CN117448069B - Special compressor oil for fuel cell air compressor and preparation method thereof - Google Patents
Special compressor oil for fuel cell air compressor and preparation method thereof Download PDFInfo
- Publication number
- CN117448069B CN117448069B CN202311801740.0A CN202311801740A CN117448069B CN 117448069 B CN117448069 B CN 117448069B CN 202311801740 A CN202311801740 A CN 202311801740A CN 117448069 B CN117448069 B CN 117448069B
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- oil
- parts
- fuel cell
- compressor
- hydrocarbon
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- 239000010725 compressor oil Substances 0.000 title claims abstract description 66
- 239000000446 fuel Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 58
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 57
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 57
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims abstract description 38
- 239000002199 base oil Substances 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 36
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims abstract description 35
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- 238000006116 polymerization reaction Methods 0.000 claims abstract description 17
- 125000004185 ester group Chemical group 0.000 claims abstract description 13
- 125000000524 functional group Chemical group 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 13
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical group C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 9
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 6
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 6
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- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 6
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- LWJWGXUXSVJWBY-UHFFFAOYSA-N dihydroxy-phenoxy-sulfanylidene-$l^{5}-phosphane Chemical compound OP(O)(=S)OC1=CC=CC=C1 LWJWGXUXSVJWBY-UHFFFAOYSA-N 0.000 claims description 5
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- 102100039497 Choline transporter-like protein 3 Human genes 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 101000889279 Homo sapiens Choline transporter-like protein 3 Proteins 0.000 claims description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 3
- 108010077895 Sarcosine Proteins 0.000 claims description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
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- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 3
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- 238000005265 energy consumption Methods 0.000 abstract description 5
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- ADYYRXNLCZOUSU-UHFFFAOYSA-M potassium;propan-2-ol;hydroxide Chemical compound [OH-].[K+].CC(C)O ADYYRXNLCZOUSU-UHFFFAOYSA-M 0.000 description 2
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Classifications
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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
- 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
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions 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
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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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
- C10M2207/02—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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- 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
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- C10M2207/285—Esters of aromatic polycarboxylic acids
- C10M2207/2855—Esters of aromatic polycarboxylic acids used as base material
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- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C10M2215/064—Di- and triaryl amines
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/08—Amides
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- C—CHEMISTRY; METALLURGY
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- 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
- 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
- C10M2223/047—Thioderivatives not containing metallic elements
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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
- C10M2223/049—Phosphite
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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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/18—Anti-foaming property
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/72—Extended drain
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses special compressor oil for a fuel cell air compressor and a preparation method thereof, which belong to the technical field of lubricating oil, and comprise the following raw material components in parts by weight: 5-15 parts of hydrocarbon polymerization fluid containing ester group functional groups; 5-15 parts of aromatic ester base oil; 2-4 parts of an antioxidant; 0.5-3 parts of extreme pressure antiwear agent; 0.05-0.2 parts of corrosion inhibitor; 0.05-0.2 parts of rust inhibitor; 0.03-0.1 part of demulsifier; 0.01-0.05 parts of defoaming agent; 65-86 parts of Fischer-Tropsch synthesis hydrocarbon. The compressor oil has extremely low oil carrying quantity, so that the air cleaning of the fuel cell can be ensured to the greatest extent, and the energy conversion efficiency is improved; the energy consumption of the vehicle-mounted air compressor can be reduced to the greatest extent, the energy efficiency is improved, the aging and deterioration of oil products are delayed, and the oil change period is prolonged.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to special compressor oil for a fuel cell air compressor and a preparation method thereof.
Background
Under the double crisis of energy and environment, people need to improve the efficiency of an internal combustion engine to reduce the consumption of petroleum resources and exhaust emission, and also need to develop a new automobile power source. The current new energy sources are mainly electric vehicles, and the power of the new energy sources is derived from batteries with high energy density, including chemical batteries (lithium batteries, sodium batteries and the like) and fuel cells. The lithium battery has the advantages of high single voltage, high energy density and the like, but also has the disadvantages of long charging time, short driving mileage, serious low-temperature performance reduction and the like. Moreover, the disposal of the waste lithium batteries is also a problem to be solved urgently, and the disposal is not good, so that the disposal causes great environmental pollution. The fuel cell is mainly made of hydrogen fuel at present, and the hydrogen energy is a green and efficient secondary energy source, and has the advantages of wide source, high combustion heat value, cleanness, no pollution, storability and the like, thus being favored by people. The proton exchange membrane hydrogen fuel cell is the most common hydrogen fuel cell, is a device for directly converting hydrogen energy into electric energy through electrode reaction, and the reaction products mainly comprise water, heat and electric energy, so that the real zero pollution can be realized. Meanwhile, the energy conversion of the hydrogen fuel cell is not limited by the Carnot cycle, and the efficiency of the hydrogen fuel cell can reach 60% -80% which is far higher than the energy conversion efficiency of the internal combustion engine. Experiments by Toyota corporation found that the energy conversion efficiency of the gasoline vehicle from the fuel tank to the wheels was 16%, but the hydrogen fuel cell vehicle was 60%, which was 44% improvement. Hydrogen energy is also recognized as one of the most desirable power sources for automobiles in the future.
