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
Received: 23 Oct 2012; Published: 30 Dec 2012.
Open Access
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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  1. Jitputti, J., Kitiyanan, B., Rangsunvigi,. P., Bunyakiat, K., Attanatho, L. and Jenvanitpanjakul, P. 2006. Transesterification of crude palm kernel oil and crude coconut oil by different solid catalysts. Chemical Engineering Journal, 116: 61-66. CrossRef
  2. Bala, B.K. 2005. Studies on biodiesels from transformation of vegetable oils for Diesel engines. Energy Education Science and Technology, 15: 1–43.
  3. Demirbas, A. 2003. Biodiesel fuels from vegetable oils via catalytic and non-catalytic supercritical alcohol transesterifications and other methods: a survey. Energy Conversion and Management, 44: 2093-2109. CrossRef
  4. Dorado, M., Ballesteros, E., Arnal, J., Gomez, J., Lopez, F. 2003. Exhaust Emissions from a Diesel Engine Fueled with Transesterified Waste Olive Oil. Fuel, 82: 1311-1315. CrossRef
  5. Xie, W., Peng, H., Chen, L. 2006. Transesterification of soybean oil catalyzed by potassium loaded on alumina as a solid-base catalyst. Applied Catalysis A: General, 300: 67-74. CrossRef
  6. Suppes, G.J., Bockwinkel, K., Lucas, S., Botts, J.B., Mason, M.H., Heppert, J.A. 2001. Calcium carbonate catalyzed alcoholysis of fats and oils. Journal of the American Oil Chemist’ Society. 78: 139–145. CrossRef
  7. Verziu, M., Cojocaru, B., Hu, J., Richards, R., Ciuculescu, C., Filip P., Parvulescu, V. I. 2008. Sunflower and rapeseed oil transesterification to biodiesel over different nanocrystalline MgO catalysts. Green Chemistry, 10: 373-381. CrossRef
  8. Gai, P.L., Montero, J.M., Lee, A.F., Wilson, K., Boyes, E.D. 2009. In situ Aberration Corrected-Transmission Electron Microscopy of Magnesium Oxide Nanocatalysts for Biodiesels. Catalysis Letters, 132: 182-188. CrossRef
  9. Gryglewicz, S. 1999. Rapeseed oil methyl esters preparation using heterogeneous catalysts. Bioresource Technology, 70: 249-253. CrossRef
  10. Suppes, G., Dasari, M., Doskocil, E., Mankidy, P., Goff, M. 2004. Transesterification of soybean oil with zeolite and metal catalysts. Applied Catalysis A: General, 257: 213-223. CrossRef
  11. Bournay, L., Casanave, D., Delfort, B., Hillion, G., Chodorge, J. 2005. Transesterification of soybean oil with zeolite and metal catalysts. Catalysis Today, 106: 190-192. CrossRef
  12. Xie, W., Huang, X. 2006. Synthesis of Biodiesel from Soybean Oil using Heterogeneous KF/ZnO Catalyst. Catalysis Letters, 107: 53-59. CrossRef
  13. Watkins, R.S., Lee, A.F., Wilson, K. 2004. Li-CaO catalysed tri-glyceride transesterification for biodiesel applications. Green Chemistry, 6: 335-340. CrossRef
  14. Istadi, I, Pramudono, B., Suherman, S., Priyanto. S. 2010. Potential of LiNO3/Al2O3 Catalyst for Heterogeneous Transesterification of Palm Oil to Biodiesel. Bulletin of Chemical Reaction Engineering and Catalysis, 5: 51-56 CrossRef
  15. Jitputti, J., Kitiyanan, B., Rangsunvigit, P., Bunyakiat, K., Attanatho, L., Jenvanitpanjakul, P. 2006. Transesterification of Crude Palm Kernel Oil and Crude Coconut Oil by Different Solid Catalysts. Chemical Engineering Journal, 116: 61–66. CrossRef
  16. Chavan, S.P., Zubaidha, P.K., Dantale, S.W., Keshavaraja, A., Ramaswamy, A.V., Ravindranathan, T. 1996. Use of solid superacid (sulphated SnO2) as efficient catalyst in facile transesterification of ketoesters. Tetrahedron Letters, 37: 233-236 CrossRef
  17. Tamaddon, F., Amrollahi, M.A., Sharafat, L. (2005). A green protocol for chemoselective O-acylation in the presence of zinc oxide as a heterogeneous, reusable and eco-friendly catalyst. Tetrahedron Letters. 46: 7841–7844. CrossRef
  18. Yang, Z., Xie, W. (2007). Soybean oil transesterification over zinc oxide modified with alkali earth metals. Fuel Processing Technology. 88: 631–638. CrossRef
  19. Zhao, L. 2010. Novel Solid Base Catalysts for the Production of Biodiesel from Lipids. PhD Thesis, University of Kansas.
  20. Reddy, C.R.V., Oshel, R., Verkade, J.G. 2006. Room-temperature conversion of soybean oil and poultry fat to biodiesel catalyzed by nanocrystalline calcium oxides. Energy & Fuels, 20: 1310-1314. CrossRef