阅读说明：本技术 一种高效复配型柴油降凝剂组合物及其制备方法与应用 (A kind of highly efficiency compositional type diesel oil pour point reducer composition and the preparation method and application thereof ) 是由 韩生 杨太顺 苏保婷 陈凤飞 解麦莹 殷素雅 蔺华林 黄燕山 薛原 于 2019-08-13 设计创作，主要内容包括：本发明涉及一种高效复配型柴油降凝剂组合物及其制备方法与应用,组合物包括以下组分及重量份含量：非离子表面活性剂40-60份、EVA降凝剂40-60份,其中非离子表面活性剂包括以下组分及重量份含量：烷基酚聚氧乙烯聚氧丙烯醚0-50份、丙三醇无规聚醚0-50份；制备方法为：将非离子表面活性剂与EVA降凝剂混合均匀,即得到高效复配型柴油降凝剂组合物；将柴油中加入0.1-0.2wt％的柴油降凝剂组合物,在35-45℃下超声处理25-35min,得到低温流动性较好的柴油制品。与现有技术相比,本发明中组合物制备工艺简单,操作方便,效果明显；本发明可有效改善柴油的低温流动性,使柴油冷凝温度降低10-12℃,冷滤点降低13-15℃。(The present invention relates to a kind of highly efficiency compositional type diesel oil pour point reducer compositions and the preparation method and application thereof, composition includes following components and parts by weight content: 40-60 parts of nonionic surfactant, 40-60 parts of EVA pour-point depressant, wherein nonionic surfactant includes following components and parts by weight content: 0-50 parts of alkylphenol-polyethenoxy polyethenoxy ether, 0-50 parts of glycerine atactic polyether；The preparation method comprises the following steps: being uniformly mixed nonionic surfactant with EVA pour-point depressant to get highly efficiency compositional type diesel oil pour point reducer composition is arrived；The diesel oil pour point reducer composition of 0.1-0.2wt% will be added in diesel oil, is ultrasonically treated 25-35min at 35-45 DEG C, obtains the preferable diesel oil product of low temperature flow.Compared with prior art, composition preparation process is simple in the present invention, and easy to operate, effect is obvious；The present invention can be effectively improved the low temperature flow of diesel oil, reduce diesel oil condensation temperature by 10-12 DEG C, cold filter plugging point reduces 13-15 DEG C.)

1. a kind of highly efficiency compositional type diesel oil pour point reducer composition, which is characterized in that the diesel oil pour point reducer composition includes with the following group Point and parts by weight content: 40-60 parts of nonionic surfactant, 40-60 parts of EVA pour-point depressant.

2. a kind of highly efficiency compositional type diesel oil pour point reducer composition according to claim 1, which is characterized in that it is described it is non-from Sub- surfactant includes one or both of alkylphenol-polyethenoxy polyethenoxy ether or glycerine atactic polyether.

3. a kind of highly efficiency compositional type diesel oil pour point reducer composition according to claim 2, which is characterized in that it is described it is non-from Sub- surfactant includes following components and parts by weight content: 0-50 parts of alkylphenol-polyethenoxy polyethenoxy ether, glycerine without Rule polyethers 0-50 parts, the alkylphenol-polyethenoxy polyethenoxy ether, glycerine atactic polyether parts by weight content difference when It is 0.

4. a kind of highly efficiency compositional type diesel oil pour point reducer composition according to claim 3, which is characterized in that the alkyl The trade names of phenol polyethenoxy polyethenoxy ether are APEP-105, and the trade names of the glycerine atactic polyether are GPE- 3000。

5. a kind of highly efficiency compositional type diesel oil pour point reducer composition according to claim 1, which is characterized in that the EVA In pour-point depressant, ethylene-vinyl acetate co-polymer mass percentage is 20-30%.

6. a kind of preparation method of such as highly efficiency compositional type diesel oil pour point reducer composition described in any one of claim 1 to 5, special Sign is, this method are as follows: is uniformly mixed with EVA pour-point depressant nonionic surfactant to get to the highly efficiency compositional type Diesel oil pour point reducer composition.

7. a kind of application of such as highly efficiency compositional type diesel oil pour point reducer composition described in any one of claim 1 to 5, feature exist In the diesel oil pour point reducer composition being added into diesel oil, to improve the low temperature flow of diesel oil.

8. a kind of application of highly efficiency compositional type diesel oil pour point reducer composition according to claim 7, which is characterized in that described Diesel oil in be added 0.1-0.2wt% diesel oil pour point reducer composition.

9. a kind of application of highly efficiency compositional type diesel oil pour point reducer composition according to claim 7, which is characterized in that by institute The diesel oil pour point reducer composition stated is added into diesel oil, carries out ultrasonic mixing processing later.

10. a kind of application of highly efficiency compositional type diesel oil pour point reducer composition according to claim 9, which is characterized in that institute In the ultrasonic mixing treatment process stated, temperature is 35-45 DEG C, time 25-35min.

Technical field

The invention belongs to diesel pour inhibitor technical field, it is related to a kind of highly efficiency compositional type diesel oil pour point reducer composition and its system Preparation Method and application.

Background technique

Diesel oil is the core drive of a national development economy, and the economy of high speed development be unable to do without the support of the energy.Diesel oil The content and type of middle n-alkane and the low temperature flow of diesel oil are closely related, under cryogenic, the N-alkanes in diesel oil Hydrocarbon solubility constantly reduces, and is constantly precipitated in the form of crystal, so that the mobile performance of diesel oil is deteriorated.

The method for improving diesel low-temperature liquidity has very much, and one of method is addition pour-point depressant method, because of its operation side Just, few, at low cost and as the improvement diesel low-temperature liquidity prefered method of pour-point depressant dosage.Existing pour-point depressant includes poly- first Base acrylic polymer, maleic anhydride quasi polymer, ethylene-vinyl acetate quasi polymer (EVA) etc..Above-mentioned pour-point depressant Although the low temperature flow of diesel oil can be improved to a certain extent, its depression effeCt is still not ideal enough, the impression to diesel oil Property is single.

Summary of the invention

It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of highly efficiency compositional type bavins Oily pour point reducer composition and the preparation method and application thereof.

The purpose of the present invention can be achieved through the following technical solutions:

A kind of highly efficiency compositional type diesel oil pour point reducer composition, including following components and parts by weight content: non-ionic surface is living Property 40-60 parts of agent, 40-60 parts of EVA pour-point depressant.

If the parts by weight content of nonionic surfactant or EVA pour-point depressant is higher than upper limit value or is lower than lower limit value, group Closing another concentration of component in object reduces, without enough concentration to give full play to its pour-point depressing process；The content of EVA pour-point depressant is very It is important, the maximum depression effeCt of competence exertion only under appropriate content.

Further, the nonionic surfactant include alkylphenol-polyethenoxy polyethenoxy ether or glycerine without Advise one or both of polyethers.Nonionic surfactant selects alkylphenol-polyethenoxy polyethenoxy ether and glycerine random Polyethers has hydrophilic polar group and oleophylic alkyl, enhances dispersibility, solubilising and infiltration of the pour point depression agent molecule in diesel oil Property, so that pour point depression agent molecule is preferably dispersed and is dissolved in diesel oil.

Further, the nonionic surfactant includes following components and parts by weight content: alkyl phenol polyoxy second 0-50 parts of alkene polyethenoxy ether, 0-50 parts of glycerine atactic polyether, the alkylphenol-polyethenoxy polyethenoxy ether, glycerine The parts by weight content of atactic polyether is not 0 simultaneously.

Further, the trade names of the alkylphenol-polyethenoxy polyethenoxy ether be APEP-105, described third The trade names of triol atactic polyether are GPE-3000.

Further, in the EVA pour-point depressant, ethylene-vinyl acetate co-polymer mass percentage is 20- 30%, preferably 25%.

A kind of preparation method of highly efficiency compositional type diesel oil pour point reducer composition as described above, this method are as follows: by nonionic Surfactant is uniformly mixed to arrive the highly efficiency compositional type diesel oil pour point reducer composition with EVA pour-point depressant.Using direct The highly efficiency compositional type diesel oil pour point reducer composition can be quickly made in mixed mode.

The diesel pour inhibitor is combined in a kind of application of highly efficiency compositional type diesel oil pour point reducer composition as described above Object is added into diesel oil, to improve the low temperature flow of diesel oil, obtains the preferable diesel oil product of low temperature flow.The diesel oil Including Songjiang 0# diesel oil, middle petrochemical industry 0# diesel oil etc..

Further, the diesel oil pour point reducer composition of 0.1-0.2wt% is added in the diesel oil.

Further, the diesel oil pour point reducer composition is added into diesel oil, carries out ultrasonic mixing processing later.

Further, in the ultrasonic mixing treatment process, temperature is 35-45 DEG C, time 25-35min.

Diesel oil pour point reducer composition additional amount be higher than upper limit value when, excessive pour point depression agent molecule itself carry out crystallization formed compared with Little particle hinders the n-alkane cocrystallization in pour point depression agent molecule and diesel oil, is unfavorable for diesel oil and flows at low temperature；If additional amount When lower than lower limit value, diesel pour inhibitor molecule is difficult to form cocrystallization between the wax of diesel oil crystalline substance.Ultrasonic temperature or ultrasonic time Higher than upper limit value or it is lower than lower limit value, composition can be dispersed unevenly, only in a certain range, just to make to drop in diesel oil Solidifying agent is uniformly dissolved in diesel oil.

In the present invention, EVA pour-point depressant relies primarily on nonpolar long chain vinyl base and forms eutectic, polarity ester to the absorption of wax crystalline substance Inhibition that base adsorbs wax crystalline substance and nucleation achieve the effect that reduce cold filter plugging point.

In the present invention, the alkylphenol-polyethenoxy polyethenoxy ether and glycerine that Composed of Non-ionic Surfactant is selected are random Polyethers, it is cheap compared with other surfactants, it is easy to get, no generation harmful pollution is compounded with EVA pour-point depressant, Synergistic effect is played, low temperature flow is improved.Wherein VA is that polar portion increases to reduce fusing point in EVA pour-point depressant Dissolubility of the EVA in diesel oil and the growth for inhibiting wax crystalline substance；And nonionic surfactant has the function of dispersion and solubilising, The binding force between wax molecule can be made to reduce, wax crystalline substance is dispersed in diesel oil well, reaches depression effeCt.

Compared with prior art, the invention has the characteristics that:

1) present invention can be effectively improved the low temperature flow of diesel oil, reduce diesel oil condensation temperature by 10-12 DEG C, cold filter plugging point drop Low 13-15 DEG C；

2) composition preparation process is simple in the present invention, and easy to operate, effect is obvious.

Specific embodiment

The present invention is described in detail combined with specific embodiments below.The present embodiment is based on the technical solution of the present invention Implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention be not limited to it is following Embodiment.