CN111363607A - Super-long-service-life engine oil and preparation method thereof - Google Patents

Super-long-service-life engine oil and preparation method thereof Download PDF

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Publication number
CN111363607A
CN111363607A CN202010306029.8A CN202010306029A CN111363607A CN 111363607 A CN111363607 A CN 111363607A CN 202010306029 A CN202010306029 A CN 202010306029A CN 111363607 A CN111363607 A CN 111363607A
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oil
engine oil
parts
base oil
examples
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王彦胜
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Hebei Guanyuan Lubrication Technology Co ltd
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Hebei Guanyuan Lubrication Technology Co ltd
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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
    • 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
    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/06—Well-defined aromatic compounds
    • C10M2203/065—Well-defined aromatic compounds 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms 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
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic 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
    • 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
    • C10M2209/102—Polyesters
    • C10M2209/1023—Polyesters 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/09—Complexes with metals

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  • 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 super long-life engine oil, which belongs to the technical field of engine oil and comprises base oil and AN additive, wherein the base oil comprises 45-55 parts by weight of GTL base oil, 3-10 parts by weight of alkyl naphthalene AN30, 5-10 parts by weight of PAO base oil, 3-8 parts by weight of polyester and 5-10 parts by weight of diester; the additive comprises 2-6 parts of viscosity index improver, 0.1-0.5 part of pour point depressant, 15-20 parts of multifunctional additive and 1-5 parts of antiwear agent, and the preparation method of the engine oil with the ultra-long service life comprises the following steps: uniformly mixing the base oil, heating to 60-70 ℃ while stirring, then adding the viscosity index improver and the pour point depressant, uniformly stirring, finally adding the multifunctional additive and the antiwear agent, uniformly stirring, and standing for 7-9 hours to obtain a finished product. The invention has the advantages of long service life and reduced oil change times.

Description

Super-long-service-life engine oil and preparation method thereof
Technical Field
The invention relates to the technical field of engine oil, in particular to engine oil with an ultra-long service life and a preparation method thereof.
Background
At present, engine lubricating oil, also called internal combustion engine lubricating oil, is called engine oil for short, is a lubricating medium of each moving part in an engine system, and has the functions of lubricating, cooling, cleaning, sealing and the like.
The oil change cycle of the existing lubricating oil is generally as follows: 5000 kilometers of the car and 10000 kilometers of the diesel vehicle. Near the oil change cycle, the following phenomena will gradually occur in the engine oil: 1. the oil product is oxidized at high temperature to generate three types of harmful substances (carbon deposit, paint film and oil sludge), and finally the viscosity is increased and the lubricating effect is reduced; 2. all lubricating oils, without exception, contain "finger-stick" (viscosity index improver) to obtain multigrade engine oils with good cold start properties and maintaining adequate viscosity at high temperatures, but which are life-span due to the shearing action of the friction pairs (gears, bearings, etc.), that is: the viscosity of the lubricating oil gradually decreases with increasing number of shears until permanently lost. Finally, the viscosity of the lubricating oil becomes thin, and the noise of the engine becomes large; 3. as acidic substances generated in the using process of the oil product are increased, the corrosion to metal parts of an engine is generated; 4. the base oils used in conventional lubricating oils have their own drawbacks: for example, the self-cleaning capability and the oxidation resistance are weak, and a large amount of oil sludge is generated. The oil has to be replaced at this time.
Therefore, the above prior art solutions have the following drawbacks: the replacement of the engine oil is cumbersome, which increases the cost of replacing the engine oil and may delay the normal operation of the engine oil during the frequent replacement.
Disclosure of Invention
The invention aims to provide engine oil with an ultra-long service life, which has the advantages that: long service life and reduced oil change times.
The above object of the present invention is achieved by the following technical solutions:
the super-long-life engine oil comprises base oil and an additive, wherein the base oil comprises the following components in parts by weight:
45-55 parts of GTL base oil, 3-10 parts of alkyl naphthalene AN30, 5-10 parts of PAO base oil, 3-8 parts of polyester and 5-10 parts of diester;
the additive comprises the following components:
2-6 parts of viscosity index improver, 0.1-0.5 part of pour point depressant, 15-20 parts of multifunctional additive and 1-5 parts of antiwear agent.
By adopting the technical scheme, the GTL base oil is III+Base oil, saturated thereofThe oil has high hydrocarbon content, basically does not contain nitrogen and sulfur, does not contain aromatic hydrocarbon, is 100 percent of isoparaffin, has excellent oxidation stability and low-temperature performance, low volatility, extremely high viscosity index and extremely low impurity content, does not generate oil sludge in the using process of the engine oil, can prolong the service life of the engine oil, and further can adopt GTL base oil such as Shell GTL; the alkyl naphthalene AN30 is API group V base oil, has excellent thermal oxidation stability, high flash point, low evaporation loss, excellent hydrolytic stability, excellent additive solubility and good demulsification performance, improves the high-temperature resistance of the engine oil and improves the solubility of the additive in the engine oil; the PAO base oil is hydrogenated and synthesized hydrocarbon base liquid, has good low-temperature fluidity, high flash point and ignition point, is not flammable, has low evaporation rate, thereby having less high-temperature consumption and large working temperature range, can keep better performance at high and low temperatures, has less coking, is not easy to generate oil sludge, can prolong the service life of the engine oil, and further can adopt PAO base oil such as PAO 8; the polarity of the polyester and the diester can enable oil film molecules to be adhered to the surface of metal, so that the lubricating performance is excellent, the friction heat can be greatly reduced, the compatibility of the polyester and the additive is good, the additive can be guaranteed to be dissolved in engine oil, the additive can stably exert the effect, the viscosity of the diester is small, the viscosity index is high, the pour point of the diester can be generally lower than-60 ℃, the viscosity of the engine oil can be improved, the pour point of the engine oil can be reduced, the engine oil can be used at a low temperature, further, the polyester can be polyester with the model of polyester 4035, and the diester can be polyester with the model of diester 2013.
The viscosity index improver is used for improving the viscosity of the engine oil, so that the engine oil keeps relatively stable and relatively high viscosity in a relatively large temperature change range, and therefore the engine oil can form a sufficiently thick oil film on the surface of a friction pair in a use temperature range; the pour point depressant mainly has the function of reducing the pour point of the engine oil, so that the fluidity of the engine oil at low temperature is maintained; the antiwear agent improves the lubricating and antiwear properties of the engine oil; the multifunctional additive, such as Yafudun 12210, can ensure that the engine is always in a good lubricating state under various weather conditions and operating conditions, and has long service life and low cost.
Through compounding of the five base oils, the oil pressure of the engine oil is stable, the shearing stability is good, the viscosity is not reduced all the time, no oil mud is generated, the engine oil is high-temperature resistant and low-temperature resistant, is universal in winter and summer, has less evaporation loss and is free from oil loss, the service life of the engine oil can reach 10W kilometers, and therefore the effects of enabling the service life of the engine oil to be long and reducing the oil change times are achieved.
The flash point of the PAO base oil is high, the alkylnaphthalene AN30 is high-temperature resistant, so the evaporation loss is less, the viscosity of GTL base oil, PAO base oil, diester and polyester is more stable, the antiwear agent plays a role in reducing the friction coefficient, the viscosity index improver also further improves the viscosity of the engine oil, and the oil consumption of the engine oil can be reduced by one time under the comprehensive action.
The invention is further configured to: the weight ratio of the PAO base oil to the diester is 1: (0.8-1.2).
By adopting the technical scheme, although the diester has good high and low temperature resistance and wear resistance, the diester has poor hydrolytic stability and is unstable when encountering water, the alkyl naphthalene AN30 has good hydrolytic stability, and the alkyl naphthalene AN30 and the diester have good solubility, so that the problem of hydrolytic stability of the diester can be solved, the engine oil has the characteristics of high thermal oxidation stability and high wear resistance, the temperature generated by friction in the use process of the engine oil is reduced, the engine oil is not easy to be oxidized to generate carbon deposition, paint films and oil sludge, and the service life of the engine oil is prolonged.
Tests show that the compounding performance of the PAO base oil and the diester is better and the service life of the engine oil is longer under the condition of the proportion.
