CN113088368B - Air compressor oil composition and preparation method thereof - Google Patents

Air compressor oil composition and preparation method thereof Download PDF

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Publication number
CN113088368B
CN113088368B CN202110430257.0A CN202110430257A CN113088368B CN 113088368 B CN113088368 B CN 113088368B CN 202110430257 A CN202110430257 A CN 202110430257A CN 113088368 B CN113088368 B CN 113088368B
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air compressor
oil composition
base oil
antioxidant
compressor oil
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CN113088368A (en
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李姝�
吴旭东
李尚青
龙胜前
熊瑶
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China Petroleum and Chemical Corp
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China Petroleum and Chemical Corp
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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
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of 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
    • 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
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04—Well-defined cycloaliphatic compounds
    • C10M2203/045—Well-defined cycloaliphatic compounds used as base material
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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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • 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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    • 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
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
    • 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
    • C10M2207/283—Esters of polyhydroxy compounds
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
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    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2215/065—Phenyl-Naphthyl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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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
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/041—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds involving a condensation reaction
    • 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
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
    • 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
    • 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
    • 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
    • C10M2223/041—Triaryl phosphates
    • 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

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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention relates to the technical field of lubricating oil, in particular to an air compressor oil composition and a preparation method thereof. The preparation raw materials of the air compressor oil composition comprise: 80-90 wt% of coal-made base oil; 5wt% -10 wt% of naphthenic base oil; 1-3 wt% of antioxidant; 0.05wt% -0.5 wt% of metal deactivator; 0.05wt% -0.5 wt% of antirust agent; 0.1 to 1 weight percent of pour point depressant; 0.05wt% -0.5 wt% of antiwear agent; 0.01-0.05 wt% of anti-emulsifier; 0.01-0.05 wt% of antifoaming agent; the sum of the dosage of the components is 100 percent. The components have synergistic effect, and the finally obtained air compressor oil composition has excellent oxidation stability and long service life and meets the requirements of oil for an air compressor system.

Description

Air compressor oil composition and preparation method thereof
Technical Field
The invention relates to the technical field of lubricating oil, in particular to an air compressor oil composition and a preparation method thereof.
Background
The air compressor is a general machine for providing conveying power by compressing air, and is widely applied to various fields of mines, chemical industry, machinery, food and the like. The most widely used compressor types are screw, piston and centrifugal.
Because the screw compressor oil is harsh in use condition and easy to oxidize and deteriorate in the use process, the air compressor is used as a general machine and is high in reliability and low in maintenance cost, so that the used oil product is required to have a long service life so as to prolong the oil change period. At present, the synthetic screw air compressor oil prepared by using PAO, synthetic ester and the like as base oil has obvious performance advantages compared with mineral products, but has higher selling price. Although the use of conventional hydrogenated base oils can reduce product costs, they typically only achieve a useful life of about 4000 hours. Therefore, it is desirable to develop an air compressor oil composition having excellent oxidation stability and long service life, and at a low cost.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide an air compressor oil composition and a preparation method thereof, wherein the air compressor oil composition provided by the present invention has excellent oxidation stability and long service life.
The invention provides an air compressor oil composition which is prepared from the following raw materials:
Figure BDA0003031110020000011
Figure BDA0003031110020000021
the sum of the dosage of the components is 100 percent.
Preferably, the kinematic viscosity of the coal-based base oil at 40 ℃ is 15-90 mm 2 /s。
Preferably, the kinematic viscosity of the naphthenic base oil at 40 ℃ is 20-50 mm 2 /s。
Preferably, the antioxidant comprises one or more of amine antioxidant and phenolic antioxidant;
the metal deactivator comprises one or more of benzotriazole derivatives and thiadiazole derivatives.
Preferably, the antioxidant comprises one or more of antioxidant T531, dioctyl diphenylamine, alkyl diphenylamine and antioxidant T501;
the metal deactivator comprises one or more of T551, irgamet39 and T561.
Preferably, the antirust agent comprises one or more of an organic carboxylic acid antirust agent, an organic carboxylate antirust agent, a sulfonate antirust agent and a heterocyclic compound antirust agent;
the pour point depressant includes one of alkyl naphthalene, polyesters, and polyolefins.
Preferably, the antirust agent comprises one or more of dodecenylsuccinic acid, sodium sebacate, neutral dinonylbarium naphthalene sulfonate and benzotriazole.
The pour point depressant comprises one of T801, polymethacrylate and T803A.
