Different hydrodynamic model for gas-phase propylene polymemation in a catalytic fluidized bed reactor

Ahmad Shamiri; Mohamed Azlan Hussain; Farouq Sabri Mjalli; Navid Mostoufi

doi:10.1109/ICBEE.2010.5650450

Different hydrodynamic model for gas-phase propylene polymemation in a catalytic fluidized bed reactor

Ahmad Shamiri^*, Mohamed Azlan Hussain, Farouq Sabri Mjalli, Navid Mostoufi

^*Corresponding author for this work

Petroleum and Chemical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

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	https://doi.org/10.1109/ICBEE.2010.5650450
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

Keywords

Fluidized bed reactor
Hydrodynamics
Propylene polymerization
Ziegler-Natta catalyst

ASJC Scopus subject areas

Chemical Engineering(all)
Environmental Engineering

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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

Shamiri, A, Hussain, MA, Mjalli, FS & Mostoufi, N 2010, Different hydrodynamic model for gas-phase propylene polymemation in a catalytic fluidized bed reactor. in ICBEE 2010 - 2010 2nd International Conference on Chemical, Biological and Environmental Engineering, Proceedings., 5650450, pp. 114-118, 2nd International Conference on Chemical, Biological and Environmental Engineering, ICBEE 2010, Cairo, Egypt, 11/2/10. https://doi.org/10.1109/ICBEE.2010.5650450

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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.",

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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.

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