Document Type : Original Article

Authors

1 Ethiopian Forestry Development, Forest Products Innovation Center, Addis Ababa, Ethiopia.

2 Addis Ababa University, Addis Ababa Institute of Technology, School of Chemical and Bioengineering, King George VI St., Addis Ababa, Ethiopia.

3 Ethiopian Forestry Development, Forest Products Innovation Research Directorate, Addis Ababa, Ethiopia

Abstract

Biodiesel has been considered as biodegradable, green, cleaner, alternative, renewable and eco-friendly energy source. It can supersede petrol-diesel and help to solve challenges accompanied with energy crisis, socio-economic, environmental pollution, climate change and global warming. Hybridization of vegetable oils to synthesize biodiesel while improving fuel quality has not been studied extensively. Thus, the aim of this study was hybridization of M. stenopetala and A. indica seed oil to synthesize biodiesel and thereby improving the fuel quality. Response Surface Methodology, Box-Behnken Design, was employed in experimental design and result analysis. Oil mixing composition, reaction time and catalyst dose were selected as factors of study with three levels: low (-1), medium (0) and high (+1). Other parameters, temperature, alcohol to oil molar ratio and mixing speed were kept constant. The oil hybrid compositions were: M75N25 (75%v/v M. stenopetala oil and 25%v/v A. indica oil), M50N50 (50%v/v M. stenopetala oil and 50%v/v A. indica oil) and M25N75 (25%v/v M. stenopetala oil and 75%v/v A. indica seed oil) with their corresponding biodiesel, BM75N25, BM50N50, BM25N75 respectively. The catalyst dose of: 1, 1.5 and 2 %w/v potassium hydroxide flake; and reaction time of 20 min, 40 min and 60 min were considered as variables of study. Fifteen experimental runs were conducted with three levels for each factor. Quadratic model was developed with statistical significance, P - value < 0.0001. Analysis of variance (ANOVA) and determination of coefficients were used to evaluate the model quality, where the main comparison was conducted at 5% Least Significant Difference.

Keywords

[1] “Organization of the Petroleum Exporting Countries (OPEC),” World Oil Outlook, Vienna, Austria, 2011, ISBN 978-3-9502722-1-5.
 
[2] A.B. Yahya, “Biodiesel production from Moringa Oleifera seeds using heterogeneous acid and alkali catalyst,” Diss. UMP., 2013.
 
[3] A.A. Ayoola, K.F. Hymore, and C.A. Omonhinmin, “Optimization of biodiesel production from selected waste oils using response surface methodology,” Biotechnol, Vol. 16, pp. 1-9, 2017.
 
[4] C. Carraretto, A. Macor and A. Mirandola, “Biodiesel as alternative fuel: Experimental analysis and energetic evaluation,” J Energy, Vol. 29, pp. 2195-2211, 2004.
 
[5] S. Singh and D. Singh, “Biodiesel production through the use of different sources and characterization of oils and their esters as the substitute of diesel: A review.” Renewable and Sustainable Energy Reviews, Vol. 14, pp. 200-216, 2010, doi: 10.1016/j.rser.2009.07.017.
 
[6] B.K. Barnwal and M.P. Sharma, “Prospects of Biodiesel production from vegetables oils in India,” Journal of Renewable Energy and Sustainable Energy Review, Vol. 9, pp. 363-378, 2005.
 
[7] P.V. Amish, N. Subrahmanyam, and A.P. Payal, “Production of biodiesel through trans- esterification of jatropha oil using KNO3/Al2O3,” Fuel, Vol. 88, pp. 625-628, 2009.
 
[8] M. Balat, “Political, economic and environmental impacts of biomass-based hydrogen,” Int J Hydrogen Energy, Vol. 34, pp. 3589-3603, 2009.
 
[9] Y. Arifn, E. Tanudjaja, A. Dimyati, and R. Pinontoan, “A second generation biofuel from cellulosic agricultural by-product fermentation using clostridium species for electricity generation,” Energy Procedia, Vol. 47, pp. 310-315, 2014.
 
[10] E. Kirtay, “Recent advances in production of hydrogen from biomass,” Energy Convers Manage, Vol. 52, pp. 1778-1789, 2011.
 
[11] S.A. Hossain, B.M. Salleh, A. Boyce, and A.N. Chowdhury, “Biodiesel Fuel Production from Algae as Renewable Energy, “American Journal of Biochemistry and Biotechnology, Vol. 4, pp. 250-251, 2008.
 
[12] “Federal Democratic Republic of Ethiopia (FDRE), Growth and Transformation Plan (2010/11-2014/15), Addis Ababa,” 2010.
 
[13] Y. P. Upadhyay and R.B. Sharma, “Biodiesel: An alternative fuel and its emission effect,” Journal of Mechanical and Civil Engineering, Vol. 5, No. 3, pp. 1-4, 2013.
 
[14] V. J. Gerpen, “Biodiesel processing and production,” Fuel Processing Technology, Vol. 86, pp. 1097-1107, 2005, doi: 10.1016/j.fuproc.2004.11.005.
 
[15] S.D. Romano, S. E. González and M.A. Laborde, “Biodiesel In: Combustibles Alternatives, 2nd Edn. Ediciones Cooperativas, Buenos Aires, 2006.
 
[16] “American Standards of Testing Materials, Standard specification for biodiesel fuel (B100) blend stock for distillate fuels. In: Annual Book of ASTM Standards,” ASTM International, West Conshohocken, ASTM D6751-08, 2008a.
 
[17] Y.D. Domínguez, D.T. García, L.G. Pérez, E.F. Santana, M.R. Macias, T. Fischer and R.P. Rodríguez, “Rheological behavior and properties of biodiesel and vegetable oil from Moringa Oleifera Lam,” AFINIDAD, Vol. 76, pp. 587, 2019.
 
[18] G. Knothe, “Improving biodiesel fuel properties by modifying fatty ester composition,” Energy Environment Science, Vol. 2, No. 7, pp. 759-766, 2009.
 
[19] A.M. Liaquat, A.M. Kalam, H.H. Masjuki, and M.H. Jayed, “Potential emissions reduction in road transport sector using biofuel in developing countries,” Atmospheric Environment, Vol. 44, No. 32, pp. 3869-3877, 2010.
 
[20] U. Rashid, F. Anwar and B.R. Moser, “Moringa Oleifera oil: A possible source of Biodiesel,” Bioresour Technol, Vol. 99, pp. 8175-8179, 2008.
 
[21] G. Kafuku, M.K. Lam, J. Kansedo, K.T. Lee, and M. Mbarawa, “Heterogeneous catalyzed biodiesel production from Moringa Oleifera oil,” Fuel Process Technol, Vol. 91, pp. 1525-1529, 2010.
 
[22] G. Balaji and M. Cheralathan, “Potential of various sources for biodiesel production, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects,” Vol. 35, No. 9, pp. 831- 839, 2013.
 
[23] N.K. Patel, P.S. Nagar, and S.N. Shah, “Identification of non-edible seeds as potential feedstock for the production and application of bio-diesel,” Energy and power, Vol. 3, No. 4, pp. 67-78, 2013.
 
[24] M. Bockish, “Extraction of vegetable oils”: Fats and oils handbook Champaign, IL: AOCS Press, 151, 1998. 
 
[25]  A.O. Aliyu, J.M. Nwaedozie, and A. Ahmed, “Quality Parameters of Biodiesel Produced from Locally Sourced Moringa oleifera and Citrullus colocynthis L. Seeds Found in Kaduna, Nigeria,” International Research Journal of Pure & Applied Chemistry, Vol. 3, No. 4, pp. 377-390, 2013.
 
[26] N. Aslan, and Y. Cebeci, “Application of Box-Behnken design and response surface methodology for modeling of some,” Turkish coals Fuel, Vol. 86, pp. 90-97, 2007.
 
[27] M. Hanumanth, O.D. Hebbal, and M.C. Navindgi, “Extraction of Biodiesel from Vegetable Oils and Their Comparisons,” International Journal of Advanced Scientific Research and Technology, Vol. 2, pp. 2, 2012.
 
[28] “Liquid petroleum products-Fatty acid methyl esters (FAME) for use in diesel engines and heating applications - Requirements and test methods,” European Union’s EN 14214 Standards Test Method, 2019-05, 2019.
 
