CN111575085A - CF grade diesel engine oil composition, preparation method and application thereof - Google Patents
CF grade diesel engine oil composition, preparation method and application thereof Download PDFInfo
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives thereof
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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
- C10M169/042—Mixtures of base-materials and additives the additives being compounds of unknown or incompletely defined constitution 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
- 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
- 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
- C10M2215/28—Amides; 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
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral 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
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
- C10M2219/089—Overbased 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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
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Abstract
The invention discloses a CF grade diesel engine oil composition, a preparation method and application thereof. Mainly solves the technical problem that the prior art has insufficient oxidation resistance and cleaning performance at high temperature. The CF grade diesel engine oil composition comprises the following components in parts by weight: 1-6 parts of a metal detergent; 1-6 parts of a dispersing agent; 0.5-2 parts of an anti-wear preservative; 0.1-3 parts of a composite antioxidant; 75-95 parts of base oil; wherein the metal detergent consists of the following components: the problems are better solved by the ultrahigh-base-number phenate with the base number of 290-310 mgKOH/g, the ultrahigh-base-number sulfonate with the base number of 380-420 mgKOH/g and the low-base-number sulfonate with the base number of 25-35 mgKOH/g, the corresponding preparation method and the application thereof in a vehicle diesel engine system. The method is suitable for industrial application of the vehicle diesel engine system.
Description
Technical Field
The invention relates to a CF grade diesel engine oil composition, a preparation method and application thereof.
Background
Nowadays, efficiency, energy conservation and environmental protection are increasingly emphasized by people, relevant regulations made by governments put higher requirements on lubricating oil, meanwhile, the technology of internal combustion engines is changing day by day, engines develop towards miniaturization, high power and high speed, the working conditions are increasingly harsh, and the requirements on the service performance of engine oil are also gradually improved. The detergent is particularly important in order to effectively prevent fuel from burning and prevent the vehicle engine oil from generating harmful substances under the working condition of use. The detergent can effectively neutralize acidic substances generated by fuel combustion and engine oil oxidation, and the generated oil sludge and solid particles are uniformly and stably dispersed in the lubricating oil through peptization and solubilization, so that the coking tendency of oxide substances on the surface of an engine is reduced, the oxidation resistance and the detergency of the diesel engine oil are improved, and the aims of slowing down the decay of the oil, maintaining the service life of the oil and preventing the corrosion of the engine are fulfilled.
For a diesel engine, due to the development of a fuel direct injection technology and the increase of engine power, old CD-grade diesel engine oil cannot meet the requirements of actual working conditions, and also cannot pass through three bench tests of piston ring area deposits, piston ring abrasion, viscosity change under a heavy-load speed change state and corrosion tests, so that the CF-grade diesel engine oil is developed to replace the CD-grade diesel engine, is not only suitable for the conventional heavy-load diesel engine, but also can be applied to direct injection, supercharging and low-emission diesel vehicles, and is wide in application. However, in the actual running process, high-temperature carbon deposit and low-temperature oil sludge are caused simultaneously when the vehicle runs at high and low speeds in a cross way, and the oxidation substances cause problems of oil circuit blockage, piston ring abrasion and the like, so that the service life of the engine oil is short and the normal operation of equipment is caused, and therefore the oxidation resistance and the detergency of the CF-grade diesel engine oil are to be improved urgently.
Chinese invention patent CN107312593A discloses a CF-grade diesel engine oil composition, and patent CN103710084A discloses a calcium-magnesium compounded CF-grade diesel engine oil composition. The simulation experiment results of the CF grade diesel engine oil composition disclosed in the patent show that the problem of insufficient oxidation resistance and detergency at high temperature still exists.
The documents of ' assessment research on HC4132UPS type diesel engine of CF-415W-40 diesel engine oil ', use performance comparison of CF-4 and CH-4 diesel engine oil on loader engine ' and ' research on use performance of domestic CF-4 and CH-4 high-grade diesel engine oil ' indicate that the oxidation resistance and detergency of the diesel engine oil still need to be further improved to enhance the use performance of the diesel engine oil, so that the diesel engine oil can better meet the requirements in practical application.
