Brφnsted-Lewis酸性离子液体催化大豆油与甲醇酯交换研究

发布时间：2018-01-19 13:12

  本文关键词： B-L酸性离子液体 酯交换 大豆油 生物柴油　出处：《中国粮油学报》2017年04期 　论文类型：期刊论文

【摘要】：以制备的Brφnsted-Lewis酸性离子液体[HO_3S-(CH_2)_3-mim]C1-xFeCl_3为催化剂,大豆油为原料,通过酯交换反应制备生物柴油。考察醇油物质的量比、催化剂的用量、反应温度和反应时间等因素对酯交换反应的影响。在此基础上运用响应面分析法得出合成生物柴油的最佳工艺条件为n(醇):n(油)=16:1,催化剂用量为原料大豆油质量的8%,反应温度为120℃,此条件下反应24 h生物柴油的产率可达94.1%,与回归模型预测的实验结果相当。Brφnsted-Lewis酸性离子液体催化剂与产品易于分离,在重复使用6次以后,仍保持良好的催化活性。
[Abstract]:Preparation of Br 蠁 nsted-Lewis acidic Ionic liquids. [HO_3S-(CH_2)_3-mim] C1-xFeCl3 was used as catalyst and soybean oil as raw material to prepare biodiesel by transesterification. The amount of catalyst. The effects of reaction temperature and reaction time on the transesterification were studied. Based on the analysis of the reaction surface, the optimum reaction conditions for the synthesis of biodiesel were obtained as follows: n (n: n). The amount of catalyst is 8% of the quality of raw soybean oil, and the reaction temperature is 120 鈩，

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