复合萃取剂选择性萃取脱硫研究

Study on Selective Extraction Desulfurization with Composite Extractant

摘要: 通过采用甲醇、95％乙醇、二甲基亚砜、乙二醇、N，N-二甲基甲酰胺和糠醛六种有机溶剂对氧化柴油进行萃取脱硫，评选出较优的柴油氧化脱硫专用萃取剂。实验发现：糠醛的萃取脱硫效果最好，脱硫率高；且糠醛与水以适当体积比混合，可以更加有效地萃取出含硫有机物，提高萃取脱硫的选择性，使脱硫率增加3．7％，萃取柴油收率提高3％。

Abstract: Oxidated diesel oil was desulfurized by organic solvent extraction with different extractant, e. g. methanol, ethanol, dimethyl sulfoxide, ethylene glycol, N, N - dimethyl formamide and furfural. Optimum desulfurization extractant was selected. Experiment