催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (4): 294-296.

• 研究快讯 • 上一篇    下一篇

高活性离子液体催化棉籽油酯交换制备生物柴油

吴芹1,2,陈和1,韩明汉1,王金福1,王德峥1,金涌1   

  1. 1 清华大学化工系, 北京 100084; 2 北京理工大学化工与环境学院, 北京 100081
  • 收稿日期:2006-04-25 出版日期:2006-04-25 发布日期:1984-12-26

Transesterification of Cottonseed Oil to Biodiesel Catalyzed by Highly Active Ionic Liquids

WU Qin1,2, CHEN He1, HAN Minghan1*, WANG Jinfu1, WANG Dezheng1, JIN Yong1   

  1. 1 Department of Chemical Engineering, Tsinghua University, Beijing 100084, China; 2 School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China
  • Received:2006-04-25 Online:2006-04-25 Published:1984-12-26

PDF

1345

被引次数

372

摘要： 制备了五种对水稳定性好、带-SO3H 官能团的Bronsted酸离子液体,并用它们催化棉籽油酯交换反应制备生物柴油. 结果表明,磺酸类Bronsted酸离子液体具有很好的催化活性,其催化活性与阳离子中的含氮官能团和碳链长度有关,吡啶丁烷磺酸硫酸氢盐离子液体的催化活性最好,其活性接近于浓硫酸催化剂. 离子液体容易同产物分离,具有很好的稳定性,可以循环使用,对环境友好,是制备生物柴油的较理想催化剂.

关键词: 离子液体, Brnsted酸, 酸催化, 棉籽油, 酯交换反应, 生物柴油

Abstract: The transesterification of cottonseed oil to biodiesel catalyzed by ionic liquids was studied. Several water-stable Bronsted-acidic ionic liquids with an alkane sulfonic acid group were synthesized. These ionic liquids show good catalytic activity for the transesterification of cottonseed oil. The catalytic activity of each ionic liquid is dependent on its cation. The ionic liquid 1-(4-sulfonic acid)butylpyridinium hydrogen sulfate shows the best catalytic activity, which is nearly the same as the catalytic activity of concentrated sulfuric acid. The produced biodiesel can be separated via simple decantation, and the ionic liquids can be reused after distillation.

Key words: ionic liquid, Bronsted acid, acid catalysis, cottonseed oil, transesterification, biodiesel