating catalyst air speed 0.7/h than being 900
Catalyst in unifining process is Ni-W-Co/Al2O3, obtain narrow fraction naphthene base crude oil.
Mass percent of the described rapeseed oil in described modified vegetable oil is 50%, and described peanut oil is described
Modified vegetable oil in mass percent be 30%, mass percent of the described cotton seed oil in described modified vegetable oil
For 20%, the preparation method of described modified vegetable oil is：First carry out hydrofinishing, the reaction of reactor in unifining process
Pressure is 10MPa, and reaction temperature is 250 DEG C, and the total air speed of oil-feed is 0.6/h, and reaction hydrogen to oil volume ratio is 650, described hydrogenation
Catalyst in subtractive process is Ni-Mo-Co/AL2O3, then carry out atmospheric and vacuum distillation, reduced pressure distillation process be residual voltage 1~
65mmHg, 300~460 DEG C of atmospheric distillate is cut, obtains hydrogenated vegetable oil.Then with the NaOH solution that concentration is 9%, use
Measure as the 4% of improved plant weight of oil, temperature control is at 80 DEG C, and after washing 70min, after oil water separator, entrance is next
Washed in individual reactor, dosage is the 7% of improved plant weight of oil, and temperature control after washing 60min, passes through at 70 DEG C
After oil water separator；Carry out secondary alkali cleaning, use concentration for 8% Na2CO3Solution, dosage are the 4% of improved plant weight of oil,
Temperature control after washing 60min, after oil water separator, is once washed at 75 DEG C into next reactor, is used
Measure as the 10% of improved plant weight of oil, temperature control after washing 70min, after oil water separator, is modified at 70 DEG C
Vegetable oil.
Further, described bleaching earth is the atlapulgite that activity degree is more than 180mmol/kg.
Further, described antioxidant is 2,6-BHT.
Further, described pour-point depressant is T803D (polyalphaolefin).
Further, described matal deactivator is 2- methyl-BTA.
Further, the adsorbent that described anti-light sensitive agent is the mesh of granularity 40, working substance is 99.99%.
Every physical and chemical index is shown in Table 1.
Embodiment 3
The invention provides a kind of high flashover point transformer oil, by narrow fraction naphthene base crude oil, modified vegetable oil, antioxidant, drop
Solidifying agent, anti-light sensitive agent and matal deactivator composition.Percentage by weight of the described narrow fraction naphthene base crude oil in transformer oil
For 80%, percentage by weight of the described modified vegetable oil in transformer oil is 18%, by rapeseed oil, peanut oil, cotton seed oil
Mixed with olive oil.After taking 80% narrow fraction naphthene base crude oil and 18% modified vegetable oil to be stirred 45 minutes at 55 DEG C, 100
Transformer oil percentage by weight is incorporated as at a temperature of DEG C and is 3% carclazyte, while is stirred refined absorption 110min, until inhaling
Reaction enclosure is uniform, and precipitation adds antioxidant additive, pour-point depressant, photosensitizing agents and metal passivation after filter filters 2 times
Agent mixes, and mass percent of the described antioxidant additive in described transformer oil is 0.5%, and described pour-point depressant is in institute
Mass percent in the transformer oil stated is 0.5%, quality hundred of the described anti-light sensitive agent in described transformer oil
Divide than being 0.5%, mass percent of the described matal deactivator in described transformer oil is 0.5%, vacuum pump circulation
Negative pressure of vacuum 0.8Kpa is handled 2 times.
The preparation method of described narrow fraction naphthene base crude oil is：Naphthene base crude oil is squeezed into destilling tower, carries out Atmospheric vacuum steaming
Evaporate, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~350 DEG C of distillate, then carries out hydrofinishing, hydrogenation essence
The reaction pressure of reactor is 15MPa during system, and reaction temperature is 330 DEG C, and the total air speed of oil-feed is 0.55/h, reactive hydrogen oil body
Product is described relative to Hydrobon catalyst air speed 1.2/h relative to hydrotreating catalyst air speed 0.75/h than being 930
Catalyst in unifining process is Ni-W-Co/Al2O3, obtain narrow fraction naphthene base crude oil.
