Abstract Renewable biodiesel with a high content of n-C17 alkanes was prepared through the catalytic hydrodeoxygenation of oleic acid under optimum conditions of temperature, reaction time and weight percentage of Ni deposited in γ-Al2O3. The hydrotreated vegetable oil (HVO) was blended with petrodiesel (20 % and 40 % of HVO) to evaluate its behaviour in a diesel engine. Comparative studies of power and emission of atmospheric pollutants such as NOx, CO, HC and smoke were evaluated under prepared blends and petrodiesel. The presence of HVO biodiesel at full load generated a slight decrease in power compared to petrodiesel; however, the decrease in emission of pollutants when using the blends containing HVO was significant. In the case of 40 % HVO were able to reduce more of 20 % of CO and HC emissions, and more than 40 % reduction in smoke when compared with petrodiesel. The NOx emissions of the blends with HVO had a significant slightly decrease. Further, the properties of Ni/γ-Al2O3 catalysts are justified by the results of EDS characterization, surface area (SBET), XRD, XPS, HR-TEM and it’s capacity to produce biodiesel.

中文翻译：

---

Ni/γ-Al2O3 纳米颗粒在油酸加氢脱氧中获得的生物燃料在柴油发动机中的受控评价

摘要 在最佳温度、反应时间和沉积在γ-Al2O3中的Ni的重量百分比条件下，通过油酸催化加氢脱氧制备高n-C17烷烃含量的可再生生物柴油。将加氢处理植物油 (HVO) 与石油柴油（20% 和 40% 的 HVO）混合，以评估其在柴油发动机中的性能。在制备的混合物和石油柴油下，对大气污染物（如 NOx、CO、HC 和烟雾）的功率和排放进行了比较研究。与石油柴油相比，满负荷时 HVO 生物柴油的存在会导致功率略有下降；然而，当使用含有 HVO 的混合物时，污染物排放量的减少是显着的。在 40% HVO 的情况下，能够减少超过 20% 的 CO 和 HC 排放，与石油柴油相比，烟雾减少 40% 以上。含有 HVO 的混合物的 NOx 排放量显着略有下降。此外，Ni/γ-Al2O3 催化剂的性能通过 EDS 表征、表面积 (SBET)、XRD、XPS、HR-TEM 及其生产生物柴油的能力得到证明。