CN102942982A - Lubricating oil for natural gas engine and preparation method thereof - Google Patents
Lubricating oil for natural gas engine and preparation method thereof Download PDFInfo
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- CN102942982A CN102942982A CN2012105052910A CN201210505291A CN102942982A CN 102942982 A CN102942982 A CN 102942982A CN 2012105052910 A CN2012105052910 A CN 2012105052910A CN 201210505291 A CN201210505291 A CN 201210505291A CN 102942982 A CN102942982 A CN 102942982A
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Abstract
The invention relates to the technical field of chemical engineering, and particularly discloses lubricating oil for a natural gas engine and a preparation method thereof. The lubricating oil for a natural gas engine comprises the following components in parts by weight: 80-90 parts of base oil, 9-10 parts of oxidation and corrosion inhibitor, 0.1-1 part of pour-point depressant, 0.5-1.5 parts of dispersant and 2-10 parts of viscosity index improver. The invention has the following beneficial effects: i) the lubricating oil has a low ash content and can reduce the generation of oil sludge, carbon deposition and other sediments, thereby effectively reducing the abrasion of the engine, prolonging the service life of the engine and preventing the engine from being started in advance; ii) the lubricating oil has favorable nitrification and oxidation resistance, the rapid ageing and deterioration of the lubricating oil can be prevented, and the service life of the lubricating oil can be prolonged; and iii) the lubricating oil has favorable cooling property, thereby ensuring that the temperature of the engine is not too high.
Description
(1) technical field
The present invention relates to chemical technology field, particularly a kind of used for natural gas engine lubricating oil and preparation method thereof.
(2) background technology
Along with China to the control of air quality and stricter to the requirement of motor vehicle emission, natural gas engine has become the first-selection that automobile solves emission pollution problem.And natural gas engine need to use used for natural gas engine lubricating oil, the factor analysis such as the type of the use of natural gas engine oil and engine type, Sweet natural gas and group operating mode, use with petrol and diesel oil and can produce following deficiency as the plain oil of fuel: 1. the natural gas temperature of combustion is high, can increase NOx generates, plain oil is easy to oxidation and nitration, easily form the materials such as greasy filth, carbon distribution, cause the easy scuffing of cylinder bore of engine, wear and lubricate oil degradation; 2. Sweet natural gas sulfur-bearing etc. not requires the lubricating oil ash content that uses low, and plain oil can cause that because ash content is too high engine is struck sparks in advance and sparking plug stops up; 3. the poor cooling performance of natural gas engine can increase the thermal load of engine, so the antioxidant property of regular motoroil and high temperature detergent-dispersant performance can all not reach requirement.
(3) summary of the invention
The present invention provides used for natural gas engine lubricating oil that a kind of cost is low, ash content is low, it is nitrated to resist and antioxidant property good, cooling performance is good and preparation method thereof in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
A kind of used for natural gas engine lubricating oil comprises that the component of following parts by weight is made: base oil 80-90 part, oxidation and corrosion inhibitor 9-10 part, pour point depressant 0.1-1 part, dispersion agent 0.5-1.5 part, viscosity index improver 2-10 part.
Described base oil is the 500SN base oil.
Described oxidation and corrosion inhibitor is sulphur phosphorus fourth octyl group zinc salt.
Described pour point depressant is polyalphaolefin.
Described dispersion agent is diene base succimide.
Described viscosity index improver is polyisobutene.
The preparation method of this used for natural gas engine lubricating oil comprises the steps:
In reactor, add base oil, stirring also is heated to 40-60 ℃, then add viscosity index improver, continue to stir 30-40 minute, 40-60 ℃ of Heating temperature maintenance is constant, add again oxidation and corrosion inhibitor and stirred 30-40 minute, continue to add dispersion agent and stirred 10-20 minute, add at last the pour point depressant stirring and namely got used for natural gas engine lubricating oil of the present invention in 10-20 minute.
Described base oil is the 500SN base oil.
Described oxidation and corrosion inhibitor is sulphur phosphorus fourth octyl group zinc salt.
Described pour point depressant is polyalphaolefin.
Described dispersion agent is diene base succimide.
Described viscosity index improver is polyisobutene.
