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

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 Fe2 +and H2O2and 25 kHz of ultrasonic 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.