Biodiesel production using alumina-supported calcium oxide: An optimization study

Zabeti, M. and Daud, W.M.A.W. and Aroua, M.K. (2010) Biodiesel production using alumina-supported calcium oxide: An optimization study. Fuel Processing Technology, 91 (2). pp. 243-248. ISSN 0378-3820, DOI

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This study consists of the optimization of the methyl ester yields produced via transesterification of palm oil using CaO/Al2O3 solid base catalyst. Response Surface Methodology (RSM) in combination with Central Composite Design (CCD) was used to optimize the operating parameters. Alcohol/oil molar ratio, catalyst content in the reaction medium and reaction temperature were chosen as the variables and the response selected was the amount of methyl ester yields. All the reactions were performed in a batch laboratory scale reactor for 5 h; the optimum reaction conditions obtained were approximately alcohol/oil molar ratio of 12:1, catalyst content of 6 wt. and reaction temperature of 65 °C. The results from ICP-MS exhibited insignificant leaching of the CaO active species into the reaction medium and the reusability of the catalyst was successfully tested in two subsequent cycles. Under certain reaction conditions the glycerol obtained was almost colorless.

Item Type: Article
Additional Information: Cited By (since 1996):34 Export Date: 21 April 2013 Source: Scopus CODEN: FPTED :doi 10.1016/j.fuproc.2009.10.004 Language of Original Document: English Correspondence Address: Daud, W.M.A.W.; Chemical Engineering Department, Faculty of Engineering, University Malaya, 50603 Kuala Lumpur, Malaysia; email: References: Demirbas, A., importance of biodiesel as transportation fuel (2007) Energy Policy, 35, pp. 4661-4670; Szybist, J.P., Song, J., Alam, M., Boehman, A.L., biodiesel combustion, emissions and emission control (2007) Fuel Processing Technology, 88, pp. 679-691; Graboski, M.S., McCormick, R.L., combustion of fat and vegetable oil derived fuels in diesel engines (1998) Progres Energy Combustion Science, 24, pp. 125-164; Kulkarni, M.G., Dalai, A.K., Bakhshi, N.N., transesterification of canola oil in mixed methanol/ethanol system and use of esters as lubricity additive (2007) Bioresource Technology, 98, pp. 2027-2033; Baroutian, S., Aroua, M.K., Raman, A.A.A., Sulaiman, N.M.N., density of palm oil-based methyl ester (2008) Journal of Chemical and Engineering Data, 53, pp. 877-880; Lo �pez, D.E., Goodwin Jr., J.G., Bruce, D.A., Lotero, E., transesterification of triacetin with methanol on solid acid and base catalysts (2005) Applied Catalysis. A, General, 295, pp. 97-105; Vicente, G., Martínez, M., Aracil, J., integrated biodiesel production: a comparison of different homogeneous catalysts systems (2004) Bioresource Technology, 92, pp. 297-305; Sivozhelezov, V., Bruzzese, D., Pastorino, L., Pechkova, E., Nicolini, C., Increase of catalytic activity of lipase towards olive oil by Langmuir-film immobilization of lipase (2009) Enzyme and Microbial Technology, 44, pp. 72-76; Ngamcharussrivichai, C., Wiwatnimit, W., Wangnoi, S., modified dolomites as catalysts for palm kernel oil transesterification (2007) Journal of Molecular Catalysis. A, Chemical, 276, pp. 24-33; Kaita, J., Mimura, T., Fukuoka, N., Hattori, Y. catalyst for transesterification, US Patent 6 407 269 B2, 2001Yang, Z., Xie, W., soybean oil transesterification over zinc oxide modified with alkali earth metals (2007) Fuel Processing Technology, 88, pp. 631-638; Zabeti, M., Daud, W.M.Ai.W., Aroua, M.K., Activity of solid catalysts for biodiesel production: a review (2009) Fuel Processing Technology, 90, pp. 770-777; Demirbas, A., biodiesel from sunflower oil in supercritical methanol with calcium oxide (2007) Energy Conversion and Management, 48, pp. 937-941; Granados, M.L., Poves, M.D.Z., Alonso, D.M., Mariscal, R., Galisteo, F.C., Moreno-Tost, R., Santamaría, J., Fierro, J.L.G., Biodiesel from sunflower oil by using activated calcium oxide (2007) Applied Catalysis. B, Environmental, 73, pp. 317-326; Benjapornkulaphong, S., Ngamcharussrivichai, C., Bunyakiat, K., Al2O3-supported alkali and alkali earth metal oxides for transesterification of palm kernel oil and coconut oil (2009) Chemical Engineering Journal, 145, pp. 468-474; Albuquerque, M.C.G., Jiménez-Urbistondo, I., Santamaría-González, J., Mérida-Robles, J.M., Moreno-Tost, R., Rodríguez-Castellón, E., Jiménez-López, A., Maireles-Torres, P., CaO supported on mesoporous silicas as basic catalysts for transesterification reactions (2008) Applied Catalysis. A, General, 334, pp. 35-43; Zabeti, M., Daud, W.M.Ai.W., Aroua, M.K., Optimization of the activity of CaO/Al2O3 catalyst for biodiesel production using response surface methodology (2009) Applied Catalysis. A, General, 366, pp. 154-159; David, F., Sandra, P., Wylie, P.L., (2003) Improving the analysis of fatty acid methyl esters using retention time locked methods and retention time databases, Agilent Application Note publication 5988-5871EN; Vicente, G., Martínez, M., Aracil, J., Optimization of integrated biodiesel production, part I. A study of the biodiesel purity and yields (2007) Bioresource Technology, 98, pp. 1724-1733; Liu, X., He, H., Wang, Y., Zhu, S., Transesterification of soybean oil to biodiesel using SrO as a solid base catalyst (2007) Catalysis Communications, 8, pp. 1107-1111; Xie, W., Peng, H., Chen, L., Transesterification of soybean oil catalyzed by potassium loaded on alumina as a solid-base catalyst (2006) Applied Catalysis. A, General, 300, pp. 67-74; Xie, W., Peng, H., Chen, L., Calcined Mg-Al hydrotalcites as solid base catalysts for methanolysis of soybean oil (2006) Journal of Molecular Catalysis. A, Chemical, 246, pp. 24-32
Uncontrolled Keywords: Biodiesel; Calcium oxide; Catalyst leaching; Optimization; Palm oil; Active species; Alumina-supported; Biodiesel production; Central composite designs; Laboratory-scale reactor; Methyl esters; Molar ratio; Operating parameters; Optimization studies; Optimum reaction conditions; Reaction conditions; Reaction medium; Reaction temperature; Response Surface Methodology; Solid base catalysts; Calcium; Calcium alloys; Catalysis; Esterification; Esters; Glycerol; Inductively coupled plasma mass spectrometry; Leaching; Lime; Reusability; Vegetable oils; Catalysts.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 04:43
Last Modified: 08 Nov 2017 08:42

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