Diesel oil pour point depressant composition, its preparation method and application

A diesel pour point depressant and pour point depressant technology, which is applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of poor dispersion of wax crystals at low temperatures and achieve obvious effects and simple preparation methods

Active Publication Date: 2012-06-27
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 the present invention is to provide a diesel oil pour point depressant composition capable of enhancing the dispersion effect of the diesel pour point depressant on wax crystals at low temperature...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of diesel oil point depressant composition, its raw material is calculated by mass percentage, and each component and content are as follows:

[0027] Methyl acetate 5%

[0028] Ethyl acetate 10%

[0029] Propyl acetate 5%

[0030] Butyl acetate 10%

[0031] Pour-point depressant 70%

[0032] The pour point depressant is polyethylene-vinyl acetate pour point depressant T1804D.

[0033] The preparation method of above-mentioned diesel oil pour point depressant composition, step is as follows:

[0034] After mixing the raw materials, stir in a constant temperature water bath at 50°C, control the rotation speed at 150r / min, and stir for 20min to obtain the diesel pour point depressant composition.

[0035] Application of the diesel oil point depressant composition obtained above in 0# diesel oil point depressant

[0036] Add the diesel pour point depressant composition obtained above to commercially available 0# diesel oil, and the amount added is calculated a...

Embodiment 2

[0038] A kind of diesel oil point depressant composition, its raw material is calculated by mass percentage, and each component and content are as follows:

[0039] Methyl acetate 20%

[0040] Ethyl acetate 20%

[0041] Propyl acetate 10%

[0042] Butyl acetate 30%

[0043] Pour point depressant 20%

[0044] The pour point depressant is polyethylene-vinyl acetate pour point depressant T1804D.

[0045] The preparation method of above-mentioned diesel oil pour point depressant composition, step is as follows:

[0046] After mixing the raw materials, stir in a constant temperature water bath at 50°C, control the rotation speed at 150r / min, and stir for 20min to obtain the diesel pour point depressant composition.

[0047] Application of the diesel oil point depressant composition obtained above in 0# diesel oil point depressant

[0048] Add the diesel pour point depressant composition obtained above to commercially available 0# diesel oil, and the amount added is calculated...

Embodiment 3

[0050] A kind of diesel oil point depressant composition, its raw material is calculated by mass percentage, and each component and content are as follows:

[0051] Methyl acetate 10%

[0052] Ethyl acetate 10%

[0053] Propyl acetate 5%

[0054] Butyl acetate 20%

[0055] Pour-point depressant 55%

[0056] The pour point depressant is polyethylene-vinyl acetate pour point depressant T1804D.

[0057] The preparation method of above-mentioned diesel oil pour point depressant composition, step is as follows:

[0058] After mixing the raw materials, stir in a constant temperature water bath at 50°C, control the rotation speed at 150r / min, and stir for 20min to obtain the diesel pour point depressant composition.

[0059] Application of the diesel oil point depressant composition obtained above in 0# diesel oil point depressant

[0060] Add the diesel pour point depressant composition obtained above to commercially available 0# diesel oil, and the amount added is calculated ...

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PUM

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Abstract

The invention discloses a diesel oil pour point depressant composition and its preparation method. The diesel oil pour point depressant composition, i.e. a diesel oil pour point depressant composition formed by mixing acetic ester organic solvents with a pour point depressant, comprises the following raw materials by mass percent: 0-20% of methyl acetate, 0-20% of ethyl acetate, 0-10% of propyl acetate, 0-30% of butyl acetate, and 20-80% of the pour point depressant. The preparation method consists of: mixing all the raw materials and then conducting stirring in water bath at a constant temperature of 50DEG C for 20min, and controlling the rotation speed at 150r/min, thus obtaining the diesel oil pour point depressant composition. Adding of the obtained diesel oil pour point depressant composition into commercially available 0# diesel oil can make the cold filter plugging point of the diesel oil reduced by 5-11DEG C and the condensation point reduced by 6-10DEG C. The diesel oil pour point depressant composition provided in the invention enhances the dispersion effect of pour point depressants on wax crystals, and improves the low temperature fluidity of diesel oil.

Description

technical field [0001] The invention relates to a pour point depressant composition and a preparation method thereof, in particular to a pour point depressant composition for diesel oil pour point depression and a preparation method thereof. Background technique [0002] Diesel pour point depressant, also known as diesel low-temperature flow performance improver, is an additive that can significantly reduce the freezing point and cold filter point of diesel and improve the low-temperature flow performance of diesel by adding a small amount. It mainly improves the low temperature flow properties of diesel through eutectic, adsorption, solubilization or nucleation. The research on diesel oil pour point depressant is of great significance to increase the output of diesel oil, save kerosene, increase the ratio of diesel to gasoline and improve the economic benefits of refineries. At present, in order to obtain a better cooling filter point reduction effect, domestic and foreig...

Claims

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Application Information

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IPC IPC(8): C10L1/19C10L1/192C10L1/195C10L1/196C10L10/14
Inventor 韩生曹磊昌朱贤刘天齐李然
Owner SHANGHAI INST OF TECH
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