Meanwhile, in the use condition of the rubber seal, the double grease has a certain rubber swelling effect, and the PAO8 can enable the rubber to shrink, so that the engine oil can be used in the use condition of the rubber seal, and the use condition range of the engine oil is enlarged.
The invention is further configured to: the weight ratio of the polyester to the alkyl naphthalene AN30 is 1: (0.8-1.6).
By adopting the technical scheme, the polyester has double performances of synthetic ester and PAO, is compatible with an antiwear agent, and has remarkable load capacity and extreme pressure performance; the lubricating oil is compatible with PAO base oil, has low thickening effect, can increase the shear stability of the engine oil, namely the viscosity is increased when the shear rate is increased, so that the speed of the lubricating oil which is gradually and permanently lost along with the increase of the shearing times is reduced in the using process of the engine oil, the thickening effect is small, the normal lubricating effect of the engine oil is not influenced, the using time of the engine oil is prolonged, and the oil changing times are reduced; and the polyester has higher viscosity index and high-temperature and high-shear resistance, thereby further prolonging the service time of the engine oil and reducing the oil change times.
Through tests, in the proportion range, the service life of the engine oil is longer and the oil consumption is lower.
The invention is further configured to: the weight ratio of the diester to the alkyl naphthalene AN30 is 1: (0.7-1.2).
By adopting the technical scheme, the diester has poor hydrolytic stability, the alkyl naphthalene AN30 has excellent hydrolytic stability, the alkyl naphthalene AN30 and the diester can be well dissolved, and the problem of poor hydrolytic stability is well solved by compounding the diester and the alkyl naphthalene. Through tests, under the proportion, the service life of the engine oil is longer and the oil consumption is lower in the proportion range.
The invention is further configured to: the weight ratio of the GTL base oil, the PAO base oil and the alkyl naphthalene AN30 is 1: (0.12-0.17): (0.07-0.18).
By adopting the technical scheme, through tests, the oil consumption of the engine oil can be further reduced within the weight ratio range of GTL base oil, PAO base oil and alkyl naphthalene AN 30.
The invention is further configured to: the antiwear agent is selected from one or more of fullerene 6316 and organic molybdenum MOLYVANR 3000.
By adopting the technical scheme, the fullerene 6316 is organic nitrogen molybdenum fullerene, is completely dissolved in engine oil, and has excellent lubricating and wear-resisting properties; the organic molybdenum MOLYVANR3000 is an oil-soluble organic molybdenum compound, can be well dissolved with engine oil, has excellent extrusion wear resistance, reduces the friction coefficient of the engine oil, and reduces the friction of boundary and mixed lubrication, thereby reducing the energy consumption of boundary friction.
The invention is further configured to: the viscosity index improver is metallocene V1000.
By adopting the technical scheme, the metallocene V1000 is the ultrahigh-viscosity metallocene poly-alpha-olefin, has excellent low-temperature performance and viscosity-temperature performance, excellent lubricity, extremely high oil film strength, excellent thermal oxidation stability, excellent shear stability and excellent sealing element compatibility, improves the viscosity, low-temperature performance, lubricity, thermal oxidation stability, shear stability and the like of the engine oil, and is beneficial to prolonging the service life of the engine oil.
The invention is further configured to: the pour point depressant is selected from one or more of Vl-248 and T602.
The invention also aims to provide a preparation method of the engine oil with the ultra-long service life, which comprises the following steps:
uniformly mixing the base oil, heating to 60-70 ℃ while stirring, then adding the viscosity index improver and the pour point depressant, uniformly stirring, finally adding the multifunctional additive and the antiwear agent, uniformly stirring, and standing for 7-9 hours to obtain a finished product.
