Macromolecular Symposia

Cover image for Vol. 372 Issue 1

November 11, 2010

SENSORS: In-Line Monitoring of Emulsion Polymerization Reactions Combining Heat Flow and Heat Balance Calorimetry

SENSORS: In-Line Monitoring of Emulsion Polymerization Reactions Combining Heat Flow and Heat Balance Calorimetry

Marcelo Esposito, Claudia Sayer, Pedro Henrique Hermes de Araújo*

In-line monitoring of semi-batch vinyl acetate emulsion polymerizations was performed combining heat flow and heat balance calorimetry to re-estimate the overall heat transfer coefficient between the reactor and jacket. The initial UARJ was obtained applying a constant power through an electrical heater to the initial reactor charge. As UARJ changed during the reaction, it was re-estimated combining the mass and energy balances of the jacket and the reactor and minimizing an objective function in terms of TJ_out. Results showed that good in-line estimations of conversion can be performed without requiring the use of experimental conversion data to re-estimate UARJ during the reaction.

Macromol. React. Eng. DOI: 10.1002/mren.201000026

Other contributions to the article series on sensors, process control and modeling in polymer production can be found here.

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