Control of the polymer molecular weight using near infrared spectroscopy

Abstract : Near Infrared spectroscopy is used to control a polymerization reactor in order to produce solution polymers with well-defined molecular weight. A model for the monitoring of both the average polymer molecular weight, and the concentration of monomer in the reactor is developed with the partial least-squares calibration technique applied to the NIR spectra.On the basis of a process model, a nonlinear input- output linearizing geometric approach is then applied to control the polymer molecular weight by manipulating the inlet flow rate of the monomer. The control strategy is then validated on-line during the solution polymerization of acrylic acid in an industrial pilot scale reactor.
Type de document :
Article dans une revue
AIChE Journal, Wiley, 2004, 50 (3), pp.654-664
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Contributeur : Nida Sheibat-Othman <>
Soumis le : vendredi 6 mars 2009 - 16:38:42
Dernière modification le : jeudi 14 février 2019 - 13:54:03


  • HAL Id : hal-00366381, version 1



Nida Sheibat-Othman, Dominique Peycelon, Jean-Bernard Egraz, Jean-Marc Suau, Gilles Fevotte. Control of the polymer molecular weight using near infrared spectroscopy. AIChE Journal, Wiley, 2004, 50 (3), pp.654-664. 〈hal-00366381〉



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