CN113637519A - Marine medium-speed cylindrical piston diesel engine lubricating oil - Google Patents
Marine medium-speed cylindrical piston diesel engine lubricating oil Download PDFInfo
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- CN113637519A CN113637519A CN202110924839.4A CN202110924839A CN113637519A CN 113637519 A CN113637519 A CN 113637519A CN 202110924839 A CN202110924839 A CN 202110924839A CN 113637519 A CN113637519 A CN 113637519A
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- diesel engine
- lubricating oil
- engine lubricating
- oil
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 24
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 34
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 33
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002199 base oil Substances 0.000 claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 239000003599 detergent Substances 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229960002317 succinimide Drugs 0.000 claims abstract description 16
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000005069 Extreme pressure additive Substances 0.000 claims abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 11
- 239000011701 zinc Substances 0.000 claims abstract description 11
- 229910052791 calcium Inorganic materials 0.000 claims description 32
- 239000011575 calcium Substances 0.000 claims description 32
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 31
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 22
- NKFIBMOQAPEKNZ-UHFFFAOYSA-N 5-amino-1h-indole-2-carboxylic acid Chemical compound NC1=CC=C2NC(C(O)=O)=CC2=C1 NKFIBMOQAPEKNZ-UHFFFAOYSA-N 0.000 claims description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 15
- 229910052749 magnesium Inorganic materials 0.000 claims description 15
- 239000011777 magnesium Substances 0.000 claims description 15
- 239000002585 base Substances 0.000 claims description 12
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 11
- 239000002518 antifoaming agent Substances 0.000 claims description 11
- 239000004032 superbase Substances 0.000 claims description 11
- 150000007525 superbases Chemical class 0.000 claims description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 10
- 150000001412 amines Chemical class 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 10
- -1 phenolic ester Chemical class 0.000 claims description 10
- 229920000570 polyether Polymers 0.000 claims description 10
- 229920002545 silicone oil Polymers 0.000 claims description 10
- 230000002194 synthesizing effect Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 239000004088 foaming agent Substances 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 18
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000005984 hydrogenation reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010705 motor oil Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000010710 diesel engine oil Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010759 marine diesel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/16—Naphthenic acids
-
- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
-
- 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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing 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
- 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—Overbased sulfonic acid salts
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention relates to the technical field of lubricating oil, in particular to marine medium-speed cylindrical piston diesel engine lubricating oil. The marine medium-speed cylindrical piston diesel engine lubricating oil comprises the following raw materials: 80-88% of base oil, 5-9% of composite metal detergent, 0.2-1% of low-nitrogen polyisobutylene succinimide dispersant, 0.1-1% of pour point depressant, 0.5-2% of antioxidant, 3-5% of OCP viscosity index improver, 1-5% of phosphorus-nitrogen anti-wear extreme pressure additive and 1-5% of zinc dialkyl dithiophosphate. The product is refined by adopting deep hydrogenation base oil through a scientific formula and an advanced production process, the oxidation resistance and the stability of the oil product are greatly improved, the oil change period of the product can be greatly prolonged, the consumption of resources can be effectively reduced, the use cost is reduced, and the cost performance is higher.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to marine medium-speed cylindrical piston diesel engine lubricating oil.
Background
The medium-speed cylindrical piston diesel engine is a medium-speed engine for short, the rotating speed of the medium-speed cylindrical piston diesel engine is generally 300-1000 r/min, the cylinder diameter is 200-620 mm, and the output power is 103-1800 brake horsepower. Because of its compact structure, high specific power of unit volume and weight and convenient operation, it is mainly used in medium and small ship main engine or large ship auxiliary engine, and its cylinder, valve system and bearing bush share one kind of lubricating oil, called medium-speed engine oil for short. As an excellent medium speed engine oil for ships, the oil has good acid neutralization capacity, high-temperature cleaning and dispersing property, thermal oxidation stability, water separating property, wear resistance, corrosion resistance and other properties. The medium speed engine oil for ocean-going ships in China previously mainly depends on imported or compounded by using imported compounding agents, and most of offshore and river ships use land-based diesel engine oil.
