CN113881480B - Centrifugal compressor oil additive composition - Google Patents
Centrifugal compressor oil additive composition Download PDFInfo
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- CN113881480B CN113881480B CN202010631005.XA CN202010631005A CN113881480B CN 113881480 B CN113881480 B CN 113881480B CN 202010631005 A CN202010631005 A CN 202010631005A CN 113881480 B CN113881480 B CN 113881480B
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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
- C10M169/04—Mixtures of base-materials and additives
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- 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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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
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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
- 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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- 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
- 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
- C10M2215/224—Imidazoles
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
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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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
Abstract
The invention discloses a centrifugal compressor oil additive composition, which comprises the following components in part by weight: 5-30% of ionic liquid, 10-70% of antioxidant, 2-20% of metal passivator, 2-20% of antirust agent, 2-20% of dispersant, 0.5-5% of antifoaming agent, 0.5-5% of demulsifier and the balance of diluent. The oil product blended by the composition has excellent performances of oxidation resistance, corrosion resistance, emulsification resistance and the like, and meanwhile, the composition has good stability and is convenient and fast to use, and the blended oil product is suitable for the use working condition of a centrifugal compressor system.
Description
Technical Field
The present invention relates to a lubricating oil additive composition, particularly a centrifugal compressor oil additive composition suitable for use in a centrifugal compressor system.
Background
A centrifugal compressor is one of speed type compressors, and a machine for compressing and delivering gas by generating centrifugal force to the gas mainly by means of an impeller rotating at a high speed is an important device in the industrial field. In order to ensure the normal operation of the centrifugal compressor system, besides a well-designed lubricating system, a matched lubricating oil is also required to be selected. Different application conditions slightly differ the performance requirements of centrifugal compressor oil, but the overall requirements of centrifugal compressor oil are as follows:
good thermal oxidation stability. For centrifugal compressor, the local overheat point temperature can reach 150 deg.C, the equipment pressure can reach 50MPa, and the oxidation stability under high temperature and high pressure is the most important performance index of lubricating oil. Amine antioxidants exhibit excellent antioxidant properties under such conditions, and are increasingly used.
Good rust and corrosion resistance. The antirust agent and the metal passivator can protect metal parts of equipment from corrosion caused by moisture, oxides and the like, and prolong the service life of lubricating oil.
Good anti-foaming property and air releasing property. The high speed rotation of the centrifugal compressor causes the lubricating oil to mix with air, which tends to generate foam, affecting the performance of the lubricating oil.
Good anti-emulsifying property. In the centrifugal compressor, lubricating oil is isolated from the air cavity, and the possibility of being polluted by moisture is low.
With the development of science and technology and the expansion of industrial requirements, the large-scale trend of centrifugal compressor equipment is obvious, and the requirements on the performances of oxidation resistance and the like of lubricating oil at high temperature and high pressure are higher and higher, so that a centrifugal compressor oil formula system is designed according to the performance requirements.
Disclosure of Invention
The invention mainly aims to provide a centrifugal compressor oil additive composition to meet the lubricating requirements of a centrifugal compressor system on oxidation resistance, rust prevention, corrosion resistance, foam resistance and the like.
To this end, the invention provides a centrifugal compressor oil additive composition comprising the following components:
5-30% of ionic liquid, 10-70% of antioxidant, 2-20% of metal passivator, 2-20% of antirust agent, 2-20% of dispersant, 0.5-5% of antifoaming agent, 0.5-5% of demulsifier and the balance of diluent;
wherein, the structure of the ionic liquid is as follows:
wherein R is C10-C13An alkane.
The molecular structural formula of the ionic liquid shows that the ionic liquid is thiazole phosphate ionic liquid, and after a nitrogen-sulfur double bond compound and a heterocyclic compound are compounded with an antioxidant, particularly, the compounding mass ratio of the antioxidant to the ionic liquid is 1: after 0.1 to 3 are compounded, the high-temperature antioxidant effect is outstanding, and the service life of the oil product can be effectively prolonged.
The centrifugal compressor oil additive composition provided by the invention is characterized in that the compounding mass ratio of the antioxidant to the ionic liquid is preferably 1: 0.1-3.
The centrifugal compressor oil additive composition of the present invention is characterized in that the antioxidant is preferably at least one of octylbutyldiphenylamine, octylpentyldiphenylamine, dioctyldiphenylamine, dinonyldiphenylamine, nonylbutyldiphenylamine, styrenated diphenylamine, styryloctyldiphenylamine, α -methylstyrene-vinyldiphenylamine, and N, N' -sec-butyl-p-phenylenediamine.
Aiming at the working characteristics of high temperature and high pressure of a centrifugal compressor, the invention preferably selects aniline antioxidants with good heat resistance and less oil sludge generation, and after the aniline antioxidants are compounded with thiazole phosphate ionic liquid in proportion, the high-temperature antioxidant effect is outstanding, and the service life of the oil product is obviously prolonged.
In the centrifugal compressor oil additive composition according to the present invention, the metal deactivator is preferably at least one selected from methylbenzotriazole, N ' -dialkylaminomethylenephotriazole, N ' -bis (2-ethylhexyl) -methyl-1H-benzotriazole-1-methylamine, 2, 5-bis (alkyldithio) 3, 4-thiadiazole, 2-mercaptobenzothiazole, and N, N ' -bis (salicylidene) propylenediamine.
The metal passivator can inhibit the catalytic oxidation of metals and compounds thereof on lubricating oil by inhibiting the activity of the metals, and has remarkable passivation effect.
The centrifugal compressor oil additive composition is characterized in that the antirust agent is preferably at least one of barium dinonylnaphthalenesulfonate, nonylphenoxy acetic acid, alkenyl succinic acid, phosphate ester, sorbitol monooleate, N' -bis (phenylpropotriazolylmethylene) laurylamine and 2-aminoethyl heptadecenyl imidazoline.
The antirust agent has solubilization on water and polar substances, forms a protective film on metal, and effectively replaces or removes water molecules on the surface of the metal.
In the centrifugal compressor oil additive composition according to the present invention, the dispersant is preferably at least one of polyisobutylene succinimide, chlorine-free succinimide, and polyisobutylene succinate ester.
The dispersing agent has good high-temperature stability, is suitable for the high-temperature and high-pressure working condition of a centrifugal compressor, has dispersing and solubilizing effects, and can effectively decompose the generated oil sludge.
In the centrifugal compressor oil additive composition according to the present invention, the antifoaming agent is preferably at least one of dimethylsilicone oil, polyacrylate, and polymethacrylate.
The centrifugal compressor oil additive composition of the present invention is preferably a composite antifoaming agent.
The centrifugal compressor oil additive composition of the invention is characterized in that the demulsifier is preferably at least one of a condensate of alkylphenol and ethylene oxide, a condensate of fatty alcohol and ethylene oxide, a condensate of amine and ethylene oxide, and oil-soluble polyether.
The centrifugal compressor oil additive composition of the present invention, wherein the diluent oil is preferably an inert neutral oil.
The invention has the beneficial effects that:
the oil product blended by the centrifugal compressor oil additive composition has excellent performances of oxidation resistance, corrosion resistance, emulsification resistance and the like, and meanwhile, the composition has good stability and is convenient and fast to use, and the blended oil product is suitable for the use working condition of a centrifugal compressor system.
Detailed Description
The following examples illustrate the invention in detail: the present example is carried out on the premise of the technical scheme of the present invention, and detailed embodiments and processes are given, but the scope of the present invention is not limited to the following examples, and the experimental methods without specific conditions noted in the following examples are generally performed according to conventional conditions.
All ranges disclosed herein are inclusive of the endpoints and independently combinable. The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values.
