Title: Generalized Criteria for Boundary Safe Conditions in Semi-Batch Processes: Simulated Analysis and Experimental Results.
Authors: ALOS M.a.NOMEN RosaSEMPERE JuliaSTROZZI FernandaZALDIVAR J.m.
Citation: Chemical Engineering and Processing vol. 37 p. 405-421
Publication Year: 1998
JRC N°: JRC16588
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC16588
Type: Articles in Journals
Abstract: In this work, the generalised parametric sensitivity criterion has been applied to isoperbolic - constant jacket temperature- semi-batch reactors (SBRs). The results show that the criterion discerns between non-ignition and thermal runaway regions. However, the optimal parametric regions for operating semibatch processes, called QFS (Quick onset, Fair conversion and Smooth temperature profile) cannot be distinguished from the runway regions, since both belong to the ignition behaviour. For this reason, a new intrinsic generalised criterion for characterising QFS regions, based on the earliest ignition time of the process, has been developed. The combination of both criteria allows theoretical results to be compared with those existing in literature. Finally, a catalysed esterification reaction is used to compare the simulated and experimental results carried out in a 2 L bench-scale laboratory reactor and in a 100 L pilot plant reactor. These criteria are believed to be of great utility for the termal stability analysis of isoperibolic SBRs. Furthermore, they can be easily extended to cope with the control system in case of isothermal SBRs.
JRC Institute:Joint Research Centre Historical Collection

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