The reaction steps of the hydrogen fuel cell are as follows: (1) The hydrogen in the hydrogen tank reaches the anode catalyst layer through the bipolar plate and the anode gas diffusion layer, and loses electrons to become hydrogen protons under the action of the catalyst; (2) Hydrogen protons generated by the reaction pass through the proton exchange membrane to reach the cathode; (3) electrons travel through an external circuit, creating a current through the load; (4) On the other side, oxygen also passes through the double cathode plate, the diffusion layer and the catalyst layer to react with hydrogen ions and electrons reaching the cathode under the action of the catalyst to generate water and release energy; (5) The water produced and the gases which do not participate in the reaction are discharged or diffuse towards the anode under the effect of the pressure difference.
The hydrogen fuel cell system structure mainly comprises an air system, a hydrogen system and a cooling system. The air compressor is a device for providing reaction gas for the battery system, and the air entering the hydrogen fuel battery stack needs to be pressurized, so that the volume power density inside the system is increased, the efficiency of the battery is greatly influenced, and the air compressor is an important component of an air supply system. However, the air compressor energy consumption is large, and accounts for about 80% of the energy consumption of the auxiliary system of the hydrogen fuel cell, and the efficiency of the air compressor directly influences the reaction inside the electric pile of the engine system, and even influences the compactness and the efficiency of the engine system. The current test shows that the power consumption of the air compressor accounts for 20% -30% of the total output of the electric pile, and the cost accounts for 20% of the hydrogen fuel cell system, so that the control research on the working efficiency and the cost of the hydrogen fuel cell system is required to be enhanced.
Based on the characteristics of the air compressor of the hydrogen fuel cell, the matched compressor oil is required to meet the characteristics of zero oil carrying quantity, low energy consumption, high friction durability, long service life and the like, and the traditional air compressor oil cannot meet the oil requirement.
Disclosure of Invention
The invention provides special compressor oil for a fuel cell air compressor and a preparation method thereof, which solve the problems of poor wear resistance, poor low-temperature fluidity, large oil carrying amount and low energy efficiency in the prior art.
In order to solve the technical problem, the invention provides the following technical scheme:
the special compressor oil for the fuel cell air compressor comprises the following raw material components in parts by weight:
5-15 parts of hydrocarbon polymerization fluid containing ester group functional groups;
5-15 parts of aromatic ester base oil;
2-4 parts of an antioxidant;
0.5-3 parts of extreme pressure antiwear agent;
0.05-0.2 parts of corrosion inhibitor;
0.05-0.2 parts of rust inhibitor;
0.03-0.1 part of demulsifier;
0.01-0.05 parts of defoaming agent;
65-86 parts of Fischer-Tropsch synthesis hydrocarbon.
The hydrocarbon polymerization fluid containing the ester functional groups (shown as a formula 1, R in the formula 1 is alkyl) contains rich ester functional groups, and can bring excellent polarity, adsorption performance, antifriction performance and additive sensitivity; the symmetry of the three-dimensional structure is better, so that the three-dimensional structure has excellent biodegradability and low-temperature fluidity; however, the oxidation stability is slightly inferior due to the influence of the hydrogen atom at the beta position.
Formula 1;
the aromatic ester base oil (shown in a formula 2, R in the formula 2 is alkyl) contains rich ester functional groups, and can bring excellent polarity, adsorption performance, antifriction performance and additive sensitivity; the pi bond structure of the benzene ring can capture peroxide free radicals, and brings about excellent oxidation stability; but its planar rigid structure makes its flowability poor and its structure with aromatic hydrocarbon makes its biodegradability poor.
Formula 2;
the hydrocarbon polymerization fluid containing the ester functional group is matched with the aromatic ester base oil, so that good biodegradability, low-temperature fluidity and oxidation stability can be considered, and the saturated carbon chain structure of the Fischer-Tropsch synthesis hydrocarbon can bring better comprehensive performance to be expressed.
Further, the hydrocarbon polymer fluid containing the ester group functional group is at least one selected from VBS 5-150, VBS 5-180, VBS 5-188, VISCOBASE11-570, VISCOBASE11-574 and VISCOBASE 11-572;
the aromatic ester base oil is selected from at least one of phthalate or trimellitate.
Further, the kinematic viscosity of the hydrocarbon polymer fluid containing the ester group functional group at 40 ℃ is less than 10000mm 2 And/s, the pour point is lower than-20 ℃.
Further, the Fischer-Tropsch synthesis hydrocarbon is produced by natural gas oil production or Fischer-Tropsch synthesis coal gas oil production based on Fischer-Tropsch synthesis technology; the natural gas oil is at least one of GTL411, GTL415, GTL420 or GTL430, and the Fischer-Tropsch synthesis gas oil is at least one of CTL3, CTL4, CTL6 or CTL 10.
Further, the antioxidant is selected from at least one of phenolic antioxidants, amine antioxidants, phosphite antioxidants or macromolecular phenol and amine composite antioxidants; the antioxidant has the main functions of improving the antioxidant capacity of oil products, reducing harmful deposition of oil sludge, paint films and the like, inhibiting viscosity increase and prolonging the service life.
The extreme pressure antiwear agent is at least one of phosphate extreme pressure antiwear agent, phosphate extreme pressure antiwear agent and amine phosphate extreme pressure antiwear agent; the extreme pressure antiwear agent has the main effects of reducing equipment wear, improving extreme pressure resistance and antiwear capacity of oil products covered by a low oil film, and reducing equipment friction damage.
