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Open AccessArticle
Coal to Clean: Comparing Advanced Electrodes for Desulfurization and Copper Recovery
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Institute for Technology of Nuclear and Other Mineral Raw Materials, 11000 Belgrade, Serbia
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Department of Electrochemistry, Institute of Chemistry, Technology and Metallurgy, National Institute of Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
3
IME Process Metallurgy and Metal Recycling, RWTH Aachen University, 52072 Aachen, Germany
*
Authors to whom correspondence should be addressed.
Materials 2024, 17(19), 4790; https://doi.org/10.3390/ma17194790 (registering DOI)
Submission received: 29 August 2024
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Revised: 24 September 2024
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Accepted: 26 September 2024
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Published: 29 September 2024
Abstract
This study explores the electrochemical desulfurization of coal and the recovery of copper (Cu) using dimensionally stable anode (DSA) electrodes. Background: The research addresses the need for effective sulfur removal from coal to reduce emissions. Methods: Electrochemical desulfurization was conducted using DSA and graphite electrodes, evaluating parameters like activation energy, desulfurization rate, and energy consumption. Cyclic voltammetry and linear sweep voltammetry were used to study the electrochemical properties. Results: The DSA electrode demonstrated superior performance with higher desulfurization rates, lower activation energy, and better response to temperature increases compared to the graphite electrode. Optimal desulfurization was achieved at 50 °C with the DSA electrode, balancing efficiency and energy consumption. Copper recovery from the solution post-desulfurization was effective, with an 86.34% recovery rate at −0.15 V vs. (Ag|AgCl). The energy consumption for the Cu recovery was calculated to be 10.56 J, and the total cost for recovering 1 ton of Cu was approximately 781.20 €. Conclusions: The study highlights the advantages of DSA electrodes for efficient sulfur removal and metal recovery, promoting cleaner energy production and environmental sustainability. Future research should focus on optimizing electrochemical conditions and scaling up the process for industrial applications.
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MDPI and ACS Style
Pantović Spajić, K.R.; Pantović Pavlović, M.R.; Stopic, S.; Cvetković, V.S.; Petrović, N.M.; Marković, B.; Pavlović, M.M.
Coal to Clean: Comparing Advanced Electrodes for Desulfurization and Copper Recovery. Materials 2024, 17, 4790.
https://doi.org/10.3390/ma17194790
AMA Style
Pantović Spajić KR, Pantović Pavlović MR, Stopic S, Cvetković VS, Petrović NM, Marković B, Pavlović MM.
Coal to Clean: Comparing Advanced Electrodes for Desulfurization and Copper Recovery. Materials. 2024; 17(19):4790.
https://doi.org/10.3390/ma17194790
Chicago/Turabian Style
Pantović Spajić, Katarina R., Marijana R. Pantović Pavlović, Srecko Stopic, Vesna S. Cvetković, Nataša M. Petrović, Branislav Marković, and Miroslav M. Pavlović.
2024. "Coal to Clean: Comparing Advanced Electrodes for Desulfurization and Copper Recovery" Materials 17, no. 19: 4790.
https://doi.org/10.3390/ma17194790
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