Improved dynamic model for an unsaturated polyester process by non-ideal thermodynamics

Conference Contribution

Shah, M.R., Zondervan, E. & Haan, de, A.B. (2010). Improved dynamic model for an unsaturated polyester process by non-ideal thermodynamics. Proceedings 21st International Symposium on Chemical Reaction Engineering (ISCRE-21), June 13-16, 2010, Philadelphia, PA, USA (pp. 76-1/2). Read more: Medialink/Full text

Abstract

 

An extended dynamic model is presented for a polyesterification reaction in a semi-batch wise operated vessel connected to a distillation column. The developed model describes the effect of polymerization on reactants. The model also contains kinetics describing the change of rate order during the reaction. To improve the predictive capabilities, the model has been extended with advanced thermodynamic POLYNRTL activities. The extended

model is subsequently validated with experimental data from literature. It was found that the prediction of distilled mass (regression coefficient (R2) = 0.995) and propylene glycol concentration (R2 = 0.97) in distilled mass is significantly improved.