Antiwear agent and preparation method thereof

Abstract

The invention relates to an anti-wear agent and a preparation method thereof. The anti-wear agent is prepared from the following raw materials: 18.5 to 21.5 parts of lignoceric acid, 19.5 to 20.5 parts of stearic acid, 38.5 to 41.5 parts of glass cement oil and 18.5 to 21.5 parts of pentaerythritol. The preparation method comprises the following steps: after mixing the raw materials, reacting, and then carrying out dehydration refining to synthesize a novel diesel anti-wear agent. The anti-wear agent has the beneficial effects that the anti-wear agent prepared in the invention is high in adaptive capacity, can be used for improving the anti-wear performance of various atmospheric and vacuum, catalytic and hydrogenation diesels, and has good anti-wear performance for diesels with different raw materials and technologies through tests; the anti-wear agent is superior in performance, the performance completely meets and is superior to the relevant standard of the industry, and the addition amount can be reduced by 10% to 16% compared with an existing anti-wear agent; and the anti-wear agent meets the increasing environmental requirements of the diesels.

Description

technical field [0001] The invention relates to an antiwear agent, in particular to an antiwear agent for improving the antiwear performance of diesel oil and a preparation method thereof. Background technique [0002] At present, due to the requirements of environmental protection and reduction of exhaust emissions, cleaner and more environmentally friendly diesel oil is required. The standard of diesel oil is constantly improving, and the deep processing of diesel oil removes nitrogen, sulfur and other elements in diesel oil. The removal of these elements is at the same time. It also reduces the anti-wear performance of diesel, making diesel engines more susceptible to wear, so the usage and market demand of diesel anti-wear agents continue to expand. [0003] Most of the existing diesel antiwear agents are fatty acid type and fatty acid ester type. This type of antiwear agent is all C18 acid, which has different susceptibility to different hydrogenated diesel oils, and th...

AI Technical Summary

Problems solved by technology

[0002] At present, due to the requirements of environmental protection and reduction of exhaust emissions, cleaner and more environmentally friendly diesel oil is required. The standard of diesel oil is constantly improving, and the deep processing of diesel oil removes nitrogen, sulfur and other elements in diesel oil. The removal of these elements is at the same time. It also reduces the anti-wear performance of diesel, making diesel engines more susceptible to wear, so the usage and market demand of diesel anti-wear agents continue to expand

[0003] Most of the existing diesel antiwear agents are fatty acid type and fatty acid ester type. This type of antiwear agent is all C18 acid, and has different susceptibility to different hydrogenated diesel oils, and the use effect is not stable.