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The removal of sulfur compounds(thiophene) from petroleum via extraction with ionic liquids was systematically studied.The ionic liquid[BMIM][PF_6]([BMIM]~+—1-butyl-3-methylimidazolium hexatiuorophosphate cation) was used to investigate its effect on thiophene removal.The test results showed that a higher temperature and a greater mass ratio of the ionic liquids versus the oil containing the sulfur compounds both helped to remove the thiophene from the feed oil.At a temperature of 60℃and an ionic liquid/feed oil mass ratio of 20%,the desulfurization rate could reach 52.39%, with the extraction time specified at 40 minutes.
The removal of sulfur compounds (thiophene) from petroleum via extraction with ionic liquids was systematically studied. The ionic liquid [BMIM] [PF_6] ([BMIM] ~ + -1-butyl-3-methylimidazolium hexatiuorophosphate cation) was used to investigate its effect on thiophene removal.The test results showed that a higher temperature and a greater mass ratio of the ionic liquids versus the oil containing the sulfur compounds both helped to remove the thiophene from the feed oil. At a temperature of 60 ° C and an ionic liquid / feed oil mass ratio of 20%, the desulfurization rate could reach 52.39%, with the extraction time specified at 40 minutes.