[29] “American Society for Testing Materials, Standard Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method,” ASTM D1298.
 
[30] “Standard test method for flash and fire points by Cleveland open cup tester. American Society for Testing and Materials, Pennsylvania,” ASTM D92-05, 2005.
 
[31] “Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb CalorimeteR,” ASTM D240-17, 2017.
 
[32] “Standard test method for kinematic viscosity of transparent and opaque liquids (and the calculation of dynamic viscosity). American Society for Testing and Materials, Philadelphia,” ASTM, D445.
 
[33] “Standard Test Method for Cetane Number of Diesel Fuel Oil,” ASTM D613.
 
[34] “Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration,” ASTM D664.
 
[35] “Standard Test Method for Pour Point of Crude Oils,” ASTM D5853.
 
[36] M. Tariq, M. Sirajuddin, and S. Ali, “Physico-chemical Characterization of Biodiesel from Vegetable Oils,” Germany, Saarbrücken: Lambert Academic, 2015.
 
[37] S. Donnell, I. Demshemino, M. Yahaya, I. Nwadike, and L. Okoro, “A review on the spectroscopic analyses of biodiesel,” European International Journal of Science and Technology, Vol. 2, pp. 137-146, 2013.
 
[38] S. K. Banik, M. A. Rouf, T. Rabeya, M. Khanam, S.I. Sajal, S. B. Sabur, and M.R. Islam, “Production of biodiesel from neem seed oil,” Bangladesh J. Sci. Ind. Res. Vol. 53, No. 3, pp. 211-218, 2018.
 
[39] M.A. Dube, S. Zheng, D.D. Mclean, and M.J. Kates, “Comparison of attenuated total reflectance- Fourier Transformation Infrared (FTIR) spectroscopy and GPC for monitoring biodiesel production,” Journal of the American Oil Chemist Society, Vol. 81, pp. 599-603, 2004.
 
[40] A.Y. Oyerinde and E.I. Bello, “Use of Fourier Transformation Infrared (FT-IR) Spectroscopy for Analysis of Functional Groups in Peanuts Oil Biodiesel and Its Blends,” British Journal of Applied Science and Technology, Vol. 13, No. 3, pp. 1-14, 2016.
 
[41] “Standard test method for cloud point of petroleum products,” American Society for Testing and Materials, ASTM, D2500, Pennsylvania, 2002.
 
[42] “Standard Test Method for Water and Sediment in Middle Distillate Fuels by Centrifuge,” American Society for Testing Materials, ASTM D2709-96, 2006.
 
[43] “Standard Test Method for Determination of Carbon Residue (Micro Method),” American Society for Testing Materials, ASTM D4530, 2003.
 
[44] “Fat and oil derivatives–Fatty Acid Methyl Esters–Determination of methanol content,” European Union’s, EN 14110, 2019.
 
 [45] “Standard Test Method for Determination of Total Monoglycerides, Total Diglycerides, Total Triglycerides, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography,” American Society for Testing aterials, ASTM D6584, 2021.
 
[46] “Fat and oil derivatives–Fatty Acid Methyl Esters (FAME)–Determination of oxidation stability,” European Union’s EN 14112, 2020.
 
[47] “Standard Test Method for Determination of Additive Elements in Lubricating Oils by Inductively Coupled Plasma Atomic Emission Spectrometry,” American Society for Testing Materials, ASTM D4951, 2002.
 
[48] “Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons,” American Society for Testing Materials, ASTM D5453, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence.
 
[49] “Fat and oil derivatives–Fatty acid methyl ester (FAME)–Determination of Ca, K, Mg, and Na content by optical emission spectral analysis with inductively coupled plasma,”, European Union’s EN 14538, 2006.
 
[50] E. Andinet, A. Araya, A.  Nigist, and L. Peter, “Moringa stenopetala seed oil as a potential feedstock for Biodiesel production in Ethiopia,” Department of Chemistry, Addis Ababa University, 2010. DOI: 10.1039/b916500b.
 
[51] A. Adepoju and O. Olawale, “Optimization and Predictive Capability of RSM Using Controllable Variables in Azadiracha Indica Oilseeds Extraction Process,” International Journal of Chemistry and Materials Research, Vol. 3, No. 1, pp. 1-10, 2015.