METHOD OF PREPARING ALKYL GASOLINE Russian patent published in 2001 - IPC

FIELD: chemical industry. SUBSTANCE: method comprises sulfuric acid alkylation of isoparaffins with olefins by preparing stable finely dispersed sulfuric acid-isoparaffin emulsion by introducing streams of sulfuric acid and isoparaffins into mixing zone of reactor at pressure differential, subsequent mixing of ascending current of the resulting emulsion in reaction zone with stream of olefins introduced at pressure differential higher then in emulsion preparation stage, and delamination of emulsified mixture by centrifugation, separation and recycle of catalyst and isoparaffins. Commercial product is isolated by rectification. EFFECT: increased yield of alkyl gasoline of improved quality, and lower energy consumption and reduced capital outlays. 4 cl, 1 dwg, 1 tbl