It was proposed that the hydrotreating process could be optimized by reducing the aromatics content in feedstock, which could result in high saturates in the lube base oil product.

• 适当降低进料中的芳烃含量,可以优化加氢处理过程,提高基础油中的饱和烃含量,并使芳烃和环烷烃以单环烃为主,获得较高粘度指数的润滑油基础油产品。