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Research progress of deep eutectic solvents in fuel desulfurization
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DOI：10.1515/gps-2025-0069.png)
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Abstract
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With the increasing environmental issues caused by sulfur compound emissions from fossil fuels, the development of green and efficient desulfurization technologies has become a research hotspot. Deep eutectic solvents (DESs), as emerging low-cost, customizable green solvents, show great potential in fuel desulfurization. This article provides an in-depth analysis of the desulfurization mechanism of DESs, including hydrogen bonding, enhanced pi-pi and CH-pi interactions, and synergistic effects of metal ions 12. In addition, oxidation-extraction coupling strategies and process enhancement techniques such as ultrasonic-assisted extraction and microchannel mass transfer further improve desulfurization efficiency. In addition, oxidation-extraction coupling strategies and process enhancement techniques (such as ultrasonic-assisted extraction and microchannel mass transfer) further improve desulfurization efficiency. Overall, DES has broad application prospects in fuel extraction desulfurization and is expected to serve as an alternative or complementary method to hydrodesulfurization technology.
Keywords:
deep eutectic solvent
extraction desulfurization
hydrogen bond donor
hydrogen bond acceptors
green solvents
hydrogen-bonding
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