Research progress in extraction of aromatics from fuel oil
The improvement of the technology of extracting aromatics from fuel oil is a crucial measure to achieve the petrochemical industry's strategic goal,which is to"reduce oil products while increasing the production of chemical materials and special high-value products".The extractants and the chemical composition of feedstock for aromatics extraction are key factors in determining the efficiency of aromatics extraction.In terms of extractants,the research progress in single solvents,compound solvents,ionic liquids,and deep eutectic solvents in the field of aromatics extraction was elaborated.Compared with traditional extraction solvents,the development of efficient compound solvents is an effective approach to improve extraction efficiency.Regarding the chemical composition of feedstock for aromatics extraction,the research progress in aromatics extraction from various fuel oils was summarized,providing a theoretical basis for expanding the source of feedstock for aromatics extraction and realizing the strategic goal of the petrochemical industry.Based on the comprehensive analysis and discussion of these research results,the prospect of aromatics extraction technology in the refining and chemical industry was presented.
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