A review of recent developments on kinetics parameters for glycerol electrochemical conversion – A by-product of biodiesel

Rahim, S.A.N.M. and Lee, C.S. and Abnisa, F. and Aroua, M.K. and Daud, W.A.W. and Cognet, P. and Pérès, Y. (2020) A review of recent developments on kinetics parameters for glycerol electrochemical conversion – A by-product of biodiesel. Science of the Total Environment, 705: 135137. ISSN 0048-9697

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Glycerol is a by-product produced from biodiesel, fatty acid, soap and bioethanol industries. Today, the value of glycerol is decreasing in the global market due to glycerol surplus, which primarily resulted from the speedy expansion of biodiesel producers around the world. Numerous studies have proposed ways of managing and treating glycerol, as well as converting it into value-added compounds. The electrochemical conversion method is preferred for this transformation due to its simplicity and hence, it is discussed in detail. Additionally, the factors that could affect the process mechanisms and products distribution in the electrochemical process, including electrodes materials, pH of electrolyte, applied potential, current density, temperature and additives are also thoroughly explained. Value-added compounds that can be produced from the electrochemical conversion of glycerol include glyceraldehyde, dihydroxyacetone, glycolic acid, glyceric acid, lactic acid, 1,2-propanediol, 1,3-propanediol, tartronic acid and mesoxalic acid. These compounds are found to have broad applications in cosmetics, pharmaceutical, food and polymer industries are also described. This review will be devoted to a comprehensive overview of the current scenario in the glycerol electrochemical conversion, the factors affecting the mechanism pathways, reaction rates, product selectivity and yield. Possible outcomes obtained from the process and their benefits to the industries are discussed. The utilization of solid acid catalysts as additives for future studies is also suggested.

Item Type:
Journal Article
Journal or Publication Title:
Science of the Total Environment
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Export Date: 6 January 2020
Uncontrolled Keywords:
?? environmental chemistrypollutionenvironmental engineeringwaste management and disposal ??
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Deposited On:
22 Oct 2020 11:05
Last Modified:
28 May 2024 11:26