Mass percent of the described rapeseed oil in described modified vegetable oil is 40%, and described peanut oil is described
Modified vegetable oil in mass percent be 20%, mass percent of the described cotton seed oil in described modified vegetable oil
For 20%, mass percent of the described olive oil in described modified vegetable oil is 20%.Described modified vegetable oil
Preparation method is：First carry out hydrofinishing, the reaction pressure of reactor is 7MPa in unifining process, reaction temperature 350
DEG C, the total air speed of oil-feed is 0.7/h, and reaction hydrogen to oil volume ratio is 650, and the catalyst in described unifining process is Ni-Mo-
Co/AL2O3, atmospheric and vacuum distillation is then carried out, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~460 DEG C of normal pressure and evaporates
Divide oil, obtain hydrogenated vegetable oil.With the NaOH solution that concentration is 10%, temperature control after washing 60min, passes through oil at 80 DEG C
After separator, washed into next reactor, dosage is the 6% of improved plant weight of oil, and temperature control is 70
DEG C, after washing 70min, after oil water separator；Carry out secondary alkali cleaning, use concentration for 8% Na2CO3Solution, dosage are
The 4% of improved plant weight of oil, temperature control is at 75 DEG C, after washing 60min, after oil water separator, into next anti-
Answer in kettle and once washed, dosage is the 10% of improved plant weight of oil, and temperature control after washing 70min, passes through at 70 DEG C
After oil water separator, modified vegetable oil is obtained.
Further, described bleaching earth is the atlapulgite that activity degree is more than 180mmol/kg.
Further, described antioxidant is phenolic ester type antioxidant.
Further, described pour-point depressant is T602HB (polymethacrylates).
Further, the adsorbent that described anti-light sensitive agent is the mesh of granularity 40, working substance is 99.99%.
Further, described matal deactivator is BTA (BTA).
Every physical and chemical index is shown in Table 1.
Embodiment 4
The invention provides a kind of high flashover point transformer oil, by narrow fraction naphthene base crude oil, modified vegetable oil, antioxidant, drop
Solidifying agent, anti-light sensitive agent and matal deactivator composition.Percentage by weight of the described narrow fraction naphthene base crude oil in transformer oil
For 72%, percentage by weight of the described modified vegetable oil in transformer oil is 26%, by peanut oil, cotton seed oil and olive oil
Mixing composition.After taking 72% narrow fraction naphthene base crude oil and 26% modified vegetable oil to be stirred 30 minutes at 60 DEG C, in 100 DEG C of temperature
Transformer oil percentage by weight is incorporated as under degree and is 6% carclazyte, while is stirred refined absorption 120min, until absorption is anti-
Should be uniform, precipitation adds antioxidant additive, pour-point depressant, photosensitizing agents and matal deactivator and mixed after filter filters 2 times
Close, mass percent of the described antioxidant additive in described transformer oil is 0.6%, and described pour-point depressant is described
Mass percent in transformer oil is 0.6%, mass percent of the described anti-light sensitive agent in described transformer oil
For 0.4%, mass percent of the described matal deactivator in described transformer oil is 0.4%, vavuum pump circulating vacuum
Negative pressure 0.8KPa is handled 2 times.
The preparation method of described narrow fraction naphthene base crude oil is：Naphthene base crude oil is squeezed into destilling tower, carries out Atmospheric vacuum steaming
Evaporate, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~350 DEG C of distillate, then carries out hydrofinishing, hydrogenation essence
The reaction pressure of reactor is 11MPa during system, and reaction temperature is 330 DEG C, and the total air speed of oil-feed is 0.4/h, reactive hydrogen oil body
Product is described relative to Hydrobon catalyst air speed 1.6/h relative to hydrotreating catalyst air speed 0.75/h than being 860
Catalyst in unifining process is Mo-W/Al2O3, obtain narrow fraction naphthene base crude oil.
