CN111849594A - Diesel engine oil and preparation method thereof - Google Patents
Diesel engine oil and preparation method thereof Download PDFInfo
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- CN111849594A CN111849594A CN202010684492.6A CN202010684492A CN111849594A CN 111849594 A CN111849594 A CN 111849594A CN 202010684492 A CN202010684492 A CN 202010684492A CN 111849594 A CN111849594 A CN 111849594A
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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
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/081—Inorganic acids or salts thereof containing halogen
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- 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
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
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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
- 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
- C10M2205/022—Ethene
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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
- 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
- C10M2205/024—Propene
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
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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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2223/045—Metal containing thio derivatives
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- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
A diesel engine oil and its preparation method, this diesel engine oil, including detergent, its mass fraction is 2-4%; a dispersant, the mass fraction of which is 2 to 3%; an antioxidant, the mass fraction of which is 0.5 to 2%; a viscosity index improver with the mass fraction of 6 to 11 percent; pour point depressant, its mass fraction is 0.1 to 0.4%; a friction modifier, the mass fraction of which is 0.1 to 0.5%; an antifoaming agent, which is 0.001 to 0.005% by mass; and the balance base oil. The diesel engine oil provided by the invention has good oil saving capability, and the oil saving rate is more than 5.8%; the diesel engine oil provided by the invention has better oxidation resistance, better abrasion resistance and better energy-saving effect, and has great practicability, feasibility and great economic value.
Description
Technical Field
The invention belongs to the field of engine oil, and particularly relates to diesel engine oil and a preparation method thereof.
Background
The lubricating oil is a liquid or semisolid lubricating agent used on various types of automobiles and mechanical equipment to reduce friction and protect machines and workpieces, and mainly plays roles in lubrication, cooling, rust prevention, cleaning, sealing, buffering and the like.
Along with the coming out and comprehensive implementation of national energy-saving and environment-friendly laws and regulations, the setting of the fuel consumption limit value of the fuel of the commercial vehicle and the high-speed growth of the heavy truck and bus market, the diesel engine oil meeting the requirements of the heavy truck and bus on energy conservation and long oil change period is the development direction of the diesel engine oil market in future.
The energy loss ratio caused by friction in the combustion process of the engine reaches 20-25% of the effective energy generated by combustion, the lubricating property of the diesel engine oil is improved, the friction coefficient of an oil product can be reduced, and the oil saving performance of the diesel engine oil is effectively improved. The traditional sulfur-phosphorus type lubricating oil additive is easy to decompose at high temperature, so that the lubricating effect is reduced, and the abrasion of equipment, a cylinder body and the like is accelerated. Researches show that the nanoparticles serving as the lubricating oil additive have good wear-resistant and friction-reducing performance and high bearing capacity, have a certain self-repairing function on a wear surface, reduce the wear among engine parts, and can change the sliding friction among the friction into rolling friction to effectively reduce the friction coefficient, thereby reducing the fuel consumption and improving the power performance of the engine.
Disclosure of Invention
In view of the above, one of the main objects of the present invention is to provide a diesel engine oil and a preparation method thereof, which are intended to at least partially solve at least one of the above technical problems.
In order to achieve the above object, as one aspect of the present invention, there is provided a diesel engine oil comprising:
a detergent with a mass fraction of 2 to 4%;
a dispersant, the mass fraction of which is 2 to 3%;
an antioxidant, the mass fraction of which is 0.5 to 2%;
a viscosity index improver with the mass fraction of 6 to 11 percent;
pour point depressant, its mass fraction is 0.1 to 0.4%;
a friction modifier, the mass fraction of which is 0.1 to 0.5%;
an antifoaming agent, which is 0.001 to 0.005% by mass; and
the balance being base oil.
As another aspect of the present invention, there is also provided a method for preparing a diesel engine oil, comprising: the components of the diesel engine oil except the base oil are mixed and then added into the base oil at a certain temperature, and the diesel engine oil is obtained after stirring.
