CN103484177B - 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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- CN103484177B CN103484177B CN201310474689.7A CN201310474689A CN103484177B CN 103484177 B CN103484177 B CN 103484177B CN 201310474689 A CN201310474689 A CN 201310474689A CN 103484177 B CN103484177 B CN 103484177B
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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 characterizing diesel oil at low-temperature use properties.Condensation point is the top temperature showing that diesel oil loses flowability in low temperature environment; Cold filter clogging temperature then can show that diesel oil is by causing the top temperature of filter net jam during diesel engine oil supply system.
Diesel oil solidifies at a lower temperature, is that when the temperature decreases, these normal paraffins can be separated out gradually, and form wax crystalline substance owing to containing a certain proportion of wax (i.e. normal paraffin) in diesel oil.Along with the further reduction of temperature, wax crystalline substance can be grown up rapidly, first forms plane crystallization, and these crystallizations interconnect, so that form tridimensional network, oil is wrapped in wherein, makes oil lose flowability and present curdled appearance.
Operationally, diesel oil through thick, fine cleaner, then is injected into cylinder through high-pressure pump, oil nozzle to diesel engine.When diesel fuel temperature is down to cold filter clogging temperature temperature, the wax that formed 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 firm formation of wax crystalline substance, pour point depressant will play the effect of nucleator and wax crystalline substance separates out or be adsorbed on the brilliant surface of wax jointly, prevent the mutually bonding of wax intergranular, prevent from generating continuous print crystallization net, make wax recovery trickleer, filter screen can be passed through well.The function of this destruction of pour point depressant or change wax crystallization, just can reduce cold filter clogging temperature and the condensation point of diesel oil.
The existing problems of current Copolymer As Diesel Fuel Cold Flow Improver are high to the dependency degree of diesel component, and thus current product is all faced with adaptability deficiency, cannot 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 mass percent scope that the low temperature flow promoter composition of described diesel oil comprises the low temperature flow promoter composition occupying diesel oil is the methyl acrylate of 10 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 2 ~ 30%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 8 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the polyisobutene succinimide dispersion agent composition of 5 ~ 30%.And it is high to overcome the dependency degree to diesel component of the prior art in conjunction with its preparation method, thus current product is all faced with adaptability deficiency, cannot 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 mass percent scope that the low temperature flow promoter composition of described diesel oil comprises the low temperature flow promoter composition occupying diesel oil is the methyl acrylate of 10 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 2 ~ 30%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 8 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the polyisobutene succinimide dispersion agent composition of 5 ~ 30%.
The preparation method of the low temperature flow promoter composition of described diesel oil is be the methyl acrylate of 10 ~ 40% according to the mass percent scope of the low temperature flow promoter composition occupying diesel oil, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 2 ~ 30%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 8 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is that the standard scores another name of the polyisobutene succinimide dispersion agent of 5 ~ 30% gets methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material of trolamine and polyisobutene succinimide dispersion agent composition mixes, then be stir under the condition of 50 ~ 80 DEG C in temperature range, churning time scope is 30 ~ 60min, stir the low temperature flow promoter composition just obtaining diesel oil after terminating.
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, its cold filter clogging temperature can be made to reduce by 4 ~ 13 DEG C, the low temperature flow promoter of diesel oil of the present invention improves the dissemination of pour point depressant to 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 polyisobutene succinimide dispersion agent composition that the trolamine that the isooctyl alcohol that the methyl acrylate that the mass percent that the low temperature flow promoter composition of described diesel oil comprises the low temperature flow promoter composition occupying diesel oil is 35%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 15%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 25%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 25%.
The preparation method of the low temperature flow promoter composition of described diesel oil is be the methyl acrylate of 35% according to the mass percent of the low temperature flow promoter composition occupying diesel oil, the mass percent of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 15%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 25%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is that the standard scores another name of the polyisobutene succinimide dispersion agent of 25% gets methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material of trolamine and polyisobutene succinimide dispersion agent composition mixes, then be stir under the condition of 50 DEG C in temperature range, churning time scope is 60min, stir the low temperature flow promoter composition just obtaining diesel oil after terminating.
