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Received December 11, 2014
Accepted April 3, 2015
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Effect of additives on one-pot electrochemical conversion of enriched crude glycerol

1Fuels Research Center, Department of Chemical Technology, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand 2Center of Excellence on Petrochemical and Materials Technology (PETRO-MAT), Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
mali.h@chula.ac.th
Korean Journal of Chemical Engineering, December 2015, 32(12), 2412-2417(6), 10.1007/s11814-015-0066-2
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Abstract

One-pot electrochemical conversion of enriched crude glycerol to higher value compounds was performed in a simple electrochemical reactor under a galvanostatic condition at an initial pH of 1 with a platinum electrode. The effect of different concentrations of hydrogen peroxide (H2O2), sodium persulfate (Na2S2O8) and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), as oxidizing agents, on the glycerol conversion and on the product distribution and yields was explored. The presence of different additives affected the concerted reaction mechanism involving the oxidant on the electrode surface, resulting in the generation of different value-added products. In the absence of an oxidizing agent, the principal reaction products was glycidol, whereas in the presence of one of H2O2, Na2S2O8 and TEMPO the main product was glycidol, ethylene glycol and 1,3-dihydroxyacetone, respectively.

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