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Heat Transfer in Gas Phase Olefin Polymerisation

Authors

  • Estevan Tioni,

    1. Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
    2. Dutch Polymer Institute, PO Box 902, 5600 AX Eindhoven, The Netherlands
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  • Jean Pierre Broyer,

    1. Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
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  • Roger Spitz,

    1. Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
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  • Vincent Monteil,

    Corresponding author
    1. Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
    • Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France.
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  • Timothy F. L. McKenna

    Corresponding author
    1. Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
    2. Department of Chemical Engineering, Queen's University, Kingston, ON, Canada
    • Université de Lyon, Univ. Lyon 1, CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), LCPP team Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France.
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Abstract

A fixed bed microreactor has been used to study heat transfer during the initial transient state of gas phase olefin polymerization on a supported catalyst. It has been shown that heat transfer during this stage of the polymerisation is critical, and under conditions found commercially problems can arise with hot spots and polymer melting. It is proven how the thermal properties of the gas mixture flowing on the catalytic bed exert great influence on heat dissipation reducing the sudden increase in temperature by as much as a factor of 5. Flow rate and especially the process gas composition are the key factors in controlling the bed temperature.

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