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A kind of aminolysis ternary polymer diesel oil pour point depressant and preparation method thereof

A ternary polymer and diesel pour point depressant technology, which is applied in the petroleum industry, fuel additives, fuels, etc., can solve the problem of filter depressant effect or increase instead of decrease, unable to adapt to petroleum products, pour point depressant components Single and other problems, to achieve the effect of lowering the freezing point, inhibiting the growth of wax crystals, and improving low temperature fluidity

Active Publication Date: 2018-10-30
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing pour point depressants have relatively single components and cannot adapt to petroleum products with different structures
Although some pour point depressants can significantly reduce the freezing point of diesel oil, the effect of lowering the cold filter point is poor. For some domestic paraffin-based diesel oils, there is even no filter reduction effect or the filter effect does not decrease but rises.
[0005] Due to the shortcomings of the current diesel pour point depressant, such as poor universality, it is particularly necessary to develop a new type of pour point depressant

Method used

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  • A kind of aminolysis ternary polymer diesel oil pour point depressant and preparation method thereof
  • A kind of aminolysis ternary polymer diesel oil pour point depressant and preparation method thereof
  • A kind of aminolysis ternary polymer diesel oil pour point depressant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Add 48.86g (0.2mol) tetradecyl alcohol, 0.672g polymerization inhibitor hydroquinone, 75ml solvent toluene in the there-necked flask equipped with thermometer, condenser, water separator and magnetic stirring device, and heat up to 55 ℃ to dissolve all myristyl alcohol in toluene, then quickly add 25.83g (0.3mol) of methacrylic acid and 1.046g of catalyst p-toluenesulfonic acid into the three-necked flask, and rise to 125℃, the esterification reaction produces As the reaction temperature rises, water will form a copolymer with toluene and be evaporated, and enter the water separator after being condensed. React at this temperature for 5 hours. When it is observed that the amount of desorbed water is equivalent to the theoretical value, the system is in a yellow-brown transparent liquid state, and the reaction is terminated. After the reaction is completed, the obtained reaction liquid is distilled off the solvent toluene under reduced pressure when the temperature o...

Embodiment 2

[0032] The difference from Example 1 is that in step (2), 8.54g (0.04mol) tetradecylamine, 0.263g catalyst p-toluenesulfonic acid are added instead of adding 9.66g (0.04mol) hexadecylamine, 0.407g catalyst p-toluenesulfonic acid acid.

Embodiment 3

[0034] The difference from Example 1 is that adding 8.54g (0.04mol) tetradecylamine, 0.263g catalyst p-toluenesulfonic acid in step (2) is replaced by adding 10.78g (0.04mol) octadecylamine, 0.424g catalyst p-toluene sulfonic acid.

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Abstract

The invention discloses an aminolysis ternary polymer diesel oil pour point depressant and a preparation method thereof. The aminolysis ternary polymer diesel oil pour point depressant disclosed by the invention is prepared through an amination reaction among a ternary polymer of tetradecyl methacrylate, maleic anhydride and cetene and fatty amine and aromatic amine. According to the aminolysis ternary polymer diesel oil pour point depressant disclosed by the invention, the synthesis method is simple, and the raw materials are cheap and easily available; the aminolysis ternary polymer diesel oil pour point depressant disclosed by the invention can effectively improve the condensation point and the cold filter plugging point of diesel oil; the additive dosage is small; the pour point depression effect is good.

Description

technical field [0001] The invention relates to an aminolysis ternary polymer pour point depressant and a preparation method thereof, belonging to the technical field of pour point depressants. Background technique [0002] With the development of modern society, the demand for diesel oil is getting higher and higher, and diesel oil is a complex mixture of multi-components, which contains normal alkanes, cycloalkanes, olefins and aromatic hydrocarbons. The solubility of n-alkanes in fuel oil is the lowest. When the temperature is lower than the cloud point of diesel oil, straight-chain alkanes will form wax and be separated from fuel oil. As the temperature decreases, the wax crystals will attract each other through van der Waals force Aggregation forms a three-dimensional network structure, wrapping the rest of the liquid in it, making it lose fluidity, thus affecting the normal use and transportation of diesel. In order to improve the low-temperature flow performance of d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/222C10L1/233C10L10/16C08F222/06C08F220/18C08F210/14C08F8/32
CPCC08F8/32C08F220/18C08F220/1818C08F222/06C10L1/2222C10L1/233C10L10/16C08F210/14
Inventor 韩生许广文薛原王爱民蔺华林廉翔赵志成刘平周嘉伟
Owner SHANGHAI INST OF TECH