CN1422936A - Diesel fuel pour point reducer - Google Patents
Diesel fuel pour point reducer Download PDFInfo
- Publication number
- CN1422936A CN1422936A CN 01135210 CN01135210A CN1422936A CN 1422936 A CN1422936 A CN 1422936A CN 01135210 CN01135210 CN 01135210 CN 01135210 A CN01135210 A CN 01135210A CN 1422936 A CN1422936 A CN 1422936A
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- Prior art keywords
- diesel
- diesel oil
- oil
- pour point
- pour
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- Liquid Carbonaceous Fuels (AREA)
- Lubricants (AREA)
Abstract
The invention is a diesel-oil de-coagulating agent, a fuel additive. Its main components include propencil C18 alcohol ester anhydride Maleate copolymerization and advanced alcohol polyacrylate, and it is made by the repeated preparation and mixing. It can be used to produce the low-grade diesel oil such as -No.5, -No.10, -No.20, -No.35 and so on.
Description
Technical field
The present invention is a kind of with vinylformic acid C
18Alcohol ester-copolymer-maleic anhydride, polyacrylic acid high-order alcohol ester be raw material, by the composite diesel pour inhibitor that mixes, be applicable to low grade diesel oil such as production-No. 5 ,-No. 10 ,-No. 20 ,-No. 35.
Background technology
Diesel engine has many good qualities than petrol motor, so the application of diesel engine in countries in the world increase, and the absolute magnitude of diesel oil demand and relative quantity (bavin/vapour than) are also increasing accordingly simultaneously.The bavin in China's oil market/vapour ratio will further improve by inference, and the rate of growth of diesel oil demand will be higher by about 10% than gasoline.Diesel oil is as energy-saving fuel, and demand constantly increases, and makes the research of low-temperature fluidity of diesel oil seem particularly important.
Diesel pour inhibitor has been subjected to increasing attention as one of means of improving the diesel oil at low-temperature flowability.Diesel pour inhibitor began to use in industry in nineteen sixty, the latter half sixties, the American-European low-temperature performance that is used to improve motor vehicle diesel with the low temperature flow promoter success.The seventies, the development of diesel pour inhibitor obtained strong promotion because world's oil price rise causes refinery when refining diesel oil, and the boiling range of relaxing cut is mixed the suitable petroleum fraction of making diesel oil, causes the diesel oil at low-temperature degradation.The U.S. has reached the peak at the patent number of this application in period.USSR (Union of Soviet Socialist Republics) begins to pay attention to the work of diesel pour inhibitor from the seventies, and the Japan in Asia, Korea S and middle east have also begun to add the production of agent diesel oil in the eighties.
China has begun research to pour point depressant from the initial stage fifties, mainly is the development and the production of pour depressant for lubricating oil, just begins the research of diesel pour inhibitor the sixties.Adding agent diesel oil the eighties begins to produce use at refinery.At present, the pour point depressant of domestic production has T (803) pour point depressant that Lanzhou oil-refining chemical head factory additive factory produces; The T---1805 diesel pour inhibitor that No.2 Petroleum Factory, Fushun Petro-chemical Corp produces; The T---1804 agent for improving flowability of diesel oil that Beijing Organic Chemical Plant produces.But these pour point depressants all make diesel oil reduce condensation point at 5---10 ℃.Therefore the present pour point depressant of China still is based on import, and exploitation home-made, the pour point depressant that performance is good seem particularly important.
Summary of the invention
The objective of the invention is: prepare a kind of high performance diesel pour inhibitor, can obviously improve the low temperature flowability of diesel oil, be used for production and wait low grade diesel oil.
The realization of the object of the invention: the main component of this diesel pour inhibitor is vinylformic acid C
18Alcohol ester-copolymer-maleic anhydride, polyacrylic acid high-order alcohol ester according to 1: 1.5～3 ratio, at normal temperatures, are mixed with diesel pour inhibitor through fully mixing with these raw materials.
The present invention mainly reaches the purpose that reduces condensation point of diesel oil by following action principle: since in the diesel oil carbon number of institute's hydrocarbonaceous between 10～20, according to pour point depressant mechanism, side chain lengths must be close with content of wax composition in the oil product, just help the two eutectic, and the side chain lengths of the ester that is added is close with the principal constituent in the oil product, just helps solvation.The present invention contains the homopolymer and the senior mixed ester C of polymer unsaturated olefin
12～C
18In content of wax diesel oil, add a spot of this pour point depressant, just can change wax crystallization form and structure in the diesel oil significantly, make it be difficult for forming network structure at low temperatures, thereby reduce the zero pour of diesel oil, viscosity during low temperature and yield value, the convenient content of wax diesel oil of under low temperature environment, effectively carrying.
By following examples the present invention is done further argumentation:
Embodiment 1: get vinylformic acid C according to weight percent
18Alcohol ester-copolymer-maleic anhydride 40%, polyacrylic acid high-order alcohol ester 60% stirs, fully at normal temperatures, can obtain diesel pour inhibitor.
Embodiment 2: get vinylformic acid C according to weight percent
18Alcohol ester-copolymer-maleic anhydride 25%, polyacrylic acid high-order alcohol ester 75% stirs, fully at normal temperatures, can obtain diesel pour inhibitor.
Using method of the present invention is: add thousandth and put five diesel pour inhibitors condensation point is descended below 15 ℃ in No. 0 diesel oil.The pour point depression effect is better than T (803) pour point depressant, the T---1805 diesel pour inhibitor of No.2 Petroleum Factory, Fushun Petro-chemical Corp's production and the T---1804 agent for improving flowability of diesel oil that Beijing Organic Chemical Plant produces that Lanzhou oil-refining chemical head factory additive factory produces.
This diesel pour inhibitor has carried out industrial amplification test, No. 0 diesel oil is added this furnishing-No. 5 ,-No. 10 ,-No. 20 ,-No. 35 diesel oil, through refinery quality test section assay, its every index meets national standard fully, experimental results show that its use properties and do not add agent diesel oil suitable through cold start-up, Han Qu driving.Production technique is simple, reliable in quality.
Claims (1)
- The present invention relates to a kind of diesel pour inhibitor, be used to improve the low temperature flowability of diesel oil.The major technique feature of this agent is: with raw material propylene acid C 18Alcohol ester-copolymer-maleic anhydride, polyacrylic acid high-order alcohol ester, the ratio according to 1: 1.5～3 at normal temperatures, fully mixes, and is mixed with diesel pour inhibitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01135210 CN1422936A (en) | 2001-12-03 | 2001-12-03 | Diesel fuel pour point reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01135210 CN1422936A (en) | 2001-12-03 | 2001-12-03 | Diesel fuel pour point reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1422936A true CN1422936A (en) | 2003-06-11 |
Family
ID=4673040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01135210 Pending CN1422936A (en) | 2001-12-03 | 2001-12-03 | Diesel fuel pour point reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1422936A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928611A (en) * | 2009-06-22 | 2010-12-29 | 北京红豪特高科技发展有限公司 | Novel diesel oil anticoagulant |
| CN101691507B (en) * | 2009-10-15 | 2012-10-03 | 济南开发区星火科学技术研究院 | Diesel pour point depressant and preparation method thereof |
-
2001
- 2001-12-03 CN CN 01135210 patent/CN1422936A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928611A (en) * | 2009-06-22 | 2010-12-29 | 北京红豪特高科技发展有限公司 | Novel diesel oil anticoagulant |
| CN101691507B (en) * | 2009-10-15 | 2012-10-03 | 济南开发区星火科学技术研究院 | Diesel pour point depressant and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |