CN108893182B - Non-cycloalkyl high-overload transformer oil base oil and preparation method thereof - Google Patents
Non-cycloalkyl high-overload transformer oil base oil and preparation method thereof Download PDFInfo
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- CN108893182B CN108893182B CN201810891342.5A CN201810891342A CN108893182B CN 108893182 B CN108893182 B CN 108893182B CN 201810891342 A CN201810891342 A CN 201810891342A CN 108893182 B CN108893182 B CN 108893182B
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- oil
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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
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
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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
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/017—Specific gravity or density
-
- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
-
- 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
Abstract
The invention provides non-cycloalkyl high-overload transformer oil base oil and a preparation method thereof, wherein the preparation method of the non-cycloalkyl high-overload transformer oil base oil comprises the following steps: and fractionating the non-naphthenic base oil to ensure that the initial boiling point of the non-naphthenic base oil is 290 +/-5 ℃ and the final boiling point of the non-naphthenic base oil is 420 +/-5 ℃ to obtain the non-naphthenic high-overload transformer oil base oil. The invention provides non-cycloalkyl high-overload transformer oil base oil and a preparation method thereof, wherein the non-cycloalkyl high-overload transformer oil base oil is subjected to fractional distillation and cutting to remove light components and heavy components, so that base oil with an initial boiling point of 290 +/-5 ℃ and an end boiling point of 420 +/-5 ℃ is obtained, and the base oil has the advantages of high closed flash point, small kinematic viscosity, low density and the like.
Description
Technical Field
The invention belongs to the field of chemical industry, and relates to non-cycloalkyl high-overload transformer oil base oil and a preparation method thereof.
Background
The high overload transformer technology is a new transformer technology which is developed by national grids in response to rural power grid power utilization concentration. The technology also has requirements on insulating liquid, and the regulation that the insulating liquid of the transformer conforms to the regulation of GB 2536, the flash point and the ignition point are higher than the insulating and voltage-resistant grade of the transformer and the requirement of F-grade insulating material is met, namely the temperature is more than or equal to 175 ℃. The traditional mineral insulating oil has a low closed flash point which is generally about 140 ℃, and can not meet the requirements of high overload distribution transformers. Because of the influence of the original base oil production process, the industry has an inherent concept, the naphthenic base oil is more suitable for preparing high-quality transformer oil, and the existing high-overload transformer oil on the market is prepared from the naphthenic base oil. For example, chinese patent CN 106635246a discloses a high overload transformer oil and its preparation process, the high overload transformer oil is prepared by natural ester insulating oil and mineral insulating oil according to the volume percentage of 10% -57% and 60% -43%, the closed flash point of the oil prepared by using the base oil is more than or equal to 155 ℃. However, this temperature still cannot effectively ensure stable operation of the power grid in case of high overload. The base oil of the medium and petrochemical transformer oil is non-naphthenic base oil, has a flash point higher than that of naphthenic base oil, but does not meet the requirement of being more than or equal to 175 ℃.
Disclosure of Invention
The invention aims to provide non-cycloalkyl high-overload transformer oil base oil and a preparation method thereof, and aims to solve the problem that the transformer oil base oil in the prior art is low in closed flash point.
In order to solve the technical problem, the invention provides a preparation method of non-cycloalkyl high-overload transformer oil base oil, which comprises the following steps: and fractionating the non-naphthenic base oil to ensure that the initial boiling point of the non-naphthenic base oil is 290 +/-5 ℃ and the final boiling point of the non-naphthenic base oil is 420 +/-5 ℃ to obtain the transformer oil base oil.
Further, the preparation method specifically comprises the following steps:
s1: fractionating the non-cycloalkyl base oil by adopting a fractionation process, controlling the fractionation temperature to be 290 +/-5 ℃, removing distillate oil at the time, and keeping tail oil fraction;
s2: and fractionating the tail oil fraction in the S1, controlling the fractionation temperature to be 420 +/-5 ℃, and taking the distillate oil at the time to obtain the transformer oil base oil.
