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Deviation propagation analysis along a cumene process by using dynamic simulations

Murillo, Carlos and Berdouzi, Fatine and Olivier, Nelly and Gabas, Nadine Deviation propagation analysis along a cumene process by using dynamic simulations. (2018) Computers & Chemical Engineering, 117. 331-350. ISSN 0098-1354

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Official URL: https://doi.org/10.1016/j.compchemeng.2018.06.010


The dynamic response of benzene alkylation process to a set of deviations is analyzed with Aspen Plus Dynamics. A quantitative risk assessment is developed through simulations of deviation scenarios. The process comprises a reactor and three distillation columns with a recycle stream. The simulation scenarios are determined according to lessons learnt from accidents. This study underlines the conditions that induce an overpressure or a flooding in a distillation column. Three scenarios are proposed: feed flowrate variations, coolant flowrate reduction and cooling of the reboiler steam. Thereafter, the results allow calculating a set of risk indexes related to flooding and overpressure phenomena. This study underlines the deviation propagation effects that can be expected in all the process equipment. Moreover, it represents a significant contribution to the definition of the process control strategy and the necessary safety barriers.

Item Type:Article
HAL Id:hal-01886696
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:03 Oct 2018 08:27

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