CN103484177A - Low-temperature fluidity improver composition of diesel oil and preparation method of low-temperature fluidity improver composition - Google Patents
Low-temperature fluidity improver composition of diesel oil and preparation method of low-temperature fluidity improver composition Download PDFInfo
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- CN103484177A CN103484177A CN201310474689.7A CN201310474689A CN103484177A CN 103484177 A CN103484177 A CN 103484177A CN 201310474689 A CN201310474689 A CN 201310474689A CN 103484177 A CN103484177 A CN 103484177A
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Abstract
The invention discloses a low-temperature fluidity improver composition of diesel oil and a preparation method of the low-temperature fluidity improver composition. The low-temperature fluidity improver composition of diesel oil comprises methyl acrylate which accounts for 10-40% of the mass percent of the low-temperature fluidity improver composition of diesel oil, isooctanol which accounts for 2-30% of the mass percent of the low-temperature fluidity improver composition of diesel oil, triethanolamine which accounts for 8-40% of the mass percent of the low-temperature fluidity improver composition of diesel oil, and a polyisobutylene succinimide dispersant which accounts for 5-30% of the mass percent of the low-temperature fluidity improver composition of diesel oil. In combination with the preparation method of the low-temperature fluidity improver composition of diesel oil, the low-temperature fluidity improver composition of diesel oil can overcome the defects that a product at present is insufficient in adaptability and can not adapt to all types of diesel oil due to high dependence on diesel oil components in the prior art, can be widely applied to commercially available diesel oil and is obvious in application effect.
Description
Technical field
The invention belongs to petrochemical industry, be specifically related to a kind of low temperature flow promoter composition and method of making the same of diesel oil.
Background technology
Condensation point (SP) and cold filter clogging temperature (CFPP) are the important indicators that characterizes the diesel oil at low-temperature use properties.Condensation point is the top temperature that shows that diesel oil loses flowability in low temperature environment; Cold filter clogging temperature can cause the top temperature of filter net jam in the time of can showing diesel oil by diesel engine oil supply system.
Diesel oil solidifies at a lower temperature, is that when temperature reduces, these normal paraffins can be separated out gradually owing to containing a certain proportion of wax (being normal paraffin) in diesel oil, and forms the wax crystalline substance.Along with the further reduction of temperature, the wax crystalline substance can be grown up rapidly, at first forms plane crystallization, and these crystallizations interconnect, so that form tridimensional network, oil is wrapped in wherein, oil is lost flowability and present curdled appearance.
Diesel engine is when work, and the diesel oil warp is thick, fine cleaner, then is injected into cylinder through high-pressure pump, oil nozzle.When diesel fuel temperature is down to the cold filter clogging temperature temperature, formed wax crystalline substance will block purifier and pipeline and affect the normal fuel injection of oil circuit, and then affects the work of engine.
After adding pour point depressant in diesel oil, when temperature reduces, during the brilliant firm formation of wax, pour point depressant will play effect and the wax crystalline substance of nucleator and jointly separate out or be adsorbed on the brilliant surface of wax, stoped the mutually bonding of wax intergranular, prevent from generating continuous crystallization net, make the brilliant particle of wax trickleer, can pass through well filter screen.This destruction of pour point depressant or change the function of wax crystallization, just can reduce cold filter clogging temperature and the condensation point of diesel oil.
At present the existing problems of Copolymer As Diesel Fuel Cold Flow Improver are high to the dependency degree of diesel component, thereby current product all is faced with the adaptability deficiency, can't adapt to the shortcoming of all diesel oil.
Summary of the invention
The invention provides a kind of low temperature flow promoter composition and method of making the same of diesel oil, the low temperature flow promoter composition of described diesel oil comprises the methyl acrylate that the mass percent scope of the low temperature flow promoter composition that occupies diesel oil is 10 ~ 40%, the isooctyl alcohol that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 2 ~ 30%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 8 ~ 40%, the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 5 ~ 30% forms.And it is high to overcome the dependency degree to diesel component of the prior art in conjunction with its preparation method, thereby current product all is faced with the adaptability deficiency, can't adapt to the shortcoming of all diesel oil, and can be widely used in market diesel oil, and effect is obvious.
