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Ca-Al Hydrotalcites as Catalysts for Methanolysis and Ethanolysis of Soybean Oil

DOI: 10.4236/mrc.2014.34015, PP. 117-127

Keywords: Biodiesel, Transesterification, Ethanol, Methanol, Hydrotalcites, Soybean Oil

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Abstract:

The use of heterogeneous catalysts in the transesterification reaction of vegetable oils has getting emphasis in recent years, mainly by the alternative of obtaining clean fuel derived from renewable sources. Metal oxide such as MgO or CaO, supported ones like \"\" and zeolites are often applied in transesterification process. Among them, hydrotalcite has shown potential as catalysts on this reaction due to their physicochemical properties, such as: thermal stability, porosity, specific surface area, memory effect, basicity, acidity and anion exchange capacity. This work studies the catalytic performance of the calcium and aluminum based hydrotalcite in the transesterification reaction of soybean oil in methanol and ethanol. The hydrotalcite samples treated at 450?C were impregnated with KOH. The efficiency of impregnated and non- impregnated samples was compared and the non-impregnated one showed the best performance. This property was attributed to the higher availability of active sites used in the transesterification process.

References

[1]  Schuchardt, U., Sercheli, R. and Vargas, R.M. (1998) Transesterification of Vegetable Oils: A Review. Journal of the Brazilian Chemical Society, 9, 199-210. http://dx.doi.org/10.1590/S0103-50531998000300002
[2]  Lam, M.K., Lee, K.T. and Mohamed, A.R. (2010) Homogeneous, Heterogeneous and Enzymatic Catalysis for Transesterification of High Free Fatty Acid Oil (Waste Cooking Oil) to Biodiesel: A Review. Biotechnology Advances, 28, 500-518. http://dx.doi.org/10.1016/j.biotechadv.2010.03.002
[3]  Ngamcharussrivichai, C., Totarat, P. and Bunyakiat, K. (2008) Ca and Zn Mixed Oxide as a Heterogeneous Base Catalyst for Transesterification of Palm Kernel Oil. Applied Catalysis A: General, 341, 77-85.
http://dx.doi.org/10.1016/j.apcata.2008.02.020
[4]  Bai, H.-X., Shen, X.-Z., Liu, X.-H. and Liu, S.-Y. (2009) Synthesis of Porous CaO Microsphere and Its Application in Catalyzing Transesterification Reaction for Biodiesel. Transactions of Nonferrous Metals Society of China, 19, s674-s677. http://dx.doi.org/10.1016/S1003-6326(10)60130-6
[5]  Zabeti, M., Daud, W.M.A.W. and Aroua, M.K. (2009) Activity of Solid Catalysts for Biodiesel Production: A Review. Fuel Processing Technology, 90, 770-777. http://dx.doi.org/10.1016/j.fuproc.2009.03.010
[6]  Prescott, H.A., Li, Z., Kemnitz, E., Trunschke, A., Deutsch, J., Lieske, H. and Auroux, A. (2005) Application of Calcined Mg-Al Hydrotalcites for Michael Additions: An Investigation of Catalytic Activity and Acid-Base Properties. Journal of Catalysis, 234, 119-130.
http://dx.doi.org/10.1016/j.jcat.2005.06.004
[7]  Rives, V. (2002) Characterisation of Layered Double Hydroxides and Their Decomposition Products. Materials Chemistry and Physics, 75, 19-25. http://dx.doi.org/10.1016/S0254-0584(02)00024-X
[8]  Crepaldi, E.L. and Valim, J.B. (1998) Hidróxidos Duplos Lamelares: Síntese, Estrutura, Propriedades e Aplica??es. Química Nova, 21, 300-311. http://dx.doi.org/10.1590/S0100-40421998000300011
[9]  Vaccari, A. (1998) Preparation and Catalytic Properties of Cationic and Anionic Clays. Catalysis Today, 41, 53-71.
http://dx.doi.org/10.1016/S0920-5861(98)00038-8
[10]  Di Cosimo, J.I., Diez, V.K., Xu, M., Iglesia, E. and Apesteguia, C.R. (1998) Structure and Surface and Catalytic Properties of Mg-Al Basic Oxides. Journal of Catalysis, 178, 499-510.
http://dx.doi.org/10.1006/jcat.1998.2161
