METHOD OF ALKYLATION OF BENZENE AND ALKYLATOR FOR REALIZATION OF THIS METHOD Russian patent published in 2007 - IPC C07C2/68 C07C15/04 B01J19/18 

FIELD: production of monomers used for production of high-molecular compounds, alkylation of benzene by lower olefins in alkylator.

SUBSTANCE: proposed method is carried out in three stages: at the first stage, liquid hydrocabons, viz.: dehydrated benzene, polyalkylbenzenes and return benzene are mixed; at the second stage, ethylene and other olefins are introduced in liquid hydrocarbon mixture and at the third stage, aluminum chloride-based catalytic complex is introduced; at all three stages, flow moves in alkylator in turbulent mode; alkylator is provided with turbulization aids. Alkylator includes vertical cylindrical hollow housing with component inlet branch pipes fitted from below; components are delivered also through comb; branch pipes for discharge of reaction mass and gaseous products are mounted in the upper position. Housing is made from contraction tube, diffuser and cylindrical members interconnected coaxially. Initial component inlet branch pipes are located along housing axis; olefin and catalytic complex inlet branch pipes are located at distance from liquid hydrocarbon inlet branch pipes no less than two turbulization sections.

EFFECT: increased yield of alkyl benzene due to continuous process in small-sized equipment.

3 cl, 1 dwg, 3 ex