Most of land diesel engine oil is high-sulfur non-standard marine diesel oil, and has the following defects:
(1) the service life is short; most of the I-type base oil and ZDDP antioxidants are adopted, so that the engine oil has poor oxidation resistance and is easy to oxidize and deteriorate, the service life of the engine oil is short, and the engine oil is generally replaced by new oil after being added with oil for half a month.
(2) The engine is seriously worn; the oil product has poor cleaning and dispersing properties, and a large amount of carbon deposit and coke are formed, so that the particle abrasion is aggravated. The lubricating ability is reduced rapidly, and the engine is worn seriously.
(3) The overhaul period is short; rapid wear of the engine. Resulting in a shortened overhaul period and increased engine maintenance and shutdown costs.
(4) The consumption of engine oil and fuel oil is large; the poor oxidation resistance of the oil product leads to the rapid increase of the viscosity of the oil product, so that the power required for keeping the normal circulation of the engine oil is increased, and finally the fuel consumption is large. Meanwhile, the consumption of the engine oil is increased due to the short oil change period.
(5) Poor low temperature performance; at present, medium-speed cylinder piston diesel engine oil at home and abroad adopts single-grade oil, and the lowest temperature of normal use is 10 ℃. In winter, the temperature of most areas is about 0-20 ℃, and the temperature of some areas can reach-30 ℃, so that the current marine medium-speed cylindrical piston diesel engine oil is difficult to operate (some oil needs to be added after being preheated) when used in winter. And after a period of time of stopping and landing in winter, restarting is extremely difficult.
Disclosure of Invention
In order to solve the problems of the medium-speed engine oil, the marine medium-speed cylindrical piston diesel engine lubricating oil provided by the invention has the remarkable advantages of long service life, engine oil and fuel consumption saving, excellent low-temperature service performance, low use cost and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the marine medium-speed cylindrical piston diesel engine lubricating oil comprises the following raw materials: 80-88% of base oil, 5-9% of composite metal detergent, 0.2-1% of low-nitrogen polyisobutylene succinimide dispersant, 0.1-1% of pour point depressant, 0.5-2% of antioxidant, 3-5% of OCP viscosity index improver, 1-5% of phosphorus-nitrogen anti-wear extreme pressure additive and 1-5% of zinc dialkyl dithiophosphate.
Preferably, the base oil comprises one or more of Taiwan plastic 500N, medium petroleum type II hydrogenated base oil and medium petrochemical type II hydrogenated base oil.
Preferably, the composite metal detergent is prepared from the following raw materials in parts by weight:
a. synthesizing calcium sulfonate with high base number;
b. synthesizing magnesium sulfonate with super base number;
c. calcium alkyl phenate sulfide;
d. calcium naphthenate;
wherein a and b are 3-5: 1; (a + b): c is 1: 1-5; (a + b + c): d is 2-5: 1.
the TBN of the composite metal detergent is more than or equal to 280mgKOH/g, the high-base-number synthetic calcium sulfonate is T106, the high-base-number synthetic calcium sulfonate is more than or equal to 395mgKOH/g, the super-base-number synthetic magnesium sulfonate is T107, the super-base-number synthetic magnesium sulfonate is more than or equal to 390mgKOH/g, the calcium alkylphenol sulfide is T115B, the TBN of the calcium alkylphenol sulfide is more than or equal to 250mgKOH/g, the calcium naphthenate is T109, and the TBN of the calcium naphthenate is more than or equal to 150 mgKOH/g.
Preferably, the low-nitrogen polyisobutylene succinimide dispersant adopts T155, and the nitrogen content of the low-nitrogen polyisobutylene succinimide dispersant is less than or equal to 1 percent.
