Biodiesel Production over nano-MgO Supported on Titania
Authors: Liberty L Mguni, Reinout Meijboom, Kalala Jalama
Abstract:
Nano-MgO was successfully deposited on titania using deposition-precipitation method. The catalyst produced was characterised using FTIR, XRD, BET and XRF and its activity was tested on the transesterification reaction of soybean oil to biodiesel. The catalyst activity improved when the reaction temperature was increasedfrom 150 and 225 OC. It was also observed that increasing the reaction time above 1h had no significant benefit on conversion. The stability fixed MgO on TiO2 was investigated using XRF and ICP-OES. It was observed that MgO loss during the reaction was between 0.5-2.3 percent and that there was no correlation between the reaction temperature and the MgO loss.
Keywords: Nano-MgO, TiO2, transesterification
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1080404
Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1923References:
[1] J. Walton, "The Fuel Possibilities of Vegetable Oils",Gas Oil Power,Vol 33,pp. 167-168,1939
[2] G. Knothe, J. Van Gerpen, and J.Krahl,The Biodiesel Handbook. Champaign Illinois: AOCS Press. 2005, ch. 1.
[3] A.W. Schwab, M.O. Bagby and B. Freedman, "Preparation and properties of diesel fuels from vegetable oils",Fuel, vol. 66, no. 10 pp. 1372-1378, Oct 1987.
[4] C. Xu, D. I. Enache, R. Lloyd, D. W. Knight, J. K. Bartley and G. J. Hutchings, "MgOCatalysed Triglyceride Transesterification for Biodiesel Synthesis", Catal.Lett., vol. 138, pp. 1-7, May 2010.
[5] J-S. Lee and S. Saka, "Biodiesel production by heterogeneous catalysts and supercritical technologies",Biores.Techn., vol. 101, no. 19 pp. 7191- 7200, Oct 2010.
[6] A. R. Yacob, M. K. A. A.Mustajab and N. S.Samadi, "Calcination Temperature of Nano MgO Effect on Base Transesterification of Palm Oil",World Academy of Science, Engineering and Technology., vol. 56, pp. 408-412, 2009.
[7] L. Wang and J. Yang, "Transesterification of soybean oil with nano- MgO or not in supercritical and subcritical methanol", Fuel, vol. 86, no. 3, pp. 328-333, Feb 2007.
[8] M. Verziu, B. Cojocaru, J. Hu, R. Richards, C. Ciuculescu, P. Filipc and V. I. Parvulescu, "Sunflower and rapeseed oil transesterification to biodiesel over different nanocrystallineMgO catalysts,"Green Chem., vol. 10, no. 4, pp. 373-381, Dec 2008.
[9] J. Jitputti, B. Kitiyanan, P. Rangsunvigit, K. Bunyakiat, L.Attanatho and P.Jenvanitpanjakul, "Transesterification of crude palm kernel oil and crude coconut oil by different solid catalysts",Chem. Eng. J., vol. 116, no. 1, pp. 61-66, Feb 2006.
[10] M. K. Lam and K. T. Lee, "Application of Sulfated tin oxide in Transesterification of Waste Cooking oil: An Optimization Study,"in Second International Conference on Bioenvironment, Biodiversity and Renewable Energies,Italy, May 2011,pp. 17-20.
[11] B. Yoosuk, P. Udomsap, B. Puttasawat, P.Krasae, "Improving transesterification acitvity of CaO with hydration technique",Biores.Techn., vol. 101, no.10,pp. 3784-3786, May 2010.
[12] M. L. Granados, D. M. Alonso, A. C. Alba-Rubio, R. Mariscal, M. Ojeda and P. Brettes, "Transesterification of Triglycerides by CaO: Increase of the Reaction Rate by Biodiesel Addition",Energy Fuel, vol. 23, no. 4, pp. 2259-2263, March 2009.
[13] D. j. Vujicic, D. Comic, A. Zarubica, R. Micic and G. Boskovic, "Kinetics of biodiesel synthesis from sunflower oil over CaO heterogeneous catalyst", Fuel., vol. 89, no. 8, pp. 2054-2061, August2010.
[14] Z. Wen, X. Yu, S-T. Tu, J. Yan and E.Dahlquist, "Biodiesel production from waste cooking oil catalyzed by TiO2 -MgO mixed oxides",Biores.Techn., vol. 101, no. 24, pp. 9570-9576, Dec 2010.
[15] K. Jalama, N. J.Coville, D. Hildebrandt, L.L. Jewell, D. Glasser, "Fischer-Tropsch synthesis over Co/TiO2: Effect of ethanol addition", Fuel., vol. 86, no. 1-2,pp. 73-80, Jan 2007.
[16] R. Zennaro, M. Tagliabue and C. H. Bartholomew, "Kinetics of fischer- Tropsch synthesis on titania-supported cobalt",Catal. Today., vol. 58, no. 4, pp. 309-319, May 2000.
[17] B.Jongsomjit, T.Wongsalee and P.Praserthdam, "Study of Cobalt dispersion on titania consisting various rutile; anatase ratios",Mat. Chem. Phys., vol 92, no. 2-3,pp. 572-578, August 2005.
[18] G. Knothe, “Analyzing Biodiesel: Standards and Other Methods”,J.Am. Oil Chem. Soc., vol. 83, no. 10, pp. 823-833, Sept 2006.
[19] C. Li, G. Li and Q.Xin, “FT-IR Spectroscopic Studies of Methane Adsorption on Magnesium Oxide,”J. Phys. Chem., vol. 98, pp. 1933- 1938, 1994.