期刊
CATALYSIS TODAY
卷 93-5, 期 -, 页码 315-320出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2004.06.007
关键词
transesterification; vegetable oil; methyl ester; biodiesel; heterogeneous base catalyst
Biodiesel produced by the transesterification of vegetable oils (VOs) is a promising alternative fuel to diesel regarding the limited resources of fossil fuel and the environmental concerns. In this work, an environmentally benign process for the production of biodiesel from VOs using heterogeneous catalyst was developed. Na/NaOH/gamma-Al2O3 heterogeneous base catalyst was firstly adopted for the production of biodiesel. A study for optimizing the reaction conditions such as the reaction time, the stirring speed, the use of co-solvent, the oil to methanol ratio, and the amount of catalyst, was performed. The Na/NaOH/gamma-Al2O3 heterogeneous base catalyst showed almost the same activity under the optimized reaction conditions compared to conventional homogeneous NaOH catalyst. The basic strength of Na/NaOH/gamma-Al2O3 catalyst was estimated and the correlation with the activity towards transesterification was proposed. (C) 2004 Elsevier B.V. All rights reserved.
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