METHOD OF OBTAINING COKE FROM PETROCHEMICAL AND OIL REFINING RESIDUE Russian patent published in 2008 - IPC C10B55/00 

FIELD: chemistry.

SUBSTANCE: invention pertains to the technology of recycling petroleum residues of petrochemical and/or oil refining in a slow coking process, and can be used for improving properties of the obtained petroleum coke. The petroleum coke is obtained by mixing three or more residues of petrochemical and/or oil refining with subsequent slow coking. The said mixture contains not more than 5·10⁵ oligomer particles/cm³, with cross sectional area of more than 1000mkm², and particles, with cross sectional area in the range of 0.5÷10 mkm², the fraction of which is not less than 60% of the overall quantity of particles in the mixture.

EFFECT: method simplifies the technology of obtaining coke of better quality on the content of sulphur and vanadium due to exclusion of the stage of treating the coke with hydrogen at high pressure.

7 cl, 12 ex, 1 tbl