In conclusion, the beneficial technical effects of the invention are as follows:
1. by compounding five kinds of base oil, the engine oil has good shearing stability, the viscosity is not reduced all the time, no oil mud is generated, the engine oil is high temperature resistant and low temperature resistant, is universal in winter and summer, has less evaporation loss and does not lose oil, thereby achieving the effects of prolonging the service life of the engine oil, reducing the frequency of oil change and greatly reducing the oil consumption of the engine oil;
2. by compounding PAO base oil and the diester, the problem of hydrolysis stability of the diester is solved, the characteristics of high thermal oxidation stability and high wear resistance are achieved, and the temperature generated by friction in the use process of the engine oil is reduced, so that the engine oil is not easily oxidized by high temperature to generate carbon deposition, paint film and oil sludge, and the service life of the engine oil is prolonged;
3. by compounding polyester and alkyl naphthalene AN30, the thickening effect is low, and the speed of permanent loss of the viscosity of lubricating oil is reduced gradually along with the increase of the shearing frequency in the use process of the engine oil, so that the service time of the engine oil is prolonged, and the oil change frequency is reduced.
Detailed Description
The present invention will be described in further detail below.
The GTL base oil is Shell GTL, and the manufacturer is GS250 Shell company;
alkylnaphthalene AN30, manufactured by Shanghai Nake lubricating technology, Inc.;
PAO8, manufactured by Shanghai Nake lubrication technology, Inc.;
polyester 4035, manufactured by Shanghai Nake lubrication technology, Inc.;
diester 2013, manufactured by lecusts (Lexo) lubricating oil, usa;
fullerene 6316, manufactured by saint chemicals, inc, of ca;
the organic molybdenum MOLYVANR3000 is moist in brand, and is produced by Schutan chemical engineering, Inc. in Hangzhou province;
metallocene V1000, manufactured by Shanghai Nake lubricating technology, Inc.;
vl-248, manufacturer romances, germany;
t602, manufactured by Shanghai Mingrun chemical Co.
Example 1
The engine oil with the ultra-long service life, the base oil and the additive comprise, by weight, 45g of GTL base oil, 3g of alkyl naphthalene AN30, 5g of PAO base oil, 3g of polyester and 5g of diester; the additive comprises 2g of viscosity index improver, 0.1g of pour point depressant, 15g of multifunctional additive and 1g of antiwear agent. The antiwear agent comprises fullerene 6316 and organic molybdenum MOLYVANR3000 in a weight ratio of 1: 1; the viscosity index improver is metallocene V10100; the pour point depressant comprises VL-248 and T602 in a weight part ratio of 1: 1; the multifunctional additive is jafuton 12210.
A preparation method of engine oil with ultra-long service life comprises the following steps:
uniformly mixing the base oil, heating to 60 ℃ while stirring, then adding the viscosity index improver and the pour point depressant, uniformly stirring, finally adding the multifunctional additive and the antiwear agent, uniformly stirring, and precipitating for 7 hours to obtain a finished product.
Example 2
The engine oil with the ultra-long service life, the base oil and the additive comprise, by weight, 50g of GTL base oil, 5g of alkyl naphthalene AN30, 8g of PAO base oil, 5g of polyester and 6.7g of diester; the additives comprise 4g of viscosity index improver, 0.3g of pour point depressant, 18g of multifunctional additive and 3g of antiwear agent. And the antiwear agent is fullerene 6316; the viscosity index improver is metallocene V10100; the pour point depressant is Vl-248; the multifunctional additive is jafuton 12210.
At this time, the weight ratio of GTL base oil, PAO base oil and alkyl naphthalene AN30 was 1: 0.16: 0.1.
the weight ratio of the PAO base oil to the diester is 1: 0.84.
the weight ratio of polyester to alkyl naphthalene AN30 was 1: 0.75.
a preparation method of engine oil with ultra-long service life comprises the following steps:
uniformly mixing the base oil, heating to 65 ℃ while stirring, then adding the viscosity index improver and the pour point depressant, uniformly stirring, finally adding the multifunctional additive and the antiwear agent, uniformly stirring, and precipitating for 8 hours to obtain a finished product.
Example 3
The engine oil with the ultra-long service life comprises base oil and AN additive, wherein the base oil comprises 55g of GTL base oil, 10g of alkyl naphthalene AN30, 10g of PAO base oil, 8g of polyester and 10g of diester in parts by weight; the additive comprises 6g of viscosity index improver, 0.5g of pour point depressant, 20g of multifunctional additive and 5g of antiwear agent. The antiwear agent is fullerene 6316; the viscosity index improver is metallocene V10100; the pour point depressant comprises VL-248 and T602 in a weight part ratio of 1: 1; the multifunctional additive is jafuton 12210.
