CN103666706B - A kind of combined diesel oil engine oil and preparation method thereof - Google Patents
A kind of combined diesel oil engine oil and preparation method thereof Download PDFInfo
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- 239000002283 diesel fuel Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 64
- 239000000654 additive Substances 0.000 claims abstract description 28
- 230000000996 additive effect Effects 0.000 claims abstract description 28
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- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 39
- 239000002199 base oil Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 7
- 238000010907 mechanical stirring Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 5
- NISAHDHKGPWBEM-UHFFFAOYSA-N 2-(4-nonylphenoxy)acetic acid Chemical compound CCCCCCCCCC1=CC=C(OCC(O)=O)C=C1 NISAHDHKGPWBEM-UHFFFAOYSA-N 0.000 claims 1
- MFGZXPGKKJMZIY-UHFFFAOYSA-N ethyl 5-amino-1-(4-sulfamoylphenyl)pyrazole-4-carboxylate Chemical compound NC1=C(C(=O)OCC)C=NN1C1=CC=C(S(N)(=O)=O)C=C1 MFGZXPGKKJMZIY-UHFFFAOYSA-N 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 5
- 238000011068 loading method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000009194 climbing Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 8
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 108010011222 cyclo(Arg-Pro) Proteins 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Lubricants (AREA)
Abstract
The present invention relates to field of engine oil, particularly disclose a kind of combined diesel oil engine oil and preparation method thereof.This combined diesel oil engine oil, the component comprising following weight percent is made: composite additive bag 5.31 ~ 11.5%, viscosity index improver 5.0 ~ 9.0%, oil soluble polyalkylene glycol 70 ~ 85%, oil based on surplus.The invention has the beneficial effects as follows: component is reasonable, highlights high-temperature oxidation stability, heat-resistant quality, detergent-dispersant performance and long drain period; During high temperature, oil film is more tough; during low temperature, flow velocity is faster; starting protection ability is stronger; save fuel oil; also there is outstanding cleansing performance simultaneously; be suitable for often being in the Working environments such as long-distance, heavily loaded, climbing, be frequently to and from the vehicle in weather and the great region of terrain differences, can be used for EGR, DPF, SCR emission control system, natural aspiration or turbo-charging heavy loading diesel engine lubrication are housed.
Description
(1) technical field
The present invention relates to field of engine oil, particularly a kind of combined diesel oil engine oil and preparation method thereof.
(2) background technology
Novel truck, passenger vehicle, engineering truck and stationary diesel unit assemble the engine such as Europe III, Europe IV mostly; these engine structures are compact; generally adopt the technology such as late injection, high-pressure common rail, exhaust gas recirculation EGR; working temperature is high; existing diesel engine oil is used to degrade by Quick Oxidation; soot carbon distribution pollution grows worse, wearing and tearing aggravation, can not protect engine well.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides combined diesel oil engine oil that a kind of component is reasonable, the drain period is long, detergent-dispersant performance is good, high-temperature oxidation stability is good, starting protection ability is stronger and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of combined diesel oil engine oil, the component comprising following weight percent is made: composite additive bag 5.31 ~ 11.5%, viscosity index improver 5.0 ~ 9.0%, oil soluble polyalkylene glycol 70 ~ 85%, oil based on surplus.
This combined diesel oil engine oil, also comprises pour point depressant 0.1 ~ 0.5%.
Described composite additive bag, comprises detergent-dispersant additive 5.0 ~ 10.0% and oxidation inhibitor 0.3 ~ 1.0%, also comprises rust-preventive agent 0.01 ~ 0.5% and/or kilfoam 0.0001 ~ 0.01%.
Described detergent-dispersant additive, for having grey detergent-dispersant additive or ashless detergent dispersant, can suppress and reduce the high temperature deposition thing of engine at piston region Surface Creation, and the greasy filth generated in crankcase and circulating oil path when being run by engine low temperature is scattered in oil.High base number is laid in, and continues the oxygen acid of neutral lubrication oil and fuel oil oxidation generation, stops oxidation, reduce paint film; Described oxidation inhibitor is ashless aromatic amine oxidation inhibitor or Hinered phenols antioxidant, and resistance of oxidation is strong, can suppress oxidation of lubricating oil, reduces the generation of precipitation, paint film and greasy filth, thus suppresses the growth of lubricating oil viscosity.
