METHOD OF PRODUCING ALKYLBENZOL Russian patent published in 2017 - IPC C07C2/68 C07C4/18 C07C15/73 C07C15/85 

FIELD: chemistry.

SUBSTANCE: alkylation and dealkylation processes are carried out in a cascade of alkylation reactors consisting of two reactors connected in series. The entire first olefin, part of the fresh catalyst complex, part of the benzene charge, and part of the polyalkylbenzenes are fed to the comb of the first reactor, in which the alkylation process proceeds predominantly, a recycle catalyst complex is fed to the middle portion of the first alkylation reactor, to the second reactor pool, in which the dealkylation process proceeds, the remaining portions of the fresh catalyst complex, the benzene charge, the polyalkylbenzenes are fed, and separately the reaction mixture is fed from the first reactor to the bottom part of the second reactor.

EFFECT: increasing the selectivity of the alkylation reaction and increasing the yield of the desired product.

3 cl, 1 dwg, 3 tbl, 2 ex