A preparation method of engine oil with ultra-long service life comprises the following steps:
uniformly mixing the base oil, heating to 70 ℃ while stirring, then adding the viscosity index improver and the pour point depressant, uniformly stirring, finally adding the multifunctional additive and the antiwear agent, uniformly stirring, and precipitating for 9 hours to obtain a finished product.
Example 4
The difference from example 2 is that:
the weight portion is as follows: 6.4g of diester.
At this time, the weight ratio of PAO base oil to the diester was 1: 0.8.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 5
The difference from example 2 is that:
the weight portion is as follows: 9.6g of diester.
At this time, the weight ratio of PAO base oil to the diester was 1: 1.2.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 6
The difference from example 2 is that:
the weight portion is as follows: the alkylnaphthalene AN30 was 4 g.
At this time, the weight ratio of polyester to alkylnaphthalene AN30 was 1: 0.8.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 7
The difference from example 2 is that:
the weight portion is as follows: the alkylnaphthalene AN30 was 8 g.
At this time, the weight ratio of polyester to alkylnaphthalene AN30 was 1: 1.6.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 8
The difference from example 2 is that:
the weight portion is as follows: the alkylnaphthalene AN30 was 4.69 g.
At this time, the weight ratio of the diester to the alkylnaphthalene AN30 was 1: 0.7.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 9
The difference from example 2 is that:
the weight portion is as follows: the alkylnaphthalene AN30 was 8.04 g.
At this time, the weight ratio of the diester to the alkylnaphthalene AN30 was 1: 1.2.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 10
The difference from example 2 is that:
the weight portion is as follows: 6g of PAO base oil and 9g of alkylnaphthalene AN 30.
At this time, the weight ratio of GTL base oil, PAO base oil and alkyl naphthalene AN30 was 1: 0.12: 0.18.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 11
The difference from example 2 is that:
the weight portion is as follows: 8.5g of PAO base oil and 3.5g of alkyl naphthalene AN 30.
At this time, the weight ratio of GTL base oil, PAO base oil and alkyl naphthalene AN30 was 1: 0.17: 0.07.
except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Comparative example 1
The difference from example 2 is that:
the weight portion is as follows: the GTL base oil was 65 g.
Except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Comparative example 2
The difference from example 2 is that:
the weight portion is as follows: the alkylnaphthalene AN30 was 20 g.
Except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Comparative example 3
The difference from example 2 is that:
the weight portion is as follows: PAO base oil 20 g.
Except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Comparative example 4
The difference from example 2 is that:
the weight portion is as follows: the polyester was 15 g.
Except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Example 5
The difference from example 2 is that:
the weight portion is as follows: the amount of the diester was 20 g.
Except for this, an ultra-long-life engine oil was obtained in the same manner as in example 2.
Comparative example 6
10 kilometres of engine oil on the market, type: CI-4+10W/40, SAE grade 15W40, API grade CI-4, Shandong Runsheng New energy science, Inc., of the manufacturer.
Performance detection
The engine oils of examples 1-11 and comparative examples 1-6 were tested according to the following test items:
GB/T265-88 "kinematic viscometry and kinetic viscosity calculation for Petroleum products" test the kinematic viscosity (mm) at 100 ℃ of the engine oils of examples 1-11 and comparative examples 1-62(s), the greater the kinematic viscosity, the higher the engine oil viscosity;
GB/T1995-1998 "calculation of viscosity index of Petroleum products" measures the viscosity index of the engine oils of examples 1-11 and comparative examples 1-6, and the larger the viscosity index is, the smaller the decrease in kinematic viscosity of the engine oil with increasing temperature is indicated;
GB/T6538-2010 (Cold Start simulator method for measuring apparent viscosity of engine oil) detects the low-temperature dynamic viscosity (-20 ℃) of the engine oils of examples 1-11 and comparative examples 1-6, and the lower the low-temperature dynamic viscosity is, the better the low-temperature flow performance is;
GB/T0059-1996 "method for determining evaporative loss of lubricating oil (Noak method)" examination of evaporative loss of the oils of examples 1-11 and comparative examples 1-6 (250 ℃,1 h; mass fraction%).
