Process for aliphatic alkylation in inverse emulsion with premixing of the catalyst and the olefin

摘要

Alkylation of at least one isoparaffin (I) selected from isobutane and/or isopentane by at least one 2-6 C olefin (II) in the presence of a liq acidic catalyst (III), comprises: (i) mixing (II) and most of (I) in a first zone, in order to obtain a diluted charge contg. (II); (ii) forming an emulsion of (III) in a hydrocarbon effluent contg. most of (I) in an emulsion zone, the effluent constituting the continuous phase of the emulsion formed; (iii) mixing most of the emulsion and most of the diluted charge in a second zone; and (iv) reacting the above mixt in the reaction zone.