Systematic Methodology to Achieve Self-Optimizing TITO Control for a Dividing Wall Column

Resumen: A methodology to select a self-optimizing control structure for a dividing wall column (DWC) is evaluated, the proposed methodology uses reflux flow rate and reboiler heat input as manipulated variables to control temperature of different stages of the column. The selection of the multivariable control structure is based on the minimization of a cost function dependent on the amount of impurity in each product stream of the column. The design sequence of each control loop also reduces the interaction between the control loops.

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R.R. Díaz-Vásquez, F. Guerrero-Morán, G.R. Urrea-García, D. Cantú-Lozano & G. Luna-Solano. Systematic Methodology to Achieve Self-Optimizing TITO Control for a Dividing Wall Column. Memorias del Congreso Nacional de Control Automático, pp. 86-91, 2021.

Palabras clave

Algorithm, control structure, dividing wall column, cost function, distillation

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