The corrosion inhibitor is at least one selected from benzotriazole, methylbenzotriazole or derivatives thereof; the corrosion inhibitor has the main function of protecting nonferrous metals in equipment, including copper, aluminum and alloys thereof, and reducing chemical or electrochemical metal corrosion.
The antirust agent is at least one of organic amine, nitrogen-containing heterocyclic compound, succinic acid half ester, liquid organic carboxylic acid and sarcosine; the rust inhibitor has the main function of forming a compact protective film on the surface of metal to prevent equipment from being corroded.
The demulsifier is an oil-soluble nonionic surfactant;
the defoaming agent is at least one of organic silicon defoaming agents and non-organic silicon defoaming agents.
Further, the phenolic antioxidant is selected from liquid high molecular phenol with the molecular weight of 500-1500;
the amine antioxidant is selected from alkylated diphenylamine or naphthylamine, wherein the alkylated diphenylamine is selected from alkylated diphenylamine with C4-C8 alkyl atoms, and the naphthylamine is selected from N-phenyl-alpha (beta) -naphthylamine;
the phosphite ester is tri (di-tert-butylphenyl) phosphite;
the phosphite is tris (di-tert-butylphenyl) zinc phosphite;
the high molecular phenol and amine compound antioxidant is a mixed solution of an amine antioxidant and a liquid high molecular phenol antioxidant.
Further, the extreme pressure antiwear agent is at least one selected from phenyl phosphite, phenyl thiophosphate, phenyl phosphite, phenyl thiophosphate and amine phosphate;
the rust inhibitor is selected from liquid imidazoline derivatives or liquid N-oleoyl sarcosine.
Further, the demulsifier is a polymer of ethylene oxide and propylene oxide with molecular weight of 1500-10000;
the defoaming agent is a macromolecular siloxane defoaming agent.
Further, the mass ratio of the hydrocarbon polymer fluid containing the ester functional group to the aromatic ester base oil is 1: (0.65-1.50).
The invention also discloses a preparation method of the special compressor oil for the fuel cell air compressor, which comprises the following steps:
s1, firstly adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and uniformly stirring at 50+/-2 ℃;
s2, adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent into the blending kettle, continuously maintaining the stirring temperature of 50+/-2 ℃, and uniformly stirring;
s3, adding Fischer-Tropsch synthesis hydrocarbon into the blending kettle, continuously maintaining the stirring temperature at 50+/-2 ℃, and uniformly stirring; then demulsifiers and defoamers;
s4, heating is closed, and cooling is carried out to room temperature under the stirring condition; and after blending, filtering for 2-3 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m to obtain the special compressor oil for the fuel cell air compressor.
Compared with the prior art, the invention has the following advantages:
in the compressor oil, the hydrocarbon polymer fluid containing ester functional groups and the aromatic ester base oil are selected to be used in combination, so that good biodegradability, low-temperature fluidity and oxidation stability can be considered, and the saturated carbon chain structure of the Fischer-Tropsch synthesis hydrocarbon can bring better comprehensive performance to be expressed. The extremely low oil carrying-out amount, even zero oil carrying-out amount, can ensure the air cleaning of the fuel cell to the greatest extent and improve the energy conversion efficiency; the energy consumption of the vehicle-mounted air compressor can be reduced to the greatest extent, and the energy efficiency is improved; high friction durability and thermal stability, can delay the aging and deterioration of oil products, ensure the stability of equipment and prolong the oil change period.
In the compressor oil, the hydrocarbon polymer fluid containing ester functional groups and the aromatic ester base oil are matched for use, so that the compressor oil has good sensibility to the functional additives such as the antioxidant, the extreme pressure antiwear agent, the corrosion inhibitor, the antirust agent and the like used in the compressor oil, is easier to obtain the compressor oil with qualified quality, and in addition, the compressor oil provided by the invention has good swelling performance by being matched with Fischer-Tropsch synthesized hydrocarbon, so that the service life of rubber parts in an air compressor is prolonged, and the preparation cost is more economic.
Detailed Description
The following describes the present invention in detail. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, so that the invention is not limited to the specific embodiments disclosed.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The special compressor oil for the fuel cell air compressor comprises the following raw material components in parts by weight:
5-15 parts of hydrocarbon polymerization fluid containing ester group functional groups;
5-15 parts of aromatic ester base oil;
2-4 parts of an antioxidant;
0.5-3 parts of extreme pressure antiwear agent;
0.05-0.2 parts of corrosion inhibitor;
0.05-0.2 parts of rust inhibitor;
0.03-0.1 part of demulsifier;
0.01-0.05 parts of defoaming agent;
65-86 parts of Fischer-Tropsch synthesis hydrocarbon.
Specifically, the hydrocarbon polymer fluid containing ester group functional groups is selected from VISCOBASE series base oil produced by Yingchang chemistry, including but not limited to at least one of VBS 5-150, VBS 5-180, VBS 5-188, VISCOBASE11-570, VISCOBASE11-574 and VISCOBASE 11-572;
the aromatic ester base oil is selected from at least one of phthalate or trimellitate.
Specifically, the kinematic viscosity of the hydrocarbon polymer fluid containing the ester group functional group at 40 ℃ is less than 10000mm 2 S, pour point lower than-20 ℃;
the aromatic ester base oil is preferably phthalate esters and trimellitates produced by the chemical industry of Ikesen Mobil and the chemical industry of He, including but not limited to at least one of P61, P81 and PM 111.
