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Anti-wear agent for diesel oil

An anti-wear agent and diesel technology, applied in the field of diesel anti-wear agent, can solve problems such as low acid value, and achieve the effects of simple preparation method, improved lubricating performance and mild production conditions

Active Publication Date: 2018-01-12
SINOPEC YANGZI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the deficiencies in the prior art, the present invention provides an antiwear agent for diesel oil, which can resist emulsification while improving the lubricating performance of diesel oil, and has a low acid value, and will not react with diesel dispersant to cause clogging Problems with the fuel injection system

Method used

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  • Anti-wear agent for diesel oil

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Preparation of polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether: 40g isopropanol is used as solvent, polymethyl hydrogen siloxane 50g is reacted with allyl polyoxyethylene polyoxypropylene methyl ether 35g , using 0.1% chloroplatinic acid as a catalyst by mass ratio, the reaction temperature is 80°C, the reaction time is 7h, nitrogen gas is passed through during the reaction, and the solvent isopropanol is distilled off under reduced pressure after the reaction, and the yellow transparent liquid is polysiloxane Alkyl-allyl polyoxyethylene polyoxypropylene methyl.

[0022] Take linoleic acid glyceride, tert-amyl alcohol and polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether and mix evenly, linoleic acid glyceride, tert-amyl alcohol and polysiloxane-allyl polyoxyethylene The weight ratio of polyoxypropylene methyl ether is 50:40:10, the mixing temperature is 30°C, and the mixing method is to first add linoleic acid glyceride to tert-amyl alco...

Embodiment 2

[0024] The preparation method of polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether is the same as that of Example 1, taking linoleic acid glyceride, tert-amyl alcohol and polysiloxane-allyl polyoxyethylene polyoxypropylene The methyl ether is mixed evenly, the weight ratio of glyceryl linoleate, tert-amyl alcohol and polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether is 45:55:10, and the mixing temperature is 40°C. First add glyceryl linoleate to tert-amyl alcohol, and finally add polysiloxane-polyoxyethylene polyoxypropylene methyl ether.

Embodiment 3

[0026] The preparation method of polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether is the same as that of embodiment 1, and oleic acid glyceride, tert-amyl alcohol and polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether are obtained The base ether is mixed evenly, the weight ratio of glyceryl oleate, tert-amyl alcohol and polysiloxane-allyl polyoxyethylene polyoxypropylene methyl ether is 48:40:12, the mixing temperature is 50°C, and the mixing method is first Add glyceryl oleate to tert-amyl alcohol, and finally polysiloxane-polyoxyethylene polyoxypropylene methyl ether.

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Abstract

The invention relates to an anti-wear agent for diesel oil. The anti-wear agent for diesel oil is prepared by uniformly mixing plant fatty acid ester, an organic solvent and polysiloxane-allylpolyoxyethylene polyoxypropylene methyl ether in a weight ratio of (1-70): (1-55): (1-15). The addition amount of the anti-wear agent in diesel oil is normally 50 to 2000 ppm; the anti-wear agent for diesel oil can improve the anti-wear performance of diesel oil and effectively overcome the problem that diesel oil emulsifies when coming across water during transportation; the raw materials are easily available; preparation process is simple; and production conditions are mild.

Description

technical field [0001] The invention relates to a diesel antiwear agent. Background technique [0002] With the increasingly stringent requirements of environmental protection laws, low-sulfur diesel oil is an inevitable trend. Polycyclic aromatic hydrocarbons, oxygen-containing impurities, nitrogen-containing impurities and sulfur-containing compounds in diesel oil are the main substances that affect the lubricity of diesel oil. The lubricity of diesel oil depends on the content of anti-wear substances. Polycyclic aromatic hydrocarbons, nitrogen-containing compounds All have good anti-wear effect, while sulfide not only does not resist wear, but promotes wear. However, most of the sulfides in diesel oil exist in aromatic hydrocarbons and polycyclic aromatic hydrocarbons in the form of heterocyclic rings. Aromatics and other lubricating components reduce the lubricity of diesel. In order to avoid wear and damage of diesel engines with the reduction of sulfur content and p...

Claims

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Application Information

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IPC IPC(8): C10L1/19C10L1/28C10L10/08
Inventor 孙研徐骏
Owner SINOPEC YANGZI PETROCHEM
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