摘要：An iron-based chloride imidazole ionic liquid (ICIL) 1- butyl-3-methylimidazolium tetrachloroferrate ([Bmim]FeCl4) is proposed for the desulfurization of hydrogen sulfide (H2S) in nonaqueous phase at high temperature ranged from room temperature to 453 K. The thermal stability of [Bmim]FeCl4 is characterized. The results show that [Bmim]FeCl4 possesses strong stability at a wide range of temperature up to 453 K. The desulfurization efficiency increases significantly as the reaction temperature rises. The gas flow rate and the concentration of H2S are also factors influencing the desulfurization efficiency. Meanwhile, H2S can be promptly oxidized into rhombic type sulfur which can be easily separated from the desulfurizer at experimental temperatures.
关键词：Hydrogen sulfide; iron-based chloride imidazole
ionic liquid; desulfurization; high temperature
