Ultrasound assisted oxidative desulfurization (UAOD) of simulated diesel containing dibenzothiophene (DBT) as a model sulfur compound has been investigated using ultrasonic flow cell (FC) and ultrasonic longitudinal bath operated individually and in combination with different oxidants. The influence of process parameters such as H₂O₂ loading (10 mL/L–40 mL/L), acetic acid (AA) loading (30 mL/L–90 mL/L), time (15 min–180 min), temperature (40 °C–70 °C), recirculation flow rate (45 mL/min– 85 mL/min) and potassium persulfate (KPS) loading (6 g/L to 14 g/L) on the progress of desulfurization has been studied using ultrasonic flow cell. Significant enhancement in the extent of desulfurization was observed with the use of optimum conditions and best approach for desulfurization of DBT was found to be FC + KPS + AA+H₂O₂ resulting in 100% desulfurization. A marginally better effect was demonstrated in a longitudinal bath at a working capacity of 4 L. The kinetic data revealed that the desulfurization process followed pseudo-first-order reaction kinetics. The thermodynamic parameters were also established for the desulfurization. Overall it was demonstrated that desulfurization was intensified using oxidants in combination with ultrasound and best results were shown at capacity of 4 L for the first time using a longitudinal bath.

使用单独的超声流通池（FC）和超声纵浴并与不同的氧化剂结合使用，研究了以二苯并噻吩（DBT）为模型硫化合物的模拟柴油的超声辅助氧化脱硫（UAOD）。H ₂ O ₂等工艺参数的影响装载量（10 mL / L–40 mL / L），乙酸（AA）装载量（30 mL / L–90 mL / L），时间（15分钟–180分钟），温度（40°C–70°C） ，使用超声流通池研究了再循环流量（45 mL / min– 85 mL / min）和过硫酸钾（KPS）负荷（6 g / L至14 g / L）对脱硫进程的影响。通过使用最佳条件，观察到脱硫程度的显着提高，发现DBT脱硫的最佳方法是FC + KPS + AA + H ₂ O ₂导致100％脱硫。在工作容量为4 L的纵向浴中证明了略微更好的效果。动力学数据表明，脱硫过程遵循拟一级反应动力学。还建立了用于脱硫的热力学参数。总的来说，证明了结合使用氧化剂和超声波可增强脱硫效果，使用纵向浴首次以4 L的容量显示出最佳效果。