Further, the preparation method specifically comprises the following steps:
s1: fractionating the non-cycloalkyl base oil by adopting a fractionation process, controlling the fractionation temperature to be 420 +/-5 ℃, and taking distillate oil at the time;
s2: and fractionating the distillate oil in the S1, controlling the fractionation temperature to be 290 +/-5 ℃, removing the distillate oil at the moment, and reserving the tail oil fraction to obtain the transformer oil base oil.
Further, the non-cycloalkyl base oil is selected from medium petrochemical HVI II2 base oils.
Further, the distillation range of the non-naphthenic base oil is 256-504 ℃.
Further, in the non-naphthenic base oil, the component with the distillation range of 256-290 +/-5 ℃ accounts for 17.5 percent by mass percent; the distillation range is between 420 +/-5 ℃ and 504 ℃, and the proportion of the components is 15 percent.
Further, the closed flash point of the prepared non-cycloalkyl high overload transformer oil base oil is more than or equal to 175 ℃, and the kinematic viscosity of the non-cycloalkyl high overload transformer oil base oil is less than or equal to 10mm at 40 DEG C2(s) density is less than or equal to 840kg/m3。
The invention also provides non-cycloalkyl high-overload transformer oil base oil which is prepared by the preparation method of the non-cycloalkyl high-overload transformer oil base oil.
Compared with the prior art, the invention provides the non-cycloalkyl high-overload transformer oil base oil and the preparation method thereof, the non-cycloalkyl high-overload transformer oil base oil is subjected to fractional distillation and cutting to remove light components and heavy components, so that the base oil with the initial boiling point of 290 +/-5 ℃ and the final boiling point of 420 +/-5 ℃ is obtained, and the base oil has the advantages of high closed flash point, small kinematic viscosity, low density and the like.
Detailed Description
The non-cycloalkyl high-overload transformer oil base oil and the preparation method thereof provided by the invention are further described in detail by combining specific examples. Advantages and features of the present invention will become apparent from the following description and from the claims.
The invention provides a preparation method of non-cycloalkyl high-overload transformer oil base oil, which comprises the following steps: and fractionating the non-cycloalkyl base oil to ensure that the initial boiling point of the non-cycloalkyl high-overload non-cycloalkyl base oil is 290 +/-5 ℃ and the final boiling point is 420 +/-5 ℃ to obtain the transformer oil base oil. Compared with the prior artThe adopted naphthenic base oil is different, in the scheme of the invention, non-naphthenic base oil is selected to prepare the transformer oil, so that the closed flash point is higher, and the base oil is cut by adopting a fractionation process, light components with the distillation range below 290 +/-5 ℃ and heavy components with the distillation range above 420 +/-5 ℃ are cut, so that the base oil with the initial distillation point of 290 +/-5 ℃ and the final distillation point of 420 +/-5 ℃ is obtained. Preferably, the closed flash point of the non-cycloalkyl high overload transformer oil base oil prepared by the scheme of the invention is more than or equal to 175 ℃, and the kinematic viscosity of the non-cycloalkyl high overload transformer oil base oil is less than or equal to 10mm at 40 DEG C2(s) density is less than or equal to 840kg/m3。
In an embodiment of the present invention, the preparation method specifically may include: s1: fractionating the non-cycloalkyl base oil by adopting a fractionation process, controlling the fractionation temperature to be 290 +/-5 ℃, removing distillate oil at the time, and keeping tail oil fraction; s2: and fractionating the tail oil fraction in the S1, controlling the fractionation temperature to be 420 +/-5 ℃, and taking the distillate oil at the time to obtain the transformer oil base oil.
It will be understood by those skilled in the art that the above-mentioned sequence of steps between S1 and S2 may be reversed, i.e. the preparation method of the transformer oil base oil of the present invention may also be: s1: fractionating the non-cycloalkyl base oil by adopting a fractionation process, controlling the fractionation temperature to be 420 +/-5 ℃, and taking distillate oil at the time; s2: and fractionating the distillate oil in the S1, controlling the fractionation temperature to be 290 +/-5 ℃, removing the distillate oil at the moment, and reserving the tail oil fraction to obtain the transformer oil base oil.
