从API基础油分类谈对基础油质量的认识

基础油作为成品油的主体，其中的饱和烃和芳轻是影响成品油性能的主要组分，而硫氮化合物由于其多变性和含量极少，对成品油性能（主要是氧化安性性）影响很小，且没有很强的规律性。今后的工作方面应是用加氢工艺以提高基础油中饱和烃含量，降去芳烃及硫氮化合物，从而改善基础油对添加剂的感受性。

DISCUSSION ON THE QUALITY OF BASE OIL FROM API CLASSIFICATION

With base oil as its main boay,the properties of finished oil were effected by saturates and arene in base oil.But sulfur nitrogen compound have a little effect on the properties of finished oil (oxidation stability mainly)due to its changeability and a little content,without obvious regularity. It should be our working emphasis hereafter to improve saturates content in base oil, remove arene and sulfur nitrogen compound with hydrogenation technique,so as to improve the receptivity of base oil on additive.