The technical scheme of the invention can be specifically expressed as that the centrifugal compressor oil additive composition comprises the following components: based on the composition, the composition comprises 5-30% of ionic liquid by mass, 10-70% of antioxidant by mass, 2-20% of metal passivator by mass, 2-20% of antirust agent by mass, 2-20% of dispersing agent by mass, 0.5-5% of antifoaming agent by mass, 0.5-5% of demulsifier by mass and the balance of diluent. Wherein the compounding mass ratio of the antioxidant to the ionic liquid is 1: 0.1-3.
Wherein, the structure of the ionic liquid is as follows:
r is C10-C13。
The ionic liquid is thiazole phosphate ionic liquid, and after a nitrogen-sulfur double-bond compound and a heterocyclic compound are compounded with an antioxidant in proportion, the high-temperature antioxidant effect is remarkable, and the service life of an oil product can be effectively prolonged.
Wherein the antioxidant is at least one of octyl butyl diphenylamine, octyl amyl diphenylamine, dioctyl diphenylamine, dinonyl diphenylamine, nonyl butyl diphenylamine, styrenated diphenylamine, styryl octyl diphenylamine, alpha-methyl styryl diphenylamine and N, N' -sec-butyl-p-phenylenediamine.
Aiming at the working characteristics of high temperature and high pressure of a centrifugal compressor, the invention preferably selects aniline antioxidants with good heat resistance and less oil sludge generation, and after the aniline antioxidants and thiazole phosphate ionic liquid are compounded in proportion, the high-temperature antioxidant effect is outstanding, and the service life of the oil product is obviously prolonged.
Wherein the metal passivator is at least one of methylbenzotriazole, N ' -dialkylaminomethylenephotriazole, N ' -bis (2-ethylhexyl) -methyl-1H-benzenetriazole-1-methylamine, 2, 5-bis (alkyldithio) 3, 4-thiadiazole, 2-mercaptobenzothiazole and N, N ' -bis (salicylidene) propylenediamine.
The metal passivator can inhibit the catalytic oxidation of metals and compounds thereof on lubricating oil by inhibiting the activity of the metals, and has obvious passivation effect.
Wherein the rust inhibitor is at least one of barium dinonylnaphthalenesulfonate, nonylphenoxy acetic acid, alkenyl succinic acid, phosphate, sorbitol monooleate, N' -bis (benzotriazole methylene) laurylamine and 2-aminoethyl heptadecenyl imidazoline.
The antirust agent has solubilization on water and polar substances, forms a protective film on metal, and effectively replaces or removes water molecules on the surface of the metal.
Wherein the dispersant is at least one of polyisobutylene succinimide, chlorine-free succinimide and polyisobutylene succinate.
The dispersing agent has good high-temperature stability, is suitable for the working conditions of high temperature and high pressure of a centrifugal compressor, has dispersing and solubilizing effects, and can effectively decompose the generated oil sludge.
Wherein the anti-foaming agent is at least one of simethicone, polyacrylate, polymethacrylate and composite anti-foaming agent.
The demulsifier is at least one of a condensate of alkylphenol and ethylene oxide, a condensate of fatty alcohol and ethylene oxide, a condensate of amine and ethylene oxide and oil-soluble polyether.
Wherein the diluent oil is inert neutral oil.
The technical solution of the present invention is explained in detail by the following specific examples.
Example 1
The components and their contents of the centrifugal compressor oil additive composition provided in this example are shown in table 1. The additive composition was obtained by mixing the components shown in table 1 uniformly.
TABLE 1
| Name (R) | Mass% |
| Ionic liquids | 5 |
| Octyl butyl diphenylamine | 30 |
| Methyl benzene triazole | 10 |
| Barium dinonyl naphthalene sulfonate | 10 |
| Polyisobutylene succinimide | 10 |
| Polyacrylate | 2 |
| Condensate of alkyl phenol and ethylene oxide | 2 |
| Neutral oil 4cSt | 31 |
The specific structure of the ionic liquid in table 1 is:
wherein R is C10Linear alkyl group of (1).
