Gas-phase polymerization of propylene with a highly active catalyst.

J.J.C. Samson, Job Jan C. Samson, Bart van Middelkoop, B. van Middelkoop, G. Weickert, K.R. Westerterp

    Research output: Contribution to journalArticleAcademicpeer-review

    17 Citations (Scopus)

    Abstract

    The polymerization of propylene in the gas phase has been studied with the same high-activity catalyst as was used for liquid-phase polymerizations in earlier work. Catalyst injection, the influence of the support bed, and precontacting of the catalyst with the cocatalyst and the electron donor have been investigated. Furthermore, different ways of prepolymerization were tested. The kinetics can be described with the same model as was used for the liquid-phase polymerizations. The reaction rate was proportional to the pressure at pressures above 5 bar; at lower pressures the rates are lower. Comparison of the reaction rates in the gas phase and liquid phase showed the rates in the gas phase were still lower than in the liquid phase. The fast decay observed in the gas-phase polymerizations indicated that thermal runaway and deactivation may occur at temperatures above 40-45°C.
    Original languageUndefined
    Pages (from-to)1548-1558
    Number of pages11
    JournalAIChE journal
    Volume45
    Issue number7
    DOIs
    Publication statusPublished - 1999

    Keywords

    • METIS-106238
    • IR-71360

    Cite this

    Samson, J. J. C., Samson, J. J. C., van Middelkoop, B., van Middelkoop, B., Weickert, G., & Westerterp, K. R. (1999). Gas-phase polymerization of propylene with a highly active catalyst. AIChE journal, 45(7), 1548-1558. https://doi.org/10.1002/aic.690450716
    Samson, J.J.C. ; Samson, Job Jan C. ; van Middelkoop, Bart ; van Middelkoop, B. ; Weickert, G. ; Westerterp, K.R. / Gas-phase polymerization of propylene with a highly active catalyst. In: AIChE journal. 1999 ; Vol. 45, No. 7. pp. 1548-1558.
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    title = "Gas-phase polymerization of propylene with a highly active catalyst.",
    abstract = "The polymerization of propylene in the gas phase has been studied with the same high-activity catalyst as was used for liquid-phase polymerizations in earlier work. Catalyst injection, the influence of the support bed, and precontacting of the catalyst with the cocatalyst and the electron donor have been investigated. Furthermore, different ways of prepolymerization were tested. The kinetics can be described with the same model as was used for the liquid-phase polymerizations. The reaction rate was proportional to the pressure at pressures above 5 bar; at lower pressures the rates are lower. Comparison of the reaction rates in the gas phase and liquid phase showed the rates in the gas phase were still lower than in the liquid phase. The fast decay observed in the gas-phase polymerizations indicated that thermal runaway and deactivation may occur at temperatures above 40-45°C.",
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    Samson, JJC, Samson, JJC, van Middelkoop, B, van Middelkoop, B, Weickert, G & Westerterp, KR 1999, 'Gas-phase polymerization of propylene with a highly active catalyst.' AIChE journal, vol. 45, no. 7, pp. 1548-1558. https://doi.org/10.1002/aic.690450716

    Gas-phase polymerization of propylene with a highly active catalyst. / Samson, J.J.C.; Samson, Job Jan C.; van Middelkoop, Bart; van Middelkoop, B.; Weickert, G.; Westerterp, K.R.

    In: AIChE journal, Vol. 45, No. 7, 1999, p. 1548-1558.

    Research output: Contribution to journalArticleAcademicpeer-review

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    T1 - Gas-phase polymerization of propylene with a highly active catalyst.

    AU - Samson, J.J.C.

    AU - Samson, Job Jan C.

    AU - van Middelkoop, Bart

    AU - van Middelkoop, B.

    AU - Weickert, G.

    AU - Westerterp, K.R.

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    AB - The polymerization of propylene in the gas phase has been studied with the same high-activity catalyst as was used for liquid-phase polymerizations in earlier work. Catalyst injection, the influence of the support bed, and precontacting of the catalyst with the cocatalyst and the electron donor have been investigated. Furthermore, different ways of prepolymerization were tested. The kinetics can be described with the same model as was used for the liquid-phase polymerizations. The reaction rate was proportional to the pressure at pressures above 5 bar; at lower pressures the rates are lower. Comparison of the reaction rates in the gas phase and liquid phase showed the rates in the gas phase were still lower than in the liquid phase. The fast decay observed in the gas-phase polymerizations indicated that thermal runaway and deactivation may occur at temperatures above 40-45°C.

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    KW - IR-71360

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    Samson JJC, Samson JJC, van Middelkoop B, van Middelkoop B, Weickert G, Westerterp KR. Gas-phase polymerization of propylene with a highly active catalyst. AIChE journal. 1999;45(7):1548-1558. https://doi.org/10.1002/aic.690450716