Monitoring of emulsion polymerisations: A study of reaction kinetics in the presence of secondary nucleation

Abstract : A non-linear state estimator that provides on-line information on residual monomer concentration and radical concentration is experiementally validated under dynamic conditions, and in particular in the presence of secondary particle nucleation. The proposed estimator uses the heat of reaction as an input. Practical methods for determining the initial values of the parameters in the energy balance are also proposed and tested on laboratory and pliot scale installations. It is shown that this method provides a robust tool for the on-line monitoring of batch (with and without shot additions of monomer, surfactant and initiator) and semi-batch emulsion polymerisation reactors. The observer was shown to converge rapidly, even under conditions where the number of particles per liter of emulsion (Np) changed rapidly either due to addition of a second population of particles, or to massive renucleation of particles subsequent to the shot addition of monomer and surfactant.
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Article dans une revue
Canadian Journal of Chemical Engineering, Wiley, 2002, 80, pp.88-104
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https://hal.archives-ouvertes.fr/hal-00366385
Contributeur : Nida Sheibat-Othman <>
Soumis le : vendredi 6 mars 2009 - 16:52:32
Dernière modification le : jeudi 14 février 2019 - 13:54:03

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  • HAL Id : hal-00366385, version 1

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Nida Sheibat-Othman, Amilton M. Santos, Gilles Févotte, Timothy Mckenna. Monitoring of emulsion polymerisations: A study of reaction kinetics in the presence of secondary nucleation. Canadian Journal of Chemical Engineering, Wiley, 2002, 80, pp.88-104. 〈hal-00366385〉

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