CATALYTIC CRACKING METHOD FOR IMPLEMENTING GENUINE CLOSED CYCLE OF CONVERTING PYROLYSIS OIL OBTAINED FROM PLASTIC WASTES INTO PRIMARY OLEFINS AND INTERMEDIATE PETROCHEMICAL PRODUCTS Russian patent published in 2024 - IPC C10G1/08 C10G1/10 C10G47/24 C08J11/10 

FIELD: chemistry.

SUBSTANCE: disclosed are methods and apparatus for producing starting materials and for producing true closed-cycle polymers. Plants and methods may include treatment of a stream of hydrocarbons from wastes, such as pyrolysis oil of plastic wastes, in the first reactor plant using the catalyst mixture and processing the fossil raw material in the second reactor plant using the catalyst mixture. Catalyst mixture can be supplied to each, first and second, reactor plant from common catalyst regenerator. In the second reactor plant, an effluent stream containing hydrocarbon products of fossil origin can be obtained, effluent stream containing hydrocarbon products from wastes can be obtained in the first reactor plant. After separation, the spent catalyst from each, first and second, reactor plant can be returned to the common catalyst regenerator.

EFFECT: conversion of pyrolysis oil obtained by thermal pyrolysis of wastes, such as plastic wastes, into suitable primary olefins and intermediate petrochemical products.

28 cl, 2 ex, 3 tbl, 4 dwg