Reinaldo Rafael Marval Hernández - Academia.edu (original) (raw)
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Papers by Reinaldo Rafael Marval Hernández
Industrial & Engineering Chemistry Research, 1990
... J. Mol. Catal. 1989, 50, 259-275. Parshall, GW Homogeneous Catalysis; Wiley-Interscience: New... more ... J. Mol. Catal. 1989, 50, 259-275. Parshall, GW Homogeneous Catalysis; Wiley-Interscience: New York, 1980. Ramachandran, P. A,; Chaudhari, RV Three-Phase Catalytic Re-actors;Gordon and Breach: London, 1983. ... Oxidation Reinaldo A. Hernandez? ...
2017 21st International Conference on Process Control (PC), 2017
In this contribution, an efficient Real-time Optimization (RTO) scheme for the optimal operation ... more In this contribution, an efficient Real-time Optimization (RTO) scheme for the optimal operation of chemical processes under uncertainty is proposed. This work builds on two recently published iterative robust optimization methodologies: Modifier Adaptation with Quadratic Approximation (MAWQA) and Directional Modifier Adaptation (DMA) and proposes a unified framework where the benefits of both methods are combined. As a consequence, fast convergence to the true plant optimum is achieved despite the presence of plant-model mismatch. The methodology is illustrated by simulation studies of a novel transition metal complex catalyzed process.
Modifier adaptation with quadratic approximation (in short MAWQA) can adapt the operating conditi... more Modifier adaptation with quadratic approximation (in short MAWQA) can adapt the operating condition of a process to its economic optimum by combining the use of a theoretical process model and of the collected data during process operation. The efficiency of the MAWQA algorithm can be attributed to a well-designed mechanism which ensures the improvement of the economic performance by taking necessary explorative moves. This paper gives a detailed study of the mechanism of performing explorative moves during modifier adaptation with quadratic approximation. The necessity of the explorative moves is theoretically analyzed. Simulation results for the optimization of a hydroformylation process are used to illustrate the efficiency of the MAWQA algorithm over the finite difference based modifier adaptation algorithm.
Industrial & Engineering Chemistry Research, 1990
... J. Mol. Catal. 1989, 50, 259-275. Parshall, GW Homogeneous Catalysis; Wiley-Interscience: New... more ... J. Mol. Catal. 1989, 50, 259-275. Parshall, GW Homogeneous Catalysis; Wiley-Interscience: New York, 1980. Ramachandran, P. A,; Chaudhari, RV Three-Phase Catalytic Re-actors;Gordon and Breach: London, 1983. ... Oxidation Reinaldo A. Hernandez? ...
2017 21st International Conference on Process Control (PC), 2017
In this contribution, an efficient Real-time Optimization (RTO) scheme for the optimal operation ... more In this contribution, an efficient Real-time Optimization (RTO) scheme for the optimal operation of chemical processes under uncertainty is proposed. This work builds on two recently published iterative robust optimization methodologies: Modifier Adaptation with Quadratic Approximation (MAWQA) and Directional Modifier Adaptation (DMA) and proposes a unified framework where the benefits of both methods are combined. As a consequence, fast convergence to the true plant optimum is achieved despite the presence of plant-model mismatch. The methodology is illustrated by simulation studies of a novel transition metal complex catalyzed process.
Modifier adaptation with quadratic approximation (in short MAWQA) can adapt the operating conditi... more Modifier adaptation with quadratic approximation (in short MAWQA) can adapt the operating condition of a process to its economic optimum by combining the use of a theoretical process model and of the collected data during process operation. The efficiency of the MAWQA algorithm can be attributed to a well-designed mechanism which ensures the improvement of the economic performance by taking necessary explorative moves. This paper gives a detailed study of the mechanism of performing explorative moves during modifier adaptation with quadratic approximation. The necessity of the explorative moves is theoretically analyzed. Simulation results for the optimization of a hydroformylation process are used to illustrate the efficiency of the MAWQA algorithm over the finite difference based modifier adaptation algorithm.