PROCESS FOR THE MANUFACTURE OF LUBRICATING BASE OILS FROM NAPHTHENIC FEEDSTOCKS

摘要

PROCESS FOR THE MANUFACTURE OF LUBRICATING BASE OILS FROM NAPHTHENIC FEEDSTOCKS Process for the manufacture of naphthenic base oils having a viscosity index of up to 100 by catalytically converting a naphthenic feedstock at elevated temperature and pressure in the presence of hydrogen, in which process a hydrogen partial pressure of at least 100 bar is applied in the presence of a fluorided, nickel containing catalyst also comprising tungsten and/or molybdenum. Good quality naphthenic base oils containing reduced amounts of aromatic compounds, in particular polycyclic aromatic compounds, are prepared in high yields.