Based on the technical scheme, compared with the prior art, the diesel engine oil and the preparation method thereof have at least one of the following advantages:
1. the diesel engine oil provided by the invention has good oil saving capability, and the oil saving rate is more than 5.8%;
2. the diesel engine oil provided by the invention has better oxidation resistance, better abrasion resistance and better energy-saving effect, and has great practicability, feasibility and great economic value.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
The invention discloses a diesel engine oil, which comprises:
a detergent with a mass fraction of 2 to 4%;
a dispersant, the mass fraction of which is 2 to 3%;
an antioxidant, the mass fraction of which is 0.5 to 2%;
a viscosity index improver with the mass fraction of 6 to 11 percent;
pour point depressant, its mass fraction is 0.1 to 0.4%;
a friction modifier, the mass fraction of which is 0.1 to 0.5%;
an antifoaming agent, which is 0.001 to 0.005% by mass; and
the balance being base oil.
In some embodiments of the invention, the detergent comprises at least one of calcium sulfonate, calcium sulfurized alkylphenol, and calcium alkyl salicylate.
In some embodiments of the invention, the dispersant comprises at least one of polyisobutylene succinimide, boronated succinimide;
in some embodiments of the invention, wherein the polyisobutylene succinimide has a molecular weight of 1000-.
In some embodiments of the invention, the antioxidant comprises at least one of zinc dialkyldithiophosphate, alkyl diphenylamine, phenolic antioxidants.
In some embodiments of the invention, the viscosity index improver comprises at least one of an ethylene-propylene copolymer, a polymethyl methacrylate, a hydrogenated styrene isoprene copolymer.
In some embodiments of the invention, the friction modifier comprises modified nano lanthanum fluoride particles.
In some embodiments of the invention, the pour point depressant is at least one of an alkyl naphthalene, a polyalphaolefin, and a polymethyl methacrylate.
In some embodiments of the present invention, the anti-foaming agent is at least one of a silicon-based anti-foaming agent or a composite anti-foaming agent.
In some embodiments of the invention, the base oil is at least one of a solvent refined base oil, a hydrofinished base oil.
The invention also discloses a preparation method of the diesel engine oil, which comprises the following steps:
the components of the diesel engine oil are mixed with the base oil, added into the base oil at a certain temperature and stirred to obtain the diesel engine oil.
In some embodiments of the invention, the stirring time is 1 to 3 hours;
in some embodiments of the invention, the stirring method comprises mechanical stirring or pulsed stirring;
in some embodiments of the invention, the certain temperature is 55 to 65 ℃.
In an exemplary embodiment, the technical solution adopted by the present invention is as follows: the formula of the engine oil, gasoline and engine oil comprises the following components in percentage by weight:
1) 2-4% of detergent: the used detergent is one or the combination of two or more of synthetic calcium sulfonate, sulfurized calcium alkyl phenate and calcium alkyl salicylate; the detergent is used in engine oil to neutralize acid substance generated in oxidation or combustion and clean paint film and carbon deposit adhered on the piston and keep parts clean; the content of detergent is, for example, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%;
2) 2-3% of dispersant: the used dispersant is at least one of polyisobutylene succinimide ashless dispersant and boronized succinimide, and the molecular weight of the dispersant is controlled to be 1000-; the dispersant is used in engine oil, and substances such as solid particles and oxidation monomers which are easy to generate oil sludge in the engine oil are solubilized and dispersed in lubricating oil; the content of the dispersant is, for example, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%;
3) 0.5-2% of antioxidant: the antioxidant is at least one of zinc dialkyl dithiophosphate, alkyl diphenylamine and phenolic antioxidant; the antioxidant is used in the lubricating oil, can improve the oxidation resistance of oil products and prolong the service life of the lubricating oil; the content of the antioxidant is, for example, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%;
4) 6-11% of viscosity index improver: the viscosity index improver is at least one of ethylene-propylene copolymer, polymethyl methacrylate and hydrogenated styrene isoprene copolymer; the viscosity index improver is used in lubricating oil, and can improve the viscosity of the lubricating oil and improve the viscosity index of the lubricating oil; the content of the viscosity index improver is, for example, 6%, 7%, 8%, 9%, 10%, 11%;
5) pour point depressant 0.1-0.4%: the pour point depressant is one or the combination of two or more of alkyl naphthalene, poly-alpha-olefin and polymethyl methacrylate; the pour point depressant is used in the lubricating oil, so that the pour point of the lubricating oil can be reduced, and the low-temperature flow property of an oil product is improved; the pour point depressant content is, for example, 0.1%, 0.2%, 0.3%, 0.4%;
6) 0.1% -0.5% of friction modifier: the friction modifier is modified nanometer lanthanum fluoride particles; the friction modifier is used in lubricating oil and can reduce the friction coefficient between friction surfaces of an engine; the content of the friction modifier is, for example, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%;
7) 0.001-0.005% of antifoaming agent, wherein the antifoaming agent is used in lubricating oil and can inhibit or eliminate foam generated by oil in application, and the content of the antifoaming agent is, for example, 0.001%, 0.002%, 0.003%, 0.004%, 0.005%;
8) the balance of base oil: the selected base oil is at least one of solvent refined base oil and hydrofined base oil.
