METHOD AND APPARATUS FOR PROCESSING GASOLINE FRACTIONS Russian patent published in 2025 - IPC C10G63/04 C07C6/12 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of processing a gasoline fraction, which includes the following steps: I) reacting the gasoline fraction in the aromatization unit and separating the obtained reaction product to obtain C₄^--component, C₅-component, C₆-C₇-component, C₈-component and C₉⁺-component; II) interaction of C₆-C₇-component and C₉⁺-component from stage I) in the unit for cracking and conversion of aromatic compounds and separation of the obtained reaction product to obtain C₄^--component, C₅-component, C₆-C₇-component, C₈-component and C₉⁺-component, wherein the reaction taking place in the cracking and conversion unit of aromatic compounds includes a cracking reaction of non-aromatic compounds and a transalkylation reaction; III) cleaning at least one of C₈-components from steps I) and II) and separation of the product to obtain C₄^--component, C₅-component, C₆-C₇-component, aromatic C₈-hydrocarbon (s) and C₉⁺-component; IV) carrying out steam cracking or dehydrogenation reaction on at least part of at least one of C₄^--components from stages I), II) and III); V) using at least part of at least one of C₅-components from steps I), II) and III) for mixing gasolines; and vi) recycling C₆-C₇-component and C₉⁺-component from stage II) and optionally at least part of at least one of C₆-C₇-component and C₉⁺-component from stage III) into a unit for cracking and conversion of aromatic compounds of stage II) for further reaction. Invention also relates to a version of the method and apparatus for carrying out the method of processing a gasoline fraction.

EFFECT: effective expansion of the range of initial raw material for production of aromatic compounds and olefins and efficient complex use of gasoline fractions.

11 cl, 4 dwg, 5 tbl, 39 ex