摘要
在超声波的作用下,用H2O2-CH3COOH-FeSO4体系将柴油中的含硫有机物(主要为苯并噻吩类)氧化成相应的砜,用N,N-二甲基甲酰胺(DMF)作萃取剂将砜从柴油中萃取除去。考察了剂油体积比、氧化剂的质量分数、反应时间、超声声强等因素对柴油脱硫的影响。实验结果表明,在H2O2和油的体积比为0.024,CH3COOH和H2O2的体积比为0.5,FeSO4和H2O2的质量比为0.2,声强为0.3 W/cm2,反应时间为10 min的条件下,可使柴油脱硫率达到88.3%,收率可达92%以上。
The sulfur- bearing organics （benzothiophene） in diesel oil was oxidized to corresponding sulfones using H2O2 - CH3COOH-FeSO4 systems via ultrasound, and then the oxidized organic sulfur compounds （sulfones） were extracted by N, Ndimethyl formamide. The influences of volume ratio of oxidant and oil, mass fraction of oxidant, reaction time and ultrasonic intensity were investigated on the desulfurization efficiency. Experimental results show that the removal efficiency of sulfur compounds is up to 88.396, and the recovery of product is above 92% via ultrasound in the following conditions： the volume ratio of H2O2 andoilis 0. 024, the volume ratio of CH3COOH to H2O2 is 0.5, the mass ratio of FeSO4 and H2O2 is 0.2, ultrasonic intensity is 0.3 W/cm^2 and the reaction time is 10 min.
出处
《辽宁石油化工大学学报》
CAS
2006年第3期31-33,37,共4页
Journal of Liaoning Petrochemical University
关键词
柴油
氧化脱硫
过氧化氢
超声波
Diesel
Oxidative desulfurization
Hydrogen peroxide
Ultrasound