[11]  Xie, W., Peng, H. and Chen, L. (2006) Calcined Mg-Al Hydrotalcites as Solid Base Catalysts for Methanolysis of Soybean Oil. Journal of Molecular Catalysis A: Chemical, 246, 24-32.
http://dx.doi.org/10.1016/j.molcata.2005.10.008
[12]  Li, E., Xu, Z.P. and Rudolph, V. (2009) MgCoAl-LDH Derived Heterogeneous Catalysts for the Ethanol Transesterification of Canola Oil to Biodiesel. Applied Catalysis B: Environmental, 88, 42-49.
http://dx.doi.org/10.1016/j.apcatb.2008.09.022
[13]  Shumaker, J.L., Crofcheck, C., Tackett, S.A., Santillan-Jimenez, E., Morgan, T., Ji, Y., Crocker, M. and Toops, T.J. (2008) Biodiesel Synthesis Using Calcined Layered Double Hydroxide Catalysts. Applied Catalysis B: Environmental, 82, 120-130. http://dx.doi.org/10.1016/j.apcatb.2008.01.010
[14]  Gao, L., Teng, G., Xiao, G. and Wei, R. (2010) Biodiesel from Palm Oil via Loading KF/Ca-Al Hydrotalcite Catalyst. Biomass and Bioenergy, 34, 1283-1288. http://dx.doi.org/10.1016/j.biombioe.2010.03.023
[15]  Joint Committee on Power Diffraction Standards (1983) Powder Diffraction File Published by the International Center of Diffraction Data. 2nd Edition, Swarthmore.
[16]  Gelbard, G., Brès, O., Vargas, RM., Vielfaure, F. and Schuchardt, U.F.H. (1995) 1H Nuclear Magnetic Resonance Determination of the Yield of the Transesterification of Rapeseed Oil with Methanol. Journal of the American Oil Chemists’ Society, 72, 1239-1241. http://dx.doi.org/10.1007/BF02540998
[17]  Garcia, C.M. (2006) Transeterification of Vegetable Oils. Msc. Thesis, Universidade Estadual de Campinas, Campinas.
[18]  Frost, R.L., Palmer, S.J. and Spratt, H.J. (2009) Hydrotalcites and Their Role in Coordination of Anions in Bayer Liquors: Anion Binding in Layered Double Hydroxides. Journal of Thermal Analysis and Calorimetry, 95, 123-129.
[19]  Yu, C., Wang, C., Hsu, M. and Chyou, Y. (2011) Development of a Novel Ca/Al Carbonates for Medium-High Temperature CO2 Capture. Energy Procedia, 4, 787-794.
http://dx.doi.org/10.1016/j.egypro.2011.01.120
[20]  Chary, K.V.R., Kishan, G., Kumar, C.P., Sagar, G.V. and Niemantsverdriet, J.W. (2003) Characterization and Reactivity of Vanadium Oxide Catalysts Supported on Niobia. Applied Catalysis A: General, 245, 303-316.
http://dx.doi.org/10.1016/S0926-860X(02)00654-3
[21]  Kaneko, K. (1994) Determination of Pore Size and Pore Size Distribution: 1. Adsorbents and Catalysts. Journal of Membrane Science, 96, 59-89. http://dx.doi.org/10.1016/0376-7388(94)00126-X
[22]  Santilli, C.V. and Pulcinelli, S.H. (1993) Analise da Textura de Materiais Ceramicos a Partir das Isotermas de Adsor??o de Gases. Ceramica, 39, 11-16.
[23]  Sing, S.W. (1982) Reporting Physisorption Data for Gas/Solid System. Pure and Applied Chemistry, 54, 2201-2218.
[24]  Gervasini, A., Fenyvesi, J. and Auroux, A.A. (1997) Study of the Acidic Character of Modified Metal Oxide Surfaces Using the Test of Isopropanol Decomposition. Catalysis Letters, 43, 219-228.
http://dx.doi.org/10.1023/A:1018979731407
[25]  Díez, V.K., Apesteguía, C.R. and Di Cosimo, J.I. (2003) Effect of the Chemical Composition on the Catalytic Performance of MgyAlOx Catalysts for Alcohol Elimination Reactions. Journal of Catalysis, 215, 220-233.
[26]  Aramendia, M.A., Borau, V., Jimenez, C., Marinas, J.M., Porras, A. and Urbano, F.J. (1996) Magnesium Oxides as Basic Catalysts for Organic Processes: Study of the Dehydrogenation-Dehydration of 2-Propanol. Journal of Catalysis, 161, 829-838. http://dx.doi.org/10.1006/jcat.1996.0246
[27]  Leung, D.Y.C., Wu, X. and Leung, M.K.H. (2010) A Review on Biodiesel Production Using Catalyzed Transesterification. Applied Energy, 87, 1083-1095. http://dx.doi.org/10.1016/j.apenergy.2009.10.006

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