Specifically, the Fischer-Tropsch synthesis hydrocarbon is natural gas oil production based on Fischer-Tropsch synthesis technology or Fischer-Tropsch synthesis coal gas oil production; the natural gas oil is at least one of GTL411, GTL415, GTL420 or GTL430, and the Fischer-Tropsch synthesis gas oil is at least one of CTL3, CTL4, CTL6 or CTL 10.
Specifically, the antioxidant is selected from at least one of phenolic antioxidants, amine antioxidants, phosphite antioxidants or macromolecular phenol and amine composite antioxidants;
the extreme pressure antiwear agent is at least one of phosphate extreme pressure antiwear agent, phosphate extreme pressure antiwear agent and amine phosphate extreme pressure antiwear agent;
the corrosion inhibitor is at least one selected from benzotriazole, methylbenzotriazole or derivatives thereof;
the antirust agent is at least one of organic amine, nitrogen-containing heterocyclic compound, succinic acid half ester, liquid organic carboxylic acid and sarcosine;
the demulsifier is an oil-soluble nonionic surfactant;
the defoaming agent is at least one of organic silicon defoaming agents and non-organic silicon defoaming agents.
Specifically, the phenolic antioxidant is selected from liquid high molecular phenol with the molecular weight of 500-1500;
the amine antioxidant is selected from alkylated diphenylamine or naphthylamine, wherein the alkylated diphenylamine is selected from alkylated diphenylamine with C4-C8 alkyl atoms, and the naphthylamine is selected from N-phenyl-alpha (beta) -naphthylamine;
the phosphite ester is tri (di-tert-butylphenyl) phosphite;
the phosphite is tris (di-tert-butylphenyl) zinc phosphite;
the high molecular phenol and amine compound antioxidant is a mixed solution of an amine antioxidant and a liquid high molecular phenol antioxidant.
More specifically, the antioxidant is at least one of Irganox L64, irganox L135, L57, L115 and L06.
Specifically, the extreme pressure antiwear agent is at least one selected from phenyl phosphite, phenyl thiophosphate, phenyl phosphite, phenyl thiophosphate and amine phosphate.
More specifically, the extreme pressure antiwear agent used in the embodiment of the present invention is at least one of Durad 150B, irgalube TPPT, irgalube 232.
Specifically, the rust inhibitor is selected from liquid imidazoline derivatives or liquid N-oleoyl sarcosine.
More specifically, the rust inhibitor used in the embodiment of the invention is at least one of Sarkosyl O and Amine O. The corrosion inhibitor used in the embodiment of the invention is at least one of CUVAN 303 and CUVAN 826.
Specifically, the demulsifier is a polymer of ethylene oxide and propylene oxide with molecular weight of 1500-10000;
more specifically, the demulsifier used in the embodiment of the invention is at least one of LZ5957 and D800.
Specifically, the defoaming agent is a macromolecular siloxane defoaming agent;
more specifically, the defoaming agent used in the embodiment of the invention is at least one of FOAM BAN149 and LZ 888.
Specifically, the mass ratio of the hydrocarbon polymeric fluid containing the ester functional group to the aromatic ester base oil is 1: (0.65-1.50).
A method for preparing compressor oil special for a fuel cell air compressor, the method comprising the steps of:
s1, firstly adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and uniformly stirring at 50+/-2 ℃;
s2, adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent into the blending kettle, continuously maintaining the stirring temperature of 50+/-2 ℃, and uniformly stirring;
s3, adding Fischer-Tropsch synthesis hydrocarbon into the blending kettle, continuously maintaining the stirring temperature at 50+/-2 ℃, and uniformly stirring; then demulsifiers and defoamers;
s4, heating is closed, and cooling is carried out to room temperature under the stirring condition; and after blending, filtering for 2-3 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m to obtain the special compressor oil for the fuel cell air compressor.
Specifically, in the preparation process of the compressor oil, the stirring speed is 100+/-10 r/min; the stirring and blending time of the step S2 is 30min, the stirring and blending time of the step S3 is 30min, and the stirring time of the whole preparation process is not less than 3 hours.
Example 1
The compressor oil special for the fuel cell air compressor in this embodiment is prepared by blending the following components in parts by weight as shown in table 1:
table 1 formulation composition of example 1
The preparation method of the special compressor oil for the fuel cell air compressor comprises the following steps:
s1, adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and starting stirring at 50 ℃ at a stirring speed of 100r/min;
s2, maintaining the temperature and the stirring speed, sequentially adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent, continuously maintaining the stirring temperature at 50 ℃, stirring at 100r/min, and stirring and blending for 30min;
s3, maintaining the temperature and the stirring speed, adding Fischer-Tropsch synthesized hydrocarbon, continuously maintaining the stirring temperature at 50 ℃, and stirring and blending for 30min at the stirring speed of 100r/min; then adding demulsifier and defoamer in turn;
s4, heating is closed, stirring is carried out, and cooling is carried out to room temperature; the stirring time of the whole blending process is not less than 3 hours, and after the blending is finished, the special compressor oil for the fuel cell air compressor is obtained by filtering for 3 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m.