The experimental results of the literature, diesel engine oil detergency evaluation bench piston deposit formation and influence on test operation show that diesel engine oil with poor detergency has a high deposit formation tendency, and phenomena such as loss of elasticity of a piston ring, pulling damage of a cylinder surface, blow-by of a crankcase and the like occur, so that control parameters are abnormal in a bench test, and engine operation is abnormal in practical application, so that the oxidation resistance and detergency of CF-grade diesel engine oil need to be improved.
Disclosure of Invention
One of the technical problems to be solved by the invention is the technical problem that the oxidation resistance and the cleaning performance of the CF-grade diesel engine oil composition in the prior art are insufficient at high temperature, and the invention provides a novel CF-grade diesel engine oil composition which has better oxidation resistance and cleaning performance at high temperature. The second technical problem to be solved by the invention is to provide a preparation method of the CF grade diesel engine oil composition corresponding to the first technical problem. The invention solves the technical problem of providing a new application of the CF grade diesel engine oil composition corresponding to one of the technical problems.
In order to solve one of the above technical problems, the technical scheme adopted by the invention is as follows:
the CF grade diesel engine oil composition comprises the following components in parts by weight: 1-6 parts of a metal detergent; 1-6 parts of a dispersing agent; 0.5-2 parts of an anti-wear preservative; 0.1-3 parts of a composite antioxidant; 75-95 parts of base oil; wherein the metal detergent consists of the following components: ultra-high base number phenate with base number of 290-310 mgKOH/g, ultra-high base number sulfonate with base number of 380-420 mgKOH/g and low base number sulfonate with base number of 25-35 mgKOH/g.
Preferably, the dispersant is at least one selected from a succinimide dispersant, a boronized ashless dispersant or a polymeric ashless dispersant; and/or the antiwear preservative is at least one selected from the group consisting of a dialkyldithiophosphate or a dialkyldithiocarbamate; and/or the composite antioxidant is a mixture of two or more than two of amine antioxidant, phenol antioxidant, thiadiazole antioxidant or carbamate antioxidant.
In the technical scheme, the dispersing agent can be selected from T151, T161, T154A, T152 and the like, the antiwear preservative can be selected from T202, T203, T205, T323 and the like, and the composite antioxidant can be selected from T501, T512, T534, T535, T552, T536, AZ and the like.
Preferably, the base oil is at least one selected from solvent-refined mineral base oils, hydrorefined mineral base oils, polyalphaolefin synthetic oils, or polyester-based synthetic oils, such as HVI150, HVI500, II4, II6, 150 SN.
Preferably, the ratio of the ultrahigh-base-number alkyl phenate to the ultrahigh-base-number sulfonate to the low-base-number sulfonate in the metal detergent is (0.5-1.5) to (1-4) to (0.1-1) in parts by mass.
Preferably, the CF grade diesel engine oil composition further comprises, in parts by weight: 5-15 parts of a viscosity index improver; the viscosity index improver is at least one selected from polymethacrylate, ethylene-propylene copolymer or polyisobutylene.
Preferably, the CF grade diesel engine oil composition further comprises, in parts by weight: 0.1-1.0 part of pour point depressant; the pour point depressant is at least one selected from polymethacrylate, alkyl naphthalene or poly alpha-olefin.
Preferably, the CF grade diesel engine oil composition further comprises, in parts by weight: 0.001-0.2 part of an antifoaming agent; the anti-foaming agent is at least one selected from silicone oil type anti-foaming agent, non-silicone type anti-foaming agent or composite anti-foaming agent.
Preferably, the CF grade diesel engine oil composition comprises the following components in parts by weight: 3-5 parts of a metal detergent; 3-5 parts of a dispersing agent; 1-2 parts of an antiwear preservative; 0.1-1 part of a composite antioxidant; 80-91 parts of base oil.