Embodiment 2:
The low temperature flow promoter composition of diesel oil, the polyisobutene succinimide dispersion agent composition that the trolamine that the isooctyl alcohol that the methyl acrylate that the mass percent that the low temperature flow promoter composition of described diesel oil comprises the low temperature flow promoter composition occupying diesel oil is 25%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 20%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 35%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 20%.
The preparation method of the low temperature flow promoter composition of described diesel oil is be the methyl acrylate of 25% according to the mass percent of the low temperature flow promoter composition occupying diesel oil, the mass percent of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 20%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 35%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is that the standard scores another name of the polyisobutene succinimide dispersion agent of 20% gets methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material of trolamine and polyisobutene succinimide dispersion agent composition mixes, then be stir under the condition of 70 DEG C in temperature range, churning time scope is 40min, stir the low temperature flow promoter composition just obtaining diesel oil after terminating.
Embodiment 3:
The low temperature flow promoter composition of diesel oil, the polyisobutene succinimide dispersion agent composition that the trolamine that the isooctyl alcohol that the methyl acrylate that the mass percent that the low temperature flow promoter composition of described diesel oil comprises the low temperature flow promoter composition occupying diesel oil is 15%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 30%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 15%, the mass percent of occupying the low temperature flow promoter composition of diesel oil are 40%.
The preparation method of the low temperature flow promoter composition of described diesel oil is be the methyl acrylate of 15% according to the mass percent of the low temperature flow promoter composition occupying diesel oil, the mass percent of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 30%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 15%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is that the standard scores another name of the polyisobutene succinimide dispersion agent of 40% gets methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material of trolamine and polyisobutene succinimide dispersion agent composition mixes, then be stir under the condition of 80 DEG C in temperature range, churning time scope is 30min, stir the low temperature flow promoter composition just obtaining diesel oil after terminating.
The low temperature flow promoter composition of the diesel oil obtained by the present embodiment 1-3 adds in diesel oil by 200ppm surveys cold filter clogging temperature, and compares with the condensation point of blank diesel oil, and result is as shown in table 1:
The above; it is only the embodiment that the present invention is directed to the inventive method; above-described embodiment not does any restriction to the present invention; every scope given by technical solution of the present invention and to any simple modification made for any of the above embodiments, change and equivalent structure change, all still belongs to the protection domain of technical solution of the present invention.
Claims (2)
1. the low temperature flow promoter composition of a diesel oil, it is characterized in that the mass percent scope that the low temperature flow promoter composition of described diesel oil comprises the low temperature flow promoter composition occupying diesel oil is the methyl acrylate of 10 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 2 ~ 30%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 8 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the polyisobutene succinimide dispersion agent composition of 5 ~ 30%.
2. the preparation method of the low temperature flow promoter composition of diesel oil according to claim 1, it is characterized by according to the mass percent scope of the low temperature flow promoter composition occupying diesel oil is the methyl acrylate of 10 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the isooctyl alcohol of 2 ~ 30%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is the trolamine of 8 ~ 40%, the mass percent scope of occupying the low temperature flow promoter composition of diesel oil is that the standard scores another name of the polyisobutene succinimide dispersion agent of 5 ~ 30% gets methyl acrylate, isooctyl alcohol, trolamine and polyisobutene succinimide dispersion agent are as raw material, by methyl acrylate, isooctyl alcohol, the raw material of trolamine and polyisobutene succinimide dispersion agent composition mixes, then be stir under the condition of 50 ~ 80 DEG C in temperature range, churning time scope is 30 ~ 60min, stir the low temperature flow promoter composition just obtaining diesel oil after terminating.
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| CN201310474689.7A CN103484177B (en) | 2013-10-12 | 2013-10-12 | Low-temperature fluidity improver composition of diesel oil and preparation method of low-temperature fluidity improver composition |
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| CN201310474689.7A CN103484177B (en) | 2013-10-12 | 2013-10-12 | Low-temperature fluidity improver composition of diesel oil and preparation method of low-temperature fluidity improver composition |
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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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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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