METHOD FOR OBTAINING GASOLINE FRACTIONS AND AROMATIC HYDROCARBONS Russian patent published in 2023 - IPC C10G35/95 C10G59/02 

FIELD: oil refining; petrochemical industry.

SUBSTANCE: method for producing gasoline fractions and aromatic hydrocarbons, in which a hydrocarbon fraction, a fraction containing one or more olefins selected from the group including ethylene, propylene, normal butylenes, isobutylene, and water are distributed evenly into a reactor filled with a zeolite catalyst and including at least two consecutive independent reaction volumes, or at least two series-connected reactors. The hydrocarbon fraction is supplied to at least the first reaction volume, the olefin-containing fraction and water are also supplied to the first reaction volume, the second and subsequent reaction volumes are supplied with a mixture of the olefin-containing fraction and water, or only water, the volumetric supply of water is carried out in the first reaction volume - from 20 to 25% of the total volume of water supplied, in the second and subsequent - the rest, so that water is supplied to each reaction volume, and the volumetric rate of water supply is adjustable. The proportions of the supplied components are 85-92.7 wt.% hydrocarbons; 3.7-7 wt.% olefin-containing fraction; 2-10 wt.% water.

EFFECT: creation of a method for the production of gasolines or concentrates of aromatic compounds by joint processing of hydrocarbon fractions and olefin-containing fractions with distributed supply to several series-connected reaction volumes with controlled water supply.

12 cl, 5 tbl, 19 ex