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柴油抗磨剂有什么作用和好处?
作者:admin 来源:本站 发布时间:2020-7-10 15:27:49 浏览次数:67

  柴油抗磨剂作用意义

  Significance of diesel antiwear agent

  保护环境,降低汽车尾气对危害,提高柴油的品质,柴油的低硫化越来越受到世界各国的普遍关注,我国的柴油标准自2011年7月1日起执行GB19147-2009车用柴油标准,硫含量要求小于0.035%,对硫含量提出了较严格的要求。柴油在发动机中既作为燃料有作为输油泵的润滑剂,但是通过加氢脱硫等精制手段降低硫含量的同时,也降低了柴油的天然润滑性,造成使用低硫柴油的发动机易磨损和损坏,缩短发动机的寿命,严重时可能引起油泵泄漏。因此柴油润滑性改进剂-柴油抗磨剂作为有效提高柴油润滑性能的手段,将到广泛的应用。

  In order to protect the environment, reduce the harm of automobile exhaust and improve the quality of diesel, the low sulfur content of diesel has been paid more and more attention all over the world. Since July 1, 2011, China's diesel standard has implemented the standard of GB 19147-2009 for vehicle diesel oil, and the sulfur content requirement is less than 0.035%, which puts forward strict requirements for sulfur content. Diesel oil is not only used as fuel in the engine, but also as the lubricant of oil pump, but also reduces the natural lubricity of diesel oil while reducing the sulfur content by refining methods such as hydrodesulfurization. As a result, the engine using low sulfur diesel is easy to wear and damage, shorten the service life of the engine, and may cause oil pump leakage in serious cases. Therefore, diesel oil lubricity improver diesel antiwear agent as an effective means to improve the lubricating performance of diesel oil will be widely used.

  以前,由于对柴油的精制要求不高,柴油中含有较多的杂环芳烃硫化物或氮化物、多环芳烃的硫化物或氮化物,而这些物质是天然的抗磨组分。因此,没有出现柴油的润滑性问题。近年来,随着环保对柴油质量提出的要求越来越高,柴油中硫含量受到了严格的控制,柴油的润滑性问题逐渐暴露出来。大多数低硫柴油润滑性很差,硫含量小于500μg/g的柴油就可以会使发动机产生磨损,而欧Ⅳ标准规定柴油的硫含量不能大于50μg/g。柴油低硫化将成为未来车用柴油发展的必然趋势,但随之引起的低硫或超低硫柴油的润滑性问题必然越来越严重。

  In the past, due to the low requirement of diesel oil refining, diesel oil contained more heterocyclic aromatic sulfide or nitride, polycyclic aromatic hydrocarbon sulfide or nitride, which were natural anti-wear components. Therefore, there is no problem with the lubricity of diesel oil. In recent years, with the increasing requirements of environmental protection for diesel oil quality, the sulfur content in diesel is strictly controlled, and the lubricity of diesel oil is gradually exposed. Most low sulfur diesel oil has poor lubricity. Diesel with sulfur content less than 500 μ g / G can cause engine wear, while Euro IV standard stipulates that the sulfur content of diesel should not be greater than 50 μ g / g. Low sulfur diesel oil will become an inevitable trend in the development of automotive diesel in the future, but the lubricity problem of low sulfur or ultra-low sulfur diesel will become more and more serious.

  柴油抗磨剂作用原理

  Action principle of diesel antiwear agent

  润滑性改进剂是具有一定极性和化学反应活性的化合物。当温度较缓和时,吸附为物理吸附;在温度很高时,极性基团与表面活性金属发生化学反应,形成金属有机化合物,使润滑膜不发生破裂,起到提高润滑性能的作用。

  Lubricity improvers are compounds with certain polarity and chemical reactivity. When the temperature is mild, the adsorption is physical adsorption; at high temperature, the polar group reacts with the surface active metal to form metal organic compounds, which can prevent the lubrication film from cracking and improve the lubrication performance.

  以上是关于柴油抗磨剂作用原理的相关介绍,希望对你们有所帮助,想要了解更多内容请继续关注我们的网站。

  The above is about the diesel antiwear agent principle related introduction, hope to help you, want to know more content, please continue to pay attention to our website.


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