CN104312646A - Diesel oil lubricity improver and application thereof - Google Patents
Diesel oil lubricity improver and application thereof Download PDFInfo
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- CN104312646A CN104312646A CN201410516662.4A CN201410516662A CN104312646A CN 104312646 A CN104312646 A CN 104312646A CN 201410516662 A CN201410516662 A CN 201410516662A CN 104312646 A CN104312646 A CN 104312646A
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- diesel oil
- improving agent
- diesel
- diesel fuel
- fuel lubricity
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Abstract
The invention provides a diesel oil lubricity improver which is prepared by mixing fatty acid and phosphate in a mass ratio of (7-9) to (1-3). The diesel oil lubricity improver is low in cost, good in stability, hard to separate out and good in using effect. The invention further discloses an application of the diesel oil lubricity improver in diesel oil.
Description
Technical field
The present invention relates to a kind of diesel fuel lubricity improving agent, the invention still further relates to the application of this diesel fuel lubricity improving agent.
Background technology
Along with the significantly raising of people's living standard, the consumption of diesel oil also significantly rises, due to the SO that the sulphur in diesel oil produces after combustion
2be discharged in air, affect the quality of air, cause the pollution to air, and produce the serious consequence such as acid rain, acid mist when it gathers in a large number, in order to solve this problem, strict restriction has been made to the sulphur content in oil fuel in countries in the world." world's fuel oil specification " II class regulation diesel oil sulphur content ≯ 0.03%, oilness (HFRR method, 60 DEG C) grinding defect diameter≤400 μm, China rises and implements GB/T19147-2003 " derv fuel oil " standard on October 1st, 2003, regulation sulphur content ≯ 0.05%, diesel fuel lubricity (HFRR method 60 DEG C) grinding defect diameter≤460 μm, also can make stricter regulation in the future.The diesel oil that refinery specifies in order to production conformance with standard will adopt stricter hydroprocessing technique, but take off sulphur in hydrogenation process while, also taken off many useful polar materials, cause the oilness of diesel oil significantly to reduce, thus need in derv fuel oil, add the oilness that lubricity improver improves derv fuel oil.
Lubricity improver contains polar group, can be adsorbed on friction means surface and forms one deck chemical films or physics film, avoid metal to-metal contact between metal, improve fuel lubricating property, thus play the effect reducing friction and abrasion.Current diesel fuel lubricity improving agent usage quantity is bigger than normal, not only increases diesel oil cost, and these improving agents are also easily separated out in diesel oil, and lubricant effect is also undesirable.
Summary of the invention
An object of the present invention is to provide a kind of diesel fuel lubricity improving agent, and this diesel fuel lubricity improving agent cost is low, good stability, not easily separate out, and result of use is good.
First object of the present invention is realized by following technical measures: a kind of diesel fuel lubricity improving agent, its by lipid acid and phosphoric acid ester in mass ratio 7 ~ 9 ﹕ 1 ~ 3 mix and form.
The quality index of diesel fuel lubricity improving agent of the present invention is as table 1:
Described lipid acid is one or more in ricinolic acid, Yatall MA, linoleic plus oleic acid.
Described phosphoric acid ester is one or both the mixing in phosphoric acid isobutyl ester, iso octyl ester of phosphoric acid and phosphoric acid ester in the different ninth of the ten Heavenly Stems.
Two of object of the present invention is to provide the application of above-mentioned diesel fuel lubricity improving agent in diesel oil, and particularly, the addition of described diesel fuel lubricity improving agent in diesel oil is 70 ~ 100 μ g/g, and namely massfraction is 0.007 ~ 0.01%.Be preferably 80 ~ 100 μ g/g, namely massfraction is 0.008 ~ 0.01%.
the present invention compared with prior art has following unusual effect:
(1) diesel fuel lubricity improving agent provided by the invention can improve the oilness of low-sulfur diesel-oil, compared with existing improving agent, it can improve 100% to the effect that diesel fuel lubricity improves, and stablely in diesel oil not easily separates out, have good economy, the market competitiveness will be stronger.
(2) phosphorus content of the present invention is lower, and the highest is 30%, and add to after in diesel oil, phosphorus content is negligible.
(3) the invention provides diesel fuel lubricity improving agent usage quantity few, reduce diesel production cost.
Accompanying drawing explanation
Fig. 1 is that diesel fuel lubricity improving agent addition of the present invention is to the sex graphic representation of diesel fuel lubricity.
Embodiment
the blending of 1 diesel fuel lubricity improving agent
According to the lubrication mechanism of diesel fuel lubricity improving agent, dissimilar organic substance that select liquid state listed in Table, that have lubricity is as lubricity improver blending component, join in blending kettle, then about 50 DEG C are heated to, stir 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product, be then added in diesel oil, investigate the impact on diesel fuel lubricity.Wherein, diesel oil is hydrocracking diesel oil, and sulphur content is 0.000047%.A is grease, and B is Yatall MA, and W is iso octyl ester of phosphoric acid, and Y is butyl phosphate, Z phosphoric acid ester in the different ninth of the ten Heavenly Stems.
