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The removal of acid compounds(naphthenates) from acidic oil with ionic liquids was systematically investigated. [BMIM]Br-AlCl_3 was used to investigate the effect on deacidification of oil.Experimental results showed that at a temperature of 323K with a molar ratio of AlCl_3 to[BMIM]Br-AlCl_3 of 0.2,and a mass ratio of IL to white oil of 4%,the deacidification rate could reach 75.9%.And a reaction time of 4 h was sufficient to achieve the goal.The study on reproducibility of catalytic performance of[BMIM]Br-AlCl_3 showed the possibility of using the ionic liquid in the continuous catalytic reaction.
The removal of acid compounds (naphthenates) from acidic oil with ionic liquids was systematically investigated. [BMIM] Br-AlCl 3 was used to investigate the effect on deacidification of oil. Experimental results showed that at a temperature of 323K with a molar ratio of AlCl 3 to [BMIM] Br-AlCl 3 of 0.2, and a mass ratio of IL to white oil of 4%, the deacidification rate could reach 75.9% .And a reaction time of 4 h was sufficient to achieve the goal. The study on reproducibility of catalytic performance of [BMIM] Br-AlCl_3 showed the possibility of using the ionic liquid in the continuous catalytic reaction.