Second, the engine oils of examples 1 to 11 and comparative examples 1 to 6 were subjected to a practical use test.
The test vehicle is selected from the following vehicle types: swedish Volvo, Engine model/Displacement TD102F/9.6L,6 cylinders 4 strokes, bore/stroke/Power 120mm/140mm/235kW, oil Capacity 30L.
The engine oil of the same test vehicle was first drained and the three filters replaced, and the test vehicles were rinsed with the engine oils of examples 1-11 and comparative examples 1-6, respectively, drained after thermal cycling, and refilled with an equal volume of test oil after the rinse was completed. And respectively collecting oil samples of the engine oil at 10 km and 10.5 km, and detecting. In order to reduce the influence of the oil supplement amount on the test oil, the vehicle is heated and sampled according to the specified mileage, the sampling amount is strictly controlled to be not more than 50ml, and the new oil with the corresponding amount is supplemented after sampling.
According to GB/T7607-2002 oil change index of diesel engine oil, the following items of tests are carried out on the oil samples of the engine oil with different mileage obtained by sampling for examples 1-11 and comparative examples 1-6:
GB/T11137-1989 'kinematic viscosity determination method (counter-current method) and dynamic viscosity calculation method for dark petroleum products' detects the change rate/% of kinematic viscosity at 100 ℃ of an oil sample of engine oil;
SH/T0251-1993 (2004) alkali value determination method (perchloric acid potentiometric titration method) for detecting the alkali value/(mgKOH/g) of an oil sample of the engine oil;
GB T7304-;
GB/T3536-2008 & Criflan open cup method for measuring flash and ignition point of petroleum product, the method detects the flash point/DEG C of the oil sample of the engine oil.
Oil change index in attached table GB/T7607-2002
Figure BDA0002455818860000081
Figure BDA0002455818860000091
The detection performance is shown in table 2.
And thirdly, measuring the consumption (L/km) of the engine oil in the test vehicle when the test vehicle runs for 1 km.
The detection performance is shown in table 2.
TABLE 1 engine oil Performance test results
Figure BDA0002455818860000092
TABLE 2 oil service Performance test results
Figure BDA0002455818860000093
Figure BDA0002455818860000101
TABLE 3 oil consumption measurement results
Figure BDA0002455818860000111
As can be seen from Table 1, the kinematic viscosities of the oils of examples 1 to 11 are all within the quality index of 12.5 to 16.3mm2The kinematic viscosity of the engine oils of comparative examples 1-5 is outside the quality index range, indicating that each base oil cannot exceed its defined ratio range. The kinematic viscosity of the engine oils of examples 1-11 is higher than that of the engine oil of comparative example 6, indicating that the formulations and proportions of the engine oils of examples 1-11 are superior.
The viscosity indexes of the engine oils of the examples 1 to 11 are all higher than that of the engine oil of the comparative example 6, namely the viscosity of the engine oils of the examples 1 to 11 is more stable in temperature change, the wider the applicable environment temperature is, the better the lubricating property is, and the better the proportioning and the process parameters of the components of the examples 1 to 11 are. In examples 1-3, the viscosity index of the engine oil in example 2 is the largest, the stability of the kinematic viscosity of the engine oil along with the change of temperature is higher, and the mixture ratio of the components and the process parameters in example 2 are optimal. In examples 1-3, 4-11, the viscosity index of the engine oils of examples 4-11 were all higher than that of examples 1, 3, while the weight ratio of PAO base oil to diester of examples 4, 5 was closer to that of example 2, indicating that the component ratios and process parameters of the engine oils are optimal in the range between the weight ratios of PAO base oil to diester of examples 4, 5; the weight ratio of the polyester to the alkyl naphthalene AN30 of examples 6, 7 was closer to that of example 2, indicating that the component ratios of the motor oil and the process parameters were optimal in the range between the weight ratios of the polyester to the alkyl naphthalene AN30 of examples 6, 7; the weight ratio of the diester to alkylnaphthalene AN30 of examples 8 and 9 was closer to that of example 2, indicating that the component ratios and process parameters of the engine oil were optimal in the range between the weight ratios of the diester to alkylnaphthalene AN30 of examples 8 and 9; the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10, 11 are closer to example 2, indicating that the component ratios and process parameters of the engine oil are optimal within the range between the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10, 11.