Described rust-preventive agent is sulfonate (sodium sulfonate, calcium sulphonate, sulfonic acid magnesium, sulfonic acid zinc or barium sulfonate etc.), organic amine or heterogeneous ring compound; its in metallic surface owing to there is electrostatic attraction and form physical adsorption in the dipole of polar molecule and metallic surface; or the molecule of absorption and the chemisorption that chemically reacts of metal; form molecular shield closely in metallic surface, prevent corrosion.
Described kilfoam is organosilicon kilfoam or compound kilfoam, is adsorbed on the film of foam with the colloidal particle form of high dispersing, by reducing the mode such as surface tension, expansion, making film thinning until break, reaching the object of froth breaking.
Described viscosity index improver is polymethacrylate or vinylbenzene and diene copolymer, increases oil product viscosity, and improve viscosity index, low-temperature startup is good, reduces wearing and tearing, saves fuel oil, can all-season.
Traditional polyethers base oil is with oxyethane, propylene oxide, butylene oxide ring and tetrahydrofuran (THF) etc. for raw material, under catalyst action, and the simple linear polymer that open loop homopolymerization or copolymerization obtain.Oil soluble polyalkylene glycol of the present invention is not traditional oxyethane (EO) and propylene oxide (PO) homopolymerization copolymerized polymer, but pass through block polymerization, random copolymerization, the oil-soluble polymers that reverse block is obtained, have the following advantages: viscosity grade is extensive, viscosity index is high, high temperature performance is excellent, oil film strength is high, also there is outstanding depositional control and equipment cleaning, be not hydrolyzed, use safety, and in elastomer compatibility, there is outstanding behaviours the aspects such as water absorbability, particularly by alkoxylate chemical technology, improve a difficult problem for conventional polyether base oil and other base oil intermiscibility difference.Oil soluble polyalkylene glycol also has high biological degradation rate, is a kind of environmental protection base oil of high-quality.
Described base oil is II class base oil, III class base oil, synthesis hydrocarbon base oil or synthetic ester base oil, use composite with oil soluble polyalkylene glycol.
Described pour point depressant is polymethacrylate, and the wax when low temperature and in oil forms eutectic, changes its shape and size, keeps the flow capacity of oil.
The preparation method of this combined diesel oil engine oil, comprises the steps:
(1) by oil soluble polyalkylene glycol and base oil mixing, heated and stirred, mixes to obtain mixing oil A at constant temperature 50 ~ 60 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, viscosity index improver, continue stirring 1 ~ 2h under constant temperature 50 ~ 60 DEG C of conditions, obtained mixing oil B;
(3) the mixing oil B that step (2) is obtained is filtered under 0.1MPa ~ 0.2MPa pressure, obtain limpid transparent combined diesel oil engine oil.
The preparation method of this combined diesel oil engine oil, comprises the steps:
(1) by oil soluble polyalkylene glycol and base oil mixing, heated and stirred, mixes to obtain mixing oil A at constant temperature 50 ~ 60 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, viscosity index improver, pour point depressant, continue stirring 1 ~ 2h under constant temperature 50 ~ 60 DEG C of conditions, obtained mixing oil B;
(3) the mixing oil B that step (2) is obtained is filtered under 0.1MPa ~ 0.2MPa pressure, obtain limpid transparent combined diesel oil engine oil.
The beneficial effect of combined diesel oil engine oil of the present invention and preparation method thereof is: select high-quality oil soluble polyalkylene glycol and each additive to carry out composite, component is reasonable, highlight high-temperature oxidation stability, heat-resistant quality, detergent-dispersant performance and long drain period, reach balance and the unification of overall performance; During high temperature, oil film is more tough; during low temperature, flow velocity is faster; starting protection ability is stronger; save fuel oil; also there is outstanding cleansing performance simultaneously; be suitable for often being in the Working environments such as long-distance, heavily loaded, climbing, be frequently to and from the vehicle in weather and the great region of terrain differences, can be used for EGR, DPF, SCR emission control system, natural aspiration or turbo-charging heavy loading diesel engine lubrication are housed.
(4) embodiment
Below in conjunction with embodiment, the invention will be further described, but the present invention is not limited thereto, and the preparation method in embodiment is customary preparation methods, no longer describes in detail.
