Research On Diesel Anti-wear Agents

The diesel oil in the world of applications is increasing, China's urban diesel standards will wear scar has been less than 460μm in diameter out in the indicators. Therefore, in the continuous deepening of diesel refined background, the development of diesel anti-wear agent is of great significance.The research papers containing aromatic group of long-chain higher alcohols and esters containing aromatic group of long-chain amide senior product of the anti-wear, through trial and inspected the esterification reaction amide the optimum conditions and, through anti-wear test identified anti-wear agent mixed system the best formula. The results show that the best esterification conditions are as follows: raw materials mixed with acid alkylation glycerol ratio of 1:1, for solvent toluene, esterification catalyst titanium and butyl acid ratio was 0.01, reaction Temperature of 130℃~140℃, reaction time 10 hr; best amidation reaction conditions are as follows: raw materials mixed with acid alkylation ethylenediamine molar ratio of 1:1, for solvent toluene, the reaction temperature is 160℃~170℃, reaction time 3 hr. Will be mixed with glycerol salicylic acid alkylation of Ester and mixed with acid alkylation ethylenediamine amidation products, according to the ratio of 4:1 for a complex, diesel by anti-wear agent SY108 Antiwear best effect.According to the diesel oil in the sulfur content difference, antiwear additive SY108 joins the quantity when 200μg/g~600μg/g, has outstanding anti-rubs the effect, simultaneously antiwear additive SY108 not to the diesel oil main performance, like the oxidized stability, the low-temperature fluidity and the cetane number has the obvious negative influence.