TY - JOUR
T1 - Improved single phase modeling of propylene polymerization in a fluidized bed reactor
AU - Shamiri, Ahmad
AU - Hussain, Mohd Azlan
AU - Mjalli, Farouq Sabri
AU - Mostoufi, Navid
N1 - Funding Information:
The authors would like to thank the support of the Research Council of the University of Malaya under research grant (No. RG054/09AET ) and the Petroleum and Chemical Engineering Department at Sultan Qaboos University and the School of Chemical Engineering, College of Engineering, University of Tehran for their support to this research.
PY - 2012/1/10
Y1 - 2012/1/10
N2 - An improved model for the production of polypropylene in a gas phase fluidized bed reactor was developed. Comparative simulation studies were carried out using the well-mixed, constant bubble size and the improved models. The improved model showed different prediction characteristics of polymer production rate as well as heat and mass transfer behavior as compared to other published models. All the three models showed similar dynamic behavior at the startup conditions but the improved model predicted a narrower safe operation window. Furthermore, the safe ranges of variation of the main operating parameters such as catalyst feed rate and superficial gas velocity calculated by the improved and well mixed models are wider than that obtained by the constant bubble size model. The improved model predicts the monomer conversion per pass through the bed which varies from 0.28 to 5.57% within the practical ranges of superficial gas velocity and catalyst feed rate.
AB - An improved model for the production of polypropylene in a gas phase fluidized bed reactor was developed. Comparative simulation studies were carried out using the well-mixed, constant bubble size and the improved models. The improved model showed different prediction characteristics of polymer production rate as well as heat and mass transfer behavior as compared to other published models. All the three models showed similar dynamic behavior at the startup conditions but the improved model predicted a narrower safe operation window. Furthermore, the safe ranges of variation of the main operating parameters such as catalyst feed rate and superficial gas velocity calculated by the improved and well mixed models are wider than that obtained by the constant bubble size model. The improved model predicts the monomer conversion per pass through the bed which varies from 0.28 to 5.57% within the practical ranges of superficial gas velocity and catalyst feed rate.
KW - Fluidized bed reactor
KW - Mathematical modeling
KW - Polymerization
KW - Polypropylene
KW - Ziegler-Natta catalyst
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U2 - 10.1016/j.compchemeng.2011.07.015
DO - 10.1016/j.compchemeng.2011.07.015
M3 - Article
AN - SCOPUS:84855966246
SN - 0098-1354
VL - 36
SP - 35
EP - 47
JO - Computers and Chemical Engineering
JF - Computers and Chemical Engineering
IS - 1
ER -