Embodiment 1:(is in double centner, as follows)
This composite additive bag, wherein calcic 2.85%, zinc 0.94%, nitrogen 0.65%, phosphorus 0.86%, molybdenum 0.04%, boron 0.36%.
The preparation method of this combined diesel oil engine oil, adopts following steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 60 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, the viscosity index improver (polymethacrylate) of above-mentioned weight, continue mechanical stirring 2h under constant temperature 60 DEG C of conditions, obtained mixing oil B;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.2MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
Embodiment 2:
This composite additive bag, wherein calcic 3.85%, zinc 1.40%, nitrogen 0.86%, phosphorus 1.22%.
The preparation method of this combined diesel oil engine oil, adopts following steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 55 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, the viscosity index improver (hydrogenated styrene isoprene copolymer) of above-mentioned weight, mechanical stirring 1.5h is continued, obtained mixing oil B under constant temperature 55 DEG C of conditions;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.15MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
Embodiment 3:
This composite additive bag, wherein calcic 0.89%, zinc 1.15%, nitrogen 0.72%, phosphorus 1.12%, magnesium 0.88%.
The preparation method of this combined diesel oil engine oil, adopts following steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and synthesis hydrocarbon base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 50 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, the viscosity index improver (vinylbenzene and diene copolymer) of above-mentioned weight, continue mechanical stirring 1h under constant temperature 50 DEG C of conditions, obtained mixing oil B;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.1MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
Embodiment 4:
This composite additive bag, wherein calcic 2.45%, zinc 1.27%, nitrogen 0.56%, phosphorus 1.16%.
The preparation method of this combined diesel oil engine oil, adopts following steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and III class base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 55 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, viscosity index improver (hydrogenated styrene isoprene copolymer), the pour point depressant (polymethacrylate) of above-mentioned weight, mechanical stirring 2h is continued, obtained mixing oil B under constant temperature 55 DEG C of conditions;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.15MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
Embodiment 5:
This composite additive bag, wherein calcic 3.85%, zinc 1.40%, nitrogen 0.86%, phosphorus 1.22%.
The preparation method of this combined diesel oil engine oil, adopts following steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and II class base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 60 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, viscosity index improver (hydrogenated styrene isoprene copolymer), the pour point depressant (polymethacrylate) of above-mentioned weight, mechanical stirring 1.5h is continued, obtained mixing oil B under constant temperature 60 DEG C of conditions;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.2MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
Embodiment 6:
This composite additive bag, wherein calcic 3.85%, zinc 1.40%, nitrogen 0.86%, phosphorus 1.22%.
The preparation method of this combined diesel oil engine oil, adopts following steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and II class base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 60 DEG C;
(2) in the obtained mixing oil A of step (1), add composite additive bag, viscosity index improver (hydrogenated styrene isoprene copolymer), the pour point depressant (polymethacrylate) of above-mentioned weight, mechanical stirring 1.5h is continued, obtained mixing oil B under constant temperature 60 DEG C of conditions;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.2MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
Combined diesel oil engine oil of the present invention, quality scale reaches CH-4, CI-4 and CJ-4, viscosity grade relates to 5W-30,5W-40,10W-30,10W-40,15W-40,5W-50,20W-50 etc. 7, can be used for EGR, DPF, SCR emission control system, natural aspiration or turbo-charging heavy loading diesel engine lubrication are housed.
