Removal of nitrogen compounds especially basic nitrogen compounds from Fushun shale oil with acidic reagent as extraction reagent and lye as back-extraction reagent was investigated. The results show that removal rate of basic nitrogen compounds increased with the increasing mass ratio of agent to oil, reaction temperature, reaction time and settling time respectively, at the same time the quality of shale oil is improved in a way. When mass ratio of agent to oil ratio was 1∶1, reaction temperature was 60 ℃, reaction time was 20 min and settling time was 4 h with acidic reagent A, removal rate of basic nitrogen compounds is up to 96.04%, and that of total nitrogen compounds is up to 38.25%, the yield of shale oil is 97.18%.

Shale oil,   ,  Basic nitrogen compounds,   ,  Acid-basic extraction,   ,  Denitrogenation