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Author: search.filters.author.Kaddour, OmarSubject: search.filters.subject.Clean fuel

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    Process Parameters and Intensification Effects of a Microwave Exposure Applied for the Extractive Oxidation of Diesel: An Optimization Using Response Surface Methodology
    (Pleiades Publishing, 2024) Bedoud, Karim; Mesdour, Souad Hammadou née; Boufades, Djamila; Moussiden, Anissa; Benmabrouka, Hafsa; Hamada, Boudjema; Kaddour, Omar
    Extractive oxidation of diesel via microwave processing using sulfuric acid and two synthesized pyridinium- or methylpyridinium-based ionic liquids has been studied as a sustainable and clean technology. The Central Composite Design (CCD) representing one of the response surface methods was applied for the experimental design, mathematical modeling, optimization, and factor-influence study, which covered the 0.75–1.75 [CH2COOHmPy][HSO4]/[H2SO4] volumetric range, 40–80°C temperature range, and 120–300 s radiation exposure time. The developed model properly fitted experimental results, with a coefficient of determination (R2) equal to 0.9832 that indicated its accuracy. The highest predicted sulfur removal (93.338%) as well as a significant removal of nitrogen and aromatic compounds was obtained for [CH2COOHmPy][HSO4]/[H2SO4] = 1.57, T = 71.7°C, and exposure time equal to 208 s. Microwave-assisted extractive oxidation demonstrated a considerable potential as the energy-saving technology, which meets the future need for producing clean fuels with low content of heteroatoms and polyaromatic hydrocarbons.