METHOD FOR HYDROCONVERSION OF POLYMER MIXTURE Russian patent published in 2023 - IPC C10G1/08 C10G1/10 C10G47/02 C10G47/26 C08J11/04 

FIELD: hydroconversion of a polymer mixture.

SUBSTANCE: invention is related to a method for hydroconversion of a polymer mixture and includes pre-treatment of the polymer mixture using methods selected from the group consisting of mechanical methods, chemical methods, thermal methods or combinations thereof, to obtain a pre-treated charge that is mixed or suspended in a hydrocarbon residue under vacuum distillation. The above-mentioned pre-treated charge is mixed with the hydrocarbon residue of vacuum distillation. A mixture of reagents in the suspension phase of an oil-soluble catalyst precursor containing molybdenum, said precursor being liquid, and a stream containing hydrogen are supplied to the hydroconversion section, and hydroconversion reactions are carried out to produce a waste reaction product. The effluent reaction product is separated in at least one high-pressure and high-temperature separator into a vapor phase and a suspension phase. The separated vapor phase is sent to a gas processing section with the function of separating the liquid fraction from the gas containing hydrogen and hydrocarbon gases containing from 1 to 4 carbon atoms; wherein said liquid fraction contains naphtha, atmospheric gas oil (AGO), and vacuum gas oil (VGO). The suspension phase is sent to the separation section, which has the function of separating the fractions of vacuum oil (VGO), heavy vacuum gas oil (HVGO), light vacuum gas oil (LVGO), atmospheric gas oil (AGO) from the stream of heavy organic products that contain asphaltenes, the unconverted feed, the catalyst and the solid formed during the hydroconversion reaction. A portion of said heavy organic products is recycled to the hydroconversion section or mixed with the pre-treated feed prior to being sent to the hydroconversion unit; wherein the remainder of said heavy organic products, which is not recycled to the hydroconversion section or mixed with the pre-treated feed before being supplied to the hydroconversion, forms a purge stream.

EFFECT: production of light hydrocarbon fractions as a result of the implementation of suspension hydroconversion technologies.

27 cl, 19 ex, 4 tbl, 2 dwg