CN113512455A - Lubricating oil composition for piston air compressor - Google Patents
Lubricating oil composition for piston air compressor Download PDFInfo
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- CN113512455A CN113512455A CN202010276540.8A CN202010276540A CN113512455A CN 113512455 A CN113512455 A CN 113512455A CN 202010276540 A CN202010276540 A CN 202010276540A CN 113512455 A CN113512455 A CN 113512455A
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- ionic liquid
- lubricating oil
- oil composition
- antioxidant
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- 239000000203 mixture Substances 0.000 title claims abstract description 87
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 49
- 239000002608 ionic liquid Substances 0.000 claims abstract description 51
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 37
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 34
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 28
- 239000006078 metal deactivator Substances 0.000 claims abstract description 25
- 239000002199 base oil Substances 0.000 claims abstract description 18
- -1 demulsifiers Substances 0.000 claims abstract description 18
- 239000013556 antirust agent Substances 0.000 claims abstract description 13
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 12
- GZGGDBJPYVSAGF-UHFFFAOYSA-N phosphoric acid;1,3-thiazole Chemical compound C1=CSC=N1.OP(O)(O)=O GZGGDBJPYVSAGF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 16
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 14
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 claims description 12
- 125000003342 alkenyl group Chemical group 0.000 claims description 12
- 239000001384 succinic acid Substances 0.000 claims description 11
- 150000002148 esters Chemical class 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 4
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 claims description 4
- 150000004867 thiadiazoles Chemical class 0.000 claims description 4
- 125000005591 trimellitate group Chemical group 0.000 claims description 4
- 125000005184 naphthylamino group Chemical group C1(=CC=CC2=CC=CC=C12)N* 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 35
- 230000003647 oxidation Effects 0.000 abstract description 14
- 238000007254 oxidation reaction Methods 0.000 abstract description 14
- 239000000654 additive Substances 0.000 abstract description 9
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 230000002195 synergetic effect Effects 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000012216 screening Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 7
- 239000006260 foam Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000003254 anti-foaming effect Effects 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 4
- 239000010725 compressor oil Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000000274 adsorptive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 150000002391 heterocyclic compounds Chemical class 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FXNDIJDIPNCZQJ-UHFFFAOYSA-N 2,4,4-trimethylpent-1-ene Chemical group CC(=C)CC(C)(C)C FXNDIJDIPNCZQJ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical group C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
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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
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms 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
- C10M2207/285—Esters of aromatic polycarboxylic acids
- C10M2207/2855—Esters of aromatic polycarboxylic acids used as base material
-
- 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
- C10M2207/287—Partial esters
- C10M2207/288—Partial esters containing free carboxyl groups
-
- 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
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
-
- 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
- C10M2215/065—Phenyl-Naphthyl amines
-
- 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
-
- 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
-
- 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
- C10M2223/043—Ammonium or amine salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention relates to a lubricating oil composition for a piston type air compressor, which comprises the following components in percentage by weight: 0.5-3 wt% of antioxidant, 0.1-0.5 wt% of ionic liquid, 0.03-0.06 wt% of metal deactivator, 0.03-0.06 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of anti-foaming agent and the balance of base oil; wherein the ionic liquid is thiazole phosphate ionic liquid, and the addition amount of the ionic liquid is 0.1-0.5 wt%. The novel ionic liquid compound system is adopted, excellent high-temperature stability and oxidation resistance are shown, the oil temperature can be effectively controlled, the carbon deposit generation is reduced, the additives show good compatibility and synergistic effect by screening metal deactivators, rust inhibitors, demulsifiers, defoaming agents and the like, the performance is excellent, and the harsh working condition requirements of modern piston type air compressor equipment can be met.
Description
Technical Field
The invention belongs to the technical field of lubricating oil and lubricating oil additives, and relates to a lubricating oil composition, in particular to a lubricating oil composition for a piston type air compressor.
