METHOD FOR INCREASING THE RECOVERY OF A LIQUID HYDROCARBON PRODUCT Russian patent published in 2021 - IPC C10G35/95 

FIELD: oil products.

SUBSTANCE: invention relates to a method for increasing the yield of a liquid hydrocarbon product to more than 70 wt. % per the supplied hydrocarbon fraction in a method for producing gasoline, in which: three streams are used as raw materials, the first of which includes a hydrocarbon fraction, the second stream includes oxygenate, the third stream includes an olefin-containing fraction, a) where the olefin-containing fraction includes one or more olefins selected from the group consisting of ethylene, propylene normal butylene isobutylene, a total of between 10 to 50 wt. %, and contains from 0.5 to 8 wt. % of hydrogen, b) by maintaining the mass feed rate of the raw material in the range of 1.5-1.9 h-1, and using three reaction zones filled with a zeolite catalyst, the first stream is fed to at least one reaction zone, the second stream is distributed into three reaction zones, the third stream is distributed into three reaction zones, and the flow of product from the first reaction zone is supplied to the second reaction zone, and the flow of product from the second reaction zone is fed into the third reaction zone.

EFFECT: proposed method makes it possible to achieve an octane number according to the research method of more than 90 units, with a total aromatics content of not more than 37.9 wt. % and benzene not more than 1.2 wt. %.

31 cl, 6 tbl, 7 ex