Application method of benzene ring-containing binary copolymer

A binary copolymer and benzene ring technology, which is applied in liquid carbon-containing fuels, fuel additives, petroleum industry, etc., can solve the problems of poor broad-spectrum performance of pour point depressants, improve low-temperature fluidity, increase utilization, The effect of strong solubility

Active Publication Date: 2019-09-27
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a kind of application containing benzene ring binary copolymer in diesel oil pour point depressing, improve the polarity of pour point depressant molecule by the benzene ring in benzyl methacrylate, secondly in the carbon

Method used

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  • Application method of benzene ring-containing binary copolymer
  • Application method of benzene ring-containing binary copolymer
  • Application method of benzene ring-containing binary copolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of diesel oil point depressant, is made up of binary copolymer containing benzene ring, the preparation method of described binary copolymer containing benzene ring is:

[0030] (1) Add 18.0g of benzyl methacrylate, 10.0g of maleic anhydride and 50mL of toluene to a three-necked flask equipped with a condenser, a temperature controller, a magnetic stirring device and a nitrogen gas inlet, and pass nitrogen into the three-necked flask first 2-3 minutes, vacuum 1-2 minutes, repeat three times to remove the air in the reaction system. Under nitrogen protection, the temperature of the system was slowly raised to 110° C., and 10 mL of toluene solution containing 0.224 g of benzoyl peroxide was added dropwise to the reactor (completely added within 30-45 minutes). After the reaction temperature was kept at 110°C for 8 hours of polymerization, the polymer was cooled to room temperature, excess ethanol was added dropwise to the reactant to produce a precipitate, the supe...

Embodiment 2

[0034] The difference from Example 1 is that in step (2), 11 g of octadecylamine and 0.104 g of catalyst p-toluenesulfonic acid are added instead of adding 9.8 g of hexadecylamine and 0.0944 g of catalyst p-toluenesulfonic acid. The molecular Mw of the polymer tested by GPC is 61860g / mol, Mn is 43510g / mol, and Mw / Mn is 1.422, and the product benzyl methacrylate-maleic anhydride-hexadecylamine is characterized by NMR as figure 2 shown.

Embodiment 3

[0036] The difference from Example 1 is that in step (2), 11 g of octadecylamine and 0.104 g of catalyst p-toluenesulfonic acid were added instead of 8.7 g of tetradecylamine and 0.0856 g of catalyst p-toluenesulfonic acid. The molecular Mw of polymer tested by GPC is 63560g / mol, and Mn is 46240g / mol, and Mw / Mn is 1.375, and product benzyl methacrylate-maleic anhydride-tetradecylamine is carried out NMR characterization as follows image 3 shown.

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Abstract

The invention provides an application method of a benzene ring-containing binary copolymer. The preparation method of the benzene ring-containing binary copolymer comprises: dissolving a benzyl methacrylate-maleic anhydride binary copolymer in a toluene solvent, adding higher fatty amine or aromatic amine and a p-toluenesulfonic acid catalyst, carrying out an amination reaction, and purifying to obtain a benzyl methacrylate-maleic anhydride binary copolymer. The product has strong solubility, and also can effectively improve the low temperature fluidity of diesel oil. By adding a diesel oil pour point depressant of the obtained benzene ring-containing binary copolymer into Songjiang No. 0 diesel oil, condensation point and cold filter plugging point of the diesel oil can be lowered by 6-19 DEG C and 0-7 DEG C respectively.

Description

technical field [0001] The invention relates to the application of a diesel pour point depressant containing a benzene ring binary copolymer, and belongs to the technical field of oil performance improvement. Background technique [0002] Diesel pour point depressant can effectively improve the low-temperature fluidity of diesel, and is the most economical and convenient way to improve the low-temperature fluidity of diesel. By adding a pour point depressant to form low point diesel oil, it can increase the cutting of diesel fraction in crude oil, save crude oil energy, and have great social and economic benefits. When diesel oil is not added with pour point depressant, when the temperature drops, the diesel oil will precipitate wax crystals. As the temperature continues to drop, the wax crystals will gradually increase, and finally form a three-dimensional network structure, which greatly reduces the fluidity of diesel oil. The addition of diesel pour point depressant effe...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F222/06C08F8/32C10L1/236C10L10/14
CPCC08F8/32C08F220/18C10L1/236C10L10/14C10L2270/026C08F222/06
Inventor 薛原解麦莹殷素雅陈凤飞杨太顺蔺华林韩生周明安刘金宝
Owner SHANGHAI INST OF TECH
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