Wherein, the non-cycloalkyl base oil used in the preparation method of the present invention may be selected from medium petrochemical HVI II2 base oil. The distillation range of the non-naphthenic base oil is 256-504 ℃. And in the non-cycloalkyl base oil, the light component with the distillation range of 256-290 +/-5 ℃ accounts for 17.5 percent in percentage by mass; the proportion of heavy components with the distillation range of 420 +/-5-504 ℃ is 15%. By the above preparation method, the light component and the heavy component are cut off after fractionation.
The invention also provides non-cycloalkyl high-overload transformer oil base oil which is prepared by the preparation method.
In conclusion, the invention provides the non-cycloalkyl high-overload transformer oil base oil and the preparation method thereof, the non-cycloalkyl high-overload transformer oil base oil is subjected to fractional distillation and cutting to remove light components and heavy components, so that the base oil with the initial boiling point of 90 +/-5 ℃ and the final boiling point of 420 +/-5 ℃ is obtained, the base oil has the advantages of high closed flash point, small kinematic viscosity, low density and the like, and the prepared transformer oil can effectively meet the work under the overload capacity condition of a high-overload transformer and reduce transformer faults.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (8)
1. A preparation method of non-cycloalkyl high-overload transformer oil base oil is characterized by comprising the following steps: and fractionating the non-naphthenic base oil to ensure that the initial boiling point of the non-naphthenic base oil is 290 +/-5 ℃ and the final boiling point of the non-naphthenic base oil is 420 +/-5 ℃ to obtain the transformer oil base oil.
2. The preparation method of the non-cycloalkyl high-overload transformer oil base oil according to claim 1, wherein the preparation method specifically comprises the following steps:
s1: fractionating the non-cycloalkyl base oil by adopting a fractionation process, controlling the fractionation temperature to be 290 +/-5 ℃, removing distillate oil at the time, and keeping tail oil fraction;
s2: and fractionating the tail oil fraction in the S1, controlling the fractionation temperature to be 420 +/-5 ℃, and taking the distillate oil at the time to obtain the transformer oil base oil.
3. The preparation method of the non-cycloalkyl high-overload transformer oil base oil according to claim 1, wherein the preparation method specifically comprises the following steps:
s1: fractionating the non-cycloalkyl base oil by adopting a fractionation process, controlling the fractionation temperature to be 420 +/-5 ℃, and taking distillate oil at the time;
s2: and fractionating the distillate oil in the S1, controlling the fractionation temperature to be 290 +/-5 ℃, removing the distillate oil at the moment, and reserving the tail oil fraction to obtain the transformer oil base oil.
4. The method for preparing the non-cycloalkyl high-overload transformer oil base oil according to claim 1, wherein the non-cycloalkyl base oil is selected from medium petrochemical HVI II2 base oil.
5. The method for preparing the non-cycloalkyl high-overload transformer oil base oil according to claim 4, wherein the distillation range of the non-cycloalkyl base oil is 256-504 ℃.
6. The method for preparing the non-naphthenic base oil with high overload of transformer oil as claimed in claim 5, wherein the non-naphthenic base oil comprises 17.5 percent of components with the distillation range of 256-290 +/-5 ℃ in percentage by mass; the distillation range is between 420 +/-5 ℃ and 504 ℃, and the proportion of the components is 15 percent.
