| 摘要 |
<p>1466192 Alkylating isoparaffins UOP Inc 13 May 1974 [14 May 1973] 21015/74 Heading C5E A process for alkylating an isoparaffin, e.g. C 4 -C 7 with an olefin, e.g. C 3 -C 7 in contact with a hydrogen fluoride catalyst, to produce a normally liquid alkylate product, comprises the steps of: (a) reacting said isoparaffin with said olefin, in admixture with said catalyst, in an alkylation reactor to produce effluent containing alkylate, unreacted isoparaffin, catalyst and polymer; (b) introducing at least a portion of said effluent into a first separation zone and recovering therefrom a hydrocarbon phase and a hydrogen fluoride phase containing said polymer; (c) recycling a portion of said hydrogen fluoride phase to said reactor; (d) combining at least a portion of the remaining hydrogen fluoride phase with at least a portion of said hydrocarbon phase, the latter having been heated to such a temperature that the resulting mixture has a temperature of from 50‹ to 95‹ C. and introducing the mixture into a second separation zone; and, (e) recovering from said second separation zone (i) unreacted isoparaffin and (ii) alkylate product, containing polymer.</p> |
