Industrial & Engineering Chemistry Research, Vol.49, No.8, 3980-3982, 2010
Feed-Stage Multiplicity in Multicomponent Distillation
Finding the optimum feed-stage location in distillation design usually is achieved by determining what location minimizes reboiler energy consumption. There is a minimum in a plot of energy versus feed stage in ideal distillation columns. However, in multicomponent systems, multiple steady states may occur as feed-stage location is varied. This note presents a numerical example of this phenomenon.