Researches On Synthesis Technology Of Clean Diesel Anti-wear

With the environmental regulations increasingly strict, more and more attentions paid to the cleanness of oil products. Reduce the sulfur content of diesel fuel can reduce diesel engine pollutants of CH,CO, particulate matter(PM), what is particularly important for environmental protection more strictly and Expanding the scope of application of diesel engine, cleanness has become the development direction of clean diesel. The polarity compounds of containing nitrogen, oxygen and Polycyclic aromatic hydrocarbons, lubricating material in nature was reduced. leading diesel lubricity attenuation, as the refining process the purpose of the desulfurization process with harsh hydrogenation process. Diesel lubrication additives(anti-wear agent) is simple and effective method to improve diesel lubricity. Diesel lubricity directly add,different chemical composition, the use of performance will directly affect the composition of diesel, the use of the engine and pollutant emissions. With diesel Conform national standard Ⅳ, Ⅴ promoting. diesel lubrication additives scope increases and expanded, diesel lubrication additives cleanness influence for clean diesel is becoming more and more bigger. This paper combined the basic conception of green chemical industry with clean diesel lubrication structure, analyzed diesel lubrication synthetic existed on the market. From the raw material, catalyst, production process and other aspects,study a method of synthesis of clean diesel lubrication.This paper expounds the background and significance of clean diesel lubrication synthesis. reviewed the research status of diesel lubrication at home and abroad, and studied clean raw material and the process method of diesel lubrication synthetic. Determined the fatty acid ester type diesel lubrication for the target product,choice single unsaturated fatty acids oleic acid and glycerol as raw materials esterification reaction in reactor. Selected P-toluene sulfonic acid as catalyst,xylene as carrying agent,washed many times after the reaction. Solved diesel lubrication contained sulfur, nitrogen, chlorine, boron and metal not clean material and so on. satisfied the requirement of diesel lubrication technology indicators,what’s more the lubrication effect is excellent.Through the experiment and the response surface method determined the optimum mole ratio of the reaction is 1.51, catalyst(0.58% oleic acid), water carrying agent(2%), reaction temperature 142.8℃, the reaction time 4.2h, reaction pressure 0.01 MPa, product wash and dry after the reaction, determination the yield above 98%, characterized the products show that lubrication satisfied the requirement of diesel lubrication, and cleaner, of great significance in diesel clean development.