The silicone oil anti-foaming agent is optimized to further comprise a silicone oil anti-foaming agent T901, the antioxidant comprises a phenolic ester antioxidant T512 and an amine antioxidant T534, wherein the content of the phenolic ester antioxidant is 0.2-1%, and the content of the amine antioxidant is 0.3-1%.
As optimization, the kinematic viscosity of the OCP viscosity index improver at 100 ℃ is 1000-1600mm2And/s, SSI is 0-25%.
As optimization, the phosphorus-nitrogen anti-wear extreme pressure additive adopts T308, the zinc dialkyl dithiophosphate adopts T203, the pour point depressant adopts Infineum V382, and the finger-bonding agent adopts Infineum V261.
Heating the base oil to 60-80 ℃, adding a proper amount of defoaming agent, pour point depressant and demulsifier in sequence, and uniformly blending the rest raw materials and the base oil in a short time through a pulse stirring continuous blending process.
The beneficial effect of this scheme is: the marine medium-speed trunk piston diesel engine lubricating oil has the following benefits:
(1) the base oil adopts 500N of Taiwan plastic or medium petroleum oil, and the second class hydrogenated oil of medium petrochemical, so that the stability is high;
(2) the service life of the engine oil is longer, and the service life of the engine oil is about 1 time longer than that of the engine oil in the prior art;
(3) the low ash content adopts the synergistic effect of a plurality of cleaning dispersants, particularly the addition of magnesium salt, greatly reduces the ash content of the product, remarkably reduces the generation of carbon deposit and coke quality, and effectively improves the demulsification capability of the oil product;
(4) the use of the polyether compound greatly improves the lubricating total energy, the cleaning dispersion total energy and the demulsification performance of the oil product;
(5) the use of the V382 pour point depressant has low dosage and good effect, so that the product has excellent use performance, is universal in winter and summer and easy to restart, and the finger-sticking agent adopts V261, so that the finger-sticking agent has good low-temperature fluidity and is sensitive to the pour point depressant;
in conclusion, the product is refined by adopting the deep hydrogenation base oil through a scientific formula and an advanced production process, the oxidation resistance and the stability of the oil product are greatly improved, the oil change period of the product can be greatly prolonged, the resource consumption can be effectively reduced, the use cost is reduced, and the cost performance is higher.
Detailed Description
Example 1:
the marine medium-speed cylindrical piston diesel engine lubricating oil comprises the following raw materials: 81% of base oil, 5% of composite metal detergent, 1% of low-nitrogen polyisobutylene succinimide dispersant, 1% of pour point depressant, 2% of antioxidant, 4% of OCP viscosity index improver, 1.95% of phosphorus-nitrogen antiwear extreme pressure additive and 4.1% of zinc dialkyl dithiophosphate.
The base oil comprises 500N of plastic.
The composite metal detergent is prepared from the following raw materials in parts by weight:
a. synthesizing calcium sulfonate with high base number;
b. synthesizing magnesium sulfonate with super base number;
c. calcium alkyl phenate sulfide;
d. calcium naphthenate;
wherein a: b is 5: 1; (a + b): c is 1: 5; (a + b + c): d is 5: 1.
the TBN of the composite metal detergent is 310mgKOH/g, the high-base number synthetic calcium sulfonate is T106, the high-base number synthetic calcium sulfonate is 420mgKOH/g, the super-base number synthetic magnesium sulfonate is T107, the super-base number synthetic magnesium sulfonate is 510mgKOH/g, the sulfurized calcium alkyl phenate is T115B, the sulfurized calcium alkyl phenate TBN is 270mgKOH/g, the calcium naphthenate is T109, and the calcium naphthenate TBN is 165 mgKOH/g.
The low-nitrogen polyisobutylene succinimide dispersant adopts T155, and the nitrogen content of the low-nitrogen polyisobutylene succinimide dispersant is 0.65 percent.