Example 2
The compressor oil special for the fuel cell air compressor in this embodiment is prepared by blending the following components in parts by weight as shown in table 2:
table 2 formulation composition of example 2
The preparation method of the special compressor oil for the fuel cell air compressor comprises the following steps:
s1, adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and starting stirring at 48 ℃ at a stirring speed of 110r/min;
s2, maintaining the temperature and the stirring speed, sequentially adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent, continuously maintaining the stirring temperature at 48 ℃, and stirring and blending for 30min at the stirring speed of 110r/min;
s3, maintaining the temperature and the stirring speed, adding Fischer-Tropsch synthesized hydrocarbon, continuously maintaining the stirring temperature at 48 ℃ and the stirring speed at 110r/min, and stirring and blending for 30min; then adding demulsifier and defoamer in turn;
s4, heating is closed, stirring is carried out, and cooling is carried out to room temperature; the stirring time of the whole blending process is not less than 3 hours, and after the blending is finished, the special compressor oil for the fuel cell air compressor is obtained by filtering for 2 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m.
Example 3
The compressor oil special for the fuel cell air compressor in this embodiment is prepared by blending the following components in parts by weight as shown in table 3:
TABLE 3 formulation composition of example 3
The preparation method of the special compressor oil for the fuel cell air compressor comprises the following steps:
s1, adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and starting stirring at a temperature of 52 ℃ at a stirring speed of 90r/min;
s2, maintaining the temperature and the stirring speed, sequentially adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent, continuously maintaining the stirring temperature at 52 ℃, stirring at 90r/min, and stirring and blending for 30min;
s3, maintaining the temperature and the stirring speed, adding Fischer-Tropsch synthesized hydrocarbon, continuously maintaining the stirring temperature at 52 ℃, and stirring and blending for 30min at the stirring speed of 90r/min; then adding demulsifier and defoamer in turn;
s4, heating is closed, stirring is carried out, and cooling is carried out to room temperature; the stirring time of the whole blending process is not less than 3 hours, and after the blending is finished, the special compressor oil for the fuel cell air compressor is obtained by filtering for 3 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m.
Example 4
The compressor oil special for the fuel cell air compressor in this embodiment is prepared by blending the following components in parts by weight as shown in table 4:
table 4 formulation composition of example 4
The preparation method of the special compressor oil for the fuel cell air compressor comprises the following steps:
s1, adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and starting stirring at 50 ℃ at a stirring speed of 100r/min;
s2, maintaining the temperature and the stirring speed, sequentially adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent, continuously maintaining the stirring temperature at 50 ℃, stirring at 100r/min, and stirring and blending for 30min;
s3, maintaining the temperature and the stirring speed, adding Fischer-Tropsch synthesized hydrocarbon, continuously maintaining the stirring temperature at 50 ℃, and stirring and blending for 30min at the stirring speed of 100r/min; then adding demulsifier and defoamer in turn;
s4, heating is closed, stirring is carried out, and cooling is carried out to room temperature; the stirring time of the whole blending process is not less than 3 hours, and after the blending is finished, the special compressor oil for the fuel cell air compressor is obtained by filtering for 3 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m.
Example 5
The compressor oil special for the fuel cell air compressor in this embodiment is prepared by blending the following components in parts by weight as shown in table 5:
table 5 formulation composition of example 5
The preparation method of the special compressor oil for the fuel cell air compressor comprises the following steps:
s1, adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and starting stirring at 50 ℃ at a stirring speed of 100r/min;
s2, maintaining the temperature and the stirring speed, sequentially adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent, continuously maintaining the stirring temperature at 50 ℃, stirring at 100r/min, and stirring and blending for 30min;
s3, maintaining the temperature and the stirring speed, adding Fischer-Tropsch synthesized hydrocarbon, continuously maintaining the stirring temperature at 50 ℃, and stirring and blending for 30min at the stirring speed of 100r/min; then adding demulsifier and defoamer in turn;
s4, heating is closed, stirring is carried out, and cooling is carried out to room temperature; the stirring time of the whole blending process is not less than 3 hours, and after the blending is finished, the special compressor oil for the fuel cell air compressor is obtained by filtering for 3 times by a filtering system with the filtering precision not more than 5 mu m and not less than 15 mu m.
Comparative example 1
A compressor oil dedicated to a fuel cell air compressor was prepared by the same method as in example 1, except that: hydrocarbon polymeric fluids containing ester functional groups were not added and the specific compositions are shown in table 6 below.
Table 6 formulation composition of comparative example 1
Comparative example 2
A compressor oil dedicated to a fuel cell air compressor was prepared by the same method as in example 1, except that: no aromatic ester base oil was added and the specific composition is shown in table 7 below.
Table 7 formulation composition of comparative example 2
Comparative example 3
A compressor oil dedicated to a fuel cell air compressor was prepared by the same method as in example 1, except that: the formulation was free of Fischer-Tropsch hydrocarbon and all of the hydrocarbon polymeric fluid containing ester functionality and the aromatic ester base oil were used as base oils, with the specific compositions shown in Table 8 below.
Table 8 formulation composition of comparative example 3
The compressor oils prepared in the above examples and comparative examples were subjected to performance measurement, wherein the performance evaluation index and the means according to the same are shown in table 9 below.
TABLE 9 means for evaluating and judging the index and basis of the performance
Summary of the experimental methods:
1. kinematic viscosity: GB/T265-88 petroleum product kinematic viscosity measurement method and dynamic viscosity calculation method, under a certain constant temperature, measuring the time for a certain volume of liquid to flow through a calibrated glass capillary viscometer under gravity, and obtaining the product of the capillary constant and the flowing time of the viscometer, namely measuring the kinematic viscosity of the liquid under the temperature. The viscosity index is then calculated from the kinematic viscosity.
