FIELD: oil refining.
SUBSTANCE: invention concerns a recycling system, in which wet sour oils and other oils having a wide boiling range and/or heavy hydrocarbon flows are gradually separated into light and heavy fractions, using convection heating of heaters used in steam cracking. Depending on the quality of light and heavy fractions, they are directed to one of three operations of quality increasing, including an installation of hydroconversion in an immobile layer, an installation of fluid-catalytic conversion, or an installation of residue hydrocracking. The invention also concerns options of the recycling system, as well as a method for conversion of wet sour oils and other oils having a wide boiling range and/or heavy hydrocarbon flows.
EFFECT: increase in the quality of wet sour oils in more valuable chemical products and raw materials for a complex of recycling of aromatic compounds.
24 cl, 5 dwg
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