Vol 66 No 1 (2021): Journal of the Chilean Chemical Society
Reviews
Published
February 9, 2021
Keywords
- biodiesel,
- transesterification,
- glycerolysis,
- biodiesel feedstocks
How to Cite
El-gharbawy, A., Sadik, W., Sadek, O., & Kasaby, M. (2021). A REVIEW ON BIODIESEL FEEDSTOCKS AND PRODUCTION TECHNOLOGIES. Journal of the Chilean Chemical Society, 66(1), 5098-5109. Retrieved from https://www.jcchems.com/index.php/JCCHEMS/article/view/1636
Copyright (c) 2021 SChQ
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Abstract
Biodiesel is a long-chain fatty acid ester produced from renewable and biological resources such as used cooking, animal fat, vegetable oil, and algae. Biodiesel is a renewable and clean fuel as it reduces carbon monoxide, carbon dioxide, hydrocarbons, and particulate matter emissions compared with petroleum-based diesel fuel. Production of biodiesel from renewable resources is done through the transesterification reaction at which the organic group (alkyl) of alcohol is substituted with the organic group of a triglyceride– the main component of the feedstock –producing fatty acid alkyl ester (biodiesel) and crude glycerol. Biodiesel can be used in pure form (B100) or may be blended with petroleum diesel at any concentration if its specifications is identical to the international standard specifications provided by American standard for testing materials (ASTM) or EN14214 in the European Union for alternative fuels. Biodiesel can be used as a fuel in many applications such as generators, diesel vehicles, heaters, and boilers. In this paper, the different types of biodiesel feedstocks, feedstocks treatment methods, and biodiesel production technologies are reviewed and summarized.
References
since it is a fast reaction, low toxic, low cost and increases the economics of the biodiesel industry
References
1. Kirubakaran, M. and V.A.M. Selvan, A comprehensive review of low cost biodiesel production from waste chicken fat. Renewable and Sustainable Energy Reviews, 2018. 82: p. 390-401.
2. Rouhany, M. and H. Montgomery, Global Biodiesel Production: The State of the Art and Impact on Climate Change, in Biodiesel. 2019, Springer. p. 1-14.
3. Mishra, V.K. and R. Goswami, A review of production, properties and advantages of biodiesel. Biofuels, 2018. 9(2): p. 273-289.
4. Živković, S. and M. Veljković, Environmental impacts the of production and use of biodiesel. Environmental Science and Pollution Research, 2018. 25(1): p. 191-199.
5. Giakoumis, E.G., Analysis of 22 vegetable oils’ physico-chemical properties and fatty acid composition on a statistical basis, and correlation with the degree of unsaturation. Renewable energy, 2018. 126: p. 403-419.
6. El-Gharbawy, A.S.A.A., PRODUCTION OF BIODIESEL FROM NON EDIBLE VEGETABLE OIL. 2016
7. Azizian, H. and J.K. Kramer, A rapid method for the quantification of fatty acids in fats and oils with emphasis on trans fatty acids using Fourier transform near infrared spectroscopy (FT‐NIR). Lipids, 2005. 40(8): p. 855-867.
8. Balat, M., Potential alternatives to edible oils for biodiesel production–A review of current work. Energy conversion and management, 2011. 52(2): p. 1479-1492.
9. Gui, M.M., K. Lee, and S. Bhatia, Feasibility of edible oil vs. non-edible oil vs. waste edible oil as biodiesel feedstock. Energy, 2008. 33(11): p. 1646-1653.
10. Rincón, L., J. Jaramillo, and C. Cardona, Comparison of feedstocks and technologies for biodiesel production: An environmental and techno-economic evaluation. Renewable Energy, 2014. 69: p. 479-487.
11. Ambat, I., V. Srivastava, and M. Sillanpää, Recent advancement in biodiesel production methodologies using various feedstock: A review. Renewable and Sustainable Energy Reviews, 2018. 90: p. 356-369.
12. Demirbas, A., Comparison of transesterification methods for production of biodiesel from vegetable oils and fats. Energy conversion and management, 2008. 49(1): p. 125-130.
13. Leung, D.Y., X. Wu, and M. Leung, A review on biodiesel production using catalyzed transesterification. Applied energy, 2010. 87(4): p. 1083-1095.
14. Likozar, B. and J. Levec, Transesterification of canola, palm, peanut, soybean and sunflower oil with methanol, ethanol, isopropanol, butanol and tert-butanol to biodiesel: Modelling of chemical equilibrium, reaction kinetics and mass transfer based on fatty acid composition. Applied Energy, 2014. 123: p. 108-120.
15. Demirbas, A., Biodiesel from waste cooking oil via base-catalytic and supercritical methanol transesterification. Energy conversion and management, 2009. 50(4): p. 923-927.
16. Elgharbawy, A.S.A.A., cost analysis for biodiesel production from waste cooking oil plant in Egypt. International Journal of Smart Grid-ijSmartGrid, 2017. 1(1): p. 16-25.
17. Elgharbawy, A.S., et al., Glycerolysis treatment to enhance biodiesel production from low-quality feedstocks. Fuel, 2021. 284: p. 118970.
18. Ramadhas, A.S., S. Jayaraj, and C. Muraleedharan, Biodiesel production from high FFA rubber seed oil. Fuel, 2005. 84(4): p. 335-340.
19. Van Gerpen, J., Biodiesel processing and production. Fuel processing technology, 2005. 86(10): p. 1097-1107.
20. Atadashi, I., et al., Production of biodiesel using high free fatty acid feedstocks. Renewable and sustainable energy reviews, 2012. 16(5): p. 3275-3285.
