Efficient removal of basic heterocyclic nitrogen compounds from fuel oils by functionalized acidic ionic liquids: Extraction experiment and interaction exploration.
In: Journal of Molecular Liquids, Jg. 386 (2023-09-15), S. N.PAG
Online
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Zugriff:
[Display omitted] • Two TMG-based acidic ILs were prepared for removing pyridine/quinoline. • The extraction mechanism was explored. • H-bond and acid-base coordination mechanisms were verified. It is a crucial procedure for eliminating nitrogen compounds from the fuel processing industry. Novel acidic ionic liquids (ILs) with functional groups can enhance the separation process, making it more effective and selective. In this study, two SO 3 H-functionalized tetramethylguanidine (TMG)-based ILs, namely [TMGPS]HSO 4 and [TMGPS]H 2 PO 4 , were utilized as extractants to eliminate two common basic heterocyclic nitrogen compounds, pyridine and quinoline, from fuel oils. [TMG]HSO 4 was used as a reference to examine and confirm the impact of functional sites on the removal of basic pyridine and quinoline. The extraction efficiency (EE) for the adopted ILs was measured, and their performance was analyzed. The results revealed that [TMGPS]HSO 4 had a higher EE value than [TMGPS]H 2 PO 4 under optimal conditions. Additionally, the EE values for pyridine and quinoline using [TMGPS]HSO 4 were 99.56 % and 94.36 %, respectively. The polarity relationship during the extraction process was also investigated. Furthermore, the hydrogen bond interaction and acid-base coordination of functionalized acidic ILs with basic pyridine and quinoline were validated. These findings demonstrate the successful development of functional ILs for efficiently eliminating typical heterocyclic base nitrogen compounds from fuel oils. [ABSTRACT FROM AUTHOR]
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Efficient removal of basic heterocyclic nitrogen compounds from fuel oils by functionalized acidic ionic liquids: Extraction experiment and interaction exploration.
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Autor/in / Beteiligte Person: | Ding, Chongyun ; Sun, Zhen ; Zhang, Lianzheng |
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Zeitschrift: | Journal of Molecular Liquids, Jg. 386 (2023-09-15), S. N.PAG |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 0167-7322 (print) |
DOI: | 10.1016/j.molliq.2023.122455 |
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