Mass percent of the described peanut oil in described modified vegetable oil is 40%, and described cotton seed oil is described
Modified vegetable oil in mass percent be 30%, mass percent of the described olive oil in described modified vegetable oil
For 30%.The preparation method of described modified vegetable oil is：First carry out hydrofinishing, the reaction of reactor in unifining process
Pressure is 11MPa, and reaction temperature is 300 DEG C, and the total air speed of oil-feed is 0.6/h, and reaction hydrogen to oil volume ratio is 600, described hydrogenation
Catalyst in subtractive process is Ni-W/AL2O3, atmospheric and vacuum distillation is then carried out, reduced pressure distillation process is 1~65mmHg of residual voltage,
300~460 DEG C of atmospheric distillate is cut, obtains hydrogenated vegetable oil.Then it is to change with the NaOH solution that concentration is 8%, dosage
Property plant weight of oil 5%, temperature control at 80 DEG C, wash 80min after, after oil water separator, into next reaction
Washed in kettle, dosage is the 8% of improved plant weight of oil, and temperature control is at 70 DEG C, after washing 60min, passes through profit point
After device；Carry out secondary alkali cleaning, use concentration for 8% Na2CO3Solution, dosage are the 5% of improved plant weight of oil, temperature control
System after washing 60min, after oil water separator, is once washed at 75 DEG C into next reactor, and dosage is to change
Property plant weight of oil 8%, temperature control at 70 DEG C, wash 70min after, after oil water separator, obtain modified vegetable oil.
Further, described bleaching earth is the atlapulgite that activity degree is more than 180mmol/kg.
Further, described antioxidant is 2,6-BHT.
Further, described pour-point depressant is T-803B (polyalphaolefin).
Further, described matal deactivator is 2- methyl-BTA.
Further, the adsorbent that described anti-light sensitive agent is the mesh of granularity 40, working substance is 99.99%.
Every physical and chemical index is shown in Table 1.
Every physical and chemical index is shown in Table 1.
Table 1
The present invention is relatively shown in Table 2 with U.S. FR3 plants transformer oil, each physical and chemical performance of traditional transformer oil
Table 2
As can be seen from Table 2 with, the present invention compared with U.S. FR3 plant type transformer oil, there is lower acid number, Ke Yiyou
Effect prevents oil product middle acid substance etching apparatus, the service life of extension device；In addition interfacial tension of the invention, pour point, Jie
Damage and moisture index are also significantly better than FR3.The present invention has higher flash-point and combustion compared with conventional mineral transformer oil
Point, therefore substantially increase security performance；The insulating properties of this product are also significantly better than traditional transformer oil, of the invention in addition
The rotary oxygen bomb time is substantially better than conventional mineral transformer oil, therefore with more preferable Oxidation Stability and longer use longevity
Life.
The beneficial effects of the present invention are：First, compared with traditional transformer oil, this product security performance is splendid,；Secondly,
This product meets U.S.'s ASTM 5222-2008 standards, technological precedence；3rd, this product is superior to national mark on indices
Transformer oil standard accurate and using produced in conventional processes, substantially increases the stability and security of transformer station high-voltage side bus, improves
The service life of transformer oil.
Claims (2)
- A kind of 1. high flashover point transformer oil, it is characterised in that：By base oil, antioxidant, pour-point depressant, anti-light sensitive agent and metallic blunt Agent is formed, and described base oil is made up of narrow fraction naphthene base crude oil and modified vegetable oil, and described narrow fraction naphthene base crude oil exists Percentage by weight in transformer oil is 70%~80%, and percentage by weight of the described modified vegetable oil in transformer oil is 18%~28%, percentage by weight of the described antioxidant in transformer oil is 0.5%~1.0%, and described pour-point depressant exists Percentage by weight in transformer oil is 0.5%~1.0%, percentage by weight of the described anti-light sensitive agent in transformer oil For 0.1%~0.5%, percentage by weight of the described matal deactivator in transformer oil is 0.1%~0.5%, described For the %Cp values of narrow fraction naphthene base crude oil between 42-50, the carbon atom that Cp values refer on alkyl side chain accounts for the total carbon number of whole molecule Percentage；Described modified vegetable oil by the two or more materials in rapeseed oil, peanut oil, cotton seed oil, olive oil mixing, it is described The formula of modified vegetable oil be,Wherein R1、R2、R3The alkyl or alkylene for being 12-23 for carbon number；Described antioxidant is 2,6-di-tert-butylphenol, 2, any in 