RT info:eu-repo/semantics/article
T1 Real-time reconciled simulation as decision support tool for process operation
A1 Galán, Aníbal
A1 de Prada, César
A1 Gutiérrez, Gloria
A1 Sarabia, Daniel
A1 González, Rafael
K1 Real-time reconciled simulation Process change of condition Refinery hydrogen networks Operation decision support MHE
AB Decision support tools in the process industry have been gaining relevance, especially for operationunder uncertain conditions. This study describes real-time reconciled simulation (RTRS), and analyzesits usefulness as decision-making tool for process operators, especially under unexpected processchanges. The proposed methodology is implemented in two case studies in the context of an oilrefinery hydrogen network, where both plant and network levels are considered. A what-if analysisis conducted on two case studies, assessing two feasible mitigation actions for each case baselinecondition. The focus of the discussion is, nevertheless, on the methodology itself and its generalfeatures as decision support tool. The relative error of RTRS for estimation of states and parameters,considering unmeasured disturbances, is satisfactory aligned with industrial standards for onlinemeasurements. In terms of mitigation actions, these are assessed with regards to its economic impacton the system in question. It is shown how actions at plant level may be disadvantageous when facinghydrogen demand changes, compared to network-wide mitigation actions. At plant level, it is pointedout the importance of purification units, prevailing over hydrogen make-up for mitigation of demandchange. It is highlighted the fact that RTRS complements in a straightforward manner other controloperation tools such as model predictive controllers (MPC) and real-time optimizers (RTO). Therefore,it may add to any decision support framework an open-loop component with parameter estimationand forecasting capabilities. Moreover, its potential for training and integration within other toolspackages is discussed. Future directions of research are commented such as fully integrated decisionsupport frameworks, including RTRS, MPC and RTO. Additionally, how RTRS may relate to digitaltwins, including an example of a suitable architecture is introduced, and RTRS role in enterprise-widedecision-making solutions is commented.
PB Elsevier
SN 0168-3659
YR 2021
FD 2021-03-18
LK https://uvadoc.uva.es/handle/10324/65050
UL https://uvadoc.uva.es/handle/10324/65050
LA eng
NO Journal of Process Control, Marzo 2020, vol. 100, p. 41-64
NO Producción Científica
DS UVaDOC
RD 11-jul-2024