As can be seen from the above results, formula 3, formula 4, formula 5, formula 6, formula 7, formula 8, formula 9 seven formulas significantly can improve the oilness of diesel oil, the oilness of diesel oil is made to drop to less than 460 μm, can meet the requirement of " derv fuel oil " GB/T19147-2003 standard, compound prescription effect is better than single dose formulations.
lubricity improver is on the impact of diesel oil
2.1 investigations adding dosage
With the mixture of Yatall MA and iso octyl ester of phosphoric acid for improving agent, wherein Yatall MA 85%(wt), iso octyl ester of phosphoric acid 15% (wt).Add 0.005%, 0.006%, 0.007%, 0.008% and 0.01% respectively in diesel oil, investigate and add the impact of dosage on diesel fuel lubricity.From the result shown in Fig. 1, along with the increase of the add-on of improving agent, diesel fuel lubricity improves thereupon, when addition higher than 0.006% time, oilness is down to 460 μm, when addition higher than 0.007% time, oilness is down to less than 400 μm, visible, diesel-fuel improver can improve the oilness of diesel oil greatly.
Oilness represents with grinding defect diameter value.
diesel oil adds the contrast of agent fore/aft properties
The character that lubricity improver of the present invention is is added in contrast diesel oil.: diesel oil A is the blank sample of hydrofining diesel oil, and diesel oil B is hydrofining diesel oil+0.01% improving agent, and improving agent is 85%(wt) Yatall MA+15% (wt) iso octyl ester of phosphoric acid.
As shown in table 3, the grinding defect diameter value of diesel fuel lubricity drops to 327 μm from 555 μm, and oilness is significantly improved, and can reach the standard-required of " derv fuel oil " completely.
lubricity improver is on the impact of diesel oil storage stability
After adding lubricity improver of the present invention in diesel oil, three months at normal temperatures.The gum level in diesel oil and acidity is detected when storing initial, after first quarter moon and after three months.In table 4, add and split for hydrocracking diesel oil, be hydrogenated to hydrofining diesel oil, add agent and refer to and add lubricity improver of the present invention.
As can be seen from the result of table 4, after diesel oil adds lubrication modifier, the existent gum of diesel oil is had no significant effect.Acidity to add agent diesel oil at first and is not adding agent diesel oil and have no significant effect.The acidity value adding agent diesel oil in storage process rises to some extent, visible, and the storage stability of lubricity improver on diesel oil has impact, but impact is also little.
lubricity improver is on the impact of swell rubber
Because diesel fuel lubricity improving agent is the organic substance that polarity is stronger, the swelling property of diesel oil to rubber likely can be changed after joining diesel oil, and the sealing member of diesel locomotive is made with starting material with rubber, the swelling property change of diesel oil to rubber may cause the distortion of rubber seal, reduces the work-ing life of sealing member.After so needing to have investigated and adding diesel fuel lubricity improving agent, diesel oil, to the swelling property effect of rubber, the results are shown in Table 5 under normal temperature and 50 DEG C time.
As can be seen from Table 5, add the diesel oil of diesel fuel lubricity improving agent and the rubber ring largest diameter difference of blank diesel oil is 0.1mm, within measuring error scope, therefore, diesel oil adds after diesel fuel lubricity improves not to be affected the swelling property of rubber.
embodimentone:
9 parts of oleic acid and 1 part of iso octyl ester of phosphoric acid are added in blending kettle, under normal temperature, stirs 2 hours, obtain diesel fuel lubricity improving agent product.Add 70 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment two:
9 parts of ricinolic acids and 1 part of iso octyl ester of phosphoric acid are added in blending kettle, is then heated to about 30 DEG C, stir 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 80 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment three:
. 9 parts of Yatall MAs and 1 part of phosphoric acid ester in the different ninth of the ten Heavenly Stems are joined in blending kettle, is then heated to about 40 DEG C, stirs 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 90 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment four:
9 parts of linolic acid and 1 part of phosphoric acid isobutyl ester are joined in blending kettle, is then heated to about 50 DEG C, stir 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 100 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment five:
7 parts of linolic acid and 3 parts of phosphoric acid esters in the different ninth of the ten Heavenly Stems are joined in blending kettle, is then heated to about 50 DEG C, stirs 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 85 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment six:
8 parts of oleic acid and 2 parts of phosphoric acid esters in the different ninth of the ten Heavenly Stems are joined in blending kettle, is then heated to about 50 DEG C, stirs 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 95 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment seven:
8.5 parts of ricinolic acids and 1.5 parts of iso octyl ester of phosphoric acid are joined in blending kettle, is then heated to about 50 DEG C, stir 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 90 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
embodiment eight:
The mixture of 2.5 parts of phosphoric acid isobutyl esters and phosphoric acid ester in the different ninth of the ten Heavenly Stems and 7.5 parts of Yatall MAs are joined in blending kettle, is then heated to about 50 DEG C, stirs 0.5 hour ~ 1 hour, obtain diesel fuel lubricity improving agent product.Add 75 μ g/g in the diesel oil of sulphur content ≯ 0.05%, the oilness of diesel oil can be made to drop to less than 460 μm from 550 μm, and other character of diesel oil is had no adverse effects.
