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A Non-Invasive Hydrodynamic Study of Gas-Solid Fluidised Bed of Linear Low Density Polyethylene

Authors

  • Loni van der Lee,

    1. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada, T2N 1N4
    2. Tomographic Imaging and Porous Media Laboratory, Calgary, AB, Canada
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  • Blake Chandrasekaran,

    1. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada, T2N 1N4
    2. Tomographic Imaging and Porous Media Laboratory, Calgary, AB, Canada
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  • Ian Hulme,

    1. MEG Worley, Calgary, AB 3.MEG Worley, Calgary, AB
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  • Apostolos Kantzas

    Corresponding author
    1. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada, T2N 1N4
    2. Tomographic Imaging and Porous Media Laboratory, Calgary, AB, Canada
    • Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada, T2N 1N4
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Abstract

There are several non-invasive techniques used to study the hydrodynamic characteristics of gas-solid fluidised bed reactors. In this study a two phase, gas-solid fluidised bed consisting of air and a linear low-density polyethylene (LLDPE) resin was examined. The polyethylene sample was composed of irregular, non-monosized particles ranging in size from 165 to 1500 µm. The experimental techniques used were digital fluoroscopy and pressure fluctuations. This study presents a comparison of the two-phase system experimental results and two-dimensional CFD simulation results. CFD packages FLUENT and MFIX were used.

Abstract

Plusieurs techniques non intrusives sont utilisées pour étudier les caractéristiques hydrodynamiques des réacteurs à lits fluidisés gaz-solides. Dans cette étude, un lit fluidisé gaz-solides biphasique composé d'air et d'une résine de polyéthylène de faible densité linéaire (LLDPE) a été examiné. L'échantillon de polyéthylène se compose de particules polydisperse irregulières dont les tailles varient entre 165 et 1500 µm. Les techniques expérimentales utilisées sont la fluoroscopie numérique et les fluctuations de pression. On présente dans cette étude une comparaison des résultats expérimentaux de systèmes biphasiques et les résultats d'une simulation en CFD bidimensionnelle. Les logiciels de CFD FLUENT et MFIX ont été utilisés.

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