Jaruwat Dolrudee, Kaewtrakulchai Napat, Siriorarnroj Siwat, Srifa Atthapon, Kiatkittipong Worapon, Charojrochkul Sumittra, Fuji Masayoshi, Eiad-Ua Apiluck, Assabumrungrat Suttichai
Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
Kasetsart Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University, Bangkok, Bangkhen 10900, Thailand.
ACS Omega. 2024 Oct 3;9(41):42329-42342. doi: 10.1021/acsomega.4c05207. eCollection 2024 Oct 15.
Upgrading biodiesel or hydrogenated fatty acid methyl esters (H-FAMEs) by partial hydrogenation is a second-generation biofuel with high specific fuel characteristics, such as superior cold flow properties, higher oxidative stability, and lower hazardous gas emissions, allowing this biofuel to provide excellent fuel properties, over conventional biodiesel. This study assessed the potential of using nanoporous carbon produced from cattail leaves (CL) as an alternative catalyst support. We synthesized various catalysts including monometallic Mo/NPC, Ni/NPC, Ce/NPC, and Fe/NPC catalysts, as well as bimetallic molybdenum-based catalysts doped with nickel, copper, or iron for the partial hydrogenation of soybean biodiesel. The NPC support demonstrated a surface area ( ) of approximately 1,323 mg, which greatly increases the catalytic activity through the efficient dispersion of catalyst active sites. The partial hydrogenation reaction of soybean FAME over the MoNi/NPC catalyst obtained the highest catalytic activity with enhanced oxidation stability from 3 to 14 h, and the cloud point and pour point increased from 2 to 13 °C and -1 to 10 °C, respectively. Hence, the selection of catalysts is crucial due to their impact on the feasibility of the process and its economic viability. This article focuses on highlighting the effectiveness of a highly promising catalyst for partial hydrogenation as well as examining the variables that influence the primary reaction pathway.
通过部分氢化升级生物柴油或氢化脂肪酸甲酯（H-FAMEs）是一种具有高比燃料特性的第二代生物燃料，如优异的低温流动性能、更高的氧化稳定性和更低的有害气体排放，使得这种生物燃料相比传统生物柴油具有出色的燃料性能。本研究评估了使用香蒲叶（CL）制备的纳米多孔碳作为替代催化剂载体的潜力。我们合成了各种催化剂，包括单金属Mo/NPC、Ni/NPC、Ce/NPC和Fe/NPC催化剂，以及掺杂镍、铜或铁的双金属钼基催化剂，用于大豆生物柴油的部分氢化。NPC载体的表面积约为1323mg，通过有效分散催化剂活性位点大大提高了催化活性。在MoNi/NPC催化剂上大豆脂肪酸甲酯的部分氢化反应获得了最高的催化活性，氧化稳定性从3小时提高到14小时，浊点和倾点分别从2℃提高到13℃和从-1℃提高到10℃。因此，由于催化剂对工艺可行性及其经济可行性的影响，催化剂的选择至关重要。本文重点强调了一种极具前景的部分氢化催化剂的有效性，并研究了影响主要反应途径的变量。
