CN104327912A - Dual-fuel engine lubricating oil and preparation method thereof - Google Patents
Dual-fuel engine lubricating oil and preparation method thereof Download PDFInfo
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- CN104327912A CN104327912A CN201410531450.3A CN201410531450A CN104327912A CN 104327912 A CN104327912 A CN 104327912A CN 201410531450 A CN201410531450 A CN 201410531450A CN 104327912 A CN104327912 A CN 104327912A
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Abstract
A dual-fuel engine lubricating oil is composed of the following raw materials by the weight percentage: second-class hydrogenated base oil, overbased synthetic calcium sulphonate, overbased sulfurized alkyl calcium phenate, succinimide with high molecular weight, divinyl succinimide, zinc butyl octyl thiophosphate, a base zinc salt of dioctyl thiophosphate and octyl/butyl diphenylamine. A preparation method for the dual-fuel engine lubricating oil comprises the steps: firstly, heating the second-class hydrogenated base oil to 60-70 DEG C in a concocting kettle, successively adding the other raw materials into the heated second-class hydrogenated base oil, stirring for 20-50 minutes, after stirring uniformly, sampling, carrying out chemical examination, filling after the ash and the alkali value are tested to be qualified, and thus obtaining the dual-fuel engine lubricating oil. The dual-fuel engine lubricating oil and the preparation method thereof provided by the invention can solve the lubrication and sealing problems, and have the advantages of good cleanness, good dispersivity, anti-oxygen wear-resistant performance, simple preparation process, and low production cost.
Description
Technical field
The present invention relates to a kind of compressed natural gas or liquefied petroleum gas (LPG) of using as dual-fuel engine lubricating oil of fuel and preparation method thereof.
Background technology
Along with the enhancing gradually of people's awareness of saving energy, countries in the world are paid attention to more to energy utilization problem.At present, in automobile industry, continually develop out fuel substitute automobile, wherein desirably replace the dual-fuel automobile of the I. C. engine oil such as gasoline or diesel oil by compressed natural gas or liquefied petroleum gas (LPG).
Dual-fuel engine uses Sweet natural gas or liquefied petroleum gas (LPG) as fuel, and its calorific value is very high, exhaust emissions temperatures as high 480 DEG C, and exceed 180 ~ 200 DEG C than the temperature of common I. C. engine oil, engine combustion temperatures is high, causes lubricating oil evaporation loss large, NO
xtoo high levels, I. C. engine oil very easily makes NO
xthere is oxidation or nitration, increase greasy filth and carbon deposit, thus boost engine wearing and tearing, deterioration of lubricant is aging; And, Sweet natural gas or liquefied petroleum gas combustion are totally without resistates, unlike the I. C. engine oil such as gasoline or diesel oil, because it is clean thoroughly to burn, carbon residue can be produced, idle and the trickle mist of oil of cigarette, these materials are exactly pleased can lubrication and seal valve, the mechanisms such as valve seat, thus guarantees that these mechanical operation are normal, therefore using compressed natural gas or liquefied petroleum gas (LPG) as the dual-fuel engine of fuel, the problem of lubrication and seal must be solved.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of dual-fuel engine lubricating oil and preparation method thereof, can solve lubrication and seal problem, has good detergent-dispersant performance and antioxygen wear resistance, and preparation technology is simple, and production cost is low.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of dual-fuel engine lubricating oil, and this engine oil is made up of the raw material of following weight percent:
The preferred percent of each raw material composition consists of:
The preparation method of above-mentioned dual-fuel engine lubricating oil is, first in blending kettle, two class hydrogenated base oils are heated to 60 ~ 70 DEG C, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, the two octyl group basic zinc salt of sulphur phosphorus and pungent/butyl pentanoic is added successively again in two class hydrogenated base oils after heating, stir 20 ~ 50 minutes, the post-sampling that stirs is chemically examined, can be filling after ash content and base number test passes, make dual-fuel engine lubricating oil.
Blending kettle is stainless steel still or enamel still.
After adding all raw materials, churning time is preferably 30 minutes.
Time filling, temperature >=30 DEG C of the dual-fuel engine lubricating oil made.
The resistance of oxidation of two class hydrogenated base oils is strong, and the non-hydrocarbons such as sulfur compound, muriate component is low, has the advantage that pour point is low, flash-point is high.