To solve the second technical problem, the invention adopts the following technical scheme:
the preparation method of the CF grade diesel engine oil composition comprises the following steps: all the components are measured according to the required amount and added into the base oil at the temperature of 50-65 ℃, and the mixture is stirred for 0.5-5 hours to be completely dissolved, so that the CF grade diesel engine oil composition is obtained.
In order to solve the third technical problem, the technical scheme adopted by the invention is as follows:
an application of the CF grade diesel engine oil composition in a vehicle diesel engine system.
The CF grade diesel engine oil composition, the preparation method and the application thereof provided by the invention can bring the following beneficial effects:
the CF grade diesel engine oil composition is compounded by the ultra-high base number phenate with the base number of 290-310 mgKOH/g, the ultra-high base number sulfonate with the base number of 380-420 mgKOH/g and the low base number sulfonate with the base number of 25-35 mgKOH/g, so that the antioxidant and detergent properties of the CF grade diesel engine oil composition are obviously improved, the service life of an oil product is prolonged, the coking tendency of the oil product on the metal surface is reduced, and a better technical effect is achieved.
Detailed Description
[ example 1 ]
Embodiment 1 discloses a specific implementation mode of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 3 parts of T154;
anti-wear and anti-corrosion agent: 1.5 parts of T203;
compound antioxidant: 0.5 part of T512 and 0.5 part of T534;
base oil: 55.9 parts HVI150 and 34.1 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T154, T203, T512 and T534 in required amounts are added into HVI150 and HVI500 base oil at the temperature of 60 ℃ and stirred for 1.5 hours to be completely dissolved, so as to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 2 ]
Embodiment 2 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.3 parts of metal detergent;
dispersing agent: 4 parts of T154;
anti-wear and anti-corrosion agent: 1.5 parts of T203;
compound antioxidant: 0.5 part of T512 and 0.5 part of T534;
base oil: 55.9 parts HVI150 and 33.3 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T154, T203, T512 and T534 in required amounts are added into HVI150 and HVI500 base oil at the temperature of 60 ℃ and stirred for 1.5 hours to be completely dissolved, so as to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 3 ]
Embodiment 3 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 5 parts of T154;
anti-wear and anti-corrosion agent: 1.5 parts of T203;
compound antioxidant: 0.5 part of T512 and 0.5 part of T534;
base oil: 54.9 parts HVI150 and 33.1 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T154, T203, T512 and T534 in required amounts are added into HVI150 and HVI500 base oil at the temperature of 55 ℃ and stirred for 2 hours to be completely dissolved, so as to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 4 ]
Embodiment 4 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 3 parts of T154;
anti-wear and anti-corrosion agent: 1.5 parts of T203;
compound antioxidant: 0.5 part of T512 and 0.5 part of T534;
viscosity index improver: 8 parts of T614;
pour point depressant: 0.2 part T814;
and (3) anti-foaming agent: 0.01 part of T901;
base oil: 51.7 parts HVI150 and 30.1 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T154, T203, T512, T534, T614, T814 and T901 in required amounts are added to the HVI150 and HVI500 base oil at a temperature of 55 ℃ and stirred for 3 hours to be completely dissolved, so as to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 5 ]
Embodiment 5 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 3 parts T154A;
anti-wear and anti-corrosion agent: 1.5 parts of T202;
compound antioxidant: 0.3 part of T512, 03 part of T536 and 0.3 part of AZ;
base oil: 54.9 parts HVI150 and 35.2 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T154A, T203, T512, T534 and AZ in required amounts are added into HVI150 and HVI500 base oil at the temperature of 60 ℃ and stirred for 1.5 hours to be completely dissolved, so as to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 6 ]
Embodiment 6 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 3 parts of T161;
anti-wear and anti-corrosion agent: 1.5 parts T205;
compound antioxidant: 0.5 part of T501 and 0.5 part of AZ;
base oil: 55.9 parts HVI150 and 34.1 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T161, T205, T501 and AZ in required amounts are added into HVI150 and HVI500 base oil at 65 ℃ and stirred for 1.5 hours to be completely dissolved, so as to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 7 ]
Embodiment 7 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 3 parts of T151;
anti-wear and anti-corrosion agent: 1.5 parts of T202;
compound antioxidant: 0.5 parts T552, 0.5 parts T535;
base oil: 55.9 parts HVI150 and 34.1 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T151, T202, T552 and T535 in required amounts are added to the HVI150 and HVI500 base oils at a temperature of 65 ℃ and stirred for 1.5 hours to dissolve all of them, to obtain the CF grade diesel engine oil composition.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
[ example 8 ]
Embodiment 8 discloses a specific implementation manner of a CF grade diesel engine oil composition, which comprises the following components in parts by weight:
4.5 parts of metal detergent;
dispersing agent: 3 parts of T152;
anti-wear and anti-corrosion agent: 1.5 parts T205;
compound antioxidant: 0.5 part of T536, 0.5 part of T501;
base oil: 55.9 parts HVI150 and 34.1 parts HVI 500.
