Biodiesel synthesis via heterogeneous catalysis using modified strontium oxides as the catalysts

Ching Lung Chen, Chien Chang Huang, Dang Thuan Tran, Jo Shu Chang

研究成果: Article同行評審

56 引文 斯高帕斯(Scopus)

摘要

In this work, alkaline earth metal oxides (i.e., MgO, CaO, and SrO) were used as catalysts for the transesterification of olive oil with methanol. The most efficient catalyst was further doped with either CaO or SiO 2 to improve its catalytic activity, which was evaluated by conducting transesterification at different reaction temperatures, different water content, and using different types of oils. Finally, repeated tests were conducted to evaluate the reusability of the doped catalyst. The results show that the conversion of refined olive oil to biodiesel was more than 80% in 15min when SrO was applied, while using SrO doped SiO 2 (SrO/SiO 2) further increased the conversion to 95% in 10min. SrO/SiO 2 also featured good water and free fatty acids (FFAs) tolerance, as the conversion was still higher than 90% (in 20min) when the water and FFAs contents were increased to 3.23 and 3.14wt.%, respectively. Addition of hexane significantly improved the reusability of SrO/SiO 2 for transesterification, as the biodiesel production still reached nearly 80% after the catalyst was repeatedly used for four times.

原文English
頁(從 - 到)8-13
頁數6
期刊Bioresource technology
113
DOIs
出版狀態Published - 2012 六月

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 環境工程
  • 可再生能源、永續發展與環境
  • 廢物管理和處置

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