2. Flash point: GB/T-3536-2008 method for measuring flash point and ignition point of petroleum products by using open cup method of Cleveland, and loading sample
The test cup is placed in a prescribed scale mark, the temperature of the sample is rapidly increased, and the temperature is slowly increased at a constant rate when the flash point is approached. At a specified temperature interval, a small test flame is used to sweep the test cup, so that the lowest temperature of the test flame, which causes the steam flash at the upper part of the test sample page, is the flash point.
3. Evaporation loss: reference is made to NOACK evaporation loss SH/T0059-1996: the sample and the evaporation loss tester are heated at 250 ℃ under constant pressure for 1h, and the evaporated oil vapor is carried out by air. The evaporation loss of the sample was measured based on the difference in mass of the sample before and after heating. In order to be more close to the working condition of the sliding vane compressor, the invention evaluates the evaporation loss, adjusts the experimental temperature and the experimental time according to the experimental method to 120 ℃ for 3 hours and 200 ℃ for 3 hours respectively.
4. And (3) emulsification: GB/T7305-2003 oil and synthetic liquid separation Performance measurement method, a measuring cylinder is filled with 40ml of a sample and 40ml of distilled water, and stirred at 54℃or 82℃for 5 minutes, the time required for emulsion separation is recorded, and after 30 minutes or 60 minutes of refinement, the volumes of the oil layer (or synthetic liquid), the water layer and the emulsion layer at this time are recorded if the emulsion is not completely separated, or the emulsion layer is not reduced to 3ml or less. The invention takes ISO VG46 viscosity grade as an example, so the test temperature is 54 ℃.
5. Total acid number: in the method for determining the point titration of the acid value of the petroleum product GB/T7304-2014, a sample is dissolved in a titration reagent, the point titration is carried out by taking a potassium hydroxide isopropanol standard solution as the titration reagent, and the electrode pair is a glass indicating electrode and a participating electrode or a composite electrode. And manually or automatically drawing a potentiometric titration curve of the potentiometric mV corresponding to the titration volume, taking an obvious jump point as an end point, and taking the potentiometric value of the corresponding new aqueous acid or alkali buffer solution as the titration end point if the obvious jump point is not present.
6. Hydrolytic stability: the Beverage-bottle method, also called Beverage bottle experiment method, is to put 75g of oil sample and 25g of water mixture into a pressure-resistant Beverage bottle, put polished copper sheet into the mixture as hydrolysis catalyst, put the mixture into a specific hydrolysis stability test box after being covered and sealed, and rotate the Beverage bottle for 48 hours in a head-to-tail mode at 93 ℃. After the experiment is finished, the system is cooled to room temperature, the oil-water mixture is filtered and separated, and the acid value and viscosity of the oil phase, the total acidity of the water layer and the quality change of the copper sheet are measured. The evaluation of the experimental result of the invention is based on the acid value of the oil phase.
7. Air release properties: SH/T0308-2004 lubricating oil air release value determination method A sample is heated to 25, 50 or 75 ℃, and the sample is vigorously agitated by blowing excessive compressed air into the sample, and the air forms small bubbles, i.e., entrainment air, in the sample. The time for the mist air volume in the sample to decrease to 0.2% was recorded after the air was stopped. The test temperature of the invention was chosen to be 50 ℃.
8. Foam tendency/foam stability: GB/T12579-2002 lubricating oil foam property determination method, wherein a sample is blown with air with constant flow rate for 5min at 24 ℃, then is kept still for 10min, at the end of each period, the volume of foam in the sample is respectively determined, a second sample is taken, the test is carried out at 93.5 ℃, and after the foam disappears, the repeated test is carried out at 24 ℃.
9. Rotating oxygen bomb: SH/T0193-2008 lubricant oxidation stability measurement rotary oxygen bomb method, the sample, water and copper catalyst coil are put into a glass container with cover, and put into an oxygen bomb with pressure gauge. The oxygen bomb was filled with 620kPa pressure oxygen and placed in a prescribed constant temperature oil bath (turbine oil 150 ℃ and mineral insulating oil 140 ℃) to be rotated axially at an angle of 30 ° to the horizontal at a speed of 100 r/min. The time (min) required for the test to reach the specified pressure drop is the oxidation stability of the sample. The test temperature of the invention was chosen to be 150 ℃.
10. Total acid number after oxidation corrosion test: the method for measuring the total acid value of the oil product after oxidation corrosion comprises a measuring point titration method for measuring the acid value of a GB/T7304-2014 petroleum product, dissolving a sample in a titration reagent, and carrying out point titration by taking a potassium hydroxide isopropanol standard solution as the titration reagent, wherein the electrode pair is a glass indicating electrode and a participating electrode or a composite electrode. And manually or automatically drawing a potentiometric titration curve of the potentiometric mV corresponding to the titration volume, taking an obvious jump point as an end point, and taking the potentiometric value of the corresponding new aqueous acid or alkali buffer solution as the titration end point if the obvious jump point is not present.