For achieving the above object, technical scheme of the present invention is:
A kind of low temperature flow promoter composition of diesel oil, the low temperature flow promoter composition of described diesel oil comprises the methyl acrylate that the mass percent scope of the low temperature flow promoter composition that occupies diesel oil is 10 ~ 40%, the isooctyl alcohol that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 2 ~ 30%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 8 ~ 40%, the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 5 ~ 30% forms.
The methyl acrylate that the preparation method of the low temperature flow promoter composition of described diesel oil is 10 ~ 40% for the mass percent scope according to the low temperature flow promoter composition that occupies diesel oil, the isooctyl alcohol that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 2 ~ 30%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 8 ~ 40%, the standard of the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 5 ~ 30% takes respectively methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material that trolamine and polyisobutene succinimide dispersion agent form mixes, then under the condition that is 50～80 ℃ in temperature range, stirred, the churning time scope is 30～60min, stir after finishing the low temperature flow promoter composition that has just obtained diesel oil.
Take the low temperature flow promoter composition of diesel oil of the present invention, the low temperature flow promoter composition of this diesel oil is added in diesel oil, can make its cold filter clogging temperature reduce by 4 ~ 13 ℃, the low temperature flow promoter of diesel oil of the present invention has improved the dissemination of pour point depressant to the wax crystalline substance, improves the low-temperature fluidity of diesel fuel oil.
Embodiment
Below by specific embodiment, the present invention will be further described:
Embodiment 1:
The low temperature flow promoter composition of diesel oil, the low temperature flow promoter composition of described diesel oil comprises methyl acrylate that the mass percent of the low temperature flow promoter composition that occupies diesel oil is 35%, occupy isooctyl alcohol that the mass percent of the low temperature flow promoter composition of diesel oil is 15%, occupy trolamine that the mass percent of the low temperature flow promoter composition of diesel oil is 25%, occupy the polyisobutene succinimide dispersion agent that the mass percent of the low temperature flow promoter composition of diesel oil is 25% forms.
The methyl acrylate that the preparation method of the low temperature flow promoter composition of described diesel oil is 35% for the mass percent according to the low temperature flow promoter composition that occupies diesel oil, the isooctyl alcohol that the mass percent of occupying the low temperature flow promoter composition of diesel oil is 15%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 25%, the standard of the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 25% takes respectively methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material that trolamine and polyisobutene succinimide dispersion agent form mixes, then under the condition that is 50 ℃ in temperature range, stirred, the churning time scope is 60min, stir after finishing the low temperature flow promoter composition that has just obtained diesel oil.
Embodiment 2:
The low temperature flow promoter composition of diesel oil, the low temperature flow promoter composition of described diesel oil comprises methyl acrylate that the mass percent of the low temperature flow promoter composition that occupies diesel oil is 25%, occupy isooctyl alcohol that the mass percent of the low temperature flow promoter composition of diesel oil is 20%, occupy trolamine that the mass percent of the low temperature flow promoter composition of diesel oil is 35%, occupy the polyisobutene succinimide dispersion agent that the mass percent of the low temperature flow promoter composition of diesel oil is 20% forms.
The methyl acrylate that the preparation method of the low temperature flow promoter composition of described diesel oil is 25% for the mass percent according to the low temperature flow promoter composition that occupies diesel oil, the isooctyl alcohol that the mass percent of occupying the low temperature flow promoter composition of diesel oil is 20%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 35%, the standard of the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 20% takes respectively methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material that trolamine and polyisobutene succinimide dispersion agent form mixes, then under the condition that is 70 ℃ in temperature range, stirred, the churning time scope is 40min, stir after finishing the low temperature flow promoter composition that has just obtained diesel oil.
