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Binary nitrogen-containing polymer diesel pour point depressant, and preparation method and application thereof

A diesel pour point depressant, polymer technology, applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of poor pour point depressant effect, single composition, etc., to improve low-temperature flow performance, reduce freezing point and Cold filter point and pour point depressing effect are obvious

Inactive Publication Date: 2020-06-12
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the existing diesel pour point depressant is relatively simple, and the pour point depressant effect is not good

Method used

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  • Binary nitrogen-containing polymer diesel pour point depressant, and preparation method and application thereof
  • Binary nitrogen-containing polymer diesel pour point depressant, and preparation method and application thereof
  • Binary nitrogen-containing polymer diesel pour point depressant, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add 10.33g (0.12mol) of methacrylic acid, 21.44g (0.1mol) of tetradecyl alcohol, and 0.192g of hydroquinone to a three-necked flask equipped with a condenser, a water separator, a thermometer, and a magnetic stirring device , 50ml toluene, heat up to 60°C to completely dissolve myristyl alcohol in toluene, then quickly add 0.254g catalyst p-toluenesulfonic acid into the three-necked flask, heat up to 110-120°C and react for 5 hours, when observed When the amount of water in the water separator is equivalent to the theoretical value, the system is in a light yellow transparent liquid state, and the reaction is terminated. After the reaction was completed, the obtained reaction solution was distilled under reduced pressure, and then alkali washing and water washing were carried out after removing the solvent. The alkali washing was washed with a 5% NaOH solution to remove p-toluenesulfonic acid and unreacted methyl alcohol. Acrylic acid generally needs to be washed 3-...

Embodiment 2

[0032] The difference from Example 1 is that the 8g tetradecyl methacrylate-acrylamide binary polymer and 2g EVA added in step (3) are replaced by adding 4g tetradecyl methacrylate-acrylamide binary polymer , 2g EVA, all the other are with embodiment 1.

Embodiment 3

[0034] The difference from Example 1 is that the 8g tetradecyl methacrylate-acrylamide binary polymer and 2g EVA added in the step (3) are replaced by adding 2g tetradecyl methacrylate-acrylamide binary polymer , 2g EVA, all the other are with embodiment 1.

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Abstract

The invention relates to a binary nitrogen-containing polymer diesel pour point depressant, and a preparation method and an application thereof. The preparation method of the diesel pour point depressant comprises the following steps: 1) adding methacrylic acid, higher alcohol and a polymerization inhibitor into a solvent, fully dissolving, adding a catalyst, and carrying out a catalytic reactionto obtain high-carbon methacrylate; and 2) adding the high-carbon methacrylate and acrylamide into a solvent, then adding an initiator, and carrying out a polymerization reaction to obtain the high-carbon methacrylate-acrylamide binary polymer. When applied, the binary nitrogen-containing polymer diesel pour point depressant and EVA are mixed and then added into 0# diesel. The binary nitrogen-containing polymer diesel pour point depressant is low in raw material cost and simple in synthesis method, has high oil solubility after being compounded with EVA, can effectively improve the low-temperature flowing property of diesel, has a good effect in the aspect of reduction of a condensation point and a cold filter plugging point, and has excellent market value.

Description

technical field [0001] The invention belongs to the technical field of composite diesel pour point depressant, and relates to a binary nitrogen-containing polymer diesel pour point depressant and its preparation and application. Background technique [0002] Diesel oil is generally made by blending two or more components. The blended diesel oil is a middle distillate oil with a general boiling range of 170-390°C and contains n-paraffins, olefins, aromatics and other Polar and nonpolar compounds. Linear alkanes have the lowest solubility in fuel oil. When the temperature is lower than the cloud point of diesel oil, linear alkanes will form wax and be separated from fuel oil. The distribution of normal wax is generally in the range of C10-C25. When the carbon chain length of normal wax molecule increases, its solubility in diesel oil is worse at low temperature, and it is easier to precipitate from diesel oil. [0003] Diesel pour point depressant is an additive that can sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/56C10L1/04C10L10/14C10L1/196C10L1/197C10L1/236
CPCC08F220/18C10L1/04C10L1/146C10L1/14C10L1/2364C10L1/1963C10L1/1973
Inventor 蔺华林殷素雅解麦莹刘业萍薛原陈凤飞杨太顺常哲馨韩生
Owner SHANGHAI INST OF TECH
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