采用两步法，以油棕淤渣为原料生产生物柴油。
Sludge palm oil as a renewable raw material for biodiesel production by two-step processes.
机构信息
Bioenvironmental Engineering Research Unit-BERU, Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia, P.O. Box 10, Kuala Lumpur 50728, Malaysia.
出版信息
Bioresour Technol. 2010 Oct;101(20):7804-11. doi: 10.1016/j.biortech.2010.05.045. Epub 2010 Jun 11.
In this study, biodiesel was produced from sludge palm oil (SPO) using tolune-4-sulfonic monohydrate acid (PTSA) as an acid catalyst in different dosages in the presence of methanol to convert free fatty acid (FFA) to fatty acid methyl ester (FAME), followed by a transesterification process using an alkaline catalyst. In the first step, acid catalyzed esterification reduced the high FFA content of SPO to less than 2% with the different dosages of PTSA. The optimum conditions for pretreatment process by esterification were 0.75% (w/w) dosage of PTSA to SPO, 10:1 M ratio, 60 °C temperature, 60 min reaction time and 400 rpm stirrer speed. The highest yield of biodiesel after transesterification and purification processes was 76.62% with 0.07% FFA and 96% ester content. The biodiesel produced was favorable as compared to EN 14214 and ASTM 6751 standard. This study shows a potential exploitation of SPO as a new feedstock for the production of biodiesel.
本研究以污油棕榈（SPO）为原料，采用对甲苯磺酸一水合物（PTSA）作为酸催化剂，在甲醇存在下，不同剂量下将游离脂肪酸（FFA）转化为脂肪酸甲酯（FAME），然后使用碱性催化剂进行酯交换反应。在第一步中，酸催化酯化将 SPO 中的高 FFA 含量降低到 2%以下，使用不同剂量的 PTSA。酯化预处理的最佳条件为 PTSA 与 SPO 的质量比为 0.75%（w/w），醇油摩尔比为 10:1，温度为 60°C，反应时间为 60 分钟，搅拌速度为 400rpm。经过酯交换和提纯后，生物柴油的最高收率为 76.62%，FFA 含量为 0.07%，酯含量为 96%。与 EN 14214 和 ASTM 6751 标准相比，所制备的生物柴油具有优势。本研究表明，污油棕榈作为生物柴油生产的一种新型原料具有很大的开发潜力。
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