High base number calcium alkylbenzenesulfonate effectively can reduce the high temperature deposition thing on engine, protects engine long-term effectively, avoids the acid attack of parts, and can extend the oil draining period; Further, the base number of lubricating oil can also be improved, with the acid number produced after controlling high temperature oxidation and acidulants, with other materials, there is synergetic property, improve detergency, the ashless property of lubricating oil, improve the calcium contents of lubricating oil, thus suppress the discharge of the carbon monoxide after engine combustion.
Sulphur phosphorus fourth octyl group zinc salt has good anti-oxidant, anticorrosive, extreme pressure and antiwear behavior, can effectively prevent motor bearing from corroding and the oil viscosity that causes because of high temperature oxidation increases, oil soluble and compatibleness good, the wear resistance of lubricating oil can be improved.
SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER has splendid acid neutralization capacity and high temperature detergency, also there is good anti-oxidant, erosion resistance simultaneously, its resistance to emulsion and oil soluble are also obviously better than sulfonated petro-leum purification agent, remarkable to reduction piston head ring groove carbon deposition effect.
High molecular succimide be with high-activity polyisobutene (=2300) be raw material, the high molecular ashless dispersant that adopts hot adduction technique to prepare, there is good cigarette ash, the dispersion of greasy filth and solublization, can Engine Oil Viscosity be effectively suppressed to increase, not chloride.
Diene base succimide add the dispersing property not only making oil product keep good, splendid synergistic effect can also be had with high base number calcium alkylbenzenesulfonate and SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, greatly improve the stability of a large amount of basic components in oil in high base number calcium alkylbenzenesulfonate and SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, and not easily in use accelerate due to precipitating to exhaust.
The two octyl group basic zinc salt of sulphur phosphorus has good antioxidant anticorrosive performance and extreme pressure and antiwear behavior, can effectively prevent motor bearing from corroding and making because of high temperature oxidation oil viscosity increase, of light color, oil soluble and additive compatibleness good.
Pungent/butyl pentanoic is a kind of excellent liquid antioxidant addn, and high temperature antioxidant is excellent, and compatibleness is good, and with other arylamine class and shield phenolic antioxidant compound use and have synergism, high high-temp stability is excellent.
A kind of dual-fuel engine lubricating oil provided by the invention and preparation method thereof, method technique is simple, production cost is low, the two class hydrogenated base oils selected, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, sulphur phosphorus is two has extremely strong compatibility reasonableness between octyl group basic zinc salt and pungent/butyl pentanoic, make dual-fuel engine lubricating oil ash moderate, there is excellent resistance of oxidation, high base number acid-proof voltinism, abrasion resistance, effectively reduce the evaporation loss of lubricating oil, improve the wearing and tearing that lubricating oil in the past causes engine, thus add the work-ing life of engine, solve the aging fast problem of deterioration of lubricant, extend the drain period of lubricating oil, improve the power of engine, the detergency of this dual-fuel engine lubricating oil is good, and fuel combustion value is high, burning is complete, makes engine decrease the generation of greasy filth and peat, reduces CO, hydrocarbon polymer, NO
x, sulfide and lead quantity discharged, meet state IV automobile exhaust emission standard, make engine reach effect that is efficient and energy-saving and emission-reduction, following prevailing quality service index can be ensured: ash content: 0.5 ~ 0.9%, base number: 5 ~ 10mg koH/g.
Embodiment
Embodiment 1
A kind of dual-fuel engine lubricating oil, this engine oil is made up of the raw material of following weight percent:
The preparation method of above-mentioned dual-fuel engine lubricating oil is, first in blending kettle, two class hydrogenated base oils are heated to 60 DEG C, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, the two octyl group basic zinc salt of sulphur phosphorus and pungent/butyl pentanoic is added successively again in two class hydrogenated base oils after heating, stir 20 minutes, the post-sampling that stirs is chemically examined, can be filling after ash content and base number test passes, make dual-fuel engine lubricating oil.
Blending kettle is stainless steel still or enamel still.
Time filling, temperature >=30 DEG C of the dual-fuel engine lubricating oil made.
Embodiment 2
A kind of dual-fuel engine lubricating oil, this engine oil is made up of the raw material of following weight percent:
The preparation method of above-mentioned dual-fuel engine lubricating oil is, first in blending kettle, two class hydrogenated base oils are heated to 70 DEG C, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, the two octyl group basic zinc salt of sulphur phosphorus and pungent/butyl pentanoic is added successively again in two class hydrogenated base oils after heating, stir 50 minutes, the post-sampling that stirs is chemically examined, can be filling after ash content and base number test passes, make dual-fuel engine lubricating oil.