Example 2
The components and their contents of the centrifugal compressor oil additive composition provided in this example are shown in table 2. The additive composition was obtained by mixing the components shown in table 2.
TABLE 2
The specific structure of the ionic liquid in table 2 is:
wherein R is C12Linear alkyl group of (1).
Example 3
The components and their contents of the centrifugal compressor oil additive composition provided in this example are shown in table 3. The additive composition was obtained by mixing the components shown in table 3 uniformly.
TABLE 3
The specific structure of the ionic liquid in table 3 is:
wherein R is C11Linear alkyl group of (1).
The components of the composite antifoaming agent in table 3 and the mass contents of the components are as follows: 50% of dimethyl silicone oil and 50% of methacrylate.
Example 4
The components and their contents of the centrifugal compressor oil additive composition provided in this example are shown in table 4. The additive composition was obtained by mixing the components shown in table 4 uniformly.
TABLE 4
| Name (R) | Mass% |
| Ionic liquids | 10 |
| N, N' -sec-butyl-p-phenylenediamine | 70 |
| N, N' -bis (salicylidene) propanediamine | 2 |
| 2-aminoethyl heptadecenyl imidazoline | 2 |
| Polyisobutylene succinimide | 2 |
| Composite anti-foaming agent | 1 |
| Oil solubleNeutral polyethers | 1 |
| Neutral oil 6cSt | 12 |
The specific structure of the ionic liquid in table 4 is:
wherein R is C13Linear alkyl group of (1).
The components and the content of each component of the composite antifoaming agent in table 4 are as follows: 50% of dimethyl silicone oil and 50% of methacrylate.
Comparative example 1
The components and their contents of the centrifugal compressor oil additive composition provided by this comparative example are shown in table 5. The additive composition was obtained by mixing the components shown in table 5 uniformly. The difference from the example 1 is that the ratio of the antioxidant to the ionic liquid is 1: 0.05.
TABLE 5
The specific structure of the ionic liquid in table 5 is:
wherein R is C10Linear alkyl group of (1).
Comparative example 2
The components and their amounts of the centrifugal compressor oil additive composition provided by this comparative example are shown in table 6. The additive composition was obtained by mixing the components shown in table 6 uniformly. The difference from example 1 is that the antioxidant is 2, 6-di-tert-butyl-p-cresol.
TABLE 6
| Name(s) | Mass% |
| Ionic liquids | 5 |
| 2, 6-di-tert-butyl-p-cresol | 30 |
| Methyl benzene triazole | 10 |
| Barium dinonyl naphthalene sulfonate | 10 |
| Polyisobutylene succinimide | 10 |
| Polyacrylate | 2 |
| Condensate of alkyl phenol and ethylene oxide | 2 |
| Neutral oil 4cSt | 31 |
The specific structure of the ionic liquid in table 6 is:
wherein R is C10Linear alkyl group of (1).
Example 5
The results of the oil testing before the group II base oil was added to the additive composition of the present invention are shown in Table 7.
