Desulfurization of gasoline by [C_{4, 6, 8}mim]Br/FeCl₃ ILs collaboration with CTAB

ABSTRACT

The sulfur compounds in gasoline will cause air pollution and acid rain. As the main component of the sulfide compounds in gasoline, dibenzothiophene (DBT) is is difficult to remove. To solve this problem, magnetic imidazole ionic liquids (MILs) with different carbon chain alkanes [C_{4, 6, 8}min]Br/FeCl₃ were developed to improve the extractive desulfurization performance. Furthermore, Cetyltrimethylammonium bromide (CTAB) was added, in combination with MILs to achieve a higher removal rate of DBT in gasoline. The results show that CTAB combined with MILs has a better removal effect on DBT. The mechanism of CTAB combined with MILs gasoline desulfurization was analyzed.

KEYWORDS:

• Surfactant
• CTAB
• dibenzothiophene
• desulfurization
• ionic liquids

Conflicts of interest

The authors declare no competing financial interest.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [21375117];Postgraduate Education Reform Project of Jiangsu Province [SJKY19_2199].