Configurations of binary distillation column for optimal control

Choice of the control structure is a major concern and considerable research activity has been devoted to finding the best control configuration. In this work eight distillation control structures have been investigated by simulation based on models that are deduced using a software package for distillation column. These programs use transformations between the structures. The Dynamic Relative Magnitude Criterion, DRMC has been used to evaluate the interactions and disturbances propagation between the two interacting controlled loops of distillation column. Comparison between the results given by DRMC and those given by the Relative Gain Array, RGA has been also given in this work.