FUEL DISTILLATE PRODUCTION PROCESS Russian patent published in 2007 - IPC C10G9/00 

FIELD: petroleum processing.

SUBSTANCE: invention relates to processing heavy petroleum residues into fuel distillates via thermal hydrocracking involving donor-solvent processes. Process comprises mixing residual petroleum stock with liquid aromatized additive, which is not conventional expensive shale oil with boiling range 200-400^°C, but inexpensive oil selective purification extract containing at least 8% atomic hydrogen, which additive is employed in amount 10 to 50% based on the weight of stock. Preferably, thermal cracking process is carried out under hydrogen pressure 5.0-15.0 MPa at temperature 360-450^°C and stock supply flow rate 0.5 to 5.0 h^-1 by volume. Liquid aromatized additive may be supplemented by 0.001-1.0% of nickel catalyst.

EFFECT: increased economical efficiency of the process due to employment of inexpensive liquid aromatized additive.

3 cl, 1 dwg, 5 tbl, 16 ex