Abstract
In this study, a control structure is designed for a 4-product dividing wall (Kaibel)
distillation column, based on the plant-wide control procedure by Skogestad [2000] . Unlike the
common approach, vapour split is considered as a degree of freedom. The exact local method is
used to find the best control variables as single measurements or combination of measurements.
distillation column, based on the plant-wide control procedure by Skogestad [2000] . Unlike the
common approach, vapour split is considered as a degree of freedom. The exact local method is
used to find the best control variables as single measurements or combination of measurements.