高活性离子液体杂多酸催化大豆油制备生物柴油工艺的研究  

Preparation of Biodiesel from Soybean Oil Catalyzed by Highly Active Ionic Liquid Modified Heteropolyacid

作　　者：王婕 郏俊浩 蒋佳睿 王佳佳 朱冰心 郑芷洁 韩晓祥[1] Wang Jie;Jia Junhao;Jiang Jiarui;Wang Jiajia;Zhu Bingxin;Zheng Zhijie;Han Xiaoxiang(School of Food Science and Biotechnology,Zhejiang Gongshang University,Hangzhou 310018)

机构地区：[1]浙江工商大学食品与生物工程学院,杭州310018

出　　处：《中国粮油学报》2024年第7期153-158,共6页Journal of the Chinese Cereals and Oils Association

摘　　要：以氯球为载体,经氨基化、磺化等制备了系列氯球固载化离子液体杂多酸,并以其为催化剂,考察其在甲醇与大豆油酯交换制备生物柴油反应中的催化性能及影响生物柴油产率的因素,同时通过响应面法优化制备工艺。研究表明,[CPPI-SO_(3)H]_(2.0)H_(1.0)PW_(12)O_(40)催化剂具有最好的催化酯交换反应活性,催化剂强的BrΦnsted酸性及“假液相”特性是其具有高活性的原因。在甲醇与大豆油摩尔比为25.5∶1.0,催化剂质量为大豆油质量的5.2%,119℃的最佳生物柴油制备工艺条件下反应20 h,获得了97.3%的生物柴油平均产率,该结果与模型预测值基本相符。A series of ionic liquid heteropoly acids supported by chlorine balls were prepared by amination and sulfonation,etc.,and their catalytic properties in the transesterification of methanol and soybean oil to biodiesel and the factors affecting the biodiesel yield were investigated.Moreover,an experimental design was exploited via response surface methodology(RSM)for the optimization of process variables.The results indicated that[CPPI-SO_(3)H]_(2.0)H_(1.0)PW_(12)O_(40)catalyst exhibited superior performance during synthetic process.The suitable Bronsted acid strength and"pseudo liquid phase"characteristics of the catalyst were the reasons for its high catalytic activity.Under the optimum preparation conditions of 25.5∶1.0 molar ratio of methanol to soybean oil,5.2%of soybean oil by weight of[CPPI-SO_(3)H]_(2.0)H_(1.0)PW_(12)O_(40),and 119℃for 20 h,the average biodiesel yield of 97.3%was obtained,basically consistent with the predicted value of the model.

关 键 词：离子液体 杂多酸 酯交换反应 生物柴油 响应面法 

分 类 号：TQ517.2[化学工程]