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Anti-wear combustion-supporting dual-effect diesel additive and preparation method thereof

A technology of additives and diesel oil, which is applied in the direction of fuel additives, fuel, petroleum industry, etc., can solve the problems of reducing the natural lubricating performance of diesel oil, polluting the environment with photochemical smog, reducing the service life, etc., and achieves improved lubricity, strong polarity, and sixteen The effect of raising the alkane number

Inactive Publication Date: 2018-08-31
赛坤(浙江自贸区)能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, as an additive, alkyl nitrate also has the disadvantage of producing NOx emissions, which will produce photochemical smog and pollute the environment.
[0003] As the desulfurization process used by petrochemical enterprises in the process of producing low-sulfur diesel oil is gradually strict and intensified, a large amount of strong polar substances such as oxygen and nitrogen-containing compounds and some bicyclic or polycyclic aromatic hydrocarbons in diesel oil are also removed. Reduce the natural lubrication performance of diesel oil, causing some fuel injection pumps that rely on diesel oil to lubricate themselves to wear, greatly reducing their service life

Method used

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  • Anti-wear combustion-supporting dual-effect diesel additive and preparation method thereof
  • Anti-wear combustion-supporting dual-effect diesel additive and preparation method thereof
  • Anti-wear combustion-supporting dual-effect diesel additive and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] Preparation of triethanolamine triethyl ester:

[0025] Sodium acetate (40mmol), triethanolamine (10mmol), and 500ml ethanol were successively added to a 1000mL three-neck flask equipped with a reflux condenser, a thermometer, and a magnetic stirrer, and the temperature was raised to reflux with magnetic stirring, and the reaction was stopped after 10 hours of reaction, and cooled to room temperature. Rectify under reduced pressure at 10mmHg pressure and 75°C. After observing that there is no distillate, raise the temperature to 110°C to continue the rectification. After observing again that there is no distillate, raise the temperature to 140°C to continue the rectification, collect the product, and obtain the final product , yield 43.3%.

[0026] The specific synthesis method is as follows:

[0027]

Embodiment 2

[0029] Triethanolamine triethyl ester cetane modification and flammability:

[0030] The effects of adding different proportions of triethanolamine triethyl ester to diesel oil on the heat of combustion and cetane number of diesel oil are shown in Table 1.

[0031] Table 1 Effect of different proportions of triethanolamine triethyl ester on heat of combustion and cetane number of diesel oil

[0032]

[0033] It can be seen from Table 1 that the heat of combustion of triethanolamine triethyl ester is about 27kJ / g, which is about 65% of that of diesel oil. After mixing triethanolamine triethyl ester in diesel oil, the heat of combustion is generally slightly reduced, with a drop rate of about 2-5kJ / g, which is directly related to the proportion of triethanolamine triethyl ester added to gasoline. The heat of combustion of the mixture of triethanolamine triethyl ester / diesel with a mass ratio of 30% is about 80% of the heat of combustion of diesel. These results indicate tha...

Embodiment 3

[0036] Physicochemical properties of triethanolamine triethyl ester:

[0037] The physical and chemical properties of triethanolamine triethyl ester were carried out in Guangzhou Analysis and Testing Center, China, including density, dynamic viscosity, cetane number, and distillation range. The results are shown in the table below:

[0038] The physicochemical properties of table 2 triethanolamine triethyl ester

[0039]

[0040]

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Abstract

The invention discloses an anti-wear combustion-supporting dual-effect diesel additive and a preparation method thereof. The additive comprises triethanolamine triethyl ester, and the cetane number ofthe triethanolamine triethyl ester is 51 or above. The additive provided by the invention obviously improves the cetane number and the lubricity of diesel oil. The diesel additive provided by the invention meets the requirements of high cetane number, low aromatic hydrocarbon content, low density and low sulfur content in the future development of diesel and has a broad application prospect. Thediesel oil additive has good intersolubility with diesel oil and can also reduce the cold filter plugging point of the diesel oil and improve the lubricity. After the additive is added, combustion ofthe diesel oil is basically not influenced, and polluted toxic exhaust gas is not discharged. In addition, the polarity of functional groups containing oxygen atoms is strong, so that the additive hasgood surface extreme pressure wear resistance.

Description

technical field [0001] The invention belongs to the technical field of diesel oil additives, and in particular relates to an anti-wear, combustion-supporting double-effect diesel oil additive and a preparation method thereof. Background technique [0002] Adding cetane number improver is a simple, efficient and easy-to-operate method to increase the octane number of diesel oil. As a traditional cetane number improver, alkyl nitrate can increase the cetane number of diesel to a large extent. Especially polynitrates, because they produce a large amount of nitrogen oxide free radicals in the combustion process, the efficiency of increasing the cetane number is higher. However, the product has poor stability and is prone to explosion, and the application costs such as production and storage are relatively high. The current solution is to improve the stability of these compounds by mixing multiple and mononitrates, or to add other stabilizers to control, such as diphenylamine a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/222C10L10/12
CPCC10L1/14C10L1/2225C10L10/00C10L10/12C10L2200/0446
Inventor 邹玉梁吕红军李忠涛
Owner 赛坤(浙江自贸区)能源有限公司
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