Preferably, the antiwear agent comprises one or more of a sulfur-containing antiwear agent and a phosphorus-containing antiwear agent;
the demulsifier comprises one of nonionic demulsifiers;
the anti-foaming agent comprises one of a silicon type anti-foaming agent, a non-silicon type anti-foaming agent and a compound type anti-foaming agent.
Preferably, the antiwear agent comprises sulfurized isobutylene and/or tricresyl phosphate;
the anti-emulsifier comprises a condensate of amine and ethylene oxide or glycol ester;
the antifoaming agent comprises one of T901, T911 and T921.
The invention also provides a preparation method of the air compressor oil composition, which comprises the following steps:
a) Dehydrating the coal-made base oil and the naphthenic base oil;
b) Stirring and mixing the dehydrated base oil obtained in the step A), an antioxidant, a metal deactivator, an antirust agent, a pour point depressant, an antiwear agent, an anti-emulsifier and an anti-foaming agent to obtain the air compressor oil composition.
The invention provides an air compressor oil composition which is prepared from the following raw materials: 80-90 wt% of coal-made base oil; 5-10 wt% of naphthenic base oil; 1-3 wt% of antioxidant; 0.05wt% -0.5 wt% of metal deactivator; 0.05wt% -0.5 wt% of antirust agent; 0.1 to 1 weight percent of pour point depressant; 0.05wt% -0.5 wt% of antiwear agent; 0.01-0.05 wt% of anti-emulsifier; 0.01-0.05 wt% of antifoaming agent; the sum of the dosage of the components is 100 percent. In the air compressor oil composition provided by the invention, all components have synergistic effect, and the finally obtained air compressor oil composition has excellent oxidation stability, long service life, higher viscosity index, lower pour point, better wear resistance and lower cost, and completely meets the requirements of oil for an air compressor system.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below with reference to embodiments of the present invention, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides an air compressor oil composition which is prepared from the following raw materials:
Figure BDA0003031110020000031
the sum of the dosage of the components is 100 percent.
The preparation raw material of the air compressor oil composition provided by the invention comprises coal base oil. In certain embodiments of the invention, the coal base oil is present in an amount of 85.62wt% or 89.41wt%. In certain embodiments of the invention, the kinematic viscosity of the coal-based base oil is 15 to 90mm at 40 ℃ 2 And s. In certain embodiments of the invention, the coal base oil comprises coal base oil No. 6 and/or coal base oil No. 10. In certain embodiments, the mass ratio of the No. 6 coal base oil to the No. 10 coal base oil is 40:45.62. the source of the coal-based base oil is not particularly limited, and the coal-based base oil may be generally commercially available.
The preparation raw material of the air compressor oil composition also comprises naphthenic base oil. In certain embodiments of the present invention, the naphthenic base oil is present in an amount of 10wt% or 5wt%. In certain embodiments of the present invention, the naphthenic base oil has a kinematic viscosity at 40 ℃ of 20 to 50mm 2 And(s) in the presence of a catalyst. In certain embodiments of the present invention, the naphthenic base oil comprises No. 20 naphthenic base oil or No. 30 naphthenic base oil. The source of the cycloalkyl base oil is not particularly limited in the present invention, and may be generally commercially available.
The preparation raw material of the air compressor oil composition also comprises an antioxidant. In certain embodiments of the invention, the antioxidant is present in an amount of 3 wt.% or 4 wt.%.
In certain embodiments of the present invention, the antioxidant comprises one or more of an aminic antioxidant and a phenolic antioxidant. In certain embodiments of the present invention, the amine antioxidant is selected from one or more of the antioxidants T531, dioctyldiphenylamine and alkyldiphenylamine. In certain embodiments of the present invention, the phenolic antioxidant is antioxidant T501. In certain embodiments of the present invention, the antioxidant comprises antioxidant T531, dioctyl diphenylamine and antioxidant T501, and the mass ratio of antioxidant T531, dioctyl diphenylamine and antioxidant T501 is 1:1:1.
the preparation raw material of the air compressor oil composition also comprises a metal deactivator. In certain embodiments of the present invention, the metal deactivator is present in an amount of 0.2wt% or 0.25wt%.
In certain embodiments of the present invention, the metal deactivator comprises one or more of a benzotriazole derivative and a thiadiazole derivative. In certain embodiments of the present invention, the metal deactivator comprises one or more of T551, irgamet39, and T561. In certain embodiments of the present invention, the metal deactivator comprises T551 and T561 in a mass ratio of T551 and T561 of 1:1.
the raw materials for preparing the air compressor oil composition also comprise an antirust agent. In certain embodiments of the present invention, the rust inhibitor is present in an amount of 0.3 wt.% or 0.2 wt.%.
