Preparation of biodiesel synthesis from cooked oil waste catalyzed by sodium hydrate and microwave
Corressponding author's email:
lannv@hcmute.edu.vnKeywords:
Cooked oil waste, Biodiesel, Microwave, Alkaline catalystAbstract
In this paper, cooked oil waste with high acid value was used for transesterification reac- tion to produce biodiesel. The reaction was enhanced simultaneously by NaOH catalyst and microwave power. Results shown that under the effect of the microwave, the conversion rate reached to an optimal value of 98.1% when reaction conditions were: methanol:oil ratio 12:1; weight concentration of NaOH catalyst 0.8%; reaction system temperature 65oC; reaction pe- riod 02 minutes and microwave power 600W. This was a significantly high conversion yield although it was obtained within only 02 minutes. Also, the yield was high enough to satisfy the required conversion rate of 96.5% (National Taiwan standard, CNS-15072). Besides, the reaction rate constant increased from 0.635[min-1] to 2.369[min-1] when reaction temperature increased from 55oC to 65oC, respectively. The calculated activation energy for the transesteri- fication reaction was 123.14kJ/mol.
Downloads: 0
References
Lopez DE, Goodwin JG, Bruce DA, “Transesterification of triacetin with methanol on solid acid and base catalysts”, Applied Catalysis A: General, 295: 97-105, (2005).
Xie W, Huang X, Li H, “Soybean oil methyl esters preparation using NaX zeolites loaded with KOH as a heterogeneous catalyst. Bioresource Technology, 98: 936-939, (2007).
Reddy C.R.V., Oshel R., Verkade J.G., “Room-temperature conversion of soybean oil and poultry fat to biodiesel catalyzed by nanocrystalline calcium oxides”, Energy & Fuel, 20:1310-1314, (2006).
Y. Zhang, M. A. Dube, D. D. McLean, and M. Kates, “Biodiesel Production from Waste Cooking Oil: 1. Process Design and Technological Assessment”, Bioresource Technol- ogy, 89: 1–16, (2003).
J. M. Marchetti, V. U. Miguel, and A. F. Errazu, “Heterogeneous Esterification of Oil with High Amount of Free Fatty Acids”, Fuel, 86: 906–910, (2005).
K. J. Harrington, and C. D’Arey-Evans, “Transesterification in Situ of Sunflower Seed Oil,” Industrial and Engineering Chemistry Product Research and Development, 24: 314- 318, 1985).
M. Charoenchaitrakool, and J. Thienmethangkoon, “Statistical optimization for biodiesel production from waste frying oil through two-step catalyzed process”, Fuel Processing Technology, 92: 112–118, (2011).
[N. Azcan, and A. Danisman, “Alkali Catalyzed Transesterification of Cottonseed Oil by Microwave Irradiation”, Fuel, 86: 2639–2644, (2007).
J. Hernando, P. Leton, M. P. Matia, J. L. Novella, and J. Alvarez-Builla, “Biodiesel and FAME Synthesis Assisted by Microwaves: Homogeneous Batch and Flow Processes”, Fuel, 86: 1641–1644, (2007).
Barnard, T. M., Leadbeater, N. E., Boucher, M. B., Stencel, L. M., Wilhite, B. A. (2007), “Continuous-Flow Preparation of Biodiesel Using Microwave Heating”, Energy Fuels, 21: 1777-1781, (2007).
Leadbeater, N. E., Stencel, L. M., “Fast, Easy Preparation of Biodiesel Using Microwave Heating”, Energy Fuels, 20: 2281-2283, (2006).
Hsiao MC, Lin CC, Chang YH, Chen LC, “Ultrasonic mixing and closed microwave irradiation-assisted transesterification of soybean oil”, Fuel, 89:3618-3622, (2010).
Hsiao MC, Lin CC, Chang YH, “Microwave irradiation-assisted transesterification of soybean oil to biodiesel catalyzed by nanopowder calcium oxide, Fuel, 90: 1963-1967, (2011).
Hanh HD, Dong NT, Okitsu K, Nishmura R, Maeda Y, “Biodiesel production through transesterification of triolein with various alcohols in an ultrasonic field”, Renewable Energy, 34 (3): 766-768, (2009).
Colucci JA, Borrero EE, Alape F., “Biodiesel from an alkaline transesterification reaction of soybean oil using ultrasonic mixing”, Journal of the American Oil Chemists’ Society, 82: 525-530, (2005).
Hanh HD, Dong NT, Starvarache C, Okitsu K, Maeda Y, Nishimura R., “Methanolysis of triolein by low frequency ultrasonic irradiation”, Energy Conversion and Management, 49: 276-280, (2008).
Tan KT, Lee KT, “Production of FAME by palm oil transesterification via supercritical methanol technology”, Biomass Bioenergy, 33: 1096-1099, (2009).
Satyanarayana M, Muraleedharan C, “A comparative study of vegetable oil methyl esters (Biodiesels)”, Energy, 36: 2129-2137 (2011).
Koc AB, “Ultrasonic monitoring of glycerol settling during transesterification of soybean oil”, Bioresource Technology, 100: 19-24, (2009).
Chen YH, Tang TC, Chiang TH, Huang BY, Chang CY, Chiang PC, Shie JL, Matthias F and Chen LY, “A Complementary Biodiesel Blend from Soapnut Oil and Free Fatty Ac- ids”, Energies 5: 3137-3148, (2012).
Downloads
Published
How to Cite
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright © JTE.
