METHOD AND SYSTEM FOR HYDROPROCESSING OF DE-OILED ASPHALT Russian patent published in 2023 - IPC C10G69/04 C10G67/02 

FIELD: processing hydrocarbon oil products.

SUBSTANCE: invention discloses a method for hydroprocessing oil-free asphalt, which includes: (2) introducing the oil-free asphalt and aromatics-containing stream into a first reaction unit for a hydrogenation reaction, the first reaction unit containing a high mineral content feedstock and/or a hydrogenation catalyst and the first reaction unit being a fixed bed hydrogenation unit; (21) fractionating the liquid phase product from the first reaction unit to obtain a first light component and a first heavy component; (31) introducing the first light component into a second reaction unit for reaction to produce a gasoline component, a diesel component, and/or a BTX (benzene, toluene, xylene) component of the feedstock; and (32) introducing the first heavy component into a delayed coker for the reaction; or using the first heavy component as the low sulphur component of marine diesel fuel. The invention is also related to a de-oiled asphalt hydroprocessing system, heavy crude oil processing systems, a high aromatics fractionated oil processing system, a heavy crude oil processing system, and a high aromatics fractionated oil processing system.

EFFECT: highly profitable disposal of de-oiled asphaltene (DOA).

52 cl, 59 ex, 35 tbl, 6 dwg