Edeleanu process

The Edeleanu process is a type of extraction process in the petroleum refining industry, whereby liquid sulfur dioxide is used to extract aromatics from kerosene.

[1] It is named after the Romanian chemist Lazăr Edeleanu.

The aromatic extract is then separated from SO2 through rectification and SO2 recirculation.

[2] By using a blend of sulfur dioxide and benzene, some improvement can be effected, more suitable solvents such as furfural, phenol and N-methyl-2-pyrrolidone are used.

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