Boosted selectivity towards glycerol carbonate using microwaves vs conventional heating for the catalytic transesterification of glycerol

Boosted selectivity towards glycerol carbonate using microwaves vs conventional heating for the... Several hydrocalumite-type materials and some of their calcined forms have been tested for the catalytic transesterification of glycerol towards glycerol carbonate under microwaves, and by conventional heating for comparison. Microwaves slightly increased conversion but greatly increased selectivity to glycerol carbonate for all catalysts while the selectivity to glycidol was similar. Glycerol conversion values were 63–95% in microwaves and 61–91% by conventional heating, while selectivity to glycerol carbonate values were 53–92% in microwaves and 30–80% by conventional heating. Interestingly, microwaves favored transesterification since the sum of the selectivity values to glycerol carbonate and glycidol was higher than when using conventional heating. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Clay Science Elsevier

Boosted selectivity towards glycerol carbonate using microwaves vs conventional heating for the catalytic transesterification of glycerol

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier B.V.
ISSN
0169-1317
eISSN
1872-9053
D.O.I.
10.1016/j.clay.2018.01.025
Publisher site
See Article on Publisher Site

Abstract

Several hydrocalumite-type materials and some of their calcined forms have been tested for the catalytic transesterification of glycerol towards glycerol carbonate under microwaves, and by conventional heating for comparison. Microwaves slightly increased conversion but greatly increased selectivity to glycerol carbonate for all catalysts while the selectivity to glycidol was similar. Glycerol conversion values were 63–95% in microwaves and 61–91% by conventional heating, while selectivity to glycerol carbonate values were 53–92% in microwaves and 30–80% by conventional heating. Interestingly, microwaves favored transesterification since the sum of the selectivity values to glycerol carbonate and glycidol was higher than when using conventional heating.

Journal

Applied Clay ScienceElsevier

Published: May 1, 2018

References

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