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添加柴油抗磨剂的意义?
作者:admin 来源:本站 发布时间:2020-8-25 13:33:10 浏览次数:212

  柴油抗磨剂是一种柴油添加剂,同时对于柴油非常重要。随着世界各国对环保的日益重视,减少柴油排气污染、生产高质量的清洁柴油,已成为现代炼油工业的发展方向。研究表明,硫是增加柴油发动机排放物中HC、CO特别可吸入颗粒物(PM)的有害元素,所以降低柴油中硫含量对改善大气污染尤为重要。目前世界上许多国家和地区已经将柴油的含硫量降低到了10-500ppm的水平,以减少柴油发动机的排放。柴油发动机与汽油发动机相比,柴油发动机具有高效耐用、清洁、维修费用低等优点,因而从环保节能的角度出发,柴油发动机越来越受到青睐而应用大增。柴油在发动机中既作为燃料又作为输油泵和高压油泵的润滑剂,如果柴油的润滑性不好,就无法为油泵提供可靠的润滑,将导致发动机的精密部件过度磨损、配合精度下降、柴油雾化不良、发动机功率不足或怠速不稳等问题,造成发动机寿命降低,严重时可能引起油泵漏油。

  Diesel antiwear additive is a kind of diesel additive, which is very important for diesel oil. With the increasing attention to environmental protection in the world, reducing diesel exhaust pollution and producing high-quality clean diesel have become the development direction of modern oil refining industry. The results show that sulfur is a harmful element which increases HC, Co, especially PM in diesel engine emissions, so reducing sulfur content in diesel is particularly important to improve air pollution. At present, many countries and regions in the world have reduced the sulfur content of diesel to the level of 10-500ppm in order to reduce the emission of diesel engine. Compared with gasoline engine, diesel engine has the advantages of high efficiency, durability, cleaning and low maintenance cost. Therefore, from the perspective of environmental protection and energy saving, diesel engine is more and more favored and widely used. Diesel oil is not only used as fuel in engine, but also as lubricant of oil pump and high-pressure oil pump. If the lubricity of diesel oil is not good, it can not provide reliable lubrication for oil pump, which will lead to excessive wear of engine precision parts, decline of matching accuracy, poor diesel atomization, insufficient engine power or unstable idle speed and other problems, resulting in engine life reduction, which may be caused in serious cases The oil pump leaks oil.

  由于普遍采用了较苛刻的加氢工艺生产低硫、低芳烃、十六烷值高、馏分轻的清洁柴油,大量天然极性含氧、含氮化合物以及多环、双环芳烃等抗磨物质被除去,使得柴油润滑性能大大下降,造成使用低硫、超低硫柴油的发动机频频出现油泵磨损失效的问题,警示人们对柴油润滑性的重视。改善低硫柴油润滑性的措施主要有两种:其一是调节工艺操作和使进料中的可转换润滑性的物质浓度;其二是使用具有润滑性的添加剂。由于炼油厂操作条件有限,目前能满足对低硫柴油润滑性需求的比较经济的一种做法是采用润滑性添加剂。润滑性添加剂即柴油润滑性改进剂也叫柴油抗磨剂,主要是添加一些极性化合物,在不影响柴油其它性能的前提下,可以弥补因经加氢处理而造成柴油中起润滑作用的极性物质的流失,达到改善低硫柴油润滑性的目的。在柴油中添加柴油润滑性改进剂具有简单、经济、行之有效的优点。自上世纪九十年代以来,该方法在世界各国得到了广泛的应用。目前国内使用的柴油添加剂主要有脂肪酸及其酯化合物。

  Due to the harsh hydrogenation process is widely used to produce clean diesel oil with low sulfur, low aromatics, high cetane number and light fraction, a large number of natural polar oxygen-containing compounds, nitrogen-containing compounds, polycyclic aromatic hydrocarbons, bicyclic aromatic hydrocarbons and other anti-wear substances are removed, which greatly reduces the lubricating performance of diesel oil, resulting in frequent oil pump wear failure of engines using low sulfur and ultra-low sulfur diesel People pay more attention to the lubricity of diesel oil. There are two main measures to improve the lubricity of low sulfur diesel oil: one is to adjust the process operation and make the concentration of convertible lubricity substance in the feed; the other is to use additives with lubricity. Due to the limited operating conditions of refineries, it is an economical way to meet the lubricating demand of low sulfur diesel oil at present. Lubricity additive is diesel oil lubricity improver, also known as diesel antiwear agent. It mainly adds some polar compounds, which can make up for the loss of lubricating polar substances in diesel oil caused by hydrotreating, so as to improve the lubricity of low sulfur diesel oil. It is simple, economical and effective to add diesel lubricity improver to diesel oil. Since the 1990s, this method has been widely used in the world. At present, the main diesel additives used in China are fatty acids and their ester compounds.

  柴油抗磨剂的作用很大,尤其是在现在提倡绿色环保的情况下,柴油抗磨剂非常重要。大家如想要了解更多内容欢迎点击恒信汽油动力改进剂http://www.jnsycd.com网站。

  Diesel antiwear agent plays a very important role, especially in the case of advocating environmental protection, diesel antiwear agent is very important. If you want to know more, please click Hengxin gasoline power improver http://www.jnsycd.com Website.


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