CN103509634A - Engine lubricating oil composition using methanol or methanol gasoline as fuel - Google Patents
Engine lubricating oil composition using methanol or methanol gasoline as fuel Download PDFInfo
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- CN103509634A CN103509634A CN201210212519.7A CN201210212519A CN103509634A CN 103509634 A CN103509634 A CN 103509634A CN 201210212519 A CN201210212519 A CN 201210212519A CN 103509634 A CN103509634 A CN 103509634A
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 239000000203 mixture Substances 0.000 title claims abstract description 66
- 239000003502 gasoline Substances 0.000 title claims abstract description 39
- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 239000010687 lubricating oil Substances 0.000 title abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000002199 base oil Substances 0.000 claims abstract description 10
- 239000003599 detergent Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 7
- 239000010705 motor oil Substances 0.000 claims description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 229920002367 Polyisobutene Polymers 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- QDCPNGVVOWVKJG-VAWYXSNFSA-N 2-[(e)-dodec-1-enyl]butanedioic acid Chemical compound CCCCCCCCCC\C=C\C(C(O)=O)CC(O)=O QDCPNGVVOWVKJG-VAWYXSNFSA-N 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 2
- 239000004166 Lanolin Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 229940039717 lanolin Drugs 0.000 claims description 2
- 235000019388 lanolin Nutrition 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920000193 polymethacrylate Polymers 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 229960002317 succinimide Drugs 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 9
- 239000003513 alkali Substances 0.000 abstract description 9
- 239000003963 antioxidant agent Substances 0.000 abstract description 7
- 230000003078 antioxidant effect Effects 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000006386 neutralization reaction Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000013556 antirust agent Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 40
- 238000012360 testing method Methods 0.000 description 33
- 239000002585 base Substances 0.000 description 22
- 239000010711 gasoline engine oil Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 8
- 235000006708 antioxidants Nutrition 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000010721 machine oil Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- -1 succimide Chemical compound 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000010700 blended lubricating oil Substances 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000003808 methanol extraction Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The engine lubricating oil composition can be used for engine lubrication with methanol or methanol gasoline as fuel, the prepared lubricating oil composition product can better solve the problems of corrosion and abrasion of a methanol gasoline engine, has excellent acid neutralization performance, excellent alkali retention performance, good abrasion resistance, detergent dispersibility and oxidation resistance, and can meet the lubricating requirements of the methanol gasoline engine. The lubricating oil can be suitable for the lubricating requirements of methanol gasoline (M5-M100) engines with any mixture ratio. The lubricating oil composition of the present invention comprises at least one metal detergent, an ashless dispersant, an antioxidant, anti-corrosion and anti-wear agent, a viscosity index improver, a pour point depressant, an antirust agent, an anti-foaming agent and a base oil.
Description
Technical field
The invention belongs to technical field of lubricating oil, be specifically related to a kind of engine oil composition that methyl alcohol or methanol gasoline are fuel that uses.
Background technology
For alleviating oil fuel shortage present situation and improving serious problem of environmental pollution, widen the adaptability of engine to pluralities of fuel, change fuel structure, for the few oily energy structure feature of the rich coal of China, develop coal-based methyl alcohol flexible fuel, the important component part of reduction to the automobile-used energy diversification strategy of dependence ，Shi China of oil.China in Shanxi, the ground such as Shandong, Yunnan, Sichuan carried out the experimental study of methanol fuel replacing gasoline and obtained good economic benefit and environmental benefit.
The Department of Science and Technology is the content using methyl alcohol flexible fuel as national medium-to long-range program for scientific and technological development strategic research; And set up specially country's " 15 " Eleventh Five-Year Plan tackling of key scientific and technical problems cleaning vehicle gordian technique to research and develop and Demonstration Application project " methanol fuel automobile M85-M100 demonstration project ".
Methanol gasoline with regular unleaded make a big difference, methanol gasoline also has certain difference with regular gasoline on products of combustion, so can have a certain impact to engine oil.It has been generally acknowledged that and use methanol gasoline to have the major effect of engine oil:
First, especially high the mixing of methanol gasoline burnt than methanol gasoline M 85, M100, has certain water-absorbent; Compare gasoline, methyl alcohol each carbon atom that burns almost will produce the water of 2 times, thereby compares petrol engine oil, in methanol-fueled engine lubricating oil, can sneak into more water.
The second, use the Lubricating Oil temperature rise amplitude of methanol fuel larger.The use M85 such as Schwartz and gasoline as fuel have carried out driving simultaneous test, find in identical situation, the medial temperature of M85 engine oil exceeds about 10 degree than petrol engine oil temperature, and the rising of temperature makes M85 engine lubrication oil viscosity compared with the large leap ahead of petrol engine lubricating oil viscosity.
