响应面法优化碱催化亮斑扁角水虻幼虫虫脂制备生物柴油工艺  

Optimization of alkali-catalyzed synthesis of biodiesel from insecticidal fat of black soldier fly larvae by response surface methodology

作　　者：彭乔烽 张栋 马小梅 刘高强 丁功涛 周雪雁[1] 皮尔·穆罕默德·阿卜杜勒 PENG Qiaofeng;ZHANG Dong;MA Xiaomei;LIU Gaoqiang;DING Gongtao;ZHOU Xueyan;PEER Mohamed Abdul(China-Malaysia National Joint Laboratory,Northwest Minzu University,Lanzhou 730030,China;College of Life Sciences and Engineering,Northwest Minzu University,Lanzhou 730030,China;Biomedical Research Center,Northwest Minzu University,Lanzhou 730030,China;Faculty of Engineering and Built Environment,The National University of Malaysia,Bangi 43600,Selangor,Malaysia)

机构地区：[1]西北民族大学中国-马来西亚国家联合实验室,兰州730030 [2]西北民族大学生命科学与工程学院,兰州730030 [3]西北民族大学生物医学研究中心,兰州730030 [4]马来西亚国立大学工程与建筑环境学院,马来西亚雪兰莪州万宜43600

出　　处：《中国油脂》2023年第4期69-74,共6页China Oils and Fats

基　　金：中央高校基本科研业务费项目“屠宰血液废弃物能源化与材料化利用研究”(31920220023);甘肃省科技厅“科技助力经济2020”重点专项(SQ2020YFF0405583)。

摘　　要：为实现亮斑扁角水虻幼虫(Black soldier fly larvae, BSFL)虫脂能源化利用,采用石油醚提取BSFL虫脂,通过碱催化BSFL虫脂甲酯化制备生物柴油。在单因素试验的基础上,利用响应面试验设计优化BSFL虫脂合成生物柴油的工艺条件;使用气质联用仪分析生物柴油的脂肪酸组成,并评价生物柴油性能。结果表明:BSFL虫脂合成生物柴油的最优工艺条件为醇油体积比7.2∶1、反应时间2.0 h、KOH添加量为反应体系总质量的1.0%,在此条件下生物柴油产率达93.7%;生物柴油主要脂肪酸组分及含量为C12∶0 12.8%、C14∶0 3.8%、C16∶0 16.2%、C16∶1 1.9%、C18∶0 4.4%、C18∶1 24.2%、C18∶2 26.8%、C18∶3 4.1%;生物柴油运动黏度(40℃) 3.842 5 mm^(2)/s、运动黏度(25℃) 5.311 mm^(2)/s、动力黏度(25℃) 4.640 mPa·s、密度(25℃) 874 kg/m^(3)、密度(15℃) 879 kg/m^(3)、酸值(KOH) 0.12 mg/g、硫含量26 mg/kg、开口闪点160℃、闭口闪点142℃、残炭小于0.10%。碱催化BSFL虫脂甲酯化制备生物柴油的C14~C18含量较高,性能较好。In order to realize the energy utilization of insecticidal fat of black soldier fly larvae(BSFL), biodiesel was synthesized by alkali-catalyzed methyl esterification of insecticidal fat of BSFL extracted with petroleum ether, and on the basis of single factor experiment, the process conditions for the synthesis of biodiesel were optimized by response surface methodology. GC-MS was used to analyze the fatty acid composition of biodiesel. The performance of biodiesel was also evaluated. The results showed that the optimal conditions for the synthesis of biodiesel from insecticidal fat of BSFL were obtained as follows: volume ratio of alcohol to oil 7.2∶1, reaction time 2.0 h, dosage of KOH 1.0% of the total mass of the reaction system. Under these conditions, biodiesel yield reached 93.7%. The main fatty acid composition and content of biodiesel were C12∶0 12.8%, C14∶0 3.8%, C16∶0 16.2%, C16∶1 1.9%, C18∶0 4.4%, C18∶1 24.2%, C18∶2 26.8%, C18∶3 4.1%. The performance of biodiesel were kinematic viscosity (40℃) 3.842 5 mm^(2)/s, kinematic viscosity (25℃) 5.311 mm^(2)/s, dynamic viscosity (25℃) 4.640 mPa·s, density (25℃) 874 kg/m^(3), density (15℃) 879 kg/m^(3), acid value 0.12 mgKOH/g, sulfur content 26 mg/kg, open flash point 160℃, closed flash point 142℃, residual carbon less than 0.10%. The biodiesel synthesized from insecticidal fat of BSFL has a high content of C14-C18 and good performance.

关 键 词：亮斑扁角水虻幼虫 虫脂 生物柴油 甲酯化 响应面法优化 

分 类 号：S216.1[农业科学—农业机械化工程] TE667[农业科学—农业工程]