In
this work, we study a simultaneous process design and control
methodology using infinite horizon model predictive control (IHMPC).
The methodology is based on the change in market conditions caused
by the difference in the raw material and product prices. The economic
and dynamic objectives are integrated into a single structure in the
formulation of the optimization problem. The presented solution divides
the problem into three stages and the final problem is solved using
two strategies: goal attainment and quadratic cost. In the first two
stages, utopian designs are calculated by the isolated solution of
economic and dynamic problems. Finally, an integrated problem is solved
to achieve the utopian values calculated in the previous stages, in
order to produce simultaneously the plant with the best economic and
dynamic performance. The results demonstrate the advantages of the
methodology for process design, compared with the traditional sequential
methodology.
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