超声强化Fenton试剂对柴油靶物的催化氧化脱硫

Ultrasonic enhanced Fenton agent for desulfurization of diesel oil by catalytic oxidation method

超声强化Fenton试剂催化氧化法对柴油靶物二苯并噻吩(DBT)脱硫进行了研究。在反应温度为40℃,pH=2.1,Fe2+与H2O2质量比为0.08,超声频率为25 kHz的条件下于超声仪中进行反应。反应时间为10 min,超声功率为150 W时,其脱硫率达82.65%,与非超声条件下相比,其脱硫率提高了36%,超声作用对柴油靶物氧化脱硫具有明显的促进作用。

Ultrasonic enhanced Fenton agent is used for desulfurization of dibenzothiophene,a target for diesel oil,by catalytic oxidation method.The reaction is carried out under the following conditions：40℃ of reaction temperature,2.1 of pH,0.08 mass ratio of Fe^2＋ and H2O2 and 25 kHz of uhrasonic frequency.The desulfurization rate is increased by 36% when the reaction time and ultrasonic frequency are 10 minutes and 150 W,respectively,comparing with the samples without ultrasonic treatment.It indicates that ultrasonic treatment obviously promotes the desulfurization of dibenzothiophene.