Biodiesel is among the solutions to substitute petroleum‐based fuel. However, the autoxidation ability of biodiesel, which results in degradation of the existing oxygen, has delayed its use on a global level. A potential solution to this problem is the addition of antioxidant additives. Palm oil methyl ester (POME) is the most popular biodiesel in Malaysia. Diesel 80% + POME 20% (B20) was added with two types of monophenolic antioxidant additives, which were butylated hydroxytoluene and butylated hydroxyanisole, at 1000 ppm and 1500 ppm concentrations, respectively, to examine their effects on combustion characteristics, engine performances and exhaust emissions. Hielscher UP400S ultrasonic emulsifier was used to prepare the fuel blends at 20% of the maximum stirring speed. Yanmar TF120M single‐cylinder diesel engine was employed at a constant speed of 1800 rpm with various engine loads. The results showed that B20 and antioxidant‐treated B20 produced a mean increase in brake specific fuel consumption of 8.33%–23.27% and reduced brake thermal efficiency by a mean that was 8.40%–24.95% greater than that of diesel fuel. Both antioxidants reduced nitrogen oxide emission by a mean of 12.92%–30.54%, compared to B20. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

中文翻译：

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混合POME生物柴油混合物中的单酚类抗氧化剂可减少NOx排放

生物柴油是替代石油基燃料的解决方案之一。但是，生物柴油的自氧化能力会导致现有氧气的降解，从而延迟了其在全球范围内的使用。解决此问题的潜在方法是添加抗氧化剂添加剂。棕榈油甲酯（POME）是马来西亚最受欢迎的生物柴油。向80％的柴油+ 20％的POME（B20）柴油中添加两种类型的单酚抗氧化剂，分别是浓度为1000 ppm和1500 ppm的丁基化羟基甲苯和丁基化羟基茴香醚，以检查它们对燃烧特性，发动机性能和排气的影响。排放。使用Hielscher UP400S超声乳化剂以最大搅拌速度的20％制备燃料混合物。洋马TF120M单缸柴油发动机在各种发动机负载下均以1800 rpm的恒定速度使用。结果表明，B20和经过抗氧化剂处理的B20可使制动器的比油耗平均增加8.33％–23.27％，并使制动器的热效率降低，平均比柴油燃料高8.40％–24.95％。与B20相比，两种抗氧化剂均能将氮氧化物的排放量平均降低12.92％–30.54％。©2019年化学工业协会和John Wiley＆Sons，Ltd. 与B20相比，为92％–30.54％。©2019年化学工业协会和John Wiley＆Sons，Ltd. 与B20相比，为92％–30.54％。©2019年化学工业协会和John Wiley＆Sons，Ltd.