11. Copper sheet corrosion: the GB/T5096-2017 petroleum product copper sheet corrosion test method is characterized in that a polished copper sheet is immersed in a sample with a certain volume, the copper sheet is heated to a specified temperature according to the product category of the sample and kept for a certain time, after the heating period is finished, the copper sheet is taken out, washed and compared with a copper sheet corrosion standard color plate, the copper sheet color change condition is evaluated, and the corrosion grade is determined. The experimental conditions adopted in the discovery are the temperature of 100 ℃ and the experimental time of 3 hours.
13. Liquid phase rust: GB/T11143-2008 inhibitor mineral oil in the presence of water is subjected to rust resistance test, 300ml of sample is mixed with 30ml of distilled water or synthetic seawater, all cylindrical test steel bars are immersed in the mixture, stirring is carried out at 60 ℃, the recommended test period is 24 hours, the proper test period can be determined according to the requirements of both contracts, and the rust mark and the rust degree of the test steel bars can be observed after the test period is finished. The test period adopted by the invention is 24 hours.
14. Seal suitability index SCI: SH/T0305-93 petroleum product seal adaptability index determination method, measure the internal diameter of the rubber ring with the taper gauge, then soak the rubber ring in the sample of 100 degrees C for 24 hours, take out and cool, measure the change of the internal diameter of the rubber ring with the taper gauge, expressed as the volume expansion percentage.
The test results are shown in table 10 below.
Table 10 results of performance tests
From the data in Table 10 above, examples 1-5 prepared by the method of the present invention have significant advantages in terms of the following:
(1) Lower evaporation loss: the evaporation losses at 120 ℃ and 200 ℃ of the embodiment of the invention are obviously lower than those of the comparative example, which shows that the embodiment of the invention has less oil loss.
(2) Better water resistance: the anti-emulsifying index of the embodiment of the invention is obviously better than that of the comparative example, the acid value change after hydrolysis is tested by the hydrolytic stability, and the embodiment is obviously smaller than that of the comparative example, which proves that the embodiment of the invention has better anti-emulsifying and water-resisting properties.
(3) Longer oxidation life, better deposit control: the test time of the rotary oxygen bomb of the embodiment of the invention is obviously longer than that of the comparative example, and the total acid value after the oxidation corrosion test is obviously smaller than that of the comparative example, which proves that the embodiment of the invention has longer oxidation life and better sediment control capability.
(4) According to the invention, the hydrocarbon polymerization fluid containing the ester functional group in the compressor oil and the aromatic ester base oil are matched with each other to generate a synergistic effect, so that the performance of the compressor oil is greatly improved.
From the comparison of experimental data of example 1 and comparative example 1, it can be seen that: if hydrocarbon polymerization fluid containing ester group functional groups is not added into the compressor oil, evaporation loss is increased, so that oil carrying-out amount is increased in the application process, and the method is unfavorable for application in new energy fuel cells; secondly, if hydrocarbon polymer fluid containing ester group functional groups is not added, the rotating oxygen elasticity of the compressor oil is poor, the total acid value is increased after an oxidation corrosion test, which indicates that the stability of the compressor oil is poor, and the carrying-out amount is increased if the compressor oil is applied to the compressor; thirdly, if hydrocarbon polymer fluid containing ester group functional groups is not added, the viscosity index of compressor oil is greatly reduced, the viscosity-temperature performance is poor, the durability of an oil film is reduced, and the lubrication efficiency is reduced.
From the comparison of experimental data of example 1 and comparative example 2, it can be seen that: if the aromatic ester base oil is not added into the compressor oil, the evaporation loss is increased, the oil carrying-out amount is increased in the application process, the application in the new energy fuel cell is not facilitated, the rotating oxygen elasticity of the compressor oil is poor if the aromatic ester base oil is not added, the total acid value is increased after an oxidation corrosion test, the stability of the compressor oil is poor, and the carrying-out amount is increased if the compressor oil is applied in the compressor.
As can be seen from the comparison of the data in example 1 and comparative examples 1-2, when the hydrocarbon polymeric fluid containing ester functional groups and the aromatic ester base oil are simultaneously added into the compressor oil, the compressor oil has lower evaporation loss performance, higher rotating oxygen elasticity and lower total acid value after an oxidation corrosion test, so that the compressor oil has higher stability, is more suitable for being applied to new energy fuel cells, and can bring excellent polarity, adsorption performance, antifriction performance and additive sensitivity because the hydrocarbon polymeric fluid containing ester functional groups contains rich ester functional groups; the symmetry of the three-dimensional structure is better, so that the three-dimensional structure has excellent biodegradability and fluidity; however, the oxidation reaction of chain growth of free radicals is liable to occur due to the influence of hydrogen atoms in the β -position, particularly under high-temperature, oxygen-enriched environmental conditions. The pi bond structure of benzene ring in the aromatic ester base oil can just catch the peroxide free radical, so that the performance defect of hydrocarbon polymer fluid containing ester functional groups can be improved by the combination of the benzene ring and the peroxide free radical. Meanwhile, the planar structure of the aromatic ester base oil leads the aromatic ester base oil to have poor flow property, the structure with aromatic hydrocarbon leads the aromatic ester base oil to have poor biodegradability, and the hydrocarbon polymerization fluid containing ester functional groups can make up the defects of the aromatic ester base oil.
