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

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

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)8-13
Number of pages6
JournalBioresource Technology
Volume113
DOIs
Publication statusPublished - 2012 Jun 1

Fingerprint

Strontium
Biofuels
catalysis
Biodiesel
strontium
Oxides
Catalysis
Transesterification
catalyst
oxide
Olive oil
Catalysts
Reusability
Fatty acids
Nonesterified Fatty Acids
oil
fatty acid
Alkaline Earth Metals
alkaline earth metal
Alkaline earth metals

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Chen, Ching Lung ; Huang, Chien Chang ; Tran, Dang Thuan ; Chang, Jo-Shu. / Biodiesel synthesis via heterogeneous catalysis using modified strontium oxides as the catalysts. In: Bioresource Technology. 2012 ; Vol. 113. pp. 8-13.
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Biodiesel synthesis via heterogeneous catalysis using modified strontium oxides as the catalysts. / Chen, Ching Lung; Huang, Chien Chang; Tran, Dang Thuan; Chang, Jo-Shu.

In: Bioresource Technology, Vol. 113, 01.06.2012, p. 8-13.

Research output: Contribution to journalArticle

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