The principal problem for chemical reactors carrying out exothermic reactions is the loss of temperature control. If the rate of heat generation by chemical reaction exceeds the rate of heat removal by cooling system a runaway reaction may occur. In this work an Early Warning Detection System (EWDS) has been tested. This device, based on the calculation of the divergence of the chemical conversion and reactor heat balance from temperature measurements, allows the detection of anomalous thermal events and the production of alarm signals. The reaction studied is the emulsion polymerization of acrylic monomers. In all the experiments the performance of the new device has been satisfactory.
Application of an Early Warning Detection System to batch and semi-batch polymerization processes
AMPELLI, Claudio;DI BELLA, debora;LISTER, David George;MASCHIO, Giuseppe;
2004-01-01
Abstract
The principal problem for chemical reactors carrying out exothermic reactions is the loss of temperature control. If the rate of heat generation by chemical reaction exceeds the rate of heat removal by cooling system a runaway reaction may occur. In this work an Early Warning Detection System (EWDS) has been tested. This device, based on the calculation of the divergence of the chemical conversion and reactor heat balance from temperature measurements, allows the detection of anomalous thermal events and the production of alarm signals. The reaction studied is the emulsion polymerization of acrylic monomers. In all the experiments the performance of the new device has been satisfactory.Pubblicazioni consigliate
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