Among the effective solutions for the reduction of environmental pollution, the use of fuels with limited-sulphur content or bio-based fuel has been paid much attention due to their advantages. In this experimental work, the ultra-low-sulphur fuel (ULSD) was mixed with biodiesel extracted from Jatropha oil (JOB) after being processed with ultrasonic assistance. There were eight samples used for mixture preparation of ULSD and JOB based on the correlation of viscosity aiming to find the optimal mixing rate for ULSD and JOB. As a result, the stability of the ULSD–JOB emulsion reached 98.5% after 17 min of the ultrasonic treatment with a mixing rate of 50%(ULSD): 50%(JOB) in the case of a distance of ultrasound horn tip to the bottom of vessel of 90 mm. In addition, the similarity of spray characteristics, being penetration length and cone angle, for the ULSD–JOB emulsion compared to a type of diesel oil was reported. The ULSD–JOB emulsion produced by ultrasound delivered a fuel with the ultra-low-sulphur content and increased oxygen content. The above-mentioned emulsion has well satisfied the increasingly stricter requirements of IMO regulations, as well as meeting the recommendations of engine manufactures regarding the fuels used in marine diesel engines.

在减少环境污染的有效解决方案中，限硫燃料或生物基燃料的使用因其优势而备受关注。在这项实验工作中，超低硫燃料 (ULSD) 在超声波辅助处理后与从麻风树油 (JOB) 中提取的生物柴油混合。基于粘度的相关性，有 8 个样品用于 ULSD 和 JOB 的混合物制备，旨在找到 ULSD 和 JOB 的最佳混合速率。结果，在超声喇叭尖端到超声喇叭尖端的距离为50%（ULSD）：50%（JOB）的情况下，超声处理17分钟后，ULSD-JOB乳液的稳定性达到98.5%。容器底部 90 毫米。此外，喷雾特性的相似性，即穿透长度和锥角，据报道，与一种柴油相比，ULSD-JOB 乳液。超声波产生的 ULSD-JOB 乳液提供了一种超低硫含量和增加氧含量的燃料。上述乳液很好地满足了IMO法规日益严格的要求，同时也满足了发动机制造商对船用柴油发动机所用燃料的建议。