Extractive Deep Desulfurization of Liquid Fuels Using Lewis-Based Ionic Liquids

Table 1

Extractive desulfurization of model liquid fuel (DBT in n-dodecane) using Lewis-acid-based ionic liquids.

Sr. no	Ionic liquid	Sulfur removal; (volume %)
1	[Bmim]Cl/FeCl3	75.6
2	[Omim]Cl/FeCl3	70.2
3	T8Cl/FeCl3	69.5
4	T4Cl/FeCl3	49.3
5	D10Cl/FeCl3	55.2
6	[Bmim]Cl/AlCl3	68.7
7	[Emim]Cl/AlCl3	60.1
8	[Bmim]Cl/ZnCl2	42.1
9	[Bmim]Cl/SnCl2	50.4
10	[Bmim]Cl/MnCl2	40.1
11	[Bmim]Cl/CoCl2	33.0

Mass ratio of model liquid fuels/ionic liquid = 5/1; extraction time = 30 min; temperature = 30°C; initial sulfur concentration = 500 ppm.