FIELD: hydrocarbon processing.
SUBSTANCE: method for the production of distillate hydrocarbons and coke, which includes supplying a hydrocarbon feedstock containing a residual hydrocarbon fraction to a residue hydrocracking reactor system to convert the hydrocarbons contained therein to produce a hydrocracking outlet stream. In a separation system, the separation of a hydrocracking effluent stream into one or more distillate hydrocarbon fractions and a vacuum residues fraction, wherein the separation system comprises a light gas separator, an atmospheric distillation unit and a vacuum distillation unit, wherein the separation of the hydrocracking effluent stream includes: in the light gas separator, a separation of the hydrocracking effluent stream with the extraction of a light fraction containing hydrogen and hydrocarbons having a boiling point less than 35°C, and heavy fraction; at an atmospheric distillation unit, separation of the heavy fraction into one or more fractions of atmospheric distillate and a fraction of atmospheric residues; at a vacuum distillation unit, separation of the atmospheric residue fraction into one or more vacuum distillate fractions and a vacuum residue fraction. In a coker system, converting the vacuum residue fraction into a coke product and the coker effluent steam stream, recovering the coke product and supplying the coker effluent steam stream to the separation system; hydrotreating one or more distillate hydrocarbon fractions to produce a hydrotreating effluent stream; and separating the hydroprocessing effluent stream into commercial distillate hydrocarbon fractions. The invention also relates to a system for the production of distillate hydrocarbons and coke.
EFFECT: high operating efficiency with lower capital costs, lower CO2 emissions and a smaller area for equipment placement.
12 cl, 3 dwg