With conventional diesel engines oil phase ratio, combined diesel oil engine oil of the present invention has the following advantages:
A) pour point (experimental technique ASTMD97), the pour point of combined diesel oil engine oil of the present invention is more oily than conventional diesel engines low 15 ~ 30 DEG C, more adapts to extreme low temperature applied environment;
B) low temperature coefficient of dynamic viscosity (experimental technique ASTMD5293), combined diesel oil engine oil of the present invention is under equal cold condition, and low temperature coefficient of dynamic viscosity reduces by 15 ~ 30%, more wipes surface lubrication near Bodhidharma, prevent wearing and tearing in cold start-up moment;
C) open flash point (experimental technique ASTMD92), combined diesel oil engine oil flash of the present invention is than conventional diesel engines innage 20 ~ 40 DEG C, and use safer, volatility is lower;
D) viscosity index (experimental technique ASTMD2270), combined diesel oil engine oil of the present invention can improve 15 ~ 30, and viscosity-temperature characteristics can be better, and high-temperature viscosity rate of descent reduces by 15 ~ 30%, and high temperature oil-film retention property is better;
E) depositional control and cleansing performance (experimental technique ASTMD2893B), combined diesel oil engine oil of the present invention seldom produces deposition, and acid number change and viscosity change little, have obvious cleansing performance;
F) vaporization losses (experimental technique ASTMD5800), the vaporization losses of combined diesel oil engine oil of the present invention on average reduces by 15 ~ 30%, and in use, waste during high temperature is less;
G) total basicnumber (experimental technique ASTMD2896), the total basicnumber retention of combined diesel oil engine oil of the present invention improves 1 ~ 3 times, the acidic substance produced with fuel oil and machine oil in continuing in use procedure, more lasting to engine protection;
H) endurance check (experimental technique ASTMD6681), combined diesel oil engine oil of the present invention is at apical ring groove charcoal, platform charcoal, and there is excellent performance the aspects such as piston, ring and cylinder sleeve scratch;
I) overlength life cycle, the drain period of combined diesel oil engine oil of the present invention is 1 ~ 5 times of conventional diesel engines oil.
Claims (2)
1. a combined diesel oil engine oil, it is characterized in that: the component comprising following weight percent is made: detergent-dispersant additive 5.0%, oxidation inhibitor 0.3%, rust-preventive agent 0.01%, viscosity index improver 5.0%, oil soluble polyalkylene glycol 85%, surplus is synthetic ester base oil;
Wherein: described detergent-dispersant additive is high base number zinc salicylate, oxidation inhibitor is octyl group butyl pentanoic, rust-preventive agent is different nonylphenoxyacetic acid; Described viscosity index improver is hydrogenated styrene isoprene copolymer;
Described detergent-dispersant additive, oxidation inhibitor, rust-preventive agent are mixed and made into composite additive bag, calcic 3.85%, zinc 1.40%, nitrogen 0.86%, phosphorus 1.22% in described composite additive bag.
2. a preparation method for combined diesel oil engine oil as claimed in claim 1, is characterized in that: comprise the steps:
(1) oil soluble polyalkylene glycol of above-mentioned weight and synthetic ester base oil toothed gear pump are pumped in mediation Fu, heated and stirred, mixes to obtain mixing oil A at constant temperature 55 DEG C;
(2) in the obtained mixing oil A of step (1), add the composite additive bag that above-mentioned detergent-dispersant additive, oxidation inhibitor, rust-preventive agent mixing are obtained, add viscosity index improver hydrogenated styrene isoprene copolymer again, mechanical stirring 1.5h is continued, obtained mixing oil B under constant temperature 55 DEG C of conditions;
(3) the mixing oil B that step (2) is obtained being filtered, under 0.15MPa pressure, through there being the metre filter of filter bag device, obtaining limpid transparent combined diesel oil engine oil.
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| CN201310728800.0A CN103666706B (en) | 2013-12-25 | 2013-12-25 | A kind of combined diesel oil engine oil and preparation method thereof |
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| CN201310728800.0A CN103666706B (en) | 2013-12-25 | 2013-12-25 | A kind of combined diesel oil engine oil and preparation method thereof |
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| CN104087385A (en) * | 2014-07-14 | 2014-10-08 | 广西大学 | Engine oil composition of formaldehyde resin methanol gasoline |
| CN104194895A (en) * | 2014-08-31 | 2014-12-10 | 广西大学 | Heating-oil-coke-slurry engine oil composition |
| CN104862043A (en) * | 2015-04-27 | 2015-08-26 | 南宁飞日润滑油有限公司 | Heavy-load agricultural diesel engine special oil and production method thereof |
| CN105176661B (en) * | 2015-08-27 | 2017-09-29 | 宁波蓝润能源科技股份有限公司 | A kind of diesel engine oil and preparation method thereof |
| CN107353975A (en) * | 2017-06-27 | 2017-11-17 | 山西潞安太行润滑油有限公司 | A kind of lubricating oil composition for diesel engine composition |
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Denomination of invention: A synthetic diesel engine oil and its preparation method Effective date of registration: 20231031 Granted publication date: 20160106 Pledgee: Yantai financing guarantee Group Co.,Ltd. Pledgor: Yantai Degao Petroleum Co.,Ltd. Registration number: Y2023980063455 |