Synthesis of biodiesel from Jatropha curcas L. seed oil using artificial zeolites loaded with CH3COOK as a heterogeneous catalyst

• 作者: Bao-An Song De-Yu Hu Jun Wang Lin-Hong Jin Shi-Tao Yin Song Yang Wei Xue Xia Shi You-Chun Zhou
• 来源期刊: 自然科学期刊(英文)
• 学科: 化学
• 关键词: BIODIESEL HETEROGENEOUS CATALYST Artificial Zeolites JATROPHA Curcas L. SEED Oil
• 年，卷（期）: zrkxqkyw_2009,（1）
• 页码范围: 55-62
• 页数: 8页
• 分类号: O6

摘要

An environmentally benign process was devel-oped for the transesterification of Jatropha curcas L. seed oil with methanol using artificial zeolites loaded with potassium acetate as a heterogeneous catalyst. After calcination for 5 h at 823 K, the catalyst loaded with 47 wt.% CH3COOK exhibited the highest efficiency and best catalytic activity. The easily prepared cata-lysts were characterized by means of X-ray dif-fraction and IR spectroscopy, as well as Hammett indicator titration. The results revealed a strong dependence of catalytic activity on ba-sicity. The optimum reaction conditions for transesterification of J. curcas oil were also in-vestigated. The methyl ester content in the bio-diesel product exceeded 91% after 4h reaction at reflux temperature in the presence of 2% solid catalyst and no water washing process is needed during workup.