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Nanometer compound binary polymer pour point reducer and preparation method thereof

A nano-composite and polymer technology, used in fuel additives, liquid carbon-containing fuels, petroleum industry, etc., can solve the problems of the engine not working properly, blocking the engine oil pipeline and filter, etc., to achieve excellent pour point reduction effect, low temperature flow Sexual improvement effect

Active Publication Date: 2017-01-04
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary 0# diesel oil is a mixture containing multi-component complex hydrocarbons, which contains more normal alkanes. In northern my country and some cold regions, as the temperature decreases, paraffin molecules in diesel oil begin to crystallize and continue to precipitate. Aggregation, due to the large accumulation of paraffin crystals, a three-dimensional network structure is finally formed. When it is applied to a diesel engine, it will block the engine oil pipeline and filter, resulting in the engine not working properly

Method used

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  • Nanometer compound binary polymer pour point reducer and preparation method thereof
  • Nanometer compound binary polymer pour point reducer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A novel nanocomposite binary polymer pour point depressant, which is prepared by a method comprising the following steps:

[0023] (1) By adding nano-SiO 2 Under the action of silane coupling agent KH570, the modification reaction is carried out at a temperature of 60-70°C to obtain modified nano-SiO 2 ;

[0024] The nano-SiO used in the above reaction 2 , the amount of silane coupling agent KH570, calculated by mass ratio, that is, nano-SiO 2 : silane coupling agent KH570 is 1:0.7;

[0025] (2) The modified nano-SiO 2 Put it in a flask with binary polymer pour point depressant, and react at 120°C for 5 hours by solvent blending method to obtain a new type of nanocomposite binary polymer pour point depressant;

[0026] The modified nano-SiO used in the above reaction 2 , the amount of methacrylate maleic anhydride binary copolymer, calculated by mass ratio, that is, modified nano-SiO 2 : methacrylic acid maleic anhydride binary copolymer is 1:4;

[0027] The use...

Embodiment 2

[0038] The difference from Example 1 is that the mol ratio of methacrylic acid and myristyl alcohol used in the preparation step (1) of the binary polymer pour point depressant is 1.2:1, and the amount of the catalyst p-toluenesulfonic acid is methyl 1.0% of the total mass of acrylic acid and higher alcohols, the amount of inhibitor hydroquinone is 0.3% of the total mass of methacrylic acid and higher alcohols;

[0039] The amount of methacrylate used in step (2), maleic anhydride is calculated by molar ratio, i.e. methacrylate: maleic anhydride is 1:0.8, and the amount of initiator benzoyl peroxide is methacrylic acid and 0.5% of the total mass of maleic anhydride;

[0040] Others are the same as in Example 1.

Embodiment 3

[0042] The difference from Example 1 is that the mol ratio of methacrylic acid and myristyl alcohol used in the preparation step (1) of the binary polymer pour point depressant is 1.8:1, and the amount of the catalyst p-toluenesulfonic acid is methyl 1.7% of the total mass of acrylic acid and higher alcohols, the amount of inhibitor hydroquinone is 1.0% of the total mass of methacrylic acid and higher alcohols;

[0043] The amount of methacrylic acid ester used in step (2), maleic anhydride is calculated by molar ratio, i.e. methacrylic acid ester: maleic anhydride is 1:1.2, and the amount of initiator benzoyl peroxide is methacrylic acid and 0.9% of the total mass of maleic anhydride;

[0044] Others are the same as in Example 1.

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Abstract

The invention discloses a nanometer compound binary polymer pour point reducer and a preparation method thereof. The nanometer compound binary polymer pour point reducer is formed by compounding a nanometer material and a binary polymer pour point reducer through a solvent blending method. The method includes the following steps of esterifying methacrylic acid and multi-carbon alcohol, copolymerizing the product with maleic anhydride to obtain the binary polymer pour point reducer, and finally compounding the nanometer SiO2 material modified by a silane coupling agent KH570 with the binary polymer pour point reducer through the solvent blending method to obtain the nanometer compound binary polymer pour point reducer. The nanometer compound binary polymer pour point reducer is stable in performance and outstanding in effect, and the pour point reducing effect is further enhanced on the basis of pour point reducing of an existing binary polymer pour point reducer. When the pour point reducer is applied to 0# diesel oil, the filtering point and the condensation point of 0# diesel oil can be reduced by 10-17 DEG C and 24-35 DEG C respectively, and the pour point reducing effect is better than that of the existing binary polymer pour point reducer.

Description

technical field [0001] The invention specifically relates to a nanocomposite binary polymer pour point depressant and a preparation method thereof, belonging to the technical field of biomass energy additives. Background technique [0002] Ordinary 0# diesel oil is a mixture containing multi-component complex hydrocarbons, which contains more normal alkanes. In northern my country and some cold regions, as the temperature decreases, paraffin molecules in diesel oil begin to crystallize and continue to precipitate. Aggregation, due to the massive accumulation of paraffin crystals, a three-dimensional network structure is finally formed. When it is applied to a diesel engine, it will block the engine oil pipeline and filter, resulting in the engine not working properly. [0003] In recent years, with the development of nanotechnology, polymer / inorganic nanocomposites and inorganic nanohybrid materials have become the research hotspots of scholars at home and abroad. By introdu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/12C10L1/196C10L10/14C08F220/18C08F222/06
CPCC08F220/18C08F220/1818C08F222/06C10L1/106C10L1/1233C10L1/1963C10L10/14C10L2270/026
Inventor 韩生赵志成薛原蔺华林韩治亚许广文连俊周嘉伟刘平陈达明廉翔陈红艳余焓卢德力蒋继波邱丰于飞李原婷祝俊
Owner SHANGHAI INST OF TECH
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