Background
The piston type air compressor has the advantages of wide pressure range, strong adaptability, high operation efficiency, good economy and the like, and is widely applied to the fields of petrochemical enterprises such as chemical fertilizers and ethylene production, large ships and the like. At present, parameters such as the exhaust pressure, the temperature and the like of the piston type air compressor are further improved due to production requirements, and Original Equipment Manufacturers (OEMs) put higher requirements on the lubricating oil of the piston type air compressor in order to ensure the safe operation of equipment.
Patent CN 107304380A discloses an air compressor oil composition, which adopts mineral or synthetic base oil and uses an antioxidant and antiwear multi-effect additive with a structure of formula (I) to show excellent antiwear and antioxidant performances.
Patent US 4824601a uses acid activated alkaline earth metal to catalyze diisobutylene and diphenylamine to form an alkylated amine mixture as an antioxidant, greatly improving the antioxidant properties of lubricating oils and other functional fluids.
The patent does not relate to the application of the ionic liquid additive composition in the piston type air compressor oil, and other documents have no relevant report.
Disclosure of Invention
The invention aims to provide a lubricating oil composition, which is particularly suitable for a piston type air compressor, has excellent high-temperature stability, can effectively control the oil temperature and reduce the generation of carbon deposit, and has excellent performances of wear resistance, oxidation resistance, rust prevention, water diversion, foam resistance and the like.
Therefore, the piston type air compressor lubricating oil composition provided by the invention comprises the following components in percentage by weight:
0.5-3 wt% of antioxidant, 0.1-0.5 wt% of ionic liquid, 0.03-0.06 wt% of metal deactivator, 0.03-0.06 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of anti-foaming agent and the balance of base oil;
wherein the ionic liquid is thiazole phosphate ionic liquid, and the addition amount of the ionic liquid is 0.1-0.5 wt%.
In the lubricating oil composition of the present invention, it is preferable that the ionic liquid has a structure represented by formula (1):
in the formula, R is C1-C4An alkane.
The molecular structural formula of the ionic liquid shows that the ionic liquid is a nitrogen-sulfur containing double-bond compound and a heterocyclic compound, has the effects of passivating metal activity and inhibiting oxidation and aging of oil products catalyzed by metal and the compound thereof, has outstanding oxidation resistance under the conditions of high temperature and high pressure, and can effectively prolong the service life of the oil products after being compounded with naphthylamine antioxidants.
The lubricating oil composition of the present invention preferably comprises the following components in parts by weight: 1-2 wt% of antioxidant, 0.2-0.4 wt% of ionic liquid, 0.03-0.05 wt% of metal deactivator, 0.03-0.05 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of antifoaming agent, and the balance of base oil; wherein the dosage of the ionic liquid is 0.2-0.4 wt%.
In the lubricating oil composition of the present invention, it is preferable that the antioxidant is a naphthylamine antioxidant.
In the lubricating oil composition of the present invention, it is preferable that the naphthylamine antioxidant is at least one of phenyl- α -naphthylamine and octylated phenyl- α -naphthylamine. Aiming at the characteristic that the working temperature of a lubricating system of a piston type air compressor is relatively high, the invention preferably selects a naphthylamine antioxidant with better high temperature resistance, phenyl-alpha-naphthylamine and octylated phenyl-alpha-naphthylamine, and compounds thiazole phosphate ionic liquid, and the service life of the oil product is obviously prolonged under the synergistic action of S-N-P.
In the lubricating oil composition of the present invention, it is preferable that the metal deactivator is a benzotriazole derivative or thiadiazole derivative. The metal deactivator of the present invention has high oil solubility, can prevent the corrosion of sulfur, organic acid, etc. to the metal surface, and may react with metal ion to complex into inert matter to lose the catalytic oxidation effect.
In the lubricating oil composition of the present invention, it is preferable that the rust inhibitor is alkenyl succinic acid, alkenyl succinic acid half ester, or polyoxyethylene lauryl ether. The antirust molecules form an adsorptive protective film on the surface of the metal, can replace water on the surface of the metal, play a role in dehydration and prevent the metal from rusting.
In the lubricating oil composition of the present invention, it is preferable that alkenyl groups in the alkenyl succinic acid and the alkenyl succinic acid half ester are each independently C6-C18An alkenyl group.