The foaming agent also comprises a silicone oil anti-foaming agent T901 and a polyether compound DL32, wherein the content of the silicone oil anti-foaming agent is 25ppm, and the content of the polyether compound is 0.05%.
The antioxidant comprises a phenolic ester antioxidant T512 and an amine antioxidant T534, wherein the content of the phenolic ester antioxidant is 1%, and the content of the amine antioxidant is 1%.
The kinematic viscosity of the OCP viscosity index improver at 100 ℃ is 1600mm2The SSI was 17%.
The phosphorus-nitrogen anti-wear extreme pressure additive adopts T308, the zinc dialkyl dithiophosphate adopts T203, the pour point depressant adopts InfineumV382, and the finger-sticking agent adopts InfineumV 261.
Example 2:
the marine medium-speed cylindrical piston diesel engine lubricating oil comprises the following raw materials: 85% of base oil, 8% of composite metal detergent, 0.2% of low-nitrogen polyisobutylene succinimide dispersant, 0.3% of pour point depressant, 0.5% of antioxidant, 3% of OCP viscosity index improver, 1% of phosphorus-nitrogen anti-wear extreme pressure additive and 1% of zinc dialkyl dithiophosphate.
The base oil comprises one or more of Tai plastic 500N and second-class hydrogenated base oil.
The composite metal detergent is prepared from the following raw materials in parts by weight:
a. synthesizing calcium sulfonate with high base number;
b. synthesizing magnesium sulfonate with super base number;
c. calcium alkyl phenate sulfide;
d. calcium naphthenate;
wherein a: b is 3: 1; (a + b): c is 1: 1; (a + b + c): d is 2: 1.
the TBN of the composite metal detergent is 285mgKOH/g, the high-base number synthetic calcium sulfonate is T106, the high-base number synthetic calcium sulfonate is 405mgKOH/g, the super-base number synthetic magnesium sulfonate is T107, the super-base number synthetic magnesium sulfonate is 455mgKOH/g, the calcium alkylphenol sulfide is T115B, the calcium alkylphenol sulfide TBN is 275mgKOH/g, the calcium naphthenate is T109, and the calcium naphthenate TBN is 160 mgKOH/g.
The low-nitrogen polyisobutylene succinimide dispersant adopts T155, and the nitrogen content of the low-nitrogen polyisobutylene succinimide dispersant is 0.2 percent.
The foaming agent also comprises a silicone oil anti-foaming agent T901 and a polyether compound DL32, wherein the silicone oil anti-foaming agent content is 10ppm, and the polyether compound content is 0.02%.
The antioxidant comprises a phenolic ester antioxidant T512 and an amine antioxidant T534, wherein the content of the phenolic ester antioxidant is 0.2%, and the content of the amine antioxidant is 0.3%.
The kinematic viscosity of the OCP viscosity index improver at 100 ℃ is 1600mm2The SSI was 17%.
The phosphorus-nitrogen anti-wear extreme pressure additive adopts T308, the zinc dialkyl dithiophosphate adopts T203, the pour point depressant adopts InfineumV382, and the finger-sticking agent adopts InfineumV 261.
Example 3:
the marine medium-speed cylindrical piston diesel engine lubricating oil comprises the following raw materials: 83% of base oil, 7% of composite metal detergent, 0.5% of low-nitrogen polyisobutylene succinimide dispersant, 0.5% of pour point depressant, 1% of antioxidant, 4% of OCP viscosity index improver, 2% of phosphorus-nitrogen anti-wear extreme pressure additive and 1.97% of zinc dialkyl dithiophosphate.
The base oil comprises one or more of Tai plastic 500N and second-class hydrogenated base oil.