The 3rd, the vaporization heat of methyl alcohol is higher than regular gasoline, and volatile ratio is more difficult, more easily penetrates in lubricating oil.The use M85 such as Schwartz and gasoline as fuel have carried out driving simultaneous test, find that the oil fuel in M85 engine oil (methyl alcohol and gasoline) content is approximately petrolic 2 times in the stroke of initial 100Km.The infiltration of methyl alcohol, on the one hand, can dilute lubricating oil have reduced the viscosity of oil product; On the other hand, the methanol extraction that lubricating oil additive can be infiltrated, makes lubricating oil rotten deterioration rapidly, then by methyl alcohol, transfers to initial zone of action again and makes in addition cylinder wall upper area produce wearing and tearing.
The 4th, compare regular gasoline, in Alcohol engines machine oil, can form more pentane insolubles, pollutent in machine oil (alcohol, gasoline, water) will start to form white greasy filth while being increased to a certain degree, and white greasy filth increases along with the increase of pollutent.
Therefore,, when engine uses methanol gasoline, require lubricating oil should there is good base number hold facility, corrosion inhibition ability and abrasion resistance.At present, use regular gasoline machine oil product can not adapt to the engine lubrication that methanol gasoline is fuel.
For guaranteeing that methanol gasoline engine runs well, lower frictional wear and longer work-ing life, corresponding engine oil should have the good lubricated and effect of resistance to wearing, and the compositions of additives the present invention relates to possesses the desired feature of above methanol gasoline engine.
Chinese patent CN-101602975A, take mineral oil or synthetic oil as base oil, take high base number salicylate, succimide, zinc dialkyl dithiophosphate and auxiliary anticorrosion agent be additive, concocts a kind of all-methanol engine lubricating oil product.
Chinese patent CN-101358155A, take metal detergent, ashless dispersant, oxidation and corrosion inhibitor, auxiliary antioxidant, glycol ester, methyl-silicone oil, base oil, oil residues is raw material, blended lubricating oil and 15W/40SG level gasoline engine lubricant oil have carried out contrast test, the lubricants performance of inventing is better than 15W/40SG level gasoline engine lubricant oil, have anti-oxidant, anti-nitrated, resistance to wear, the advantage such as alkali retention is good, can reduce carbon on engine.
Chinese patent CN-101705144A, take metal detergent, ashless dispersant, antioxidant preservative, high-temperature antioxidant, viscosity index improver, oiliness improver, kilfoam, metal antirusting agent, extruding metal anti-wear agent, pour point depressant is raw material, the lubricating oil of blending plays wear-resistant, rust inhibition to engine, avoids methyl alcohol to the extraction of lubricating oil active principle and emulsification.
But prior art all awaits further improving and optimizing in wear Characteristics, base number retentivity and the mechanical properties of lubricating oil.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and has in good acid and performance and excellent alkali retention, the lubricating oil composition for methanol gasoline engine of good abrasion resistance, detergent-dispersant performance and oxidation-resistance.
The lubricating oil composition the present invention relates to is comprised of following component:
Metal detergent, that base number is the mixture of the mixture of 180 ~ 350 synthetic sulfonic acid magnesium and the base number calcium alkylbenzenesulfonate that is 10 ~ 40 and the base number alkylphenol calcium that is 180 ~ 350 or calcium alkylbenzenesulfonate that base number is 180 ~ 350 and the base number calcium alkylbenzenesulfonate that is 10 ~ 40 and the base number alkylphenol calcium that is 180 ~ 350, and in mixture in order the quality proportioning of each component be 3:1:3.For the 6.6-8.0% of lubricant compositions gross weight, its preferred optimum range is 6.6-7.8%.
Ashless dispersant is polyisobutene mono butonediimide, polyisobutylene-bis-succinimide, high molecular weight polyisobutylene succimide or wherein both or three's mixture wherein.Account for the 7.0-10.0% of composition total weight, its preferred optimum range is 7.5-9.0%.
The anti-rotten anti-wear agent of antioxygen is the mixture that 1.6-2.0% zinc dialkyl dithiophosphate and 1.2-1.5% alkyl diphenylamine form by quality percentage composition.The anti-rotten anti-wear agent of antioxygen accounts for the 2.8-3.5% of composition total weight, and its preferred optimum range is 3.0-3.5%.
Viscosity index improver is polyisobutene or ethylene-propylene copolymer or hydrogenated styrene isoprene copolymer or above both compositions arbitrarily.Account for the 1.5-6.0% of composition total weight, its preferred optimum range is 1.8-5.5%.
Pour point depressant can be alkylnaphthalene type or poly-a alkene or polymethacrylate or both mixtures.Account for the 0.1-0.5% of composition total weight, its preferred optimum range is 0.2-0.5%.
Rust-preventive agent can be benzotriazole or dodecenylsuccinic acid or lanolin magnesium soap or both mixtures.Account for the 0.8-2.0% of composition total weight,, its preferred optimum range is 1.0-1.8%.
Kilfoam can be methyl-silicone oil or polyethers or amides or both mixtures.Account for the 0.001-0.01% of composition total weight,, its preferred optimum range is 0.003-0.005%.
Base oil can be solvent treatment, hydrofining or both mixtures.Account for the 75.0-90.0% of composition total weight, its preferred optimum range is 80.0-90.0%.
The present invention is the compatibleness of utilizing dissimilar purification agent, dispersion agent, oxidation inhibitor and anti-wear agent, and by adjusting the proportioning content of each component, make the properties of composition reach best, product has in good acid and performance and excellent alkali retention, particularly there is excellent wear resistance, can effectively suppress the corrosive wear of methanol gasoline engine metal parts; For methanol gasoline engine provides sufficient lubrication protection.
Lubricating oil composition of the present invention, has carried out bench testing according to country and industry standard.And simulation comparison test and 12000Km M100 methanol gasoline engine road travel simultaneous test have been carried out with common SJ gasoline engine oil.Engine rig test shows, lubricating oil composition product of the present invention reaches GB 11121SJ gasoline engine oil standard; Simulation comparison test shows, lubricating oil composition of the present invention has better acid neutralization capacity and base number retentivity; 12000Km road travel simultaneous test shows, lubricating oil composition of the present invention has better acid neutralization capacity and base number retentivity; There is good wear Characteristics, reduce friction and wear, improve mechanical property.
accompanying drawing explanation
Fig. 1 is lubricating oil composition of the present invention and the contrast of SJ 15W-40 gasoline engine oil alkali retention.
embodiment
Following embodiment further illustrates of the present invention, but the invention is not restricted to these embodiment, is not to limit the scope of the invention.
Embodiment 1
The production of take product 100Kg of the present invention as example raw material used and mass ratio thereof as:
Compound method of the present invention is, said components raw material is joined in the container with heating and stirring successively, at 80 ± 5 ℃, fully stir 4 hours, mix to composition, can be met the additive composition for lubricant oil of M100 methanol gasoline engine lubricating requirement.
Embodiment 2
The production of take product 100Kg of the present invention as example raw material used and mass ratio thereof as:
Compound method of the present invention is identical with embodiment 1.
For verifying effect of the present invention, contriver adopts the engine oil of the embodiment of the present invention 1 preparation to carry out bench testing, this lubricating oil and common SJ 15W-40 gasoline engine oil have been carried out to senditivity experriments and SJ 20W-50 gasoline engine oil driving simultaneous test, test-results is as follows simultaneously:
1, lubricating oil composition of the present invention and SJ15W-40 gasoline engine oil simulation comparison test
Testing method: SH/T 0300 crankcase simulation test method (QZX method) is measured oil product coking amount, SH/T0251 petroleum products base number assay method (perchloric acid potentiometric titration) is measured oil product base number.Oil product wear resistance measuring method: select MRT type cam-tappet wear testing machine rating method evaluation oil product wear resistance, the resistance to abrasion of oil product is evaluated in test with cam and the total weightlessness of tappet.Oil product dispersing property measuring method: spot dispersion method, by lubricating oil and engine sludge according to a certain percentage 150 ℃ evenly mixes after, oil sample is dropped in to filter paper center, mensuration oil mark and mud spot diameter, calculate oil product dispersiveness.Oil product alkali retentivity: aging rear oil product base number is multiplied by 100% divided by fresh oil base number.Simulator program IIIE test method is mainly used in evaluating the anti-oxidant polishing machine of gasoline engine oil.Be to carry out on four-ball tester in wearing and tearing, high loading, the slow speed of revolution, pass into a certain amount of gas and micro-oil sample, make surface of friction pair form boundary lubrication condition, to block the length of the time of stinging, judge the anti-oxidant polishing machine quality of test oil.Simulator program V E test is mainly used in evaluating the low temperature dispersity of gasoline engine oil.To add sample integral body to be heated to certain temperature a certain proportion of promotor, with the reactant gases of certain flow rate, passing into the reaction tubes that sample is housed reacts, after reaction finishes, use solvent washing reaction tubes, then centrifugation, isolated settling is dried and weighed, by sedimental weight, represent test-results.
