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Wear-resistant additive for low-sulfur diesel oil as well as preparing method thereof and diesel oil combination

A low-sulfur diesel and additive technology, used in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of rotary pump distribution pump wear, reduce service life, reduce diesel natural lubrication performance, etc., to improve lubricity, The effect of rust improvement

Active Publication Date: 2017-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because they generally adopt a harsh hydrogenation process, the content of polar oxygen-containing and nitrogen-containing compounds in diesel oil is very low, and the content of polycyclic and bicyclic aromatic hydrocarbons is also small, thus reducing the natural lubrication performance of diesel oil and causing Some fuel injection pumps that rely on diesel oil for lubrication, such as rotary pumps and distributor pumps, have worn out, reducing their service life

Method used

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  • Wear-resistant additive for low-sulfur diesel oil as well as preparing method thereof and diesel oil combination
  • Wear-resistant additive for low-sulfur diesel oil as well as preparing method thereof and diesel oil combination
  • Wear-resistant additive for low-sulfur diesel oil as well as preparing method thereof and diesel oil combination

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] This example is the preparation of alkenyl substituted hydrazides.

[0037] Place 50g (0.19mol) of dodecenylsuccinic anhydride and 6.0g (0.19mol) of hydrazine in a three-necked flask reactor equipped with an electric stirrer, a thermometer, a reflux water separator and a nitrogen inlet pipe, and feed into The temperature was controlled at 30° C. under nitrogen heating and stirring, and nitrogen purging was used to react for 1 hour, and the product was formed.

example 2

[0039] This example is the preparation of alkenyl hydrazide.

[0040] Put 50g (0.19mol) dodecenylsuccinic anhydride, 11.2g (0.19mol) hydrazine hydrate (85%, wt) in a three-necked flask equipped with an electric stirrer, a thermometer, a reflux water separator and a nitrogen inlet tube In the reactor, feed nitrogen to heat and stir to raise the temperature to 150-160° C., purging and reacting with nitrogen for 3 hours, and the product is produced.

example 3

[0042] This example is the preparation of alkenyl substituted hydrazides.

[0043] 50g (0.19mol) dodecenyl succinic anhydride and 11.4g (0.19mol) ethylhydrazine are placed in a three-necked flask reactor equipped with an electric stirrer, a thermometer, a reflux water separator and a nitrogen inlet pipe, and the The temperature was controlled at 80° C. under nitrogen gas heating and stirring, and the reaction was carried out by purging nitrogen gas for 5 hours, and the product was formed.

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Abstract

A wear-resistant additive for low-sulfur diesel oil contains at least one hydrazide compound and optional diluting oil. The wear-resistant additive for the low-sulfur diesel oil is prepared by reacting alkyl-substituted succinic anhydride and hydrazine at 20-250DEG C. The additive provided by the invention not only can improve the lubricating property of the low-sulfur diesel oil but also has a great improving role on the corrosion of the diesel oil.

Description

technical field [0001] The invention relates to a diesel additive, specifically a low-sulfur diesel anti-wear additive. [0002] technical background [0003] As countries around the world pay more and more attention to environmental protection issues, in order to reduce diesel exhaust pollution and produce high-quality clean diesel oil, it has become the development direction of the modern oil refining industry. This kind of diesel oil generally has the characteristics of low sulfur content, low aromatics content, high cetane number, and light distillate. Studies have shown that sulfur is the most harmful element that increases CH and CO in diesel engine emissions, especially inhalable particulate matter (PM), so reducing the sulfur content in diesel is particularly important for improving air pollution. Now the diesel specifications of the United States, Canada, and Western European countries all stipulate that the S content of diesel oil is less than 0.05%, and some count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/00C10L1/226C10L1/16C10L10/04C10L10/08
Inventor 王祥蔺建民张建荣黄燕民李宝石李航
Owner CHINA PETROLEUM & CHEM CORP
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