7. The method for preparing the non-cycloalkyl high-overload transformer oil base oil according to claim 1, wherein the prepared non-cycloalkyl high-overload transformer oil base oil has a closed flash point of not less than 175 ℃ and a kinematic viscosity of not more than 10mm at 40 ℃2(s) density is less than or equal to 840kg/m3。
8. The non-cycloalkyl high overload transformer oil base oil is characterized by being prepared by the preparation method of the non-cycloalkyl high overload transformer oil base oil according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810891342.5A CN108893182B (en) | 2018-08-07 | 2018-08-07 | Non-cycloalkyl high-overload transformer oil base oil and preparation method thereof |
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| CN201810891342.5A CN108893182B (en) | 2018-08-07 | 2018-08-07 | Non-cycloalkyl high-overload transformer oil base oil and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108893182A CN108893182A (en) | 2018-11-27 |
| CN108893182B true CN108893182B (en) | 2021-07-09 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018666A (en) * | 1975-07-28 | 1977-04-19 | Exxon Research And Engineering Company | Process for producing low pour point transformer oils from paraffinic crudes |
| CN101307271A (en) * | 2007-05-18 | 2008-11-19 | 中国石油化工股份有限公司 | Recovering and regenerating method for waste lubrication oil |
| CN101419852A (en) * | 2007-10-26 | 2009-04-29 | Sk能源株式会社 | Electric insulation oil composition with improved hydrogen sucking function |
| RU2373265C1 (en) * | 2008-05-05 | 2009-11-20 | Общество с ограниченной ответственностью "ЛУКОЙЛ-Волгограднефтепереработка" (ООО "ЛУКОЙЛ-Волгограднефтепереработка") | Transformer oil |
| CN101717685A (en) * | 2009-12-10 | 2010-06-02 | 江苏高科石化股份有限公司 | Method for producing narrow distilling range and low viscosity insulating oil |
| CN105593350A (en) * | 2013-09-30 | 2016-05-18 | 国际壳牌研究有限公司 | Fischer-tropsch derived gas oil fraction |
| CN105861119A (en) * | 2016-04-07 | 2016-08-17 | 上海中孚特种油品有限公司 | High-flash-point low-condensation-point transformer oil and preparation method thereof |
| CN106635246A (en) * | 2016-12-12 | 2017-05-10 | 国网河南省电力公司电力科学研究院 | High-overload transformer oil and preparation process thereof |
| CN107446674A (en) * | 2017-08-08 | 2017-12-08 | 中国石油化工股份有限公司 | Transformer oil composition for converter power transformer |
-
2018
- 2018-08-07 CN CN201810891342.5A patent/CN108893182B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018666A (en) * | 1975-07-28 | 1977-04-19 | Exxon Research And Engineering Company | Process for producing low pour point transformer oils from paraffinic crudes |
| CN101307271A (en) * | 2007-05-18 | 2008-11-19 | 中国石油化工股份有限公司 | Recovering and regenerating method for waste lubrication oil |
| CN101419852A (en) * | 2007-10-26 | 2009-04-29 | Sk能源株式会社 | Electric insulation oil composition with improved hydrogen sucking function |
| RU2373265C1 (en) * | 2008-05-05 | 2009-11-20 | Общество с ограниченной ответственностью "ЛУКОЙЛ-Волгограднефтепереработка" (ООО "ЛУКОЙЛ-Волгограднефтепереработка") | Transformer oil |
| CN101717685A (en) * | 2009-12-10 | 2010-06-02 | 江苏高科石化股份有限公司 | Method for producing narrow distilling range and low viscosity insulating oil |
| CN105593350A (en) * | 2013-09-30 | 2016-05-18 | 国际壳牌研究有限公司 | Fischer-tropsch derived gas oil fraction |
| CN105861119A (en) * | 2016-04-07 | 2016-08-17 | 上海中孚特种油品有限公司 | High-flash-point low-condensation-point transformer oil and preparation method thereof |
| CN106635246A (en) * | 2016-12-12 | 2017-05-10 | 国网河南省电力公司电力科学研究院 | High-overload transformer oil and preparation process thereof |
| CN107446674A (en) * | 2017-08-08 | 2017-12-08 | 中国石油化工股份有限公司 | Transformer oil composition for converter power transformer |
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| CN108893182A (en) | 2018-11-27 |
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