The lubricating oil composition of the present invention, wherein the demulsifier is preferably an oil-soluble polyether or polyoxypropylene-type derivative. The demulsifier provided by the invention has excellent demulsification performance and simultaneously takes the foam resistance into consideration.
In the lubricating oil composition of the present invention, the antifoaming agent is preferably a polyacrylate non-silicone type antifoaming agent. The anti-foaming agent is convenient to use, has good compatibility with various additives, simultaneously has the functions of stability, oil solubility, anti-foaming property and the like, and has small influence on air release.
The lubricating oil composition of the present invention is preferably one wherein the base oil is trimellitate.
The lubricating oil composition for the piston type air compressor, provided by the invention, can endow oil products with new special performance or enhance certain original performance by correctly selecting and reasonably adding each component, and meets higher use requirements of the piston type air compressor.
The lubricating oil composition for the piston type air compressor comprises the following components in percentage by weight: the mixture compounded by the naphthylamine antioxidant and the thiazole phosphate ionic liquid shows excellent high-temperature stability and oxidation resistance, and can effectively control the oil temperature and reduce the generation of carbon deposit. In addition, through screening the metal deactivator, the antirust agent, the demulsifier, the defoamer and the base oil, the good compatibility and synergistic effect are shown, the performances of wear resistance, rust resistance, water diversion, foam resistance and the like are excellent, the stability is good, and the harsh working condition requirements of modern piston type air compressor equipment can be met.
Drawings
FIG. 1 is an appearance chart of a method for measuring a scorch tendency of a lubricating oil according to example 1 of the present invention.
FIG. 2 is an appearance chart of a method for measuring a scorch tendency of a lubricating oil according to example 2 of the present invention.
FIG. 3 is an appearance diagram of a conventional Kunlun DAC air compressor oil coking tendency measurement method.
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 invention provides a piston type air compressor lubricating oil composition, which comprises the following components in percentage by weight:
0.5-3 wt% of antioxidant, 0.1-0.5 wt% of ionic liquid, 0.03-0.06 wt% of metal deactivator, 0.03-0.06 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of anti-foaming agent and the balance of base oil;
wherein the ionic liquid is thiazole phosphate ionic liquid, and the addition amount of the ionic liquid is 0.1-0.5 wt%. The thiazole phosphate ionic liquid is added in a dosage of, for example but not limited to, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 and 0.5 wt%.
In some embodiments, the ionic liquid has the structure shown in formula (1):
in the formula, R is C1-C4Alkanes such as, but not limited to, straight-chain alkanes, branched alkanes, cyclic alkanes.
The molecular structural formula of the ionic liquid shows that the ionic liquid is a nitrogen-sulfur containing double-bond compound and a heterocyclic compound, has the effects of passivating metal activity and inhibiting oxidation and aging of oil products catalyzed by metal and the compound thereof, has outstanding oxidation resistance under the conditions of high temperature and high pressure, and can effectively prolong the service life of the oil products after being compounded with naphthylamine antioxidants.
In some embodiments, the components of the composition and their amounts are: 1-2 wt% of antioxidant, 0.2-0.4 wt% of ionic liquid, 0.03-0.05 wt% of metal deactivator, 0.03-0.05 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of antifoaming agent, and the balance of base oil; wherein the dosage of the ionic liquid is 0.2-0.4 wt%.
In some embodiments, the components of the composition and their amounts are: 0.5 wt% of antioxidant, 0.5 wt% of ionic liquid, 0.03 wt% of metal deactivator, 0.03 wt% of antirust agent, 0.01 wt% of demulsifier, 0.01 wt% of antifoaming agent and the balance of base oil; wherein the adding amount of the ionic liquid is 0.3 wt%.
In some embodiments, the components of the composition and their amounts are: 1.0 wt% of antioxidant, 0.4 wt% of ionic liquid, 0.06 wt% of metal deactivator, 0.06 wt% of antirust agent, 0.01 wt% of demulsifier, 0.02 wt% of antifoaming agent and the balance of base oil; wherein the adding amount of the ionic liquid is 0.3 wt%.
