基于吡啶鎓的离子液体对燃料油的氧化脱硫。

Oxidative desulfurization of fuel oil by pyridinium-based ionic liquids.

机构信息

School of Chemical Engineering, Tianjin University, Tianjin, China.

出版信息

Molecules. 2009 Oct 28;14(11):4351-7. doi: 10.3390/molecules14114351.

DOI:10.3390/molecules14114351

PMID:19924069

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6255257/

Abstract

In this work, an N-butyl-pyridinium-based ionic liquid [BPy]BF(4) was prepared. The effect of extraction desulfurization on model oil with thiophene and dibenzothiophene (DBT) was investigated. Ionic liquids and hydrogen peroxide (30%) were tested in extraction-oxidation desulfurization of model oil. The results show that the ionic liquid [BPy]BF(4) has a better desulfurization effect. The best technological conditions are: V(IL)/V(Oil) /V(H(2)O(2)) = 1:1:0.4, temperature 55 degrees C, the time 30 min. The ratio of desulfurization to thiophene and DBT reached 78.5% and 84.3% respectively, which is much higher than extraction desulfurization with simple ionic liquids. Under these conditions, the effect of desulfurization on gasoline was also investigated. The used ionic liquids can be recycled up to four times after regeneration.

摘要

在这项工作中，制备了一种基于 N-丁基吡啶的离子液体 [BPy]BF(4)。考察了该离子液体对噻吩和二苯并噻吩（DBT）模型油的萃取脱硫效果。分别考察了离子液体和过氧化氢（30%）对模型油萃取氧化脱硫的影响。结果表明，离子液体 [BPy]BF(4) 具有更好的脱硫效果。最佳工艺条件为：V(IL)/V(Oil)/V(H(2)O(2))=1:1:0.4，温度 55℃，时间 30min。脱硫对噻吩和 DBT 的脱除率分别达到 78.5%和 84.3%，明显高于单纯离子液体的萃取脱硫。在这些条件下，还考察了脱硫对汽油的影响。用过的离子液体经再生后可重复使用 4 次。