Set forth content of the present invention in further detail by the following examples, but following embodiment is just for setting forth content of the present invention, instead of restriction, therefore any change in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims.
Claims (6)
1. a diesel fuel lubricity improving agent, is characterized in that, by lipid acid and phosphoric acid ester in mass ratio 7 ~ 9 ﹕ 1 ~ 3 mix and form.
2. diesel fuel lubricity improving agent according to claim 1, is characterized in that, it is white or light yellow liquid, and without organic impurity and moisture, without water-soluble soda acid, density is 850 ~ 930kgm
-3, flash-point is not less than 60 DEG C, and acid number is not more than 200 mgKOHg
-1.
3. diesel fuel lubricity improving agent according to claim 1, is characterized in that, described lipid acid is one or more in ricinolic acid, Yatall MA, linoleic plus oleic acid.
4. diesel fuel lubricity improving agent according to claim 1, is characterized in that, described phosphoric acid ester is one or more in phosphoric acid isobutyl ester, iso octyl ester of phosphoric acid and phosphoric acid ester in the different ninth of the ten Heavenly Stems.
5. the application of diesel fuel lubricity improving agent in diesel oil described in any one of Claims 1-4 claim, is characterized in that, the addition of described diesel fuel lubricity improving agent in diesel oil is 70 ~ 100 μ g/g.
6. the application of diesel fuel lubricity improving agent according to claim 5 in diesel oil, is characterized in that, the addition of described diesel fuel lubricity improving agent in diesel oil is 80 ~ 100 μ g/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410516662.4A CN104312646A (en) | 2014-09-30 | 2014-09-30 | Diesel oil lubricity improver and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410516662.4A CN104312646A (en) | 2014-09-30 | 2014-09-30 | Diesel oil lubricity improver and application thereof |
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| CN104312646A true CN104312646A (en) | 2015-01-28 |
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| CN201410516662.4A Pending CN104312646A (en) | 2014-09-30 | 2014-09-30 | Diesel oil lubricity improver and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108219873A (en) * | 2016-12-22 | 2018-06-29 | 付海明 | Composition of additive for diesel oil |
| CN114621801A (en) * | 2022-04-18 | 2022-06-14 | 淄博凯美可工贸有限公司 | Fatty acid type diesel antiwear agent and production method thereof |
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| CN1039438A (en) * | 1988-07-19 | 1990-02-07 | 国际润滑剂公司 | Vegetable oil derivatives as slip additive |
| CN101962587A (en) * | 2009-07-24 | 2011-02-02 | 上海友豪化工有限公司 | Low-sulfur diesel lubricity improver and preparation method thereof |
| CN103314084A (en) * | 2010-10-26 | 2013-09-18 | 卡斯特罗尔有限公司 | Non-aqueous lubricant and fuel compositions comprising fatty acid esters of hydroxy- carboxylic acids, and uses thereof |
| CN103436306A (en) * | 2013-07-19 | 2013-12-11 | 济南开发区星火科学技术研究院 | Fuel oil composition |
-
2014
- 2014-09-30 CN CN201410516662.4A patent/CN104312646A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039438A (en) * | 1988-07-19 | 1990-02-07 | 国际润滑剂公司 | Vegetable oil derivatives as slip additive |
| CN101962587A (en) * | 2009-07-24 | 2011-02-02 | 上海友豪化工有限公司 | Low-sulfur diesel lubricity improver and preparation method thereof |
| CN103314084A (en) * | 2010-10-26 | 2013-09-18 | 卡斯特罗尔有限公司 | Non-aqueous lubricant and fuel compositions comprising fatty acid esters of hydroxy- carboxylic acids, and uses thereof |
| CN103436306A (en) * | 2013-07-19 | 2013-12-11 | 济南开发区星火科学技术研究院 | Fuel oil composition |
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| Title |
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| 王先会: "《工业润滑油生产与应用》", 31 January 2011, 中国石化出版社 * |
| 钱建华: "《油品腐蚀与防护》", 30 April 2012 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108219873A (en) * | 2016-12-22 | 2018-06-29 | 付海明 | Composition of additive for diesel oil |
| CN108219873B (en) * | 2016-12-22 | 2020-04-21 | 付海明 | Diesel fuel additive composition |
| CN114621801A (en) * | 2022-04-18 | 2022-06-14 | 淄博凯美可工贸有限公司 | Fatty acid type diesel antiwear agent and production method thereof |
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Application publication date: 20150128 |
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