21. Knothe, G., J.H. Van Gerpen, and J. Krahl, The biodiesel handbook. Vol. 1. 2005: AOCS press Champaign, IL.
22. Anderson, E., et al., Glycerin esterification of scum derived free fatty acids for biodiesel production. Bioresource technology, 2016. 200: p. 153-160.
23. Tan, H., A.A. Aziz, and M. Aroua, Glycerol production and its applications as a raw material: A review. Renewable and Sustainable Energy Reviews, 2013. 27: p. 118-127.
24. Kombe, G.G., et al., Pre-treatment of high free fatty acids oils by chemical re-esterification for biodiesel production—a review. Advances in Chemical Engineering and Science, 2013. 2013.
25. Felizardo, P., et al., Study on the glycerolysis reaction of high free fatty acid oils for use as biodiesel feedstock. Fuel Processing Technology, 2011. 92(6): p. 1225-1229.
26. Dı́az, I., et al., Synthesis of MCM-41 materials functionalised with dialkylsilane groups and their catalytic activity in the esterification of glycerol with fatty acids. Applied Catalysis A: General, 2003. 242(1): p. 161-169.
27. Sani, Y., W. Daud, and A. Abdul Aziz, Biodiesel feedstock and production technologies: Successes, challenges and prospects. Biodiesel-Feedstocks, Production, and Applications, 2012. 10: p. 52790.
28. Gebremariam, S. and J. Marchetti, Economics of biodiesel production. Energy Conversion and Management, 2018. 168: p. 74-84.
29. Gnanaprakasam, A., et al., Recent strategy of biodiesel production from waste cooking oil and process influencing parameters: a review. Journal of Energy, 2013. 2013.
30. Bhuiya, M., et al., Second generation biodiesel: potential alternative to-edible oil-derived biodiesel. Energy Procedia, 2014. 61: p. 1969-1972.
31. Pragya, N., K.K. Pandey, and P. Sahoo, A review on harvesting, oil extraction and biofuels production technologies from microalgae. Renewable and Sustainable Energy Reviews, 2013. 24: p. 159-171.
32. Karmakar, A., S. Karmakar, and S. Mukherjee, Properties of various plants and animals feedstocks for biodiesel production. Bioresource technology, 2010. 101(19): p. 7201-7210.
33. Riazi, M. and D. Chiaramonti, Biofuels production and processing technology. 2017: CRC Press.
34. Sumathi, S., S. Chai, and A. Mohamed, Utilization of oil palm as a source of renewable energy in Malaysia. Renewable and sustainable energy reviews, 2008. 12(9): p. 2404-2421.
35. Demirbas, A., Importance of biodiesel as transportation fuel. Energy policy, 2007. 35(9): p. 4661-4670.
36. Baskar, G. and R. Aiswarya, Trends in catalytic production of biodiesel from various feedstocks. Renewable and Sustainable Energy Reviews, 2016. 57: p. 496-504.
37. Demirbas, A., et al., Biodiesel production from non-edible plant oils. Energy Exploration & Exploitation, 2016. 34(2): p. 290-318.
38. Banković-Ilić, I.B., O.S. Stamenković, and V.B. Veljković, Biodiesel production from non-edible plant oils. Renewable and Sustainable Energy Reviews, 2012. 16(6): p. 3621-3647.
39. Jansri, S., et al., Kinetics of methyl ester production from mixed crude palm oil by using acid-alkali catalyst. Fuel processing technology, 2011. 92(8): p. 1543-1548.
40. Acquaye, A.A., et al., Biofuels and their potential to aid the UK towards achieving emissions reduction policy targets. Renewable and Sustainable Energy Reviews, 2012. 16(7): p. 5414-5422.
41. Thamsiriroj, T. and J. Murphy, The impact of the life cycle analysis methodology on whether biodiesel produced from residues can meet the EU sustainability criteria for biofuel facilities constructed after 2017. Renewable Energy, 2011. 36(1): p. 50-63.
42. Akubude, V., K. Nwaigwe, and E. Dintwa, Production of biodiesel from microalgae via nanocatalyzed transesterification process: A review. Materials Science for Energy Technologies, 2019. 2(2): p. 216-225.
43. Khan, S., et al., Biodiesel production from algae to overcome the energy crisis. HAYATI Journal of Biosciences, 2017. 24(4): p. 163-167.
44. Milledge, J.J. and S. Heaven, A review of the harvesting of micro-algae for biofuel production. Reviews in Environmental Science and Bio/Technology, 2013. 12(2): p. 165-178.
45. Hayyan, A., et al., Reduction of high content of free fatty acid in sludge palm oil via acid catalyst for biodiesel production. Fuel Processing Technology, 2011. 92(5): p. 920-924.
46. Chai, M., et al., Esterification pretreatment of free fatty acid in biodiesel production, from laboratory to industry. Fuel processing technology, 2014. 125: p. 106-113.
47. Kara, K., et al., Biodiesel production from waste fish oil with high free fatty acid content from Moroccan fish-processing industries. Egyptian Journal of Petroleum, 2018. 27(2): p. 249-255.
48. Sianipar, R.N.R., D. Ariyani, and I.F. Nata, Conversion of palm oil sludge to biodiesel using alum and KOH as catalysts. Sustainable Environment Research, 2017. 27(6): p. 291-295.
49. Marchetti, J. and A. Errazu, Esterification of free fatty acids using sulfuric acid as catalyst in the presence of triglycerides. Biomass and Bioenergy, 2008. 32(9): p. 892-895.
50. Thaiