首页 | 本学科首页   官方微博 | 高级检索  
     


Parameter Selection and Estimation Techniques in a Styrene Polymerization Model
Authors:John D. Woloszyn  Pascal Hesse  Klaus‐Dieter Hungenberg  Kimberley B. McAuley
Affiliation:1. Department of Chemical Engineering, Queen's University, Kingston, Ontario, K7L 3N6 Canada;2. Department of Polymer Reaction Engineering, BASF, Ludwigshafen, Rheinland‐Pfalz, 67063 Germany
Abstract:Styrene polymerization literature is reviewed and a model with dicumyl peroxide and benzoyl peroxide initiators is developed. Nine parameters are selected for estimation using statistical methods that account for the influence of parameters on model predictions, correlated effects of parameters and uncertainties of initial literature values. Updated parameters result in improved fits to conversion and molecular weight data from three research groups, reducing the least‐squares objective function by 73%. Use of industrial data from 19 batch reactor runs increases the number of estimable parameters to 16. Good predictions are obtained for validation runs with temperature ramps using both initiators.
image

Keywords:diffusion  kinetics (polym.)  modelling  polymerization (general)  polystyrene (PS)
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号