Process optimization for continuous production of sustainable biodiesel from completely non-edible biomass, lignocellulosic hydrous ethanol and waste fatty acids
Process optimization for continuous production of sustainable biodiesel from completely non-edible biomass, lignocellulosic hydrous ethanol and waste fatty acids
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DOI：
10.1016/j.fuel.2020.119884
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发表时间：
2021-04-01
期刊：
影响因子：
7.4
通讯作者：
Shibasaki-Kitakawa, Naomi
中科院分区：
文献类型：
--
作者：
Siddique, Nahian;Suzue, Masato;Shibasaki-Kitakawa, Naomi
这项工作开发了一种可持续生物柴油的连续生产工艺，从完全不可食用的生物质，以取代第一代从化石衍生的甲醇和食用油。从木质生物质获得的含水生物乙醇（没有需要大量能量输入的标准脱水）和作为食用油精炼的副产物产生的废脂肪酸被用作原料。在间歇和连续系统中，使用多孔阳离子交换树脂结合具有0至15重量%的水含量的乙醇进行酯化。通过优化反应时间，即使乙醇中的水浓度高达15wt%，在两个系统中也获得了超过90%的高脂肪酸转化率。由于发现树脂随着时间的推移保持其催化活性，因此该技术有望有助于未来可持续燃料系统的开发。
This work developed a continuous production process of sustainable biodiesel from completely non-edible biomass to replace first generation one from fossil derived methanol and edible oils. Hydrous bioethanol obtained from woody biomass (without the standard dehydration that requires a significant energy input) and waste fatty acids generated as by-products of edible oil refining were used as feedstocks. Esterification was performed using a porous cation-exchange resin in conjunction with ethanol having water levels of 0 to 15 wt%, in both batch and continuous systems. High fatty acid conversions of more than 90% were obtained in both systems by optimizing the reaction time, even with a water concentration in the ethanol as high as 15 wt%. Because the resin was found to maintain its catalytic activity over time, this technology is expected to assist in the development of future sustainable fuel systems.