The removal of acid compounds (naphthenates) from acidic oil with ionic liquids was systematically investigated. [BMIM]Br-AlCl3 was used to investigate the effect on deacidification of oil. Experimental results show...The removal of acid compounds (naphthenates) from acidic oil with ionic liquids was systematically investigated. [BMIM]Br-AlCl3 was used to investigate the effect on deacidification of oil. Experimental results showed that at a temperature of 323K with a molar ratio of AlCl3 to [BM1M]Br-AlCl3 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-AlCl3 showed the possibility of using the ionic liquid in the continuous catalytic reaction.展开更多
Using a three-stage hydrogenation process, high-quality 150 bright stock (150BS) was produced from light DAO (LDAO, light deasphalted oil), which was obtained from vacuum residue of heavy naphthenic crude oil of Zo...Using a three-stage hydrogenation process, high-quality 150 bright stock (150BS) was produced from light DAO (LDAO, light deasphalted oil), which was obtained from vacuum residue of heavy naphthenic crude oil of Zone No.9 in Xinjiang. The 150BS product, whose viscosity index is greater than 90, is colorless and has good viscosity-temperature characteristics. This product turns out to be an excellent blending component of high-grade engine oil. And with the 150BS as a feed, very high-viscosity white oil was also produced by a further hydrofining step to substantially reduce the amount of polyaromatics contained in the feed.展开更多
文摘The removal of acid compounds (naphthenates) from acidic oil with ionic liquids was systematically investigated. [BMIM]Br-AlCl3 was used to investigate the effect on deacidification of oil. Experimental results showed that at a temperature of 323K with a molar ratio of AlCl3 to [BM1M]Br-AlCl3 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-AlCl3 showed the possibility of using the ionic liquid in the continuous catalytic reaction.
文摘Using a three-stage hydrogenation process, high-quality 150 bright stock (150BS) was produced from light DAO (LDAO, light deasphalted oil), which was obtained from vacuum residue of heavy naphthenic crude oil of Zone No.9 in Xinjiang. The 150BS product, whose viscosity index is greater than 90, is colorless and has good viscosity-temperature characteristics. This product turns out to be an excellent blending component of high-grade engine oil. And with the 150BS as a feed, very high-viscosity white oil was also produced by a further hydrofining step to substantially reduce the amount of polyaromatics contained in the feed.