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Video Microscopy: An Innovative Tool to Visualize the Kinetics of Gas-Phase Olefine Polymerization with Heterogeneous Catalysts

Published online by Cambridge University Press:  02 July 2020

B. Tesche ,
S. Knoke ,
F. Korber  and
G. Fink
B. Tesche
Affiliation:
Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr/, Germanyphone +49-0208-2260, fax +49-0208-2980, e-mail: link:href="[email protected]">[email protected]
S. Knoke
Affiliation:
Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr/, Germanyphone +49-0208-2260, fax +49-0208-2980, e-mail: link:href="[email protected]">[email protected]
F. Korber
Affiliation:
Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr/, Germanyphone +49-0208-2260, fax +49-0208-2980, e-mail: link:href="[email protected]">[email protected]
G. Fink
Affiliation:
Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr/, Germanyphone +49-0208-2260, fax +49-0208-2980, e-mail: link:href="[email protected]">[email protected]
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Abstract

Introduction

Conventional methods to determine polymerization kinetics rely on a measurement of the monomer consumption or on calorimetric measurements. All these methods are integral methods and they are not appropriate to determine the kinetic of individual catalyst particles. Reichert and coworkers have invented video microscopy as a tool that allows the direct determination of polymer growth in gas-phase butadiene polymerization with heterogeneous catalysts.

Results

We present the direct measurement of polymer growth in gas-phase propene polymerization under industrial process conditions by means of video microscopy.The key-element of our equipment is a window autoclave that allows working with pressures up to 150 bar in the temperature range of 0 °C to 120°C. to insure inert atmosphere the reaction chamber is heated under high vacuum conditions before it is loaded with catalyst in a glove box. The reaction temperature is controlled by means of a temperature fluid slope inside the autoclave wall. to start the polymerization monomer gas is introduced to the reactor. We use a black eloxed aluminum disk as support for the catalyst grains.

Type
Characterization of Catalysts (Organized by S. Bradley)
Information
Microscopy and Microanalysis , Volume 7 , Issue S2: Proceedings: Microscopy & Microanalysis 2001, Microscopy Society of America 59th Annual Meeting, Microbeam Analysis Society 35th Annual Meeting, Long Beach, California August 5-9, 2001 , August 2001 , pp. 1088 - 1089
Copyright
Copyright © Microscopy Society of America 2001

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References

references

1.Reichert, K.-H., Institut fur Technische Chemie; Sekr. TC 3; Technische Universität Berlin; Straße des 17. Juni 135; 10623 Berlin / GermanyGoogle Scholar
2.Fink, G., Steinmetz, B., Tesche, B., Przybyla, C., Zechlin, J., Acta Polym. 1997, 48, 392;Steinmetz, B., Przybyla, G., Zechlin, I., Fink, G., Tesche, B.; DECHEMA Monographs, 1998, Vol.: 34, 147-156; Fink, G., Steinmetz, B., Zechlin, J., Przybyla, C., Tesche, B.,Chem. Rev. 2000, 100, 1377-1390; Zechlin, J., Steinmetz, B., Tesche, B., Fink, G.; Macromol. Chem. Phys. 2000,201,515-524Google Scholar