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Abstract

In this work, the generalized parametric sensitivity criterion has been applied to isoperibolic - constant jacket temperature- semi-batch reactors (SBR). The results show that the criterion discerns between non-ignition and thermal runaway regions. However, the optimal parametric regions for operating semibatch processes, called quick onset, fair conversion and smooth temperature profile (QFS) cannot be distinguished from the runaway regions, since both belong to the ignition behaviour. For this reason, a new intrinsic generalized criterion for characterizing 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 catalyzed 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 use for the thermal stability analysis of isoperibolic SBRs. Furthermore, they can be easily extended to cope with the control system in case of isothermal SBRs.

Additional information

Authors: ALÓS M A, Universitat Ramon Llull, Departament d'Enginyeria Química, Barcelona (ES);NOMEN R, Universitat Ramon Llull, Departament d'Enginyeria Química, Barcelona (ES);SEMPERE J M, Universitat Ramon Llull, Departament d'Enginyeria Química, Barcelona (ES);STROZZI F, JRC Ispra (IT);ZALDÍVAR J M, JRC Ispra (IT);ALOS M A, Universitat Ramon Llull, Departament d'Enginyeria Quimica, Barcelona (ES)
Bibliographic Reference: Article: Chemical Engineering and Processing (1998)
Record Number: 199810905 / Last updated on: 1998-08-07
Category: PUBLICATION
Original language: en
Available languages: en