Arumugam A, Ponnusami V
School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, India.
Heliyon. 2017 Dec 28;3(12):e00486. doi: 10.1016/j.heliyon.2017.e00486. eCollection 2017 Dec.
Waste sardine oil, a byproduct of fish industry, was employed as a low cost feedstock for biodiesel production. It has relatively high free fatty acid (FFA) content (32 mg KOH/g of oil). Lipase enzyme immobilized on activated carbon was used as the catalyst for the transesterification reaction. Process variables viz. reaction temperature, water content and oil to methanol molar ratio were optimized. Optimum methanol to oil molar ratio, water content and temperature were found to be 9:1, 10 v/v% and 30 °C respectively. Reusability of immobilized lipase was studied and it was found after 5 cycles of reuse there was about 13% drop in FAME yield. Engine performance of the produced biodiesel was studied in a Variable Compression Engine and the results confirm that waste sardine oil is a potential alternate and low-cost feedstock for biodiesel production.
废弃沙丁鱼油是鱼类加工行业的副产品，被用作生物柴油生产的低成本原料。它具有相对较高的游离脂肪酸（FFA）含量（32毫克氢氧化钾/克油）。固定在活性炭上的脂肪酶用作酯交换反应的催化剂。对工艺变量，即反应温度、含水量和油与甲醇的摩尔比进行了优化。发现最佳甲醇与油的摩尔比、含水量和温度分别为9:1、10体积/体积%和30℃。研究了固定化脂肪酶的可重复使用性，发现重复使用5个循环后，脂肪酸甲酯（FAME）产率下降了约13%。在可变压缩发动机中研究了所生产生物柴油的发动机性能，结果证实废弃沙丁鱼油是生物柴油生产的潜在替代且低成本的原料。
