Faculty of Engineering, Pharos University in Alexandria, PO Box 37, Sidi Gaber, Alexandria, Egypt.
Egyptian Petroleum Research Institute (EPRI), PO 11727, Nasr City, Cairo, Egypt.
Environ Sci Pollut Res Int. 2024 Oct;31(50):60601-60618. doi: 10.1007/s11356-024-35043-6. Epub 2024 Oct 10.
In order to combat environmental pollution and the depletion of non-renewable fuels, feasible, eco-friendly, and sustainable biodiesel production from non-edible oil crops must be augmented. This study is the first to intensify biodiesel production from castor oil using a self-manufactured cylindrical stator-rotor hydrodynamic cavitation reactor. In order to model and optimize the biodiesel yield, a response surface methodology based on a 1/2 fraction-three-level face center composite design of three levels and five experimental factors was used. The predicted ideal operating parameters were found to be 52.51°C, 1164.8 rpm rotor speed, 27.43 min, 8.4:1 methanol-to-oil molar ratio, and 0.89% KOH concentration. That yielded 95.51% biodiesel with a 99% fatty acid methyl ester content. It recorded a relatively low energy consumption and high cavitation yield of 6.09 × 10 J and 12 × 10 g/J, respectively. The generated biodiesel and bio-/petro-diesel blends had good fuel qualities that were on par with global norms and commercially available Egyptian petro-diesel. The preliminary cost analysis assured the feasibility of the applied process.
为了应对环境污染和不可再生燃料的消耗，必须增加从非食用油脂作物生产可行、环保和可持续的生物柴油。本研究首次使用自制的圆柱形定子-转子流体动力空化反应器来强化从蓖麻油生产生物柴油。为了对生物柴油产量进行建模和优化，采用基于三水平五因素的 1/2 部分三水平面心复合设计的响应面法。预测的理想操作参数为 52.51°C、转子转速 1164.8 rpm、27.43 min、甲醇与油的摩尔比 8.4:1 和 KOH 浓度 0.89%。在此条件下，生物柴油的产率为 95.51%，脂肪酸甲酯含量为 99%。它的能量消耗相对较低，空化产率分别为 6.09×10 J 和 12×10 g/J。所生成的生物柴油和生物/石油柴油混合物具有良好的燃料质量，与全球标准和埃及商业石油柴油相当。初步的成本分析确保了所应用工艺的可行性。