In some embodiments, the components of the composition and their amounts are: 1.5 wt% of antioxidant, 0.3 wt% of ionic liquid, 0.04 wt% of metal deactivator, 0.05 wt% of antirust agent, 0.02 wt% of demulsifier, 0.01 wt% of antifoaming agent, and the balance of base oil; wherein the adding amount of the ionic liquid is 0.3 wt%.
In some embodiments, the antioxidant is a naphthylamine-based antioxidant.
In some embodiments, the naphthylamine-based antioxidant is at least one of phenyl- α -naphthylamine and octylated phenyl- α -naphthylamine. Aiming at the characteristic that the working temperature of a lubricating system of a piston type air compressor is relatively high, the invention preferably selects a naphthylamine antioxidant with better high temperature resistance, phenyl-alpha-naphthylamine and octylated phenyl-alpha-naphthylamine, and compounds thiazole phosphate ionic liquid, and the service life of the oil product is obviously prolonged under the synergistic action of S-N-P.
In some embodiments, the metal deactivator is a benzotriazole derivative or a thiadiazole derivative. The metal deactivator of the present invention has high oil solubility, can prevent the corrosion of sulfur, organic acid, etc. to the metal surface, and may react with metal ion to complex into inert matter to lose the catalytic oxidation effect.
In some embodiments, the rust inhibitor is an alkenyl succinic acid, an alkenyl succinic acid half ester, or a polyoxyethylene lauryl ether. The antirust molecules form an adsorptive protective film on the surface of the metal, can replace water on the surface of the metal, play a role in dehydration and prevent the metal from rusting.
In some embodiments, the alkenyl groups in the alkenyl succinic acid and the alkenyl succinic acid half-ester are each independently C6-C18An alkenyl group.
In some embodiments, the demulsifier is an oil-soluble polyether or polyoxypropylene-type derivative. The demulsifier provided by the invention has excellent demulsification performance and simultaneously takes the foam resistance into consideration.
In some embodiments, the anti-foaming agent is a polyacrylate non-silicone type anti-foaming agent. The anti-foaming agent is convenient to use, has good compatibility with various additives, simultaneously has the functions of stability, oil solubility, anti-foaming property and the like, and has small influence on air release.
In some embodiments, the base oil is trimellitate.
The lubricating oil composition provided by the invention can endow oil products with new special performance or strengthen certain original performance by correctly selecting and reasonably adding each component, and meets higher use requirements of a piston type air compressor.
Types of antioxidants in the composition:
in the invention, the antioxidant in the composition is naphthylamine antioxidant, phenyl-alpha-naphthylamine or octylated phenyl-alpha-naphthylamine or the combination of the two, is a free radical terminator, and can meet the working condition requirements of piston type air compressor equipment on high temperature and high pressure. Meanwhile, the additive is compounded with thiazole phosphate ionic liquid, so that the service life of the oil product is obviously prolonged under the synergistic action of S-N-P.
Content of antioxidant in the composition:
the mass percentage of the naphthylamine antioxidant is 0.5-3%, preferably 1-2%. If the mass percent of the naphthylamine antioxidant is less than 0.5%, the possibility of insufficient antioxidant capacity exists; if the mass percent of the naphthylamine antioxidant is more than 3%, the possibility of dark color and excessive oil sludge generation after oil oxidation exists.
Type of ionic liquid in the composition:
in the invention, the ionic liquid structure in the composition is thiazole phosphate ionic liquid, thiazole rings can inhibit the catalytic oxidation of metal and compounds thereof on oil products, the service life of the oil products is prolonged, and meanwhile, the composition has good compatibility with naphthylamine antioxidants, and the oxidation resistance of the oil products is improved.
