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  4. Supercritical Reaction Calorimetry: Versatile Tool for Measuring Heat Transfer Properties and Monitoring Chemical Reactions in Supercritical Fluids
 
research article

Supercritical Reaction Calorimetry: Versatile Tool for Measuring Heat Transfer Properties and Monitoring Chemical Reactions in Supercritical Fluids

Mantelis, Charalampos A.
•
Meyer, Thierry  
2008
Industrial & Engineering Chemistry Research

The heat flow reaction calorimetry technique was developed for reactions with supercrit. fluids and was applied to monitor the free-radical dispersion polymn. of Me methacrylate in supercrit. carbon dioxide (scCO2). The main math. equation for the calorimetric calcns. was modified to take into account the particularities linked to the supercrit. nature of the solvent. As a result, important heat transfer variables, such as the overall heat transfer coeff., can be measured at the actual reaction conditions. This information is later used to calc. the heat released by the reaction and thus monitor its evolution. The robustness and accuracy of the technique allowed also investigating the effects of several reaction parameters. Finally, the obtained data were used to illustrate the importance of pressure as far as the safety of the reaction is concerned.

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Type
research article
DOI
10.1021/ie0712030
Web of Science ID

WOS:000255871400007

Author(s)
Mantelis, Charalampos A.
Meyer, Thierry  
Date Issued

2008

Published in
Industrial & Engineering Chemistry Research
Volume

47

Issue

10

Start page

3372

End page

3379

Subjects

Polymerization (monitoring of free-radical dispersion polymn. of Me methacrylate in supercrit. carbon dioxide)

•

Calorimetry

•

Heat transfer

•

Reaction

•

Safety

•

Supercritical fluids (supercrit. reaction calorimetry for measuring heat transfer properties and monitoring chem. reactions in supercrit. fluids)

•

calorimetry heat transfer reaction supercrit fluid

•

polymn Me methacrylate supercrit carbon dioxide calorimetry

•

Supercritical

•

calorimetrie

•

fluids

Note

CAN 148:451878, 48-5, Unit Operations and Processes, Institute of Chemical Sciences and Engineering, Group of Chemical and Physical Safety,Ecole Polytechnique Federale de Lausanne,Lausanne,Switz., Journal, 0888-5885, written in English., 80-62-6 (Methyl methacrylate); 124-38-9 (Carbon dioxide) Role: PEP (Physical, engineering or chemical process), PROC (Process) (monitoring of free-radical dispersion polymn. of Me methacrylate in supercrit. carbon dioxide)

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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GSCP  
Available on Infoscience
February 9, 2009
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/34848
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