METHOD OF HYDROPROCESSING IN ACIDIC MEDIUM FOR PRODUCTION OF BASIC LUBRICATING OILS Russian patent published in 2014 - IPC C10G65/04 C10G69/02 

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining basic lubricating oil, including bringing hydropurified raw material and hydrogen-containing gas in contact with catalyst of deparaffinisation under conditions efficient for catalytic deparaffinisation, where combined total content of sulphur in liquid and gaseous formed, supplied to the stage of bringing into contact, constitutes more than 1000 wt ppm with respect to hydropurified raw material. Catalyst of deparaffinisation includes, at least, one zeolite with monosized pores, formed by ten-member rings, at least, one metal of group VIII and, at least, one fire-proof binding agent based on metal oxide with low surface area, and in which catalyst of deparaffinisation has ratio of area of surface of micropores to total surface area equal to 25% or more, where total surface area equals external area of zeolite surface plus area of surface of fire-proof binding agent based on metal oxide.

EFFECT: increased output of deparaffinised lubricating oil.

17 cl, 14 dwg, 7 tbl, 20 ex