Abstract
A method is proposed for production of environmentally friendly diesel fuel, including five-step countercurrent extraction of aromatic hydrocarbons from the hydrofined diesel fraction with dimethylformamide or dimethylacetamide containing 3-5 wt % H2O and pentane followed by regeneration of the extractants from the extract phase by azeotropic distillation. The process allows production of diesel fuel with the content of aromatic hydrocarbons below 10 wt %. Another product is a petroleum aromatic solvent like Nefras AR-150/330.
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Gaile, A.A., Zalishchevskii, G.D., Varshavskii, O.M. et al. Production of Environmentally Friendly Diesel Fuel and Petroleum Aromatic Solvents by Extraction Combined with Azeotropic Distillation. Russian Journal of Applied Chemistry 74, 864–869 (2001). https://doi.org/10.1023/A:1012777908969
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DOI: https://doi.org/10.1023/A:1012777908969