Sirindhorn International Institute of Technology, Thammasat University, Pathum Thani, Thailand.
Sirindhorn International Institute of Technology, Thammasat University, Pathum Thani, Thailand.
Bioresour Technol. 2018 Jan;248(Pt A):199-203. doi: 10.1016/j.biortech.2017.06.106. Epub 2017 Jun 23.
In this study, an inexpensive, environmental benign acid catalyst is prepared using coconut meal residue (CMR) and employed for biodiesel production from waste palm oil (WPO). The total acid density of the catalyst is found to be 3.8mmolg. The catalyst shows a unique amorphous structure with 1.33mg of surface area and 0.31cmg of mean pore volume. Successful activation is confirmed by Fourier transform infrared (FT-IR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The highest biodiesel yield of 92.7% was obtained from WPO in an open reflux system using the catalyst. Results show that biodiesel yield increases with increasing methanol:oil (molar ratio) and reaction time up to an optimum value. It is found that the catalyst can be reused for at least four cycles for >80% biodiesel yield. Fuel properties of the produced biodiesel meet international biodiesel standards.
在这项研究中，使用椰子饭残渣（CMR）制备了一种廉价、环境友好的酸性催化剂，并将其用于从废棕榈油（WPO）生产生物柴油。催化剂的总酸密度为 3.8mmol/g。该催化剂具有独特的无定形结构，比表面积为 1.33mg，平均孔径体积为 0.31cmg。傅里叶变换红外（FT-IR）光谱和 X 射线光电子能谱（XPS）证实了成功的活化。使用该催化剂，在敞开回流系统中，WPO 的生物柴油产率最高可达 92.7%。结果表明，生物柴油产率随甲醇与油（摩尔比）和反应时间的增加而增加，直至达到最佳值。发现该催化剂至少可重复使用四次，仍能获得>80%的生物柴油产率。所制备的生物柴油的燃料性能符合国际生物柴油标准。
