HAZOP study of a fixed bed reactor for MTBE synthesis using a dynamic approach |
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Authors: | Juraj Labovský Zuzana Švandová Jozef Markoš L’udovít Jelemenský |
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Institution: | (1) Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic |
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Abstract: | A methodology for hazard investigation based on the integration of a mathematical model approach into hazard and operability
analysis is presented. This approach is based on mathematical modelling of a process unit where both steady-state analysis,
including analysis of the steady states multiplicity and stability, and dynamic simulation are used. The dynamic simulation
serves for the investigation of consequences of failures of the main controlled parameters, i.e. inlet temperature, feed temperature
and feed composition. This simulation is also very useful for the determination of the influence of failure duration on the
reactor behaviour. On the other hand, the steady state simulation can predict the reactor behaviour in a wide range of failure
magnitude and determine the parametric zones, where shifting from one steady state to another one may occur. A fixed bed reactor
for methyl tertiary-butyl ether synthesis was chosen to identify potential hazard and operational problems of a real process.
Presented at the 34th International Conference of the Slovak Society of Chemical Engineering, Tatranské Matliare, 21–25 May
2007. |
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Keywords: | fixed-bed reactor safety analysis HAZOP mathematical modelling nonlinear dynamics |
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