In certain embodiments of the present invention, the rust inhibitor comprises one or more of an organic carboxylic acid rust inhibitor, an organic carboxylate rust inhibitor, a sulfonate rust inhibitor, and a heterocyclic compound rust inhibitor. In certain embodiments of the present invention, the rust inhibitor comprises one or more of dodecenylsuccinic acid, sodium sebacate, neutral barium dinonylnaphthalenesulfonate, and benzotriazole.
The preparation raw material of the air compressor oil composition provided by the invention also comprises a pour point depressant. In certain embodiments of the invention, the pour point depressant is present in an amount of 0.5wt%.
In certain embodiments of the present invention, the pour point depressant comprises one of an alkyl naphthalene, a polyester, and a polyolefin. In certain embodiments of the present invention, the pour point depressant comprises one of T801, polymethacrylate, and T803A.
The preparation raw materials of the air compressor oil composition also comprise an antiwear agent. In certain embodiments of the invention, the antiwear agent is present in an amount of 0.3wt% or 0.4wt%.
In certain embodiments of the invention, the antiwear agent comprises one or more of a sulfur-containing antiwear agent and a phosphorus-containing antiwear agent. In certain embodiments of the invention, the antiwear agent comprises sulfurized isobutylene and/or tricresyl phosphate. In certain embodiments of the present invention, the antiwear agent comprises sulfurized isobutylene and tricresyl phosphate in a mass ratio of 1:2.
the preparation raw material of the air compressor oil composition also comprises an anti-emulsifier. In certain embodiments of the invention, the amount of the demulsifier is 0.05wt% or 0.03wt%.
In certain embodiments of the present invention, the demulsifier comprises one of the nonionic demulsifiers. In certain embodiments of the invention, the demulsifier comprises a condensate of an amine and ethylene oxide or an ethylene glycol ester.
The preparation raw material of the air compressor oil composition provided by the invention also comprises an antifoaming agent. In certain embodiments of the invention, the anti-foaming agent is present in an amount of 0.03wt% or 0.01wt%.
In certain embodiments of the present invention, the anti-foaming agent comprises one of a silicon-based anti-foaming agent, a non-silicon-based anti-foaming agent, and a composite anti-foaming agent. In certain embodiments of the present invention, the anti-foaming agent comprises one of T901, T911, and T921.
The invention also provides a preparation method of the air compressor oil composition, which comprises the following steps:
a) Dehydrating the coal-based base oil and the naphthenic base oil;
b) Stirring and mixing the dehydrated base oil, the antioxidant, the metal deactivator, the antirust agent, the pour point depressant, the antiwear agent, the demulsifier and the antifoaming agent to obtain the air compressor oil composition.
In the preparation method of the air compressor oil composition, the raw material components and the proportion are the same as above, and are not described again.
In certain embodiments of the invention, the temperature of the dehydration is 120 ℃.
In some embodiments of the invention, the temperature of the stirring and mixing is 60-80 ℃ and the time is 1-2 h. In certain embodiments, the time for the agitation mixing is 2 hours. The stirring method of the stirring and mixing is not particularly limited in the present invention, and a stirring method of stirring and mixing known to those skilled in the art may be employed.
In certain embodiments of the present invention, after the agitating and mixing, further comprising filtering. The method of filtration is not particularly limited in the present invention, and a filtration method known to those skilled in the art may be used.
The source of the above-mentioned raw materials is not particularly limited, and the raw materials may be generally commercially available.
In the air compressor oil composition provided by the invention, all components have synergistic effect, and the finally obtained air compressor oil composition has excellent oxidation stability, long service life, higher viscosity index, lower pour point, better wear resistance and lower cost, and completely meets the requirements of oil for an air compressor system.
In order to further illustrate the present invention, the following detailed description of an air compressor oil composition and a preparation method thereof is provided in connection with examples, which should not be construed as limiting the scope of the present invention.
The reagents used in the following examples are all commercially available.
Example 1
Heating 40wt% of No. 6 coal base oil, 45.62wt% of No. 10 coal base oil and 10wt% of No. 20 naphthenic base oil to 120 ℃ to remove water, cooling to 60-80 ℃, adding antioxidant T5311wt%, antioxidant dioctyl diphenylamine 1wt%, antioxidant T501 1wt%, metal deactivator T5510.1wt%, metal deactivator T5610.1wt%, antirust dodecenyl succinic acid 0.3wt%, pour point depressant T801 0.5wt%, isobutene sulfide 0.1wt%, antiwear agent tricresyl phosphate 0.2wt%, antiwear amine and ethylene oxide condensate 0.05wt%, and antifoamer T921 0.03wt%, stirring and mixing at 60-80 ℃ for 2h, and filtering to obtain the air compressor oil composition.
