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Diesel oil pour point depressant composition and preparation method and application thereof

A diesel oil point depressant and composition technology, applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve problems such as unsatisfactory pour point depressant effects, achieve simple and easy preparation methods, improve dispersibility, and condense point Reduced effect

Inactive Publication Date: 2019-09-20
SHANGHAI INST OF TECH
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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 oil solubility of existing products, and the final pour point depressant effect is not ideal

Method used

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  • Diesel oil pour point depressant composition and preparation method and application thereof
  • Diesel oil pour point depressant composition and preparation method and application thereof
  • Diesel oil pour point depressant composition and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The measurement method of cold filter point in the embodiment of 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".

[0028] Raw materials used in this embodiment and other embodiments and comparative examples:

[0029]

[0030] The preparation method of polybenzyl methacrylate-maleic anhydride tetradecylamine used in this embodiment and other embodiments comprises: dissolving 2g of benzyl methacrylate-maleic anhydride binary copolymer in 25ml of toluene solvent, adding 8.7 g tetradecylamine, 0.0856g catalyst p-toluenesulfonic acid, gradually raise the temperature to 110-120°C, and carry out amination reaction for 10 hours to obtain polybenzyl methacrylate-maleic anhydride tetradecylamine. The molecular Mw of polymer tested by GPC is ...

Embodiment 2

[0038] The diesel oil pour point depressant composition in the present embodiment, it is made up of following mass percent components:

[0039] Polybenzyl methacrylate-tetradecylamine maleic anhydride 50％ toluene 25％ Polyethylene glycol 600 10％ Tween 60 15％

[0040] The preparation method of the above-mentioned pour point depressant composition for diesel oil is: polybenzyl methacrylate-tetradecyl maleic anhydride, toluene, polyethylene glycol 600 and Tween 60 are mixed in proportion at a temperature of 25-40°C Mix and stir evenly, and ultrasonically disperse for 15 minutes to obtain the diesel pour point depressant composition.

[0041] The application of the above-mentioned pour point depressant composition of diesel oil in diesel oil pour point depressant, the pour point depressant composition of diesel oil: the ratio of diesel oil, calculated by mass ratio, is preferably 1:200, the pour point depressant composition of diesel oil is added to...

Embodiment 3

[0044] The diesel oil pour point depressant composition in the present embodiment, it is made up of following mass percent components:

[0045] Polybenzyl methacrylate-tetradecylamine maleic anhydride 60％ toluene 10％ Polyethylene glycol 600 20％ Tween 60 10％

[0046] The preparation method of the above-mentioned pour point depressant composition for diesel oil is: polybenzyl methacrylate-tetradecyl maleic anhydride, toluene, polyethylene glycol 600 and Tween 60 are mixed in proportion at a temperature of 25-40°C Mix and stir evenly, and ultrasonically disperse for 15 minutes to obtain the diesel pour point depressant composition.

[0047] The application of the above-mentioned pour point depressant composition of diesel oil in diesel oil pour point depressant, the pour point depressant composition of diesel oil: the ratio of diesel oil, calculated by mass ratio, is preferably 1:200, the pour point depressant composition of diesel oil is added to...

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Abstract

The invention relates to a diesel oil pour point depressant composition. The diesel oil pour point depressant composition comprises, by mass, 40-60% of benzyl methacrylate-maleic anhydride tetradecylamine, 10-30% of benzene solvent, 5-20% of polyethylene glycol, 10-30% of Tween. A preparation method of the diesel oil pour point depressant composition includes: S1, evenly mixing the ingredients by stirring at a temperature of 25-40 DEG C to obtain a primary mixed solution; S2, dispersing the primary mixed solution with an ultrasonic generator to obtain the diesel oil pour point depressant composition. Compared with the prior art, the diesel oil pour point depressant composition has the advantages of wide application range and can be applied to all diesel oil in the current market, dispersity of the pour point depressant in 0# diesel oil sold in the market can be improved, a condensation point of the 0# diesel oil can be lowered by 20-25 DEG C, and a cold filter plugging point of the 0# diesel oil can be lowered by 6-11 DEG C.

Description

technical field [0001] The invention relates to the field of research and development of petrochemical energy additives, in particular to a diesel pour point depressant composition and a preparation method and application thereof. Background technique [0002] Diesel is a multi-component containing paraffin and ozokerite. When the temperature drops, wax crystals will be precipitated. As the temperature drops, the wax crystals will increase, and the wax crystal molecules will interact to form a three-dimensional network structure, making diesel oil lose its low-temperature fluidity. . However, diesel is a widely used petrochemical energy in my country, and improving the low-temperature fluidity of diesel is an urgent problem to be solved. Low temperature flow modifier is currently the easiest and most effective way to improve low temperature flow properties of diesel. [0003] Diesel pour point depressants are generally oil-soluble polymers, generally containing long alkane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/2383C10L1/16C10L1/195C10L1/198C10L10/14C10L10/18
CPCC10L1/143C10L1/1608C10L1/1955C10L1/1983C10L1/2383C10L10/14C10L10/18C10L2270/026C10L2290/24C10L2290/34
Inventor 蔺华林解麦莹殷素雅陈凤飞杨太顺苏保婷薛原韩生周明安刘金宝
Owner SHANGHAI INST OF TECH
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