Electrochemical regeneration of oxygen­containing compounds in the extracts of used oils

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.123649

Keywords:

carboxylic acid electro-oxidation, electroreduction of aldehydes and ketones, regeneration, used oil

Abstract

Growth in the volumes of oils applied for various purposes, including motor oils, results in the formation of large quantities of toxic waste – used oils. At the same time, they are a valuable raw material for the production of fresh oils by their regeneration though existing techniques have a number of shortcomings, the main of which is the formation of new waste that is difficult to dispose of.

It is shown that the extraction of used oils by an alkaline aqueous-alcohol solution enables an almost complete removal of oxygen-containing compounds, as evidenced by the reduced acid number, from 1.76 mg KOH/g of oil to 0 mg KOH/g of oil. This results in a significant decrease in corrosion aggressiveness of the medium.

The results of research into electrochemical processes in model solutions of ketones, aldehydes and carboxylic acids revealed the possibility to transform their products on electrodes into non-toxic useful products – carbohydrate products.

The results of research into electrochemical processes in model solutions of oxygen-containing compounds and extracts of used oils at anodic potentials of 2.4 V demonstrated the possibility of their transformation on electrodes into useful carbohydrate products. This would contribute to an increase in the output of regenerated oil, prevents the formation of toxic waste.

Author Biographies

Oleksandr Davydenko, National Aviation University Kosmonavta Komarova ave., 1, Kyiv, Ukraine, 03058

Postgraduate student

Department of Chemistry and Chemical Technology

Volodymyr Ledovskykh, National Aviation University Kosmonavta Komarova ave., 1, Kyiv, Ukraine, 03058

Doctor of Chemical Sciences, Professor

Department of Chemistry and Chemical Technology

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Published

2018-02-15

How to Cite

Davydenko, O., & Ledovskykh, V. (2018). Electrochemical regeneration of oxygen­containing compounds in the extracts of used oils. Eastern-European Journal of Enterprise Technologies, 1(6 (91), 4–9. https://doi.org/10.15587/1729-4061.2018.123649

Issue

Vol. 1 No. 6 (91) (2018): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

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Copyright (c) 2018 Oleksandr Davydenko, Volodymyr Ledovskykh

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