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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (18): 2025-2028. 上一篇    下一篇

研究论文

气相色谱法监测氧化钙催化制备生物柴油的反应进度

刘晓华1, 吴宗斌2, 张萍*,1, 汤志勇1, 朱华平1, 段世杰2, 毛宗强*,2   

  1. (1中国地质大学材料科学与化学工程学院 武汉 430074)
    (2清华大学核能与新能源技术研究院 北京 100084)
  • 投稿日期:2006-05-21 修回日期:2006-12-20 发布日期:2007-09-28
  • 通讯作者: 张萍, 毛宗强

Monitoring Reactive Degree of Biodiesel Catalyzed by Calcium Oxide via Gas Chromatography

LIU Xiao-Hua1; WU Zong-Bin2; ZHANG Ping*,1; TANG Zhi-Yong1; ZHU Hua-Ping1; DUAN Shi-Jie2; MAO Zong-Qiang*,2   

  1. (1 Faculty of Material Science and Chemical Engineering, China University of Geosciences, Wuhan 430074)
    (2 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084)
  • Received:2006-05-21 Revised:2006-12-20 Published:2007-09-28
  • Contact: ZHANG Ping; MAO Zong-Qiang

PDF

891

被引次数

6

建立了一种通过检测氧化钙催化制备生物柴油过程中产生的甘油来监测反应进度的方法. 在反应样品中加入草酸、硫酸溶液, 除掉由催化剂引入的钙离子, 释放与氧化钙结合的甘油, 利用气相色谱方法检测甘油的含量. 讨论了实验中加入草酸、硫酸的目的及对结果的影响. 实验结果表明, 此法可用于氧化钙催化制备生物柴油过程中反应进度监测的研究.

关键词: 生物柴油, 检测, 甘油, 气相色谱, 转化率

In this work, a method of quantitatively analyzing glycerol to monitor the reactive degree of biodiesel catalyzed by calcium oxide was established. The calcium ions originated from catalysts were removed and the glycerol combined with calcium oxide was released by adding oxalic acid and sulfuric acid to the products. The amount of glycerol was measured by the gas chromatography. The aims and the influences of oxalic acid, sulfuric acid in the system were discussed. At the same time, the method was used in studying the kinetics of the transesterification.

Key words: biodiesel, monitor, glycerol, gas chromatography, conversion