METHOD OF PRODUCING NAPHTHENIC PROCESS OIL BY HYDROGENATION Russian patent published in 2013 - IPC C10G35/04 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing naphthenic process oil, having ratio of content of carbon atoms of aromatic hydrocarbons C_A to content of napthenic carbon atoms C_N to content of carbon atoms of paraffin hydrocarbons C_P, determined in accordance with ASTM D 2140, of 0-30 wt % to 20-65 wt % to 20-55 wt %, and content of polycyclic aromatic compounds, in accordance with IP 346, of less than 3 wt %, characterised by that a process oil educt having content of polycyclic aromatic compounds, determined in accordance with IP 346, of at least 3 wt %, and content of naphthenic carbon atoms C_N≤25 wt %, is hydrogenated with hydrogen using a metal catalyst at temperature of 200-400°C and pressure of 80-250 bar. The invention also relates to use of naphthenic process oil.

EFFECT: obtaining high-quality naphthenic process oil with high content of naphthenic hydrocarbon compounds.

10 cl, 3 dwg, 4 tbl, 2 ex