François, GrégoryBonvin, Dominique2012-05-012012-05-01201310.1016/B978-0-12-396524-0.00001-5https://infoscience.epfl.ch/handle/20.500.14299/79942This chapter presents recent developments in the field of process optimization. In the presence of uncertainty in the form of plant-model mismatch and process disturbances, the standard model-based optimization techniques might not achieve optimality for the real process or, worse, they might violate some of the process constraints. To avoid constraints violations, a potentially large amount of conservatism is generally introduced, thus leading to sub-optimal performance. Fortunately, process measurements can be used to reduce this sub-optimality, while guaranteeing satisfaction of process constraints. Measurement-based optimization schemes can be classified depending on the way measurements are used to compensate the effect of uncertainty. Three classes of measurement-based real-time optimization methods are discussed and compared. Finally, four representative application problems are presented and solved using some of the proposed real-time optimization schemes.Real-time OptimizationModel-based OptimizationMeasurement-based OptimizationModel AdequacyTwo-step ApproachModifier AdaptationSelf-Optimizing ApproachScale-upSolid Oxide Fuel CellGrade TransitionBatch Polymerizationtext::book/monograph::book part or chapter