Blending kettle is stainless steel still or enamel still.
Time filling, temperature >=30 DEG C of the dual-fuel engine lubricating oil made.
Embodiment 3
A kind of dual-fuel engine lubricating oil, this engine oil is made up of the raw material of following weight percent:
The preparation method of above-mentioned dual-fuel engine lubricating oil is, first in blending kettle, two class hydrogenated base oils are heated to 65 DEG C, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, the two octyl group basic zinc salt of sulphur phosphorus and pungent/butyl pentanoic is added successively again in two class hydrogenated base oils after heating, stir 40 minutes, the post-sampling that stirs is chemically examined, can be filling after ash content and base number test passes, make dual-fuel engine lubricating oil.
Blending kettle is stainless steel still or enamel still.
Time filling, temperature >=30 DEG C of the dual-fuel engine lubricating oil made.
Embodiment 4
A kind of dual-fuel engine lubricating oil, this engine oil is made up of the raw material of following weight percent:
The preparation method of above-mentioned dual-fuel engine lubricating oil is, first in blending kettle, two class hydrogenated base oils are heated to 65 DEG C, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, the two octyl group basic zinc salt of sulphur phosphorus and pungent/butyl pentanoic is added successively again in two class hydrogenated base oils after heating, stir 30 minutes, the post-sampling that stirs is chemically examined, can be filling after ash content and base number test passes, make dual-fuel engine lubricating oil.
Blending kettle is stainless steel still or enamel still.
Time filling, temperature >=30 DEG C of the dual-fuel engine lubricating oil made.
Claims (6)
1. a dual-fuel engine lubricating oil, is characterized in that this engine oil is made up of the raw material of following weight percent:
2. a kind of dual-fuel engine lubricating oil according to claim 1, is characterized in that this engine oil is made up of the raw material of following weight percent:
3. the preparation method of a dual-fuel engine lubricating oil, it is characterized in that: first in blending kettle, two class hydrogenated base oils are heated to 60 ~ 70 DEG C, high base number calcium alkylbenzenesulfonate, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER, high molecular succimide, diene base succimide, sulphur phosphorus fourth octyl group zinc salt, the two octyl group basic zinc salt of sulphur phosphorus and pungent/butyl pentanoic is added successively again in two class hydrogenated base oils after heating, stir 20 ~ 50 minutes, the post-sampling that stirs is chemically examined, can be filling after ash content and base number test passes, make dual-fuel engine lubricating oil.
4. the preparation method of a kind of dual-fuel engine lubricating oil according to claim 3, is characterized in that: blending kettle is stainless steel still or enamel still.
5. the preparation method of a kind of dual-fuel engine lubricating oil according to claim 3, is characterized in that: after adding all raw materials, and churning time is 30 minutes.
6. the preparation method of a kind of dual-fuel engine lubricating oil according to claim 3, is characterized in that: time filling, temperature >=30 DEG C of the dual-fuel engine lubricating oil made.
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| CN201410531450.3A CN104327912A (en) | 2014-10-10 | 2014-10-10 | Dual-fuel engine lubricating oil and preparation method thereof |
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| CN201410531450.3A CN104327912A (en) | 2014-10-10 | 2014-10-10 | Dual-fuel engine lubricating oil and preparation method thereof |
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| CN104327912A true CN104327912A (en) | 2015-02-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112127A (en) * | 2015-09-17 | 2015-12-02 | 天津市中达石化有限责任公司 | Medium-ash type lubricating oil composition for oil-gas mixed engine |
| CN108018111A (en) * | 2017-12-08 | 2018-05-11 | 锦州新兴石油添加剂有限责任公司 | A kind of heavy load CNG natural gas engines machine oil complexing agent and its preparation method and application |
-
2014
- 2014-10-10 CN CN201410531450.3A patent/CN104327912A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112127A (en) * | 2015-09-17 | 2015-12-02 | 天津市中达石化有限责任公司 | Medium-ash type lubricating oil composition for oil-gas mixed engine |
| CN108018111A (en) * | 2017-12-08 | 2018-05-11 | 锦州新兴石油添加剂有限责任公司 | A kind of heavy load CNG natural gas engines machine oil complexing agent and its preparation method and application |
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