Citation: WANG Hui, XIE Cong-xia, YU Shi-tao, LIU Fu-sheng. Removal of non-basic nitrogen in model oil with functionalized acidic ionic liquid[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(1): 55-60. shu

Removal of non-basic nitrogen in model oil with functionalized acidic ionic liquid

WANG Hui ^1,2 ,
XIE Cong-xia ³ ,
YU Shi-tao ^1,, ,
LIU Fu-sheng ¹

1.
1. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;

Corresponding author: YU Shi-tao,
Received Date: 15 July 2013
Available Online: 17 September 2013
Fund Project: 国家自然科学基金(21176129)。 (21176129)

A series of functionalized acidic ionic liquids (ILs) were synthesized and used to remove non-basic nitrogen (indole) in model oil. The results indicate that the anions have a significant impact on the denitrification efficiency; the denitrification rate of the ionic liquids with various anions increases with their acidity, i.e. it follows the order of HSO₄^- > CF₃COO^- > H₂PO₄^- > CH₃COO^-. The effects of IL/oil ratio, IL/H₂O ratio, settlement time, reaction temperature and time on the denitrification efficiency of (CH₃CH₂)₃ N (CH₂)₃SO₃H HSO₄ were well considered. The results showed that 99.12% indole nitrogen in the oil can be removed with (CH₃CH₂)₃N(CH₂)₃SO₃HHSO₄ under the optimum condition; furthermore, the IL exhibits high stability and its denitrification activity remains almost unchanged even after being reused for six times.
- functionalization,
- acidic ionic liquid,
- denitrification,
- non-basic nitrogen,
- indole
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