CFD simulation of fluidized bed reactors for polyolefin production – A review

Khan, Mohammad Jakir Hossain; Hussain, Mohd Azlan; Mansourpour, Zahra; Mostoufi, Navid; Ghasem, Nayef; Abdullah, Ezzat Chan

doi:10.1016/j.jiec.2014.01.044

Cited by 106 publications

(42 citation statements)

References 239 publications

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“…The operation performance of FBRs mainly relies on polymerization reaction, polymer particle size distribution (PSD), and the operating parameters [5][6][7]. Ethylene polymerization directly determines the polymer particles flow state and the dynamic evolution of PE PSDs, and it also controls the key aspects of the process and product end-use properties [8].…”

Section: Introductionmentioning

confidence: 99%

“…The solid particle flow behaviors of FBRs have been extensively studied numerically and experimentally, and the solid phase is often supposed to be monodisperse or constant polydisperse PSD [7,[9][10][11][12][13][14][15][16][17][18][19][20]. Nevertheless, industrial scale FBRs contain solid particles with continuously varied PSD for the chemical reactions and particle kinetics (growth, aggregation and breakage).…”

Section: Introductionmentioning

confidence: 99%

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A CFD-PBM model considering ethylene polymerization for the flow behaviors and particle size distribution of polyethylene in a pilot-plant fluidized bed reactor

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A CFD-PBM model considering ethylene polymerization for the flow behaviors and particle size distribution of polyethylene in a pilot-plant fluidized bed reactor

et al. 2015

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“…Several different CFD models have been developed for fluidized bed reactors for olefin polymerization [3]. Early work that applied CFD-DEM to study heat transfer in a gas phase polymerization process was mainly focused on hot-spot formation [4], taking both propylene and ethylene as monomer gas.…”

Section: Introductionmentioning

confidence: 99%

Experimental and simulation study of heat transfer in fluidized beds with heat production

Janssen

Buist

et al. 2017

Chemical Engineering Journal

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h i g h l i g h t sHeat production in a fluidized bed by CO 2 adsorption on Zeolite 13X. Combined infrared/visual camera (PIV-DIA-IR) technique for studying heat transfer. Extensive validation though a combined CFD-DEM model. Key aspects of adsorption process studied with TGA and STA. a r t i c l e i n f o b s t r a c tAs a result of highly exothermic reactions during gas-phase olefin polymerization in fluidized bed reactors, difficulties with respect to the heat management play an important role in the optimization of these reactors. To obtain a better understanding of the particle temperature distribution in fluidized beds, a high speed infrared (IR) camera and a visual camera have been coupled to capture the hydrodynamic and thermal behavior of a pseudo-2D fluidized bed. The experimental data were subsequently used to validate an in-house developed computational fluid dynamics and discrete element model (CFD-DEM). In order to mimic the heat effect due to the exothermic polymerization reaction, a model system was used. In this model system, heat is released in zeolite 13X particles (1.8-2.0 mm, Geldart D type) due to the adsorption of CO 2 . All key aspects of the adsorption process (kinetics, equilibrium and heat effect) were studied separately using Thermogravimetric Analysis (TGA) and Simultaneous Thermal Analysis (STA), and subsequently fluidized bed experiments were conducted, by feeding gas mixtures of CO 2 and N 2 with different CO 2 concentrations to the bed, where the total heat of liberation could be controlled. The combined infrared/visual camera technique generated detailed information on the thermal behavior of the bed. Furthermore, the comparison of the spatial and temporal distributions of the particle temperature measured in the fluidized bed with the simulation results of CFD-DEM provides qualitative and quantitative validation of the CFD-DEM, in particular concerning the thermal aspects.

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“…Fluent is one of the most inclusive software offered to the CFD community because of its wide range of industrial applications [31] and it is among the most widely employed software to perform gas-solid fluidized bed simulations. CFX was also used by a number of researchers [32,33] to model the fluidized bed dynamics.…”

Section: Introductionmentioning

confidence: 99%

Gas permeation effect on the Two-Section Two-Zone Fluidized Bed Membrane Reactor (TS-TZFBMR) fluid dynamics: A CFD simulation study

Julián

Herguido

Menéndez

2016

Chemical Engineering Journal

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CFD simulation of fluidized bed reactors for polyolefin production – A review

Cited by 106 publications

References 239 publications

A CFD-PBM model considering ethylene polymerization for the flow behaviors and particle size distribution of polyethylene in a pilot-plant fluidized bed reactor

A CFD-PBM model considering ethylene polymerization for the flow behaviors and particle size distribution of polyethylene in a pilot-plant fluidized bed reactor

Experimental and simulation study of heat transfer in fluidized beds with heat production

Gas permeation effect on the Two-Section Two-Zone Fluidized Bed Membrane Reactor (TS-TZFBMR) fluid dynamics: A CFD simulation study

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