SYNTHESIS OF METAL-CONTAINING IONIC LIQUIDS FOR CLEANING PETROLEUM PRODUCTS

Abstract: imidazolium zinc-containing ionic liquids (IL), [1-R-3-R’-imidazolium] alkyl sulfate-ZnCl₂ (R and R ‘= H or alkyl), were very effective for removing nitrogen from a model fuel containing quinoline, indole, or acridine in n-heptane. The interaction of EtSO ₄ and ZnCl ₂ (EtSO ₄) with a heterocyclic N compound was studied theoretically. Zn-containing IL, [EMIm] ZnCl ₂ (EtSO 4) used to recover quinoline were successfully regenerated using diethyl ether as the back extractant.

Keywords: ionic liquids, denitrogenation, fuel, extraction, desulfurization