The preparation method of the diesel engine oil comprises the following steps: the additive components are added into the base oil according to a certain proportion at the temperature of 55-65 ℃, stirred for 1-3 hours and completely dissolved in the base oil, thus obtaining the invention.
The stirring method of the present invention may be mechanical stirring or pulse stirring.
The technical solution of the present invention is further illustrated by the following specific examples. It should be noted that the following specific examples are given by way of illustration only and the scope of the present invention is not limited thereto.
The chemicals and raw materials used in the following examples were either commercially available or self-prepared by a known preparation method.
Example 1
In the embodiment, the diesel engine oil is blended according to the mass fraction ratio, the viscosity grade is 15W-40, and the specific steps are as follows:
group II base oils: the viscosity is 150N, and the content is 41.4%;
Group II base oils: the viscosity is 600N, and the content is 36%;
group I base oils: the viscosity is 150BS, and the content is 5.5%;
viscosity index improver: ethylene propylene rubber type with the content of 9 percent;
detergent 1: high base number (base number is larger than 265mgKOH/g) calcium salicylate, the content is 1.6%;
detergent 2: high base number (base number is more than 295mgKOH/g) calcium sulfonate, and the content is 0.5 percent;
detergent 3: calcium salicylate with medium base number (base number greater than 145mgKOH/g), content of 1.2%;
dispersant 1: the content of the polymer ashless dispersant is 2.8 percent;
antioxidant 1: zinc dialkyl dithiophosphate with the content of 1 percent;
and (2) antioxidant: 0.25 percent of alkyl diphenylamine;
and (3) antioxidant: 0.25% of phenolic antioxidant;
friction modifiers: the content of the modified nanometer lanthanum fluoride particles is 0.3 percent;
pour point depressant: polymethyl methacrylate, the content is 0.2%;
and (3) anti-foaming agent: the content of the No. 2 composite antifoaming agent is 0.002%.
Example 2
In the embodiment, the diesel engine oil is blended according to the mass fraction ratio, the viscosity grade is 10W-30, and the specific steps are as follows:
group II base oils: the viscosity is 150N, and the content is 39.7%;
group II base oils: the viscosity is 500N, and the content is 15%;
group III base oils: the viscosity is 100N, and the content is 30%;
Viscosity index improver: a polyhydrostyrene isoprene type with a content of 7%;
detergent 1: high base number calcium sulfonate (base number is more than 295mgKOH/g), the content is 2%;
detergent 2: the content of the medium-alkali calcium alkyl sulfide (the alkali value is more than 145mgKOH/g) is 1.4 percent;
dispersant 1: boronized succinimide content of 2.5%;
antioxidant 1: zinc dialkyl dithiophosphate, the content is 1.2%;
and (2) antioxidant: 0.5 percent of alkyl diphenylamine;
friction modifiers: the content of the modified nanometer lanthanum fluoride particles is 0.5 percent;
pour point depressant: polymethyl methacrylate, the content is 0.2%;
and (3) anti-foaming agent: the content of the No. 2 composite antifoaming agent is 0.002%.
