Abstract
A comparative simulation study was carried out using the improved well-mixed, constant bubble size and well mixed models. These fluidized bed reactor models, combined with comprehensive kinetics for propylene homo-polymerization in the presence of a multiple active site Ziegler-Natta catalyst. In the improved model, the effect of the presence of particles in the bubbles and the excess gas in the emulsion phase was taken into account to improve the quantitative understanding of the actual fluidized bed process. The superficial gas velocity and catalyst feed rate have a strong effect on the hydrodynamics and reaction rate, which results in a greater variation in the polymer production rate and reactor temperature. At typical operating conditions the improved well mixed and well mixed models were in good agreement. While the COO!ICU bubble size model was found to over-predict the emulsion phase temperature and underpredict propylene concentration.
| Original language | English |
|---|---|
| Title of host publication | ICBEE 2010 - 2010 2nd International Conference on Chemical, Biological and Environmental Engineering, Proceedings |
| Pages | 114-118 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | 2nd International Conference on Chemical, Biological and Environmental Engineering, ICBEE 2010 - Cairo, Egypt Duration: Nov 2 2010 → Nov 4 2010 |
Other
| Other | 2nd International Conference on Chemical, Biological and Environmental Engineering, ICBEE 2010 |
|---|---|
| Country | Egypt |
| City | Cairo |
| Period | 11/2/10 → 11/4/10 |
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Keywords
- Fluidized bed reactor
- Hydrodynamics
- Propylene polymerization
- Ziegler-Natta catalyst
ASJC Scopus subject areas
- Chemical Engineering(all)
- Environmental Engineering
Cite this
Different hydrodynamic model for gas-phase propylene polymemation in a catalytic fluidized bed reactor. / Shamiri, Ahmad; Hussain, Mohamed Azlan; Mjalli, Farouq Sabri; Mostoufi, Navid.
ICBEE 2010 - 2010 2nd International Conference on Chemical, Biological and Environmental Engineering, Proceedings. 2010. p. 114-118 5650450.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Different hydrodynamic model for gas-phase propylene polymemation in a catalytic fluidized bed reactor
AU - Shamiri, Ahmad
AU - Hussain, Mohamed Azlan
AU - Mjalli, Farouq Sabri
AU - Mostoufi, Navid
PY - 2010
Y1 - 2010
N2 - A comparative simulation study was carried out using the improved well-mixed, constant bubble size and well mixed models. These fluidized bed reactor models, combined with comprehensive kinetics for propylene homo-polymerization in the presence of a multiple active site Ziegler-Natta catalyst. In the improved model, the effect of the presence of particles in the bubbles and the excess gas in the emulsion phase was taken into account to improve the quantitative understanding of the actual fluidized bed process. The superficial gas velocity and catalyst feed rate have a strong effect on the hydrodynamics and reaction rate, which results in a greater variation in the polymer production rate and reactor temperature. At typical operating conditions the improved well mixed and well mixed models were in good agreement. While the COO!ICU bubble size model was found to over-predict the emulsion phase temperature and underpredict propylene concentration.
AB - A comparative simulation study was carried out using the improved well-mixed, constant bubble size and well mixed models. These fluidized bed reactor models, combined with comprehensive kinetics for propylene homo-polymerization in the presence of a multiple active site Ziegler-Natta catalyst. In the improved model, the effect of the presence of particles in the bubbles and the excess gas in the emulsion phase was taken into account to improve the quantitative understanding of the actual fluidized bed process. The superficial gas velocity and catalyst feed rate have a strong effect on the hydrodynamics and reaction rate, which results in a greater variation in the polymer production rate and reactor temperature. At typical operating conditions the improved well mixed and well mixed models were in good agreement. While the COO!ICU bubble size model was found to over-predict the emulsion phase temperature and underpredict propylene concentration.
KW - Fluidized bed reactor
KW - Hydrodynamics
KW - Propylene polymerization
KW - Ziegler-Natta catalyst
UR - http://www.scopus.com/inward/record.url?scp=78651418585&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78651418585&partnerID=8YFLogxK
U2 - 10.1109/ICBEE.2010.5650450
DO - 10.1109/ICBEE.2010.5650450
M3 - Conference contribution
AN - SCOPUS:78651418585
SN - 9781424487479
SP - 114
EP - 118
BT - ICBEE 2010 - 2010 2nd International Conference on Chemical, Biological and Environmental Engineering, Proceedings
ER -