METHOD OF PROCESSING SULPHUR-CONTAINING OIL SLUDGE Russian patent published in 2017 - IPC C10G27/10 C10G32/02 

FIELD: oil industry.

SUBSTANCE: present invention relates to a method of processing sulphur-containing oil sludge, which can be used in oil and oil refining industry. Method involves separation of oil sludge water and mechanical impurities, contacting prepared sludge with a catalyst system, consisting of a mixture of an aqueous solution of hydrogen peroxide, alkali metal or ammonium salts -vanadates, molybdates, tungstates, vanadyl sulphate and interphase carrier, taken in amounts to provide molar ratio of metal to sulphur, contained in oil sludge of 1: (100–500), hydrogen peroxide to sulphur, contained in oil sludge (1-3):1, interphase carrier to sulphur, contained in oil sludge of 1:(20-100), at temperature of 40–80 °C for 3–8 hours, with subsequent separation of aqueous phase from product of contacting and heating remaining product at a temperature of 300–400 °C for 3–5 hours to produce end oil product, wherein contacting is carried out with exposure of sludge with catalyst system to electromagnetic radiation at frequency 40–55 MHz, power 0.2–0.5 kW.

EFFECT: proposed method enables to produce an end product with content of sulphur, enabling use thereof without additional hydrofining, using simplified technology.

3 cl, 2 ex