Nano-composite pour point depressant compound and preparation method thereof

A nano-composite, pour point depressant technology, used in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve problems such as changing flow properties, reducing diesel cold filter points, etc., to improve low-temperature fluidity and excellent pour point depressant effect. Effect

Active Publication Date: 2017-07-25
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

We found in Chinese patents, Japanese patents, European patents and U.S. patents that most of the pour point depressants developed by these patents are used in low-wax diesel oil, and are used in high-wax diesel oil, and there are even reports about greatly reducing the cold filter point of diesel oil. few
Moreover, the pour point depressants reported in these patents are all used in diesel oil refined from low-wax crude oil, and have almost no effect on changing the flow properties of diesel oil refined from high-wax crude oil in my country.

Method used

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  • Nano-composite pour point depressant compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A nanocomposite pour point depressant composition, which is prepared by a method comprising the following steps:

[0024] The composition is formed by mixing a nanocomposite fumaric acid high-carbon mixed alcohol ester pour point depressant and a nanocomposite fumaric acid high-carbon mixed alcohol ester-maleic anhydride binary copolymer with a mass ratio of 1:1; The nano material and the pour point depressant are used as raw materials, and are prepared by a solvent blending method; wherein: when the solvent is blended, the temperature is 120° C., the solvent used is toluene, and the compound reaction is obtained; the nano material is montmorillonite; the The mass ratio of nanomaterials, mixed alcohol ester pour point depressant and dimer compound in nanocomposite raw materials is 1:1;

[0025] Described high-carbon mixed alcohol fumaric acid ester and high-carbon mixed alcohol fumaric acid ester-maleic anhydride binary copolymer are prepared through the following steps...

Embodiment 2

[0033] The difference from Example 1 is that the high-carbon mixed alcohol used in the preparation step (1) is weighed according to the following ratio (tetradecyl alcohol, cetyl alcohol, stearyl alcohol, eicosanol and behenyl alcohol, which The molar ratio is 1:2:2:2.5:2.5);

[0034] The nanomaterial used in nanocomposite is silicon dioxide;

[0035] Others are the same as in Example 1.

Embodiment 3

[0040] The difference from Example 1 is that the high-carbon mixed alcohol used in the preparation step (1) is weighed according to the following ratio (tetradecyl alcohol, cetyl alcohol, stearyl alcohol, eicosanol and behenyl alcohol, which The molar ratio is 1:3:3:4:4);

[0041] The nanomaterial used in nanocomposite is titanium dioxide;

[0042] Others are the same as in Example 1.

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Abstract

The invention discloses a nano-composite pour point depressant compound and a preparation method thereof. The nano-composite pour point depressant compound disclosed by the invention is prepared according to the method which comprises the following steps: firstly, compounding a mixed alcohol ester of fumaric acid and high carbon and copolymerizing the mixed alcohol ester of fumaric acid and high carbon with maleic anhydride, thereby acquiring a bipolymer; respectively compounding the mixed alcohol ester of fumaric acid and high carbon and the biopolymer with a nanometer material in a ratio; and lastly, mixing the two compounds in a mass ratio of (1:1)-(1:4) and ultrasonically dispersing, thereby acquiring the nano-composite pour point depressant compound. The pour point depressant disclosed by the invention has the advantages of strong specificity, excellent dispersity, high oil solubility, simple preparation method, easily acquired raw materials, obvious pour point depressing effect and special suitability for Daqing 0# diesel oil containing high wax component. When the pour point depressant is applied to the Daqing 0# diesel oil containing high wax component, the low-temperature liquidity thereof can be effectively improved and the cold filter plugging point and the congealing point of the Daqing 0# diesel oil can be respectively maximal reduced by 8-20 DEG C and 18-35 DEG C.

Description

technical field [0001] The invention specifically relates to a nanocomposite pour point depressant composition and a preparation method thereof, belonging to the technical field of biomass energy additives. Background technique [0002] Diesel is a mixture of various complex hydrocarbons, including normal alkanes, isoparaffins, saturated hydrocarbons, aromatic hydrocarbons, etc. As the temperature decreases, the solubility of long-chain alkanes decreases and they will precipitate out of the oil. Daqing Oil belongs to paraffinic base crude oil. The crystallization phenomenon is more obvious. We found in Chinese patents, Japanese patents, European patents and U.S. patents that most of the pour point depressants developed by these patents are used in low-wax diesel oil, and are used in high-wax diesel oil, and there are even reports about greatly reducing the cold filter point of diesel oil. few. Moreover, the pour point depressants reported in these patents are all used in...

Claims

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Application Information

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IPC IPC(8): C10L1/12C10L1/198C10L10/14
CPCC10L1/106C10L1/12C10L1/1233C10L1/1291C10L1/198C10L10/14
Inventor 韩生赵志成颜松连俊周嘉伟薛原常伟陈达明蔺华林
Owner SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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