Multi-objective design of reactive distillation

Abstract

This work addresses the multi-objective design of complex reactive distillation columns. The concept of feasible regions is employed to investigate the use of internal reaction distribution, as well as superheated and subcooled feeds. We generate the Pareto surfaces relating the amount of reactive holdup, the number of stages and a cost indicator reflecting energy usage and column size. The most promising designs are identified and investigated further using rigorous simulations in Aspen Plus.