Abstract:

The hydrogenation-catalytic distillation process for diolefin removal from FCC gasoline was simulated and analyzed using Aspen Plus software, and the influence of reflux ratio, H2/oil volume ratio, space velocity, reaction temperature and reaction pressure on the diolefin hydrogenation efficiency were investigated. Results showed that the diolefin removal rate of FCC gasoline increased with the increasing of reaction pressure, while increased with the decreasing of space velocity, reflux ratio, and H2/oil volume ratio. The results obtained could be useful for the operation condition optimization and process design of the hydrogenation-catalytic distillation for diolefin removal from FCC gasoline.

Key words: catalytic distillation, diolefin, hydrogenation, simulation