Potential of SO42-/ ZnO Acid Catalyst for Heterogeneous Transesterification of Vegetable Oil to Biodiesel
| Main Authors: | I. , Istadi, Didi , D. Anggoro, Luqman , Buchori, Inshani , Utami, Roikhatus , Solikhah |
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| Format: | Proceeding PeerReviewed application/pdf |
| Terbitan: |
, 2012
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| Subjects: | |
| Online Access: |
http://eprints.undip.ac.id/36937/1/BRE-18_Istadi.pdf http://eprints.undip.ac.id/36937/ |
Daftar Isi:
- Among the possible renewable energy resources, diesel fuels derived from triglycerides of vegetable oils and animal fats have shown potential as substitutes for petroleum-based diesel fuels. The biodiesel could be produced from vegetable oils over homogeneous catalyst, heterogeneous catalyst, or enzymatic catalyst. In this study, the synthesized SO42-/ZnO catalyst was explored to be used in the heterogeneous biodiesel production by using the vegetable oils and methanol. The study began with the preparation of SO42-/ZnO catalyst followed by the transesterification reaction between vegetable oil with methanol. The independent variables (reaction time and the weight ratio of catalyst/oil) were optimized to obtain the optimum biodiesel (fatty acid methyl ester) yield. The results of this study showed that the acid catalyst SO42-/ZnO is potential to be used as catalyst for biodiesel production through heterogeneous transesterification of vegetable oils. Optimum operating condition for this catalytic reaction is the weight ratio of catalyst/oil of 8:1 and reaction time of 2.6 h with respect to 75.5% yield of methyl ester products. The biodiesel product was also characterized to identify the respected fatty acid methyl ester components.