6-BHT or phenolic ester type antioxidant It is a kind of；Described pour-point depressant is any one in T-803B, T803D or T602HB；Described anti-light sensitive agent is the adsorbent or HE1127 light stabilizers that granularity is 40 mesh, working substance is 99.99%；Described matal deactivator is BTA or 2- methyl-BTA；The preparation method of above-mentioned high flashover point transformer oil is as follows,1) the step of preparing narrow fraction naphthene base crude oil including one；Narrow fraction naphthene base crude oil step is prepared described, first Naphthene base crude oil to be squeezed into destilling tower, carries out atmospheric and vacuum distillation, reduced pressure distillation process is 1~65mmHg of residual voltage, cut 300~ 350 DEG C of distillate, then carries out hydrofinishing, and the reaction pressure of reactor is 8~15MPa in unifining process, reaction Temperature is 280~360 DEG C, and the total air speed of oil-feed is 0.35~0.65/h, and reaction hydrogen to oil volume ratio is 800~950, relative to hydrogenation 0.5~0.85/h of catalyst space velocities is handled, relative to Hydrobon catalyst air speed 0.85-1.95/h, described hydrofinishing During catalyst be Mo-W/Al2O3, or Ni-W-Co/Al2O3, obtain narrow fraction naphthene base crude oil；2) the step of preparing modified vegetable oil including one, it is described the step of preparing modified vegetable oil in, select dish first Seed oil, peanut oil, cotton seed oil, the two or more goods and materials of olive oil are raw material, first carry out hydrofinishing, in unifining process The reaction pressure of reactor is 6~12MPa, and reaction temperature is 200~400 DEG C, and the total air speed of oil-feed is 0.5~1.0/h, reactive hydrogen Oil volume ratio is 600~800, and the catalyst in described unifining process is Ni-W/ Al2O3Or Ni-Mo-Co/ Al2O3, atmospheric and vacuum distillation is then carried out, reduced pressure distillation process is 1~65mmHg of residual voltage, cuts 300~460 DEG C of atmospheric fractions Oil, obtain hydrogenated vegetable oil；Then an alkali cleaning is carried out, uses NaOH solution of the mass percent concentration for 6%-10%, is used Measure and after washing 60-90min, pass through oil water separator at 70-80 DEG C for the 2%-6% of the basic weight of oil of modification, temperature control Afterwards, into once being washed in next reactor, the dosage of water is the 5%-10% of modified basic weight of oil, temperature control At 70-80 DEG C, 60-90min is washed, after oil water separator, carries out secondary alkali cleaning, use the aqueous solution to be carried out for the salt of alkalescence Washing, described alkaline salt is the Na that mass percent concentration is 5%-8%2CO3Solution, dosage are modified basic weight of oil 1%-5%, temperature control at 70-80 DEG C, wash 60-90min after, after oil water separator, into next reactor Middle once to be washed, the dosage of water is the 5%-10% of modified basic weight of oil, and temperature control is at 70-80 DEG C, washing 60- After 90min, after oil water separator, modified vegetable oil is obtained；3) according to percentage by weight weigh narrow fraction naphthene base crude oil, modified vegetable oil, antioxidant, pour-point depressant, anti-light sensitive agent and Matal deactivator, while bleaching earth is weighed, the percentage by weight of described carclazyte is respectively narrow fraction naphthene base crude oil, modified plant Thing oil, antioxidant, pour-point depressant, the gross mass 3%-6% of anti-light sensitive agent and matal deactivator, then in a reactor plus Enter narrow fraction naphthene base crude oil and modified vegetable oil, 50 DEG C of -60 DEG C of stirring 30-60 minutes, added at a temperature of 80 DEG C~100 DEG C white Soil, while the stirring and adsorbing of 90~120min times is carried out, until adsorption reaction is uniform, it is deposited in and is filtered 2~3 times by filter After, add antioxidant additive, pour-point depressant, photosensitizing agents and matal deactivator, vavuum pump negative pressure 0.8KPa, application of vacuum 1 ~3 times；Obtain high flashover point transformer oil.
- 2. the preparation method of high flashover point transformer oil according to claim 1, it is characterised in that：Described bleaching earth is Activity degree is more than 180mmol/kg atlapulgite.
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| CN108060004A (en) * | 2017-12-31 | 2018-05-22 | 安徽凯奥新能源股份有限公司 | A kind of transformer oil of high oxidation stability and preparation method thereof |
| CN112542296B (en) * | 2020-12-04 | 2021-10-29 | 刚和石油(营口)有限公司 | Biodegradable high-ignition-point insulating fluid |
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| CN104774677A (en) * | 2015-04-27 | 2015-07-15 | 江苏铭安电气有限公司 | Preparation method of high-ignition-point transformer oil |
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| CN104774677A (en) * | 2015-04-27 | 2015-07-15 | 江苏铭安电气有限公司 | Preparation method of high-ignition-point transformer oil |
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