Contrast test and calculation result are in Table 1.
Table 1 lubricating oil composition of the present invention and SJ15W-40 gasoline engine oil simulation comparison test
| Project | Embodiment 1 lubricating oil | SJ15W-40 gasoline engine oil |
| Coking amount (mg) | 53.6 | 87.8 |
| Base number (mgKOH/g) | 8.84 | 5.81 |
| Cam and tappet total weightless (mg) | 3.8 | 44.4 |
| Dispersed (%) | 74.3 | 69.0 |
| Simulator program III E(mg) | 11.5 | 8.6 |
| Simulator program V E(mg) | 234.2 | 263.6 |
From the coking amount of table 1, base number, cam tappet is always weightless, dispersiveness, the testing datas such as simulator program IIIE and simulator program VE are known, and lubricating oil composition performance of the present invention is better than SJ15W-40 gasoline engine oil.
From 80 and 160 hours oil product alkali retentivity testing datas of Fig. 1, lubricating oil composition of the present invention has in more excellent acid and performance and alkali retention compared with SJ15W-40 gasoline engine oil.
2, lubricating oil composition engine rig test of the present invention
Table 2 lubricating oil composition engine rig test of the present invention result
Note: engine rig test is the representative test of evaluation SJ level gasoline engine oil, and this test-results shows, presses
The composition properties of this embodiment has reached API SJ gasoline engine oil index request.
3, lubricating oil composition of the present invention and SJ 20W-50 gasoline engine oil driving simultaneous test
Suitability with the SJ methanol gasoline engine special lube designing for investigation, lubricating oil of the present invention and SJ 20W/50 reference oil have been carried out to contrast road test on two M100 methanol vehicles of transformation, and M100 methanol fuel meets Shanxi Province provincial standard DB14/T 179-2008 " M85, M100 methanol fuel for vehicles ".Test miles: lubricating oil of the present invention is 12000km, SJ 20W-50 gasoline engine oil is 7000km, after test, two cars oil sample is analyzed.
Testing method: GB/T 265 measures oil viscosity, GB/T 4945 measures oil product acid number, GB/T 17476 measures Wear metal content in used lubricating oil, SH/T 0251 measures oil product base number, GB/T 260 measures moisture in oil product, GB/T 3536 measures oil flash point, and GB/T 8926 measures oil product pentane insolubles, oil viscosity velocity of variation: used engine oil viscosity is deducted to new oil viscosity and be multiplied by 100% divided by fresh oil base number.Oil product alkali retentivity: aging rear oil product base number is multiplied by 100% divided by fresh oil base number.
Test and experiment calculation the results are shown in Table 3.
Table 3 lubricating oil of the present invention and SJ 20W/50 reference oil road tests
Note: lubricating oil of the present invention for the 12000km that travels after crude oil sample analysis data, SJ 20W-50 gasoline engine oil for the 7000km that travels after crude oil sample analysis data.
From table 2 road test analytical results, methanol gasoline engine special lube, can be effectively in and the acid product that produces of methanol fuel burning; Compare with regular gasoline machine oil, there is better acid neutralization capacity and base number retentivity; There is good wear Characteristics, can reduce to greatest extent friction and wear, improve mechanical property; This product is applicable to methanol gasoline (M5-M100) engine lubrication, meets the use properties requirement of methanol gasoline engine completely.
Claims (3)
1. one kind is used the engine oil composition that methyl alcohol or methanol gasoline are fuel, the weight percentage that it is characterized in that composition material consists of: metal detergent 6.6-8.0%, ashless dispersant 7.0-10.0%, the anti-rotten anti-wear agent 2.8-3.5% of antioxygen, viscosity index improver 1.5-6.0%, pour point depressant 0.1-0.5%, rust-preventive agent 0.8-2.0%, kilfoam 0.001-0.01%, base oil 65.0-80.0%, its each composition weight percentage composition sum is 100%;
Above-mentioned metal detergent is that base number is the mixture of the mixture of 180 ~ 350 synthetic sulfonic acid magnesium and the base number calcium alkylbenzenesulfonate that is 10 ~ 40 and the base number alkylphenol calcium that is 180 ~ 350 or calcium alkylbenzenesulfonate that base number is 180 ~ 350 and the base number calcium alkylbenzenesulfonate that is 10 ~ 40 and the base number alkylphenol calcium that is 180 ~ 350, and in said mixture in order the quality proportioning of each component be 3:1:3; Ashless dispersant is polyisobutene mono butonediimide or polyisobutylene-bis-succinimide or both mixtures; The anti-rotten anti-wear agent of antioxygen is the mixture that 1.6-2.0% zinc dialkyl dithiophosphate and 1.2-1.5% alkyl diphenylamine form by quality percentage composition; Viscosity index improver is polyisobutene or ethylene-propylene copolymer or hydrogenated styrene isoprene copolymer or above both compositions arbitrarily; Pour point depressant is alkylnaphthalene type or poly-a alkene or polymethacrylate or above both compositions arbitrarily; Rust-preventive agent is benzotriazole or dodecenylsuccinic acid or lanolin magnesium soap or above both compositions arbitrarily; Kilfoam is methyl-silicone oil or polyethers or amides or above both compositions arbitrarily; Base oil is solvent treatment base oil or hydrofining base oil or both compositions.
