INTEGRATION OF RESIDUE HYDROCRACKING AND SOLVENT DEASPHALTING Russian patent published in 2018 - IPC C10G67/04 B01J8/18 

FIELD: biochemistry.

SUBSTANCE: present invention relates to a method for upgrading residuum hydrocarbons (versions) and to versions of a system for implementing said method. One of the methods includes contacting a first portion of a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions, including a vacuum residuum fraction in a standard fractionation system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; contacting the asphalt fraction, the second portion of the residuum hydrocarbons and hydrogen with a third hydroconversion catalyst in a third ebullated bed hydroconversion reactor system; recovering a third effluent from the third ebullated bed hydroconversion reactor system and fractionating the third effluent from the third ebullated bed hydroconversion reactor system to recover one or more hydrocarbon fractions.

EFFECT: present invention provides greater conversion of hydrocarbons and removal of sulphur.

20 cl, 3 dwg