The low-temperature dynamic viscosity of the engine oils of examples 1-11 is far less than that of the engine oil of comparative example 6, i.e., the low-temperature flow performance of the engine oils of examples 1-11 is better, which shows that the mixture ratio and the process parameters of the components of examples 1-11 are better. In examples 1-3, the low temperature kinematic viscosity of the engine oil of example 2 is the smallest, which indicates that the engine oil has better flow properties at low temperatures, and the mixture ratio of the components and the process parameters of example 2 are the best. In examples 1-3 and 4-11, the low temperature kinematic viscosity of the engine oils of examples 4-11 were lower than that of examples 1 and 3, while the weight ratio of the PAO base oil to the diester of examples 4 and 5 was closer to that of example 2, indicating that the component ratios and process parameters of the engine oils were optimal within the range between the weight ratios of the PAO base oil to the diester of examples 4 and 5; the weight ratio of the polyester to the alkyl naphthalene AN30 of examples 6, 7 was closer to that of example 2, indicating that the component ratios of the motor oil and the process parameters were optimal in the range between the weight ratios of the polyester to the alkyl naphthalene AN30 of examples 6, 7; the weight ratio of the diester to alkylnaphthalene AN30 of examples 8 and 9 was closer to that of example 2, indicating that the component ratios and process parameters of the engine oil were optimal in the range between the weight ratios of the diester to alkylnaphthalene AN30 of examples 8 and 9; the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10, 11 are closer to example 2, indicating that the component ratios and process parameters of the engine oil are optimal within the range between the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10, 11.
The evaporation loss of the engine oils of examples 1-11 is much less than that of the engine oil of comparative example 6, i.e., the oil consumption of the engine oils of examples 1-11 is low, which shows that the mixture ratio of the components of examples 1-11 and the process parameters are better. In examples 1-3, the evaporation loss of the engine oil of example 2 is the minimum, which shows that the oil consumption is the lowest, and the mixture ratio of the components and the process parameters of example 2 are the best; in examples 1-3, 4-11, the evaporation losses of the engine oils of examples 4-11 were all higher than those of examples 1, 3, while the weight ratios of the PAO base oil to the diester of examples 4, 5 were closer to that of example 2, indicating that the component ratios and process parameters of the engine oils are optimal in the range between the weight ratios of the PAO base oil to the diester of examples 4, 5; the weight ratio of the polyester to the alkyl naphthalene AN30 of examples 6, 7 was closer to that of example 2, indicating that the component ratios of the motor oil and the process parameters were optimal in the range between the weight ratios of the polyester to the alkyl naphthalene AN30 of examples 6, 7; the weight ratio of the diester to alkylnaphthalene AN30 of examples 8 and 9 was closer to that of example 2, indicating that the component ratios and process parameters of the engine oil were optimal in the range between the weight ratios of the diester to alkylnaphthalene AN30 of examples 8 and 9; the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10, 11 are closer to example 2, indicating that the component ratios and process parameters of the engine oil are optimal within the range between the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10, 11.
As can be seen from Table 2, the engine oil of comparative example 6 has reached the oil change index at 100 ℃ kinematic viscosity change rate, base number and acid number increment when the vehicle is 10 km, and the flash point is very close to the oil change index, while the engine oils of examples 1-11 have certain distances from the oil change index at 100 ℃ kinematic viscosity change rate, base number, acid number increment and flash point increment when the vehicle is 10 km, and are close to the oil change index until 10.5 km, so that the service life of the engine oil is longer, and the mixture ratio of the components and the process parameters of the engine oils of examples 1-11 are better.
As can be seen from Table 2, in examples 1-11, the change rate of the kinematic viscosity at 100 ℃, the base number, the acid value and the flash point of the engine oil in example 2 are 10 km and 10.5 km away from the oil change index, so that the difference between the indexes is the largest, and the mixture ratio and the process parameters of the components in example 2 are the best. Each index of the engine oil of examples 1-11 is superior to that of comparative examples 1-5, which shows that the proportion of each base oil of the engine oil exceeds the proportion, and the base oil has influence on the service life of the engine oil.