The composite metal detergent is prepared from the following raw materials in parts by weight:
a. synthesizing calcium sulfonate with high base number;
b. synthesizing magnesium sulfonate with super base number;
c. calcium alkyl phenate sulfide;
d. calcium naphthenate;
wherein a: b is 4: 1; (a + b): c is 1: 3; (a + b + c): d is 4: 1.
the TBN of the composite metal detergent is 285KOH/g, the high-base number synthetic calcium sulfonate is T106, the high-base number synthetic calcium sulfonate is 415mgKOH/g, the super-base number synthetic magnesium sulfonate is T107, the super-base number synthetic magnesium sulfonate is 422mgKOH/g, the sulfurized calcium alkyl phenate is T115B, the sulfurized calcium alkyl phenate TBN is 275mgKOH/g, the calcium naphthenate is T109, and the calcium naphthenate TBN is 165 mgKOH/g.
The low-nitrogen polyisobutylene succinimide dispersant adopts T155, and the nitrogen content of the low-nitrogen polyisobutylene succinimide dispersant is 0.7 percent.
The foaming agent also comprises a silicone oil anti-foaming agent T901 and a polyether compound DL32, wherein the content of the silicone oil anti-foaming agent is 25ppm, and the content of the polyether compound is 0.03%.
The antioxidant comprises a phenolic ester antioxidant T512 and an amine antioxidant T534, wherein the content of the phenolic ester antioxidant is 0.5 percent, and the content of the amine antioxidant is 0.5 percent.
The kinematic viscosity of the OCP viscosity index improver at 100 ℃ is 1600mm2The SSI was 17%.
The phosphorus-nitrogen anti-wear extreme pressure additive adopts T308, the zinc dialkyl dithiophosphate adopts T203, the pour point depressant adopts InfineumV382, and the finger-sticking agent adopts InfineumV 261.
Comparative example 1:
the base oil is I type base oil, the antioxidant is ZDDP type antioxidant, and other conditions are the same as example 1.
Comparative example 2:
the detergent selects high-base-number synthetic calcium sulfonate, sulfurized calcium alkyl phenate and calcium naphthenate; the rest is the same as in example 1.
Comparative example 3:
the conditions were the same as in example 1 except that no polyether compound was added.
Table 1:
| detecting items | Index (I) | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Kinematic viscosity at 40 ℃ in mm2/s | 138.56 | 144.72 | 145.36 | 141.7 | 141.0 | 158.05 | 151.12 |
| Kinematic viscosity at 100 ℃ in mm2/s | 15.41 | 16.22 | 16.01 | 15.9 | 14.6 | 15.3 | 15.22 |
| Viscosity index | 115 | 119 | 116 | 118 | 103 | 98 | 102 |
| Open flash point,. deg.C | 255 | 258 | 261 | 257 | 248 | 251 | 245 |
| Pour point, DEG C | -34 | -36 | -25 | -31 | -30 | -22 | -28 |
| Total base number, mgKOH/g | 16.52 | 17.28 | 15.11 | 16.36 | 15.58 | 14.07 | 14.38 |
Therefore, the medium speed engine oil has the excellent performances of high stability, long service life, low ash content, total lubricating energy, total cleaning and dispersing energy, demulsification performance, easiness in restarting and the like.
In conclusion, the product is refined by adopting the deep hydrogenation base oil through a scientific formula and an advanced production process, the oxidation resistance of the oil product is greatly improved, the oil change period of the product can be greatly prolonged, the resource consumption can be effectively reduced, the use cost is reduced, and the cost performance is higher.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any marine medium-speed trunk piston diesel engine lubricating oil according to the claims of the present invention and any suitable changes or modifications thereof by those of ordinary skill in the art shall fall within the protection scope of the present invention.
Claims (9)
1. The marine medium-speed cylindrical piston diesel engine lubricating oil is characterized in that: comprises the following raw materials: 80-88% of base oil, 5-9% of composite metal detergent, 0.2-1% of low-nitrogen polyisobutylene succinimide dispersant, 0.1-1% of pour point depressant, 0.5-2% of antioxidant, 3-5% of OCP viscosity index improver, 1-5% of phosphorus-nitrogen anti-wear extreme pressure additive and 1-5% of zinc dialkyl dithiophosphate.
2. The marine medium speed trunk piston diesel engine lubricating oil according to claim 1, characterized in that: the base oil comprises one or more of Taiwan plastic 500N, medium petroleum type II hydrogenated base oil and medium petrochemical type II hydrogenated base oil.
3. The marine medium speed trunk piston diesel engine lubricating oil according to claim 2, characterized in that: the composite metal detergent is prepared from the following raw materials in parts by weight:
a. synthesizing calcium sulfonate with high base number;
b. synthesizing magnesium sulfonate with super base number;
c. calcium alkyl phenate sulfide;
d. calcium naphthenate;
wherein a and b are 3-5: 1; (a + b): c is 1: 1-5; (a + b + c): d is 2-5: 1.
4. the marine medium speed trunk piston diesel engine lubricating oil according to claim 3, characterized in that: the TBN of the composite metal detergent is more than or equal to 280mgKOH/g, the high-base-number synthetic calcium sulfonate is T106, the high-base-number synthetic calcium sulfonate is more than or equal to 395mgKOH/g, the super-base-number synthetic magnesium sulfonate is T107, the super-base-number synthetic magnesium sulfonate is more than or equal to 390mgKOH/g, the calcium alkylphenol sulfide is T115B, the TBN of the calcium alkylphenol sulfide is more than or equal to 250mgKOH/g, the calcium naphthenate is T109, and the TBN of the calcium naphthenate is more than or equal to 150 mgKOH/g.
5. The marine medium speed trunk piston diesel engine lubricating oil according to claim 4, characterized in that: the low-nitrogen polyisobutylene succinimide dispersant adopts T155, and the nitrogen content of the low-nitrogen polyisobutylene succinimide dispersant is less than or equal to 1 percent.
6. The marine medium speed trunk piston diesel engine lubricating oil according to claim 5, characterized in that: the foaming agent also comprises a silicone oil anti-foaming agent T901 and a polyether compound DL32, wherein the content of the silicone oil anti-foaming agent is 1-50ppm, and the content of the polyether compound is 0.02-0.05%.
7. The marine medium speed trunk piston diesel engine lubricating oil according to claim 6, characterized in that: the antioxidant comprises a phenolic ester antioxidant T512 and an amine antioxidant T534, wherein the content of the phenolic ester antioxidant is 0.2-1%, and the content of the amine antioxidant is 0.3-1%.
8. The marine medium speed trunk piston diesel engine lubricating oil according to claim 7, characterized in that: the kinematic viscosity of the OCP viscosity index improver at 100 ℃ is 1000-1600mm2And/s, SSI is 0-25%.
9. The marine medium speed trunk piston diesel engine lubricating oil according to claim 8, characterized in that: the phosphorus-nitrogen anti-wear extreme pressure additive adopts T308, the zinc dialkyl dithiophosphate adopts T203, the pour point depressant adopts Infineum V382, and the finger-sticking agent adopts Infineum V261.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110924839.4A CN113637519A (en) | 2021-08-12 | 2021-08-12 | Marine medium-speed cylindrical piston diesel engine lubricating oil |
| ZA2022/08065A ZA202208065B (en) | 2021-08-12 | 2022-07-20 | Lubricating oil for marine medium-speed trunk-piston diesel engines |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110924839.4A CN113637519A (en) | 2021-08-12 | 2021-08-12 | Marine medium-speed cylindrical piston diesel engine lubricating oil |
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| CN113637519A true CN113637519A (en) | 2021-11-12 |
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| CN202110924839.4A Pending CN113637519A (en) | 2021-08-12 | 2021-08-12 | Marine medium-speed cylindrical piston diesel engine lubricating oil |
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| ZA202208065B (en) | 2022-11-30 |
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