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Nano composite ternary polymer pour point reducer and preparation method thereof

A ternary polymer and nano-composite technology, which is used in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve problems such as single, non-broad-spectrum, blocking of engine oil pipelines and filters, and achieve low temperature flow. The effect of improving property and good oil solubility

Active Publication Date: 2017-09-15
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in northern my country and some cold regions, as the temperature drops, the paraffin molecules in diesel oil begin to crystallize and continue to precipitate and aggregate. Due to the large accumulation of paraffin crystals, a three-dimensional network structure is finally formed. , will block the engine oil pipeline and filter, resulting in the engine not working properly
[0003] At present, diesel pour point depressant is an effective low-temperature flow improver, which can improve the low-temperature flow of diesel oil. There are many types of polymer pour point depressants on the market, but they are relatively single and do not have a broad spectrum. The ternary polymer pour point depressant is generally suitable for most diesel oils and has wide practicability

Method used

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  • Nano composite ternary polymer pour point reducer and preparation method thereof
  • Nano composite ternary polymer pour point reducer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A novel nanocomposite ternary polymer pour point depressant, which is prepared by a method comprising the following steps:

[0025] a. Under the action of cetyltrimethylammonium bromide, the nano-montmorillonite is subjected to a modification reaction at a temperature of 70-85 ° C, and after the reaction is completed, it is vacuum-dried at 60 ° C for 48 hours to obtain a modified nano-montmorillonite desoiling;

[0026] The mass ratio of the nano-montmorillonite used in the above-mentioned reaction and cetyltrimethylammonium bromide is 1:1.5;

[0027] b. Put the modified nano-montmorillonite and ternary polymer pour point depressant in a flask, and react at 125°C for 6 hours by solvent blending method to obtain a new nanocomposite ternary polymer pour point depressant ;

[0028] The amount of modified nanometer montmorillonite used in the above-mentioned reaction, terpolymer is calculated by mass ratio, that is, modified nanometer montmorillonite: terpolymer is 1:1; ...

Embodiment 2

[0034] The difference from Example 1 is that the high-carbon mixed alcohol used in the preparation step (1) of the ternary polymer pour point depressant is in accordance with myristyl alcohol: cetyl alcohol: stearyl alcohol: eicosanol: behenyl alcohol The molar ratio=1:2:2:2:2.5 ratio takes by weighing, and the amount of catalyzer p-toluenesulfonic acid is 1.2% of high-carbon mixed alcohol and fumaric acid gross mass, the consumption of inhibitor hydroquinone It is 0.8% of the total mass of high-carbon mixed alcohol and fumaric acid, after the esterification reaction is completed at 120°C for 4.5h; the high-carbon mixed alcohol fumaric acid ester, styrene, methyl methacrylate The mol ratio is 3:1.5:3, and the amount of catalyst p-toluenesulfonic acid is 1.2% of the total mass of fumaric acid high-carbon mixed alcohol ester, styrene and methyl methacrylate, fumaric acid high-carbon mixed alcohol ester, The polymerization temperature of styrene and methyl methacrylate is 105°C, ...

Embodiment 3

[0037] The difference from Example 1 is that the high-carbon mixed alcohol used in the preparation step (1) of the ternary polymer pour point depressant is in accordance with myristyl alcohol: cetyl alcohol: stearyl alcohol: eicosanol: behenyl alcohol The molar ratio=1:3:3:3:4 ratio takes by weighing, and the amount of catalyzer p-toluenesulfonic acid is 1.5% of high-carbon mixed alcohol and fumaric acid gross mass, the consumption of inhibitor hydroquinone It is 1% of the total mass of high-carbon mixed alcohol and fumaric acid, after the esterification reaction finishes at 130°C for 5h; The molar ratio is 3:2:4, the amount of catalyst p-toluenesulfonic acid is 1.5% of the total mass of fumaric acid high-carbon mixed alcohol ester, styrene and methyl methacrylate, fumaric acid high-carbon mixed alcohol ester, benzene The polymerization temperature of ethylene and methyl methacrylate is 115°C, and the reaction time is 6h;

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Abstract

The invention discloses a nano composite ternary polymer pour point reducer and a preparation method thereof. Modified nano montmorillonite and a ternary polymer according to a mass ratio of 1:1 to 1:8 are taken as raw materials, and the nano composite ternary polymer pour point reducer is prepared through a solvent blending method. The nano composite ternary polymer pour point reducer is prepared by the steps: taking fumaric acid high-carbon mixed alcohol ester, styrene and methyl methacrylate as monomers, and carrying out a polymerization reaction under the action of an initiator, thereby obtaining the pour point reducer, wherein the fumaric acid high-carbon mixed alcohol ester is an ester formed by fumaric acid and several alcohols selected from C14-C25 alcohols. The preparation method is simple, the raw materials are cheap and readily available, and the nano composite ternary polymer pour point reducer with high dispersity and excellent effects is provided. When the nano composite ternary polymer pour point reducer is applied to 0# diesel oil, the pour point depression effect is superior to that of a ternary polymer pour point reducer, so that the cold filter plugging point and condensation point of gasoline are respectively reduced by 14-22 DEG C and 18-37 DEG C.

Description

technical field [0001] The invention specifically relates to a nanocomposite ternary polymer pour point depressant and a preparation method thereof, belonging to the technical field of biomass energy additives. Background technique [0002] With the rapid economic development, my country's annual diesel consumption is gradually increasing. By the end of 2016, the total diesel consumption reached 116.53 million tons, a year-on-year increase of 5.5%. It is widely used in agriculture and transportation. However, in northern my country and some cold regions, as the temperature drops, the paraffin molecules in diesel oil begin to crystallize and continue to precipitate and aggregate. Due to the large accumulation of paraffin crystals, a three-dimensional network structure is finally formed. , will block the engine oil pipeline and filter, resulting in the engine not working properly. [0003] At present, diesel pour point depressant is an effective low-temperature flow improver, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/10C10L1/12C10L1/196C10L1/226C10L10/16
CPCC10L1/10C10L1/106C10L1/1233C10L1/1966C10L1/226C10L10/16
Inventor 韩生赵志成颜松孙宁宁周嘉伟薛原连俊常伟陈达明蔺华林
Owner SHANGHAI INST OF TECH
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