The beneficial effect of used for natural gas engine lubricating oil of the present invention and preparation method thereof is: the relative plain oil comprehensive cost of used for natural gas engine lubricating oil of the present invention reduces, and have the following advantages: i) have lower ash content, can reduce the sedimental generations such as greasy filth and carbon distribution, thereby effectively reduce the wearing and tearing of engine, prolonged the work-ing life of engine, prevented that engine from striking sparks in advance; Ii) have good anti-nitrated and antioxidant property, prevent that the lubricating oil rapid ageing is rotten, prolong the work-ing life of lubricating oil; Iii) have good cooling performance, general diesel exhaust gas mouth temperature is about 300 ℃, and natural gas engine venting port temperature is up to 482 ℃-649 ℃, so used for natural gas engine lubricating oil of the present invention can guarantee that the temperature of engine is unsuitable too high.
(4) description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the comprehensive cost comparison diagram of used for natural gas engine lubricating oil of the present invention and plain oil.
(5) embodiment
The invention will be further described below in conjunction with embodiment, but the present invention is not limited thereto.
Embodiment 1:
This used for natural gas engine lubricating oil is made by the component of following weight: 85 kilograms of base oils, 9.5 kilograms of oxidation and corrosion inhibitors, 0.5 kilogram of pour point depressant, 1 kilogram of dispersion agent, 6 kilograms of viscosity index improvers.
The preparation method of this used for natural gas engine lubricating oil, adopt following steps:
In reactor, add base oil, stirring also is heated to 40-60 ℃, then add viscosity index improver, continue to stir 30-40 minute, 40-60 ℃ of Heating temperature maintenance is constant, add again oxidation and corrosion inhibitor and stirred 30-40 minute, continue to add dispersion agent and stirred 10-20 minute, add at last the pour point depressant stirring and namely got used for natural gas engine lubricating oil of the present invention in 10-20 minute.
Embodiment 2:
This used for natural gas engine lubricating oil is made by the component of following weight: 80 kilograms of base oils, 10 kilograms of oxidation and corrosion inhibitors, 1 kilogram of pour point depressant, 1.5 kilograms of dispersion agents, 10 kilograms of viscosity index improvers.
The preparation method is with embodiment 1.
Embodiment 3:
This used for natural gas engine lubricating oil is made by the component of following weight: 90 kilograms of base oils, 9 kilograms of oxidation and corrosion inhibitors, 0.1 kilogram of pour point depressant, 0.5 kilogram of dispersion agent, 2 kilograms of viscosity index improvers.
The preparation method is with embodiment 1.
Embodiment 4:
This used for natural gas engine lubricating oil is made by the component of following weight: 82 kilograms of base oils, 9.8 kilograms of oxidation and corrosion inhibitors, 0.3 kilogram of pour point depressant, 1.3 kilograms of dispersion agents, 4 kilograms of viscosity index improvers.
The preparation method is with embodiment 1.
Embodiment 5:
This used for natural gas engine lubricating oil is made by the component of following weight: 88 kilograms of base oils, 9.3 kilograms of oxidation and corrosion inhibitors, 0.7 kilogram of pour point depressant, 0.8 kilogram of dispersion agent, 8 kilograms of viscosity index improvers.
The preparation method is with embodiment 1.
Used base oil is the 500SN base oil among the embodiment 1-5, and buying is from China National Petroleum company; Used oxidation and corrosion inhibitor is sulphur phosphorus fourth octyl group zinc salt, and buying is emerging petroleum additive limited liability company from Jinzhou; Used pour point depressant is polyalphaolefin, and buying is from the large chemical industry of Shanghai Bohai Sea company limited; Used dispersion agent is diene base succimide, and buying is emerging petroleum additive limited liability company from Jinzhou; Used viscosity index improver is polyisobutene, and buying is from Jinzhou essence connection lubricating oil additive company limited.
The inspection rule of used for natural gas engine lubricating oil:
A. group is criticized rule: same order of classes or grades at school, same specification, identical product are one group, therefrom extract 2L;
B. stir: stir and undertaken by GB/T1756, get 2L as check sample and keep sample;
C. factory inspection project: sulphated ash, kinematic viscosity (100 ℃), viscosity index, pour point ℃, flash-point ℃.
The key technical indexes of used for natural gas engine lubricating oil
Use the relative plain oil comprehensive cost of used for natural gas engine lubricating oil of the present invention to reduce, see accompanying drawing 1; Used for natural gas engine lubricating oil of the present invention has lower ash content, can reduce the sedimental generations such as greasy filth and carbon distribution, thereby effectively reduces the wearing and tearing of engine, has prolonged the work-ing life of engine, prevents that engine from striking sparks in advance.
Claims (10)
1. used for natural gas engine lubricating oil, it is characterized in that: the component that comprises following parts by weight is made: base oil 80-90 part, oxidation and corrosion inhibitor 9-10 part, pour point depressant 0.1-1 part, dispersion agent 0.5-1.5 part, viscosity index improver 2-10 part.
2. a kind of used for natural gas engine lubricating oil according to claim 1, it is characterized in that: described base oil is the 500SN base oil.
3. a kind of used for natural gas engine lubricating oil according to claim 1, it is characterized in that: described oxidation and corrosion inhibitor is sulphur phosphorus fourth octyl group zinc salt.
4. a kind of used for natural gas engine lubricating oil according to claim 1, it is characterized in that: described pour point depressant is polyalphaolefin.
5. a kind of used for natural gas engine lubricating oil according to claim 1, it is characterized in that: described dispersion agent is diene base succimide.
6. a kind of used for natural gas engine lubricating oil according to claim 1, it is characterized in that: described viscosity index improver is polyisobutene.
7. the preparation method of a kind of used for natural gas engine lubricating oil claimed in claim 1 is characterized in that: comprise the steps:
In reactor, add base oil, stirring also is heated to 40-60 ℃, then add viscosity index improver, continue to stir 30-40 minute, 40-60 ℃ of Heating temperature maintenance is constant, add again oxidation and corrosion inhibitor and stirred 30-40 minute, continue to add dispersion agent and stirred 10-20 minute, add at last the pour point depressant stirring and namely got used for natural gas engine lubricating oil of the present invention in 10-20 minute.
8. the preparation method of a kind of used for natural gas engine lubricating oil according to claim 7, it is characterized in that: described base oil is the 500SN base oil; Described oxidation and corrosion inhibitor is sulphur phosphorus fourth octyl group zinc salt.
9. the preparation method of a kind of used for natural gas engine lubricating oil according to claim 7, it is characterized in that: described pour point depressant is polyalphaolefin; Described dispersion agent is diene base succimide.
10. the preparation method of a kind of used for natural gas engine lubricating oil according to claim 7, it is characterized in that: described viscosity index improver is polyisobutene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505291.0A CN102942982B (en) | 2012-12-03 | 2012-12-03 | Lubricating oil for natural gas engine and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505291.0A CN102942982B (en) | 2012-12-03 | 2012-12-03 | Lubricating oil for natural gas engine and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102942982A true CN102942982A (en) | 2013-02-27 |
| CN102942982B CN102942982B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210505291.0A Expired - Fee Related CN102942982B (en) | 2012-12-03 | 2012-12-03 | Lubricating oil for natural gas engine and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789064A (en) * | 2014-02-24 | 2014-05-14 | 程新明 | Nanometer synthetic lubricant and preparation method thereof |
| CN104004575A (en) * | 2014-05-22 | 2014-08-27 | 陕西师范大学 | Low-temperature-resistant 5W-40 type liquefied natural gas vehicle engine oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510115A (en) * | 2000-12-08 | 2004-07-07 | 申保安 | Marine IC engine lube oil |
| CN1523091A (en) * | 2003-02-20 | 2004-08-25 | 中国石油天然气股份有限公司 | High-grade gasoline and engine oil composition |
-
2012
- 2012-12-03 CN CN201210505291.0A patent/CN102942982B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510115A (en) * | 2000-12-08 | 2004-07-07 | 申保安 | Marine IC engine lube oil |
| CN1523091A (en) * | 2003-02-20 | 2004-08-25 | 中国石油天然气股份有限公司 | High-grade gasoline and engine oil composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789064A (en) * | 2014-02-24 | 2014-05-14 | 程新明 | Nanometer synthetic lubricant and preparation method thereof |
| CN103789064B (en) * | 2014-02-24 | 2015-08-05 | 程新明 | A kind of nanometer ucon oil and preparation method thereof |
| CN104004575A (en) * | 2014-05-22 | 2014-08-27 | 陕西师范大学 | Low-temperature-resistant 5W-40 type liquefied natural gas vehicle engine oil |
| CN104004575B (en) * | 2014-05-22 | 2016-02-17 | 陕西师范大学 | A kind of low temperature resistant 5W-40 type LNGV engine oil |
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| Publication number | Publication date |
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| CN102942982B (en) | 2015-03-04 |
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Granted publication date: 20150304 Termination date: 20211203 |