Wherein, the components, the corresponding parts by weight and the base number of the metal detergent are shown in the table 1, and the components and the parts by weight of the CF grade diesel engine oil composition are shown in the table 2.
The preparation method of the CF grade diesel engine oil composition of the present embodiment is specifically as follows:
the metal detergents, T152, T205, T536 and T501, in the required amounts, were added to the HVI150 and HVI500 base oils at a temperature of 65 deg.C and stirred for 1.5 hours to dissolve them all to give CF grade diesel engine oil compositions.
The metal detergent in the preparation method is prepared by mixing the components in the table 1 according to the proportion.
Comparative example 1
Similarly, in example 1, the dosage of the ultra-high base number sulfurized calcium alkyl phenate is replaced by the high base number sulfurized calcium alkyl phenate, and the base number is 250mgKOH/g, which is shown in Table 3.
Comparative example 2
Similarly [ example 1 ], except that the dosages of the ultra-high base number calcium sulfonate and the like in the formula are replaced by high base number calcium sulfonate, the base number of which is 300mgKOH/g, as shown in Table 3.
Comparative example 3
According to patent CN107312593A, the example 3 with the best antioxidant performance is selected as a comparative example, and is specifically shown in Table 3.
Comparative example 4
According to patent CN103710084A, the example 7 with the best antioxidant performance is selected as a comparative example, and is specifically shown in Table 3.
[ example 9 ]
Example 9 the CF grade diesel engine oil compositions of examples 1-8 were applied to a vehicle diesel engine system, and the CF grade diesel engine oil compositions of examples 1-8 and the oils of comparative examples 1-4 were tested, using the following specific tests:
TEOST experiment: according to ASTM D7097-06a method of thermal oxidation simulation test (TEOST MHT) for measuring moderate high temperature piston deposits of engine oil, an oxidation experiment is carried out on the CF grade diesel engine oil composition for 18-24 hours, and the test temperature is 200-400 ℃. The lower the quality of the deposit formed, the better the antioxidant performance of the CF grade diesel engine oil composition is demonstrated.
Crankcase simulation experiment: according to SH/T0300-06 & lt & gt crankcase simulation test method, a CF grade diesel engine oil composition is tested for 2-3 hours under the conditions of a plate temperature of 200-400 ℃ and an oil temperature of 100-200 ℃. The less weight gain of the coke-forming sheet, the better the detergency of the CF grade diesel engine oil composition is demonstrated.
The test data for examples 1-8 and comparative examples 1-4 obtained by the above method are shown in Table 4 below.
TABLE 1 respective Components of Metal detergents, corresponding parts by weight and base numbers
Wherein the base number of the metal detergent is determined according to SH/T0251-1993 alkali number determination method (perchloric acid potentiometry) for petroleum products.
