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The review deals with extraction refining of straight-run diesel fractions, atmospheric gasoil, gasoils from secondary oil refining processes (decelerated coking, visbreaking, catalytic cracking), and light and heavy vacuum gasoils to remove heteroatomic sulfur- and nitrogen-containing compounds, polycyclic arenes, and resins using selective organic solvents and extraction systems with a nonpolar solvent. Possible methods for extraction regeneration and extract application fields are considered.
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Gaile et al. (2019) studied this question.
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