Example 2
Heating 89.41wt% of No. 6 coal base oil and 5wt% of No. 30 naphthenic base oil to 120 ℃ to remove water, cooling to 60-80 ℃, adding 4wt% of antioxidant alkyl diphenylamine, 39.25 wt% of metal deactivator Irgamet, 0.2wt% of antirust benzotriazole, 0.2wt% of antirust neutral barium dinonylnaphthalene sulfonate, 0.5wt% of pour point depressant polymethacrylate, 0.4wt% of antiwear agent sulfurized isobutylene, 0.03wt% of anti-emulsifier ethylene glycol ester and 0.01wt% of anti-foaming agent T901, stirring and mixing for 2 hours at 60-80 ℃, and filtering to obtain the air compressor oil composition.
Comparative example 1
Heating 90wt% of HVI III 8 base oil and 5.62wt% of dehydrated HVI II 10 base oil to 120 ℃ to remove water, cooling to 60-80 ℃, adding 1wt% of antioxidant T531, 1wt% of antioxidant dioctyldiphenylamine, 1wt% of antioxidant T501, 0.1wt% of metal deactivator T551, 0.3wt% of metal deactivator T5610.1, 0.3wt% of antirust dodecenylsuccinic acid, 0.5wt% of pour point depressant T801, 0.1wt% of antiwear agent sulfurized isobutylene, 0.2wt% of antiwear agent tricresyl phosphate, 0.05wt% of amine demulsifier and ethylene oxide condensate, and 0.03wt% of antifoam T921, stirring and mixing for 2 hours at 60-80 ℃, and filtering to obtain the air compressor oil composition.
The air compressor oil compositions prepared in examples 1 to 2 and comparative example 1 were subjected to performance tests, and the results are shown in table 1.
TABLE 1 results of performance test of air compressor oil compositions of examples 1-2 and comparative example 1
Figure BDA0003031110020000071
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. An air compressor oil composition is prepared from the following raw materials:
Figure FDA0003737322760000011
the sum of the using amount of the components is 100 percent;
the coal-made base oil consists of No. 6 coal-made base oil and/or No. 10 coal-made base oil;
the naphthenic base oil comprises No. 20 naphthenic base oil or No. 30 naphthenic base oil.
2. The air compressor oil composition of claim 1, wherein the antioxidant comprises one or more of an amine antioxidant and a phenolic antioxidant;
the metal deactivator comprises one or more of benzotriazole derivatives and thiadiazole derivatives.
3. The air compressor oil composition of claim 1, wherein the antioxidant comprises one or more of antioxidant T531, dioctyl diphenylamine, alkyl diphenylamine and antioxidant T501;
the metal deactivator comprises one or more of T551, irgamet39 and T561.
4. The air compressor oil composition of claim 1, wherein the rust inhibitor comprises one or more of an organic carboxylic acid rust inhibitor, an organic carboxylate rust inhibitor, a sulfonate rust inhibitor, and a heterocyclic compound rust inhibitor;
the pour point depressant includes one of alkyl naphthalene, polyesters, and polyolefins.
5. The air compressor oil composition of claim 1, wherein the rust inhibitor comprises one or more of dodecenylsuccinic acid, sodium sebacate, neutral dinonylbarium naphthalene sulfonate and benzotriazole;
the pour point depressant comprises one of T801, polymethacrylate and T803A.
6. The air compressor oil composition of claim 1, wherein the antiwear agent comprises one or more of a sulfur-containing antiwear agent and a phosphorus-containing antiwear agent;
the demulsifier comprises one of nonionic demulsifiers;
the anti-foaming agent comprises one of a silicon type anti-foaming agent, a non-silicon type anti-foaming agent and a composite type anti-foaming agent.
7. The air compressor oil composition of claim 1 wherein the antiwear agent comprises sulfurized isobutylene and/or tricresyl phosphate;
the anti-emulsifier comprises a condensate of amine and ethylene oxide or glycol ester;
the antifoaming agent comprises one of T901, T911 and T921.
8. A method for preparing the air compressor oil composition of any one of claims 1 to 7, comprising the steps of:
a) Dehydrating the coal-based base oil and the naphthenic base oil;
b) Stirring and mixing the dehydrated base oil obtained in the step A), an antioxidant, a metal deactivator, an antirust agent, a pour point depressant, an antiwear agent, an anti-emulsifier and an anti-foaming agent to obtain the air compressor oil composition.
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