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Coupled Single‐Particle and Population Balance Modeling for Particle Size Distribution of Poly(propylene) Produced in Loop Reactors
Author(s) -
Luo ZhengHong,
Wen ShaoHua,
Shi DePan,
Zheng ZuWei
Publication year - 2010
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.200900040
Subject(s) - particle size , particle (ecology) , population balance equation , steady state (chemistry) , particle size distribution , mass transfer , population , materials science , heat transfer , mechanics , thermodynamics , chemistry , physics , oceanography , demography , sociology , geology
A comprehensive model was developed for the PSD of PP produced in loop reactors. The polymeric multilayer model (PMLM) was first applied to calculate the single particle growth rate under intraparticle transfer limitations. In order to obtain the comprehensive model, the PMLM was solved together with a steady‐state particle population equation to predict the PSD in the loop reactors. The simulated PSD data obtained under steady‐state polymerization conditions agreed with the actual data collected from industrial scale plant. The comprehensive model was also used to predict the effects of some critical factors, including the intraparticle mass and heat transfer limitations, the feed catalyst particle size and the catalyst deactivation, etc., on the PSD.