DOI: https://doi.org/10.9767/bcrec.7.2.4064.150-157

Process Parameters Optimization of Potential SO42-/ZnO Acid Catalyst for Heterogeneous Transesterification of Vegetable Oil to Biodiesel

*Istadi Istadi  -  Laboratory of Energy and Process Engineering, Chemical Reaction Engineering an Catalysis Group, Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Kampus Undip Tembalang, Semarang 50275, Indonesia
Didi D. Anggoro  -  Laboratory of Energy and Process Engineering, Chemical Reaction Engineering an Catalysis Group, Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Kampus Undip Tembalang, Semarang 50275, Indonesia
Luqman Buchori  -  Laboratory of Energy and Process Engineering, Chemical Reaction Engineering an Catalysis Group, Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Kampus Undip Tembalang, Semarang 50275, Indonesia
Inshani Utami  -  Laboratory of Energy and Process Engineering, Chemical Reaction Engineering an Catalysis Group, Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Kampus Undip Tembalang, Semarang 50275, Indonesia
Roikhatus Solikhah  -  Laboratory of Energy and Process Engineering, Chemical Reaction Engineering an Catalysis Group, Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Kampus Undip Tembalang, Semarang 50275, Indonesia

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Abstract

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 was potential to be used as catalyst for biodiesel production through heterogeneous transesterification of vegetable oils. Optimum operating condition for this catalytic reaction was 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. Copyright © 2012 by BCREC UNDIP. All rights reserved. (Selected Paper from International Conference on Chemical and Material Engineering (ICCME) 2012)

Received: 23rd October 2012, Revised: 25th November 2012, Accepted: 25th November 2012

[How to Cite: I. Istadi, Didi D. Anggoro, Luqman Buchori, Inshani Utami, Roikhatus Solikhah, (2012). Process Parameters Optimization of Potential SO42-/ZnO Acid Catalyst for Heterogeneous Transesterification of Vegetable Oil to Biodiesel. Bulletin of Chemical Reaction Engineering & Catalysis, 7(2): 150-157. (doi:10.9767/bcrec.7.2.4064.150-157)]

[How to Link / DOI: http://dx.doi.org/10.9767/bcrec.7.2.4064.150-157 ]

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Keywords: biodiesel; super acid catalyst; palm oil; SO42-/ZnO; fatty acid methyl ester

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Section: Original Research Articles
Language : EN
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