TABLE 7
| Item | Group II base oils | Test method |
| Viscosity grade | 46 | GB/T 3141 |
| Kinematic viscosity (40 ℃ C.)/(mm)2/s) | 45.8 | GB/T 265 |
| Viscosity index | 110 | GB/T 2541 |
| Appearance of the product | Is transparent | Visual inspection of |
| Pour point/. degree.C | -21 | GB/T 3535 |
| Flash point (open)/°c | 245 | GB/T 3536 |
| Water content/%) | Trace of | GB/T 260 |
| Acid value/(mgKOH/g) | 0.01 | GB/T 4945 |
| Rotating oxygen bomb/min | 49 | SH/T 0193 |
After the centrifugal compressor oil additive compositions prepared in examples 1, 2, 3 and 4 were respectively added to the above group II base oil and blended with the group II base oil in an amount of 1% by mass, the oil products were tested as follows:
TABLE 8
After the centrifugal compressor oil additive compositions prepared in comparative examples 1 and 2 are respectively added into the II base oil and blended with the II base oil according to the adding amount of 1 percent by mass, the key performance of the oil product is compared with that of example 1 as follows:
TABLE 9
As can be seen from the data shown in Table 8, the rotary oxygen bombs of the oil blended by the centrifugal compressor oil additive compositions prepared in the embodiments 1, 2, 3 and 4 of the invention all reach more than 1600min, and the oil blended by the oil additive compositions has excellent performances of oxidation resistance, corrosion resistance, emulsification resistance and the like, and meanwhile, the oil blended by the oil additive compositions is good in stability and convenient to use, and the blended oil is suitable for the use condition of a centrifugal compressor system.
As can be seen from the comparison of the data shown in Table 9, the oil blended with the centrifugal compressor oil additive compositions prepared in comparative examples 1 and 2 has the key indexes of rotating oxygen bomb time of 526min and 209min, and the oxidation resistance is obviously lower than that of example 1.
From the above, the oil blended by the centrifugal compressor oil additive composition has excellent performances of oxidation resistance, corrosion resistance, emulsification resistance and the like, and meanwhile, the composition has good stability and convenient use, and the blended oil is suitable for the use working condition of a centrifugal compressor system.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (3)
1. A centrifugal compressor oil additive composition characterized by comprising the following components:
5-30% of ionic liquid, 10-70% of antioxidant, 2-20% of metal passivator, 2-20% of antirust agent, 2-20% of dispersant, 0.5-5% of antifoaming agent, 0.5-5% of demulsifier and the balance of diluent;
wherein the structure of the ionic liquid is as follows:
wherein R is C10-C13An alkane;
the antioxidant is at least one of octyl butyl diphenylamine, octyl pentyl diphenylamine, dioctyl diphenylamine, dinonyl diphenylamine, nonyl butyl diphenylamine, styrenated diphenylamine, styryl octyl diphenylamine, alpha-methyl styryl diphenylamine and N, N' -sec-butyl-p-phenylenediamine;
the metal passivator is at least one of methylbenzotriazole, N ' -dialkylaminomethylenephotriazole, N ' -bis (2-ethylhexyl) -methyl-1H-benzenetriazole-1-methylamine, 2, 5-bis (alkyl dithio) 3, 4-thiadiazole, 2-mercaptobenzothiazole and N, N ' -bis (salicylidene) propylenediamine;
the antirust agent is at least one of barium dinonylnaphthalenesulfonate, nonyl phenoxyacetic acid, alkenyl succinic acid, phosphate, sorbitol monooleate and 2-aminoethyl heptadecenyl imidazoline;
the dispersant is at least one of polyisobutylene succinimide, chlorine-free succinimide and polyisobutylene succinate;
the anti-foaming agent is at least one of simethicone, polyacrylate and polymethacrylate;
the demulsifier is at least one of a condensate of alkylphenol and ethylene oxide, a condensate of fatty alcohol and ethylene oxide, a condensate of amine and ethylene oxide and oil-soluble polyether;
the diluent is inert neutral oil.
2. The centrifugal compressor oil additive composition as described in claim 1, wherein the compounding mass ratio of the antioxidant to the ionic liquid is 1: 0.1-3.
3. The centrifugal compressor oil additive composition of claim 1, wherein the anti-foaming agent is a complex anti-foaming agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010631005.XA CN113881480B (en) | 2020-07-03 | 2020-07-03 | Centrifugal compressor oil additive composition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010631005.XA CN113881480B (en) | 2020-07-03 | 2020-07-03 | Centrifugal compressor oil additive composition |
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