Embodiment 3:
The low temperature flow promoter composition of diesel oil, the low temperature flow promoter composition of described diesel oil comprises methyl acrylate that the mass percent of the low temperature flow promoter composition that occupies diesel oil is 15%, occupy isooctyl alcohol that the mass percent of the low temperature flow promoter composition of diesel oil is 30%, occupy trolamine that the mass percent of the low temperature flow promoter composition of diesel oil is 15%, occupy the polyisobutene succinimide dispersion agent that the mass percent of the low temperature flow promoter composition of diesel oil is 40% forms.
The methyl acrylate that the preparation method of the low temperature flow promoter composition of described diesel oil is 15% for the mass percent according to the low temperature flow promoter composition that occupies diesel oil, the isooctyl alcohol that the mass percent of occupying the low temperature flow promoter composition of diesel oil is 30%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 15%, the standard of the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 40% takes respectively methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material that trolamine and polyisobutene succinimide dispersion agent form mixes, then under the condition that is 80 ℃ in temperature range, stirred, the churning time scope is 30min, stir after finishing the low temperature flow promoter composition that has just obtained diesel oil.
The low temperature flow promoter composition of the diesel oil that the present embodiment 1-3 is obtained adds in diesel oil and surveys cold filter clogging temperature by 200ppm, and compares with the condensation point of blank diesel oil, and result is as shown in table 1:
The above; only the embodiment that the present invention is directed to the inventive method; above-described embodiment is not done any restriction to the present invention; every scope given according to technical solution of the present invention and any simple modification made for any of the above embodiments, change and equivalent structure are changed, all still belong to the protection domain of technical solution of the present invention.
Claims (2)
1. the low temperature flow promoter composition of a diesel oil, the low temperature flow promoter composition that it is characterized in that described diesel oil comprises the methyl acrylate that the mass percent scope of the low temperature flow promoter composition that occupies diesel oil is 10 ~ 40%, the isooctyl alcohol that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 2 ~ 30%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 8 ~ 40%, the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 5 ~ 30% forms.
2. the preparation method of the low temperature flow promoter composition of diesel oil according to claim 1, it is characterized by the methyl acrylate that the mass percent scope according to the low temperature flow promoter composition that occupies diesel oil is 10 ~ 40%, the isooctyl alcohol that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 2 ~ 30%, the trolamine that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 8 ~ 40%, the standard of the polyisobutene succinimide dispersion agent that the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is 5 ~ 30% takes respectively methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material that trolamine and polyisobutene succinimide dispersion agent form mixes, then under the condition that is 50～80 ℃ in temperature range, stirred, the churning time scope is 30～60min, stir after finishing the low temperature flow promoter composition that has just obtained diesel oil.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362498A (en) * | 2001-11-17 | 2002-08-07 | 中国石油化工集团公司 | Low temperature flowing additive for diesel oil |
| CN101717673A (en) * | 2009-11-20 | 2010-06-02 | 北京兆牌科技发展有限公司 | Low-temperature fluidity improver for diesel fuel and method for preparing same |
| CN102766491A (en) * | 2012-08-08 | 2012-11-07 | 黄河三角洲京博化工研究院有限公司 | Low-temperature fluidity improver for diesel oil |
| CN103289760A (en) * | 2013-05-16 | 2013-09-11 | 黄河三角洲京博化工研究院有限公司 | Pour point depressant for diesel oil |
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- 2013-10-12 CN CN201310474689.7A patent/CN103484177B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362498A (en) * | 2001-11-17 | 2002-08-07 | 中国石油化工集团公司 | Low temperature flowing additive for diesel oil |
| CN101717673A (en) * | 2009-11-20 | 2010-06-02 | 北京兆牌科技发展有限公司 | Low-temperature fluidity improver for diesel fuel and method for preparing same |
| CN102766491A (en) * | 2012-08-08 | 2012-11-07 | 黄河三角洲京博化工研究院有限公司 | Low-temperature fluidity improver for diesel oil |
| CN103289760A (en) * | 2013-05-16 | 2013-09-11 | 黄河三角洲京博化工研究院有限公司 | Pour point depressant for diesel oil |
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