Content of ionic liquid in composition:
in the present invention, the content of the ionic liquid in the composition is not particularly limited, and is usually 0.1 to 0.5% by mass, preferably 0.2 to 0.4% by mass. If the mass percent of the ionic liquid in the composition is less than 0.1%, the possibility of weakening the insufficient catalytic performance of the metal and reducing the service life of the oil product exists; if the mass percent of the ionic liquid in the composition is more than 0.5%, the possibility of no obvious improvement on the service life of the oil exists, and the cost is increased.
Species of metal deactivators in the composition:
in the present invention, the type of the metal deactivator in the composition is not particularly limited, and a benzotriazole derivative or thiadiazole derivative can be selected. The metal deactivator has good oil solubility, can prevent corrosion of sulfur, organic acid and the like to the metal surface, and can be complexed into an inert substance by reacting with metal ions to lose the catalytic oxidation effect.
Content of metal deactivator in composition:
in the present invention, the content of the metal deactivator in the composition is not particularly limited, and is usually 0.03 to 0.06% by mass. If the mass percent of the metal deactivator in the composition is less than 0.03 percent, the possibility of poor metal protection and easier corrosion of oil products exists; if the mass percent of the metal deactivator in the composition is greater than 0.06%, there is a possibility that there is no significant improvement in the oil's service life and the cost is increased.
Types of rust inhibitors in the composition:
in the present invention, the kind of the rust inhibitor in the composition is not particularly limited, and alkenyl succinic acid or alkenyl succinic acid half ester or polyoxyethylene lauryl ether may be selected, wherein the alkenyl is C6-C18An alkenyl group. The antirust molecules form an adsorptive protective film on the metal surface, can replace water on the metal surface and play a role in dehydration.
Content of rust inhibitor in the composition:
in the present invention, the content of the rust inhibitor in the composition is not particularly limited, but is usually 0.03 to 0.06% by mass. If the mass percent of the antirust agent in the composition is less than 0.03%, the possibility of poor metal protection and easier rusting of oil products exists; if the mass percentage of the rust inhibitor in the composition is more than 0.06%, there is a possibility that the service life of the oil product is not significantly improved, and the cost is increased.
The type of demulsifier in the composition:
in the present invention, the kind of the demulsifier in the composition is not particularly limited, and an oil-soluble polyether or a polyoxypropylene type derivative can be selected. The demulsifier has excellent demulsification performance and simultaneously takes foam resistance into consideration.
Content of demulsifier in the composition:
in the present invention, the content of the demulsifier in the composition is not particularly limited, and is usually 0.01 to 0.02% by mass. If the mass percent of the demulsifier in the composition is less than 0.01%, the possibility of easy emulsification of oil exists; if the mass percentage of the demulsifier in the composition is more than 0.02%, the possibility that the demulsifier is excessive but the oil emulsifying performance is still poor exists, and the cost is increased.
Type of antifoam in the composition:
in the present invention, the type of the anti-foaming agent in the composition is not particularly limited, and a polyacrylate non-silicon type anti-foaming agent can be selected. The anti-foaming agent is convenient to use, has good compatibility with various additives, simultaneously has the functions of stability, oil solubility, anti-foaming property and the like, and has small influence on air release.
Content of antifoaming agent in composition:
in the present invention, the content of the antifoaming agent in the composition is not particularly limited, and is usually 0.01 to 0.02% by mass. If the mass percent of the antifoaming agent in the composition is less than 0.01%, the possibility of poor oil antifoaming performance exists; if the amount of the antifoaming agent in the composition is greater than 0.02% by mass, there is a possibility that the antifoaming agent is excessive but the antifoaming property of the oil is still poor, and the cost is increased.
Types of base oils in the composition:
in the present invention, the type of the base oil in the composition is not particularly limited, and trimellitate is generally preferred.
Example 1
The composition of the lubricating oil composition for a piston air compressor is shown in Table 1, wherein the additive amount of the thiazole phosphate ionic liquid is 0.5 wt%.
TABLE 1
The lubricating oil obtained by compounding the components and the content thereof shown in the table 1 is subjected to a high-temperature coke-forming test under the following test conditions: the coking tendency is measured by temporarily contacting the heated lubricating oil (oil temperature is 100 ℃) with a high-temperature (310-320 ℃) aluminum plate. The appearance after the high temperature coke formation test is shown in FIG. 1.
Example 2
The difference from the embodiment 1 is that: the components and amounts of the lubricating oil compositions are shown in Table 2. The appearance after the high temperature coke formation test is shown in FIG. 2.
TABLE 2
Example 3
The difference from the embodiment 1 is that: the components and amounts of the lubricating oil compositions are detailed in Table 3.
TABLE 3
Example 4
The difference from the embodiment 1 is that: the components and amounts of the lubricating oil compositions are detailed in Table 4.
TABLE 4
Example 5
The difference from the embodiment 1 is that: the components and amounts of the lubricating oil compositions are detailed in Table 5.
TABLE 5
Comparative example 1
The difference from the embodiment 1 is that: components and amounts of lubricating oil compositions. The lubricating oil composition used in this comparative example is known under the trade name Kunlun DAC air compressor oil. The appearance of the commercial lubricating oil after the high temperature coke formation test is shown in FIG. 3.
As can be seen from a comparison of fig. 1, 2 and 3, the lubricating oil composition of the present invention: the mixture compounded by the naphthylamine antioxidant and the thiazole phosphate ionic liquid shows excellent high-temperature stability and oxidation resistance, and can effectively control the oil temperature and reduce the generation of carbon deposit. In addition, through screening the metal deactivator, the antirust agent, the demulsifier, the defoamer and the base oil, the good compatibility and synergistic effect are shown, the performances of wear resistance, rust resistance, water diversion, foam resistance and the like are excellent, the stability is good, and the harsh working condition requirements of modern piston type air compressor equipment can be met.
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 (11)
1. A lubricating oil composition for a piston type air compressor is characterized by comprising the following components in percentage by weight:
0.5-3 wt% of antioxidant, 0.1-0.5 wt% of ionic liquid, 0.03-0.06 wt% of metal deactivator, 0.03-0.06 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of anti-foaming agent and the balance of base oil;
wherein the ionic liquid is thiazole phosphate ionic liquid, and the addition amount of the ionic liquid is 0.1-0.5 wt%.
2. The lubricating oil composition of claim 1, wherein the ionic liquid has the structure of formula (1):
in the formula, R is C1-C4An alkane.
3. Lubricating oil composition according to claim 1, characterized in that the components and their contents of the composition are:
1-2 wt% of antioxidant, 0.2-0.4 wt% of ionic liquid, 0.03-0.05 wt% of metal deactivator, 0.03-0.05 wt% of antirust agent, 0.01-0.02 wt% of demulsifier, 0.01-0.02 wt% of antifoaming agent, and the balance of base oil; wherein the dosage of the ionic liquid is 0.2-0.4 wt%.
4. The lubricating oil composition of claim 1, wherein the antioxidant is a naphthylamine antioxidant.
5. The lubricating oil composition of claim 4, wherein the naphthylamine antioxidant is at least one of phenyl- α -naphthylamine and octylated phenyl- α -naphthylamine.
6. The lubricating oil composition of claim 1, wherein the metal deactivator is a benzotriazole derivative or a thiadiazole derivative.
7. The lubricating oil composition according to claim 1, characterized in that the rust inhibitor is alkenyl succinic acid, alkenyl succinic acid half ester, or polyoxyethylene lauryl ether.
8. The lubricating oil composition of claim 7, wherein the alkenyl groups in the alkenyl succinic acid and the alkenyl succinic acid half ester are each independently C6-C18An alkenyl group.
9. The lubricating oil composition of claim 1, wherein the demulsifier is an oil-soluble polyether or polyoxypropylene-type derivative.
10. The lubricating oil composition according to claim 1, wherein the antifoaming agent is a polyacrylate non-silicon type antifoaming agent.
11. Lubricating oil composition according to claim 1, characterized in that the base oil is trimellitate.
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| CN116410807A (en) * | 2021-12-30 | 2023-07-11 | 中国石油天然气股份有限公司 | Centrifugal compressor oil additive, centrifugal compressor oil and centrifugal compressor |
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