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首页> 外文期刊>International Journal of Industrial Chemistry >Assessment of the desulfurization of FCC vacuum gasoil and light cycle oil using ionic liquid 1-butyl-3-methylimidazolium octylsulfate
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Assessment of the desulfurization of FCC vacuum gasoil and light cycle oil using ionic liquid 1-butyl-3-methylimidazolium octylsulfate

机译：离子液体1-丁基-3-甲基咪唑鎓辛基硫酸盐对FCC真空瓦斯油和轻循环油脱硫的评估

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摘要

Increasingly stringent fuel sulfur content requirements/legislations have resulted in intensive quest for alternative desulfurization technologies that will ensure the treatment of fuels to acceptable sulfur levels. In this regard, the extraction of sulfur compounds from gasoline and diesel oil by ionic liquids (ILs) may represent a green alternative to common hydrodesulfurization for deep desulfurization (<10?ppm sulfur). This paper investigates the extraction efficiency as well as the regeneration of the IL, 1-butyl-3-methylimidazolium octylsulfate ([BMIM][OcSO~(4)]) for the desulfurization of the fluid catalytic cracking diesel fuels. The IL was found to be effective in the selective removal of sulfur from FCC light cycle oil than from the FCC vacuum gasoil stream, achieving 96 and 22.1% sulfur removals, respectively. These results suggest that fuel sulfur content and stream composition affects the extraction efficiency and effectiveness of IL. In addition to the fundamental experiments with FCC diesel fuels, the regeneration of sulfur loaded ILs was studied and a preliminary strategy for the integration of an IL-extraction process into an existing refinery structure is briefly discussed. Regenerated [BMIM][OcSO~(4)] IL was used for desulfurization of diesel and achieved highest sulfur removal of 95%. The IL was regenerated up to four times without appreciable decrease in efficiency. The results obtained herein show that ILs may be effective in the desulfurization of real diesel oils.
机译：越来越严格的燃料硫含量要求/法规导致人们强烈寻求替代脱硫技术，以确保将燃料处理至可接受的硫水平。在这方面，通过离子液体（IL）从汽油和柴油中提取硫化合物可能代表了深脱硫（<10 ppm ppm）的常规加氢脱硫的绿色替代方案。本文研究了用于流化催化裂化柴油燃料脱硫的IL，1-丁基-3-甲基咪唑鎓辛基硫酸盐（[BMIM] [OcSO〜（4）]）的提取效率和再生。发现IL比从FCC真空粗柴油流中选择性除去FCC轻循环油更有效，分别实现了96％和22.1％的硫去除率。这些结果表明，燃料硫含量和料流组成会影响白介素的提取效率和有效性。除了使用FCC柴油的基础实验之外，还研究了含硫ILs的再生，并简要讨论了将IL萃取过程整合到现有炼油厂结构中的初步策略。再生的[BMIM] [OcSO〜（4）] IL用于柴油脱硫，脱硫率最高，达到95％。 IL再生最多四次，效率没有明显下降。本文获得的结果表明，ILs可能对真正的柴油脱硫有效。

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