Nenyoo Phetcharat, Wongsurakul Peerawat, Kiatkittipong Worapon, Kaewtrakulchai Napat, Srifa Atthapon, Eiad-Ua Apiluck, Assabumrungrat Suttichai
Bio-Circular-Green-Economy Technology & Engineering Center, BCGeTEC, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand.
ACS Omega. 2024 Sep 10;9(38):39757-39766. doi: 10.1021/acsomega.4c05000. eCollection 2024 Sep 24.
The vinasse waste was effectively converted to nanoporous carbon (NPC) via hydrothermal carbonization with potassium hydroxide (KOH) activation. The nanoporous carbon (NPC) exhibited a maximum surface area of 1018 m/g and it was utilized as a catalyst for the conversion of palm oil into green diesel fuel. The supported NPC catalyst was fabricated via a wet impregnation technique, where finely distributed iron phosphide (FeP) particles were cemented. The FeP/NPC catalyst was evaluated for its physicochemical characteristics using various techniques including X-ray diffraction (XRD), nitrogen sorption analyzer, transmission electron microscopy (TEM), and energy dispersive X-ray spectrometry (EDS) mapping. An investigation was conducted to examine the effects of different temperatures (ranging from 280 to 360 °C) on the conversion of palm oil through deoxygenation reactions. The FeP/NPC catalyst exhibited remarkable particle dispersion and surface area. At a reaction temperature of 340 °C, the FeP/NPC catalyst had the best selectivity for green diesel, reaching 68.5%. The finding implies that FeP catalysts, when supported, hold significant promise for converting triglycerides into renewable diesel fuel. Moreover, they provide the advantage of being more cost-effective than valuable metals, while demonstrating excellent catalytic efficiency in the production of biofuels. Furthermore, it has been shown that the FeP/NPC catalyst can be recycled by subjecting it to heat treatment to remove impurities and obtain reduction.
酒糟废料通过水热碳化和氢氧化钾（KOH）活化有效地转化为纳米多孔碳（NPC）。该纳米多孔碳（NPC）的最大表面积为1018 m²/g，被用作将棕榈油转化为绿色柴油燃料的催化剂。负载型NPC催化剂通过湿浸渍技术制备，其中精细分布的磷化铁（FeP）颗粒被粘结。使用包括X射线衍射（XRD）、氮吸附分析仪、透射电子显微镜（TEM）和能量色散X射线光谱（EDS）映射在内的各种技术对FeP/NPC催化剂的物理化学特性进行了评估。进行了一项研究，以考察不同温度（280至360°C）对棕榈油通过脱氧反应转化的影响。FeP/NPC催化剂表现出显著的颗粒分散性和表面积。在340°C的反应温度下，FeP/NPC催化剂对绿色柴油的选择性最佳，达到68.5%。这一发现意味着负载型FeP催化剂在将甘油三酯转化为可再生柴油燃料方面具有巨大潜力。此外，它们具有比贵金属更具成本效益的优势，同时在生物燃料生产中表现出优异的催化效率。此外，研究表明，FeP/NPC催化剂可以通过热处理去除杂质并实现还原而进行回收利用。