As can be seen from Table 3, the consumption of the engine oils of examples 1-11 was much lower than that of the engine oil of comparative example 6, indicating that the oil consumption of the engine oils of examples 1-11 was greatly reduced; in example 2 and comparative examples 1 to 5, the consumption of the engine oil of example 2 is also significantly higher than that of the engine oils of comparative examples 1 to 5, which shows that the oil consumption is significantly increased when any one of the base oils of 5 engine oils compounded with each other is out of the range defined.
In examples 1-3, the consumption of the engine oil in example 2 was the lowest, indicating that the proportions and parameters of the components in example 2 were the best.
In examples 1 to 3 and 4 to 5, the consumption of the engine oil of examples 4 and 5 was lower than that of examples 1 and 3, while the weight ratio of the PAO base oil and the diester of examples 4 and 5 was closer to that of example 2, indicating that the oil consumption was more excellent in the range between the weight ratios of the PAO base oil and the diester of examples 4 and 5.
In examples 1-3 and 6-7, the consumption of the engine oil of examples 6 and 7 was lower than that of examples 1 and 3, the weight ratio of the polyester of examples 6 and 7 to the alkyl naphthalene AN30 was closer to that of example 2, and it was found that the oil consumption was more excellent in the range between the weight ratios of the polyester of examples 6 and 7 to the alkyl naphthalene AN 30.
In examples 1-3 and 8-9, the consumption of the engine oil of examples 8 and 9 was lower than that of examples 1 and 3, the weight ratio of the diester and alkylnaphthalene AN30 of examples 8 and 9 was closer to that of example 2, and it was found that the oil consumption was more excellent in the range between the weight ratios of the diester and alkylnaphthalene AN30 of examples 8 and 9.
In examples 1 to 3 and 10 to 11, the consumption of the engine oil of examples 10 and 11 was lower than that of examples 1 and 3, and the weight ratio of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10 and 11 was closer to that of example 2, indicating that the oil consumption was more excellent in the range between the weight ratios of the GTL base oil, PAO base oil and alkylnaphthalene AN30 of examples 10 and 11.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading this specification, but only fall within the scope of the claims of the present invention.

Claims (9)

1. An ultra-long life engine oil, characterized in that: the base oil comprises the following components in parts by weight:
45-55 parts of GTL base oil, 3-10 parts of alkyl naphthalene AN30, 5-10 parts of PAO base oil, 3-8 parts of polyester and 5-10 parts of diester;
the additive comprises the following components:
2-6 parts of viscosity index improver, 0.1-0.5 part of pour point depressant, 15-20 parts of multifunctional additive and 1-5 parts of antiwear agent.
2. The ultra-long life engine oil of claim 1, wherein: the weight ratio of the PAO base oil to the diester is 1: (0.8-1.2).
3. The ultra-long life engine oil of claim 1, wherein: the weight ratio of the polyester to the alkyl naphthalene AN30 is 1: (0.8-1.6).
4. The ultra-long life engine oil of claim 1, wherein: the weight ratio of the diester to the alkyl naphthalene AN30 is 1: (0.7-1.2).
5. The ultra-long life engine oil of claim 1, wherein: the weight ratio of the GTL base oil, the PAO base oil and the alkyl naphthalene AN30 is 1: (0.12-0.17): (0.07-0.18).
6. The ultra-long life engine oil of claim 1, wherein: the antiwear agent is selected from one or more of fullerene 6316 and organic molybdenum MOLYVANR 3000.
7. The ultra-long life engine oil of claim 1, wherein: the viscosity index improver is metallocene V1000.
8. The ultra-long life engine oil of claim 1, wherein: the pour point depressant is selected from one or more of Vl-248 and T602.
9. The method of producing an ultra-long life engine oil according to any one of claims 1 to 8, characterized in that: the method comprises the following steps: uniformly mixing the base oil, heating to 60-70 ℃ while stirring, then adding the viscosity index improver and the pour point depressant, uniformly stirring, finally adding the multifunctional additive and the antiwear agent, uniformly stirring, and standing for 7-9 hours to obtain a finished product.
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