“…If parameters of the cost functions change, a re-optimisation is necessary. An alternative to an optimisation approach based on a single cost function is the use of multi-objective optimisation, which has gained more importance in chemical engineering over the last several years [12][13][14][15]. The advantage of the multiobjective optimisation is that a set of solutions called Pareto front can be found in which no improvement in one objective can be reached without decreasing the performance of another objective.…”