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Surfactant compounded pour point depressant and preparation method and application thereof

A technique for surfactants and pour point depressants, which is applied in the field of compounded pour point depressants with surfactants and its preparation, can solve problems such as unsatisfactory pour point depressants, improve the pour point depressant effect, and the preparation method is simple and easy to improve The effect of ease of use

Inactive Publication Date: 2019-11-12
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its formula only uses conventional pour point depressants and esters for mixing and compounding, but it does not fundamentally change the problem of poor dispersion of existing pour point depressant products in diesel oil, and the final pour point depressant effect is not ideal

Method used

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  • Surfactant compounded pour point depressant and preparation method and application thereof
  • Surfactant compounded pour point depressant and preparation method and application thereof
  • Surfactant compounded pour point depressant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The measurement method of cold filter point in the present invention is carried out according to "SH / T0248-2006 Determination method of cold filter point of diesel oil and civil heating oil", and the measurement method of condensation point is carried out according to "GB510-83 Determination of freezing point of petroleum products".

[0030] Raw materials used in the following examples:

[0031]

[0032] The preparation method of polybenzyl methacrylate-maleic anhydride tetradecylamine used in the following examples comprises: 2g tetradecyl methacrylate-maleic anhydride binary copolymer is dissolved in 25ml toluene solvent, adds 3.8g aniline, The catalyst is 0.0464g of p-toluenesulfonic acid, the temperature is gradually raised to 110-120°C, and the amination reaction is carried out for 10 hours to obtain polytetradecyl methacrylate-maleic anhydride-aniline. The molecular Mw of polymer tested by GPC is 73542g / mol, and Mn is 45364g / mol, and Mw / Mn is 1.621, and product...

Embodiment 2

[0039] The surfactant compound pour point depressant in this embodiment is made up of the following components by weight percentage:

[0040]

[0041] The preparation method of the above-mentioned diesel oil surfactant composite pour point depressant is as follows: tetradecyl methacrylate-maleic anhydride-aniline, Span 80, Tween 60 and 1-methylnaphthalene are mixed in proportion at 25-40°C Mix and stir evenly at a certain temperature, and ultrasonically disperse for 15 minutes to obtain a surfactant compound pour point depressant.

[0042] The application of the above-mentioned surfactant compound pour point depressant in diesel oil pour point depressant, the ratio of surfactant compound pour point depressant: diesel oil, calculated by mass ratio, is preferably 1:200, and the diesel surfactant compound depressant Add the coagulant to the diesel oil at 40°C, mix and stir evenly, and disperse ultrasonically for 25 minutes to obtain the diesel oil containing the diesel surfact...

Embodiment 3

[0045] The surfactant compound pour point depressant in this embodiment is made up of the following components by weight percentage:

[0046]

[0047] The preparation method of the above-mentioned surfactant composite pour point depressant is as follows: tetradecyl methacrylate-maleic anhydride-aniline, Span 80, Tween 60 and 1-methylnaphthalene are mixed in proportion at 25-40°C Mix and stir evenly at high temperature, and ultrasonically disperse for 15 minutes to obtain the diesel pour point depressant composition.

[0048] The application of the above-mentioned surfactant compounded pour point depressant in diesel oil pour point depressant, the proportion of surfactant compounded pour point depressant: diesel oil, calculated by mass ratio, is preferably 1:200, and the surfactant compounded with diesel oil Add the pour point depressant to the diesel oil at a temperature of 40°C, mix and stir evenly, and disperse ultrasonically for 25 minutes to obtain the diesel oil contai...

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Abstract

The invention relates to a surfactant compounded pour point depressant. The surfactant compounded pour point depressant is prepared from the following components in percentage by mass: 40-60% of tetradecyl methacrylate-maleic anhydride-aniline, 10-30% of arlacel, 15-20% of tween and 10-20% of 1-methylnaphthalene. A preparation method of the surfactant compounded pour point depressant comprises thesteps: S1, all the components are mixed according to the proportion and evenly stirred, and thus a primary mixed solution is obtained; and S2, the primary mixed solution is dispersed again through anultrasonic generator, and thus the surfactant compounded pour point depressant is obtained. Compared with the prior art, the pour point depressant composition of diesel oil is wide in application range and can be suitable for all diesel oil in the current market, the dispersity of the pour point depressant in the 0# diesel oil available in the market can be improved, the condensation point of thediesel oil can be decreased by 20-26 DEG C, and the cold filter plugging point of the diesel oil can be decreased by 5-9 DEG C.

Description

technical field [0001] The invention relates to the technical field of oil performance improvement, in particular to a surfactant compound pour point depressant and its preparation method and application. Background technique [0002] Most of the diesel oil in my country is wax-containing diesel oil, especially in oil products with heavy fractions, the wax content is higher, and the composition, arrangement, and combination sequence of wax crystals are very important to the fluidity of diesel oil. [0003] Diesel pour point depressant, also known as diesel low-temperature flow performance improver, is an additive that can significantly reduce the freezing point and cold filter point of diesel and improve low-temperature flow performance of diesel by adding a small amount. The research on diesel oil pour point depressant is very important to increase the output of diesel oil, save kerosene, increase the ratio of diesel to gasoline and improve the economic benefit of refinery....

Claims

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Application Information

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IPC IPC(8): C10L1/2383C10L1/19C10L1/198C10L1/16C10L10/14C10L10/18
CPCC10L1/143C10L1/1608C10L1/19C10L1/1983C10L1/2383C10L10/14C10L10/18C10L2250/04C10L2270/026C10L2290/24C10L2290/34
Inventor 蔺华林解麦莹杨太顺陈凤飞殷素雅苏保婷张方薛原韩生周明安
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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