TABLE 4 test results of examples 1 to 8 and comparative examples 1 to 4
| Item | TEOST，mg | Crankcase simulation test, mg |
| Example 1 | 13.4 | 10.8 |
| Example 2 | 15.7 | 12.1 |
| Example 3 | 16.5 | 12.4 |
| Example 4 | 13.4 | 10.7 |
| Example 5 | 17.2 | 12.9 |
| Example 6 | 16.8 | 12.5 |
| Example 7 | 17.1 | 12.5 |
| Example 8 | 16.9 | 12.6 |
| Comparative example 1 | 20.4 | 19.5 |
| Comparative example 2 | 23.2 | 25.6 |
| Comparative example 3 | 25.4 | 18.6 |
| Comparative example 4 | 31.5 | 39.3 |
As can be seen by comparing the data in Table 4, the sediment quality of TEOST tests of examples 1-8 is less than that of comparative examples 1-4, and the coke forming plate weight gain of crankcase simulation tests of examples 1-8 is less than that of comparative examples 1-4, so that the cleaning performance and the oxidation resistance of the invention are better.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The CF grade diesel engine oil composition comprises the following components in parts by weight:
1-6 parts of a metal detergent;
1-6 parts of a dispersing agent;
0.5-2 parts of an anti-wear preservative;
0.1-3 parts of a composite antioxidant;
75-95 parts of base oil;
wherein the metal detergent consists of the following components: ultra-high base number phenate with base number of 290-310 mgKOH/g, ultra-high base number sulfonate with base number of 380-420 mgKOH/g and low base number sulfonate with base number of 25-35 mgKOH/g.
2. The CF grade diesel engine oil composition according to claim 1, characterized in that:
the dispersant is at least one selected from a succinimide dispersant, a boronized ashless dispersant or a high molecular ashless dispersant;
and/or
The antiwear preservative is at least one selected from the group consisting of a dialkyldithiophosphate or a dialkyldithiocarbamate;
and/or
The composite antioxidant is a mixture of two or more than two of amine antioxidant, phenol antioxidant, thiadiazole antioxidant or carbamate antioxidant.
3. The CF grade diesel engine oil composition according to claim 1, characterized in that:
the base oil is at least one selected from solvent refined mineral base oil, hydrofined mineral base oil, poly alpha-olefin synthetic oil or polyester synthetic oil.
4. The CF grade diesel engine oil composition according to claim 1, characterized in that:
the ratio of the ultrahigh-base-number alkyl phenate to the ultrahigh-base-number sulfonate to the low-base-number sulfonate in the metal detergent is (0.5-1.5): (1-4): (0.1 to 1).
5. The CF grade diesel engine oil composition of claim 1, further comprising, in parts by weight:
5-15 parts of a viscosity index improver;
the viscosity index improver is at least one selected from polymethacrylate, ethylene-propylene copolymer or polyisobutylene.
6. The CF grade diesel engine oil composition of claim 1, further comprising, in parts by weight:
0.1-1.0 part of pour point depressant;
the pour point depressant is at least one selected from polymethacrylate, alkyl naphthalene or poly alpha-olefin.
7. The CF grade diesel engine oil composition of claim 1, further comprising, in parts by weight:
0.001-0.2 part of an antifoaming agent;
the anti-foaming agent is at least one selected from silicone oil type anti-foaming agent, non-silicone type anti-foaming agent or composite anti-foaming agent.
8. The CF grade diesel engine oil composition according to claim 1, comprising the following components in parts by weight:
3-5 parts of a metal detergent;
3-5 parts of a dispersing agent;
1-2 parts of an antiwear preservative;
0.1-1 part of a composite antioxidant;
80-91 parts of base oil.
9. A method of making the CF grade diesel engine oil composition of claim 1, comprising the steps of:
all the components are measured according to the required amount and added into the base oil at the temperature of 50-65 ℃, and the mixture is stirred for 0.5-5 hours to be completely dissolved, so that the CF grade diesel engine oil composition is obtained.
10. Use of the CF grade diesel engine oil composition of claim 1 in a vehicular diesel engine system.
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| CN202010464732.1A CN111575085A (en) | 2020-05-27 | 2020-05-27 | CF grade diesel engine oil composition, preparation method and application thereof |
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| CN115505446A (en) * | 2021-06-23 | 2022-12-23 | 中国石油化工股份有限公司 | CI-level diesel engine oil composition and preparation method and application thereof |
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