METHOD OF HYDRO-FINING OIL FRACTIONS Russian patent published in 2009 - IPC C10G65/04 C10G45/08 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to methods of hydrogenating processing oil stock at presence of catalytic system and hydrogen and it can be implemented in oil processing industry. The method of hydro-fining oil fractions at raised temperatures and pressure and circulation of hydrogen containing gas in two stages at presence of a package of alumina support catalyst is performed at the temperature of 330-390°C, pressure 40-50 atm, circulation of hydrogen containing gas 250-400 nm³/m³ of stock, volume rate of stock supply 0.8-1.3 n^-1 at presence of catalysts package, which at the first stage includes the catalyst of a protecting layer as an upper retaining layer and ANM (alumina-nickel-molybdenum) as a lower layer at the following ratio of components, wt %: catalyst of protecting layer 3.0-10.0, alumina-nickel-molybdenum catalyst - the rest; on the second stage catalyst package includes AKM (alumina-cobalt-molybdenum catalyst or ANM as an upper layer and AKM as a lower layer at the following ratio of components, wt %: alumina-cobalt-molybdenum catalyst 20.0-30.0, alumina-nickel-molybdenum catalyst - the rest.

EFFECT: development of efficient method of hydro-fining oil fractions.

3 cl, 1 tbl