A kind of diesel antiwear agent and preparation method thereof

Abstract

The invention provides an antiwear agent for diesel oil and a preparation method thereof. An antiwear agent for diesel oil, the components and the mass percentage of each component are: 0-50% of triethanolamine vegetable oleate, 0-50% of glycerol vegetable oleate, 1-5% of anti-corrosion components, The antirust component is 1~5%, and the rest is solvent. First, add a specified amount of solvent into the reaction kettle, raise the temperature to 70~80°C, and add vegetable triethanolamine oleate, vegetable glycerol oleate, anti-corrosion components and anti-rust components in proportion in sequence while stirring, and the addition is complete Then continue to stir for half an hour until the product is completely clear and transparent, stop heating, stop stirring when the temperature drops to room temperature, and take out the kettle for barreling. In the present invention, anti-wear, anti-corrosion and anti-rust components are compounded together and added to diesel oil, which can not only play an anti-wear role, but also reduce the corrosion of diesel oil on the oil pump, engine and other parts, and ensure the oil circuit and engine of diesel vehicles of smooth operation.

Description

technical field : [0001] The invention provides an antiwear agent specially used for commercially available diesel oil and a preparation method of the antiwear agent. Background technique : [0002] During the operation of a diesel engine, diesel oil is used not only as a fuel for the engine, but also as a lubricant for parts such as injectors. The trace oxides, nitrides, sulfides and other polar substances and polycyclic aromatic hydrocarbons contained in unhydrogenated diesel provide lubricity for diesel to a certain extent. Due to the ever-increasing requirements for environmental protection, oil refineries generally use methods such as hydrotreating to reduce the sulfur content of diesel. However, during the hydrogenation process, polar substances such as oxides and nitrides and polycyclic aromatic hydrocarbons in diesel oil are also removed, resulting in a greatly reduced lubricating performance of diesel oil. [0003] In order to ensure that diesel products still h...

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Problems solved by technology

[0005]However, although the anti-wear agents prepared by the above method can improve the lubricity of low-sulfur diesel oil, the anti-wear agents currently used are not high in acid value (anti-wear The high acid value of the agent has a certain influence on other properties of diesel), that is, the production process is complicated, the production cost is high, and it cannot be applied on a large scale

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