From the comparison of experimental data of example 1 and comparative example 3, it can be seen that: if Fischer-Tropsch hydrocarbon is not added into the compressor oil, the sealing adaptability index of the compressor oil is obviously increased, the service life of the elastomer sealing element is seriously influenced, and oil leakage occurs in serious cases. This is because both the hydrocarbon polymeric fluid containing ester functional groups and the aromatic ester base oil have a rubber swelling effect, whereas the addition of the Fischer-Tropsch hydrocarbon compounds counteracts the swelling of the rubber by the above components. According to the invention, the Fischer-Tropsch synthesis hydrocarbon is added into the compressor oil, so that the service life of the sealing material in the air compressor can be prolonged.
The technical features of the above-described embodiments may be arbitrarily combined, and in order to simplify the description, all possible combinations of the technical features in the above-described embodiments are not exhaustive, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims.
Claims (8)
1. The special compressor oil for the fuel cell air compressor is characterized by comprising the following raw material components in parts by weight:
5-15 parts of hydrocarbon polymerization fluid containing ester group functional groups;
5-15 parts of aromatic ester base oil;
2-4 parts of an antioxidant;
0.5-3 parts of extreme pressure antiwear agent;
0.05-0.2 parts of corrosion inhibitor;
0.05-0.2 parts of rust inhibitor;
0.03-0.1 part of demulsifier;
0.01-0.05 parts of defoaming agent;
65-86 parts of Fischer-Tropsch synthesis hydrocarbon;
the hydrocarbon polymer fluid containing the ester group functional group is selected from at least one of VBS 5-150, VBS 5-180, VBS 5-188, VISCOBASE11-570, VISCOBASE11-574 and VISCOBASE 11-572;
the aromatic ester base oil is selected from at least one of phthalate or trimellitate;
the Fischer-Tropsch synthesis hydrocarbon is produced by natural gas or Fischer-Tropsch synthesis coal; the natural gas oil production based on the Fischer-Tropsch synthesis technology is at least one of GTL411, GTL415, GTL420 or GTL430, and the Fischer-Tropsch synthesis gas oil production is at least one of CTL3, CTL4, CTL6 or CTL 10;
the extreme pressure antiwear agent is at least one of phosphate extreme pressure antiwear agent, phosphate extreme pressure antiwear agent and amine phosphate extreme pressure antiwear agent.
2. The compressor oil special for the fuel cell air compressor according to claim 1, wherein the kinematic viscosity of the hydrocarbon polymer fluid containing the ester group functional group at 40 ℃ is less than 10000mm 2 And/s, the pour point is lower than-20 ℃.
3. The special compressor oil for the fuel cell air compressor according to claim 1, wherein the antioxidant is at least one selected from phenolic antioxidants, amine antioxidants, phosphite esters, phosphite antioxidants or macromolecular phenol and amine composite antioxidants;
the corrosion inhibitor is at least one selected from benzotriazole, methylbenzotriazole or derivatives thereof;
the antirust agent is at least one of organic amine, nitrogen-containing heterocyclic compound, succinic acid half ester, liquid organic carboxylic acid and sarcosine;
the demulsifier is an oil-soluble nonionic surfactant;
the defoaming agent is at least one of organic silicon defoaming agents and non-organic silicon defoaming agents.
4. The compressor oil special for fuel cell air compressor according to claim 3, wherein the phenolic antioxidant is selected from liquid high molecular phenols with molecular weight of 500-1500;
the amine antioxidant is selected from alkylated diphenylamine or naphthylamine, wherein the alkylated diphenylamine is selected from alkylated diphenylamine with C4-C8 alkyl atoms, and the naphthylamine is selected from N-phenyl-alpha (beta) -naphthylamine;
the phosphite ester is tri (di-tert-butylphenyl) phosphite;
the phosphite is tris (di-tert-butylphenyl) zinc phosphite;
the high molecular phenol and amine compound antioxidant is a mixed solution of an amine antioxidant and a liquid high molecular phenol antioxidant.
5. The compressor oil special for fuel cell air compressors according to claim 3, wherein the extreme pressure antiwear agent is at least one selected from the group consisting of phenyl phosphite, phenyl thiophosphate, and amine phosphate;
the rust inhibitor is selected from liquid imidazoline derivatives or liquid N-oleoyl sarcosine.
6. The compressor oil special for fuel cell air compressor according to claim 3, wherein the demulsifier is a polymer of ethylene oxide and propylene oxide having a molecular weight of 1500-10000;
the defoaming agent is a macromolecular siloxane defoaming agent.
7. The compressor oil special for fuel cell air compressors according to claim 3, wherein the mass ratio of the hydrocarbon polymer fluid containing ester functional groups to the aromatic ester base oil is 1: (0.65-1.50).
8. A method for preparing compressor oil dedicated to a fuel cell air compressor according to any one of claims 1 to 7, comprising the steps of:
s1, firstly adding hydrocarbon polymerization fluid containing ester functional groups and aromatic ester base oil into a blending kettle, and uniformly stirring at 50+/-2 ℃;
s2, adding an antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor and an antirust agent into the blending kettle, continuously maintaining the stirring temperature of 50+/-2 ℃, and uniformly stirring;
s3, adding Fischer-Tropsch synthesis hydrocarbon into the blending kettle, continuously maintaining the stirring temperature at 50+/-2 ℃, and uniformly stirring; then adding demulsifier and defoamer;
s4, heating is closed, and cooling is carried out to room temperature under the stirring condition; and after blending, filtering for 2-3 times by using a filtering system with the filtering precision not smaller than 5 mu m and not larger than 15 mu m to obtain the special compressor oil for the fuel cell air compressor.
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