文章摘要
乙酰胺基配位离子液体的合成及脱氮性能
Synthesis and Denitrogenation Performance of Acetamide-based Coordinated Ionic Liquid
投稿时间:2019-05-30  修订日期:2019-07-18
DOI:
中文关键词: 配位离子液体  乙酰胺  ZnCl2  脱氮  喹啉  吲哚
英文关键词: coordinated ionic liquid  acetamide  ZnCl2  denitrogenation  quinoline  indole
基金项目:
作者单位E-mail
刘洁 辽宁石油化工大学 lj13898309829@163.com 
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中文摘要:
      以乙酰胺和氯化锌为原料合成配位离子液体CH3CONH2-xZnCl2(x=0.3,0.4,0.5),采用红外光谱对其结构进行表征,并分别采用含有喹啉、吲哚的模型柴油考察其对油品中碱性氮化物和非碱性氮化物的脱除性能。结果表明CH3CONH2-0.3ZnCl2具有较好的脱氮性能,在萃取时间20min、沉降时间2h、萃取温度50℃、剂油质量比1:3的条件下,该离子液体对喹啉和吲哚的脱除率分别为96.8%和68.1%。进一步研究发现在该条件下,经过四步萃取后,吲哚模型油的累计脱氮率可达97.6%。配位离子液体CH3CONH2-0.3ZnCl2在回收利用5次后,喹啉脱除率仍可达到91.5%,具有较好的重复使用性能。
英文摘要:
      Inexpensive acetamide (CH3CONH2)-based ionic liquids were synthesized by coordinating CH3CONH2 with anhydrous ZnCl2 at a molar ratio of 1:0.3, 1:0.4, 1:0.5, and its structure was characterized with FT-IR spectroscopy. The removal performance for basic and non-basic nitrogen of the ILs from model diesel oil containing quinoline and indole was studied. Experiment results showed that IL CH3CONH2-0.3ZnCl2 exhibited a better denitrogenation performance, and the removal efficiencies of quinoline and indole were 96.8% and 68.1% at temperature of 50℃, 1:3 (w/w) IL: oil, extraction time of 20min and settling time of 2h, respectively. It was found by further study that indole removal efficiency can reach 97.6 % with the IL after 4-stage extraction. Moreover, the quinoline removal efficiency can still reach 91.5% during five recycles of the IL.
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