Heat Transfer in Gas Phase Olefin Polymerisation

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...

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Bibliographic Details
Published inMacromolecular symposia. Vol. 285; no. 1; pp. 58 - 63
Main Authors Tioni, Estevan, Broyer, Jean Pierre, Spitz, Roger, Monteil, Vincent, McKenna, Timothy F.L
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 01.10.2009
WILEY-VCH Verlag
WILEY‐VCH Verlag
Subjects
Catalysts
fixed bed
Gas phases
Heat transfer
Hot spots
Melting
nascent polymerization
olefin polymerization
Olefins
Polymerization
supported catalyst
Thermal properties
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Summary: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.
Bibliography:http://dx.doi.org/10.1002/masy.200951108
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ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200951108