COMBINED METHOD OF PRODUCING HIGH-VISCOSITY MARINE FUEL AND OIL COKE Russian patent published in 2016 - IPC C10L1/04 C10G57/00 C10G59/00 

FIELD: fuel.

SUBSTANCE: invention discloses combined method of producing high-viscosity marine fuel and oil coke, including application of light and heavy gas oils of coking, characterized by that during oil refining vacuum gas oil fraction is extracted, 95 % of which boils away in range of 350-500 °C, and tar-fraction boiling away at temperature above 500 °C, wherein catalytic cracking with extraction of heavy gas oil fraction from 180 to 400 °C is made for vacuum gas oil fraction from 350 to 500 °C, which is preliminarily hydrotreated, visbreaking - tar with extraction of visbreaking-residue, and delayed coking - mixture of tar and heavy gas oil of catalytic cracking, taken in weight ratio of 70-90:10-30, with extraction of light gas oil of delayed coking of 180-360 °C from reaction products and oil electrode coke with subsequent blending of visbreaking-residue (VR) and light gas oil of delayed coking (LGDC) from 180 to 360 °C to obtain high-viscosity marine fuel, taken in weight ratio: Visbreaking-residue 10-70, Light gas oil of delayed coking 30-90.

EFFECT: technical result consists in production of low-sulphur high-viscosity marine fuel and oil electrode coke of high quality with low content of sulphur and vanadium for electrode industry.

1 cl, 3 dwg, 9 ex