Example 3
In the embodiment, the diesel engine oil is blended according to the mass fraction ratio, the viscosity grade is 20W-50, and the specific steps are as follows:
group II base oils: the viscosity is 150N, and the content is 13%;
group II base oils: the viscosity is 500N, and the content is 59.1%;
group I base oils: 150BS with the content of 10 percent;
viscosity index improver: ethylene propylene rubber type with the content of 10 percent;
detergent 1: high base number calcium salicylate (base number greater than 265mgKOH/g), content is 2.1%;
detergent 2: the content of the medium-base-value calcium salicylate (the base value is more than 160mgKOH/g) is 1.2 percent;
Dispersant 1: the content of the polymer ashless dispersant is 2.9 percent;
antioxidant 1: zinc dialkyl dithiophosphate, the content is 0.8%;
and (2) antioxidant: 0.3 percent of alkyl diphenylamine;
and (3) antioxidant: 0.3 percent of phenolic antioxidant;
friction modifiers: the content of the modified nanometer lanthanum fluoride particles is 0.1 percent;
pour point depressant: polymethyl methacrylate, the content is 0.2%;
and (3) anti-foaming agent: the content of the No. 2 composite antifoaming agent is 0.002%.
The physical and chemical indexes of the energy-saving diesel engine oil are detected by taking the example 1 as an example, and the specific results are shown in the table 1
Table 1: energy-saving diesel engine oil index test result table
Comparative fuel consumption data for example 1 and reference oil by bench test are shown in table 2:
TABLE 2 constant Fuel consumption Rate test data (unit: g/kW.h)
Wherein, the sample oil is the diesel engine oil provided by the invention, and the reference oil is the commercial shell-brand same-grade diesel engine oil.
As can be seen from Table 2, in the engine bench test, the fuel saving rate is 5.8% when the engine is operated at the engine speed of 1800 r/min; the nano particles are used as the lubricating oil additive, have good anti-wear and anti-wear effects, change the sliding friction between friction parts into rolling friction, and effectively reduce the friction coefficient, thereby reducing the fuel consumption.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A diesel engine oil, comprising:
a detergent with a mass fraction of 2 to 4%;
a dispersant, the mass fraction of which is 2 to 3%;
an antioxidant, the mass fraction of which is 0.5 to 2%;
a viscosity index improver with the mass fraction of 6 to 11 percent;
pour point depressant, its mass fraction is 0.1 to 0.4%;
a friction modifier, the mass fraction of which is 0.1 to 0.5%;
an antifoaming agent, which is 0.001 to 0.005% by mass; and
the balance being base oil.
2. The diesel engine oil according to claim 1,
the detergent comprises at least one of calcium sulfonate, sulfurized calcium alkyl phenate and calcium alkyl salicylate.
3. The diesel engine oil according to claim 1,
the dispersant comprises at least one of polyisobutylene succinimide and boronized succinimide.
4. The diesel engine oil according to claim 1,
the antioxidant comprises at least one of zinc dialkyl dithiophosphate, alkyl diphenylamine and phenolic antioxidants.
5. The diesel engine oil according to claim 1,
the viscosity index improver comprises at least one of ethylene-propylene copolymer, polymethyl methacrylate and hydrogenated styrene isoprene copolymer.
6. The diesel engine oil according to claim 1,
the friction modifier comprises modified nanometer lanthanum fluoride particles.
7. The diesel engine oil according to claim 1,
the pour point depressant is at least one of alkyl naphthalene, poly alpha-olefin and polymethyl methacrylate.
8. The diesel engine oil according to claim 1,
the anti-foaming agent is at least one of a silicon anti-foaming agent or a composite anti-foaming agent;
the base oil is at least one of solvent refined base oil and hydrofined base oil.
9. A preparation method of diesel engine oil comprises the following steps:
the diesel engine oil obtained by mixing the components of the diesel engine oil according to any one of claims 1 to 8 except the base oil, adding the mixture to the base oil at a certain temperature, and stirring the mixture.
10. The production method according to claim 9,
the stirring time is 1 to 3 hours;
the stirring method comprises mechanical stirring or pulse stirring;
the certain temperature is 55 to 65 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149846A (en) * | 2021-10-29 | 2022-03-08 | 东风商用车有限公司 | Short-mileage diesel engine lubricating oil and preparation method thereof |
| CN115678646A (en) * | 2022-08-05 | 2023-02-03 | 黎光泰富(苏州)科技有限公司 | Diesel engine oil with ultralow-temperature starting performance |
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Application publication date: 20201030 |