2. engine oil composition according to claim 1, the weight percent that it is characterized in that composition material consists of: metal detergent 6.6-7.8%, ashless dispersant 7.5-9.0%, the anti-rotten anti-wear agent 3.0-3.5% of antioxygen, viscosity index improver 1.8-5.5%, pour point depressant 0.2-0.5%, rust-preventive agent 1.0-1.8%, kilfoam 0.003-0.005%, base oil 68.0-80.0%, its each composition weight percentage composition sum is 100%.
3. engine oil composition according to claim 1, the weight percent that it is characterized in that composition material consists of: metal detergent 6.8-7.5%, ashless dispersant 7.8-8.5%, the anti-rotten anti-wear agent 3.2-3.4% of antioxygen, viscosity index improver 2.0-5.3%, pour point depressant 0.3-0.5%, rust-preventive agent 1.2-1.6%, kilfoam 0.003-0.005%, base oil 72.0-78.0%, its each composition weight percentage composition sum is 100%.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004568A (en) * | 2014-05-04 | 2014-08-27 | 北京联飞翔科技股份有限公司 | Antifreeze cooling-oil additive for engines and antifreeze cooling oil thereof |
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| CN104927984A (en) * | 2014-03-20 | 2015-09-23 | 中国石油化工股份有限公司 | Rust-proof oil composition |
| CN104004568B (en) * | 2014-05-04 | 2016-04-06 | 北京联飞翔科技股份有限公司 | A kind of engine antif cooling oil additive and antifreeze cooling oil thereof |
| CN104004568A (en) * | 2014-05-04 | 2014-08-27 | 北京联飞翔科技股份有限公司 | Antifreeze cooling-oil additive for engines and antifreeze cooling oil thereof |
| CN106318547A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | Lubricating oil composition for methanol fuel engine and preparation method thereof |
| CN106318547B (en) * | 2015-06-16 | 2019-05-21 | 中国石油化工股份有限公司 | A kind of methanol-fueled engine lubricant oil composite and preparation method thereof |
| CN105255546A (en) * | 2015-11-02 | 2016-01-20 | 宋介珍 | Methanol engine lubricating oil and preparation method thereof |
| CN105462658A (en) * | 2015-11-23 | 2016-04-06 | 广西大学 | Compression-ignition engine oil suitable for mixed polyoxymethylene dimethyl ether fuel |
| CN105886029A (en) * | 2016-05-04 | 2016-08-24 | 广州宇能新能源科技有限公司 | Lubricating oil additive composition and lubricating oil for methanol fuel internal combustion engine |
| CN106398828A (en) * | 2016-08-31 | 2017-02-15 | 东营市昊铭润滑科技有限公司 | High-detergent dispersibility gasoline engine lubricating oil and preparation method thereof |
| CN106590853A (en) * | 2016-10-20 | 2017-04-26 | 广州吉盛润滑科技有限公司 | Synthetic supercharged methanol engine oil as well as preparation method and application thereof |
| CN106590853B (en) * | 2016-10-20 | 2019-07-16 | 广州吉盛润滑科技有限公司 | A kind of synthesis pressurization methanol engine oil and its preparation method and application |
| CN108342244A (en) * | 2017-01-22 | 2018-07-31 | 天津大学 | A kind of lubricant oil composite for inhibiting fine particle to generate |
| CN106883911A (en) * | 2017-01-23 | 2017-06-23 | 浙江吉利控股集团有限公司 | A kind of high temperature oxidation resisting methyl alcohol machine oil and preparation method thereof |
| CN107201261A (en) * | 2017-06-12 | 2017-09-26 | 合肥铭佑高温技术有限公司 | A kind of high temperature resistant luboil composition for engine |
| CN108517245A (en) * | 2018-05-15 | 2018-09-11 | 郭健 | Lubricating oil and preparation method thereof |
| CN110646564A (en) * | 2018-06-26 | 2020-01-03 | 中国石油天然气股份有限公司 | Method for evaluating base number retention of detergent |
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