METHOD FOR PROCESSING OF HEAVY CHARGE, SUCH AS HEAVY BASE OIL AND STILLAGE BOTTOMS Russian patent published in 2009 - IPC C10G67/04 

FIELD: chemistry.

SUBSTANCE: method involves the procedures as follows: mixing of heavy charge (1b) at least partially and at least bulk flow containing alphaltenes prepared in the deasphalting plant, or at least bulk flow containing alphaltenes with the appropriate hydrogenation catalyst, and supplying of the prepared mixture to the hydrotreating (HT) reactor with hydrogen or mixed hydrogen and H₂S loaded thereto; supplying of the flow containing hydrotreating product and the catalyst in dispersed phase to one or more distillations (D) or flash evaporation, thereby various fractions resulted from hydrotreating are separated; at least partial recycling of stillage bottom (goudron) or liquid delivered from the flash evaporation unit, containing the catalyst in dispersed phase enriched by metal sulphides resulted from charge demetallation, and possibly, coke with solvents added to the deasphalting module (DAM) whereto heavy charge (1a) is supplied at least partially to make two flows, one consisting of deasphalted oil (DAO), and another containing alphaltenes, differing that the flow containing hydrotreating product and the catalyst in dispersed phase prior to supplying to one or more distillations or flash evaporation, is pre-separated at high pressure to produce light fraction and heavy fraction. The latter is delivered for the specified distillation (D) procedure (procedures) only.

EFFECT: method enhancement.

36 cl, 6 ex, 8 tbl, 1 dwg