The desulfurization ability is relevant to the structure and size of cation and anion in ILs, and the influence of cation is more pronounced.

• 离子液体的萃取脱硫能力强弱与离子液体的咪唑环与有机硫的噻吩环之间的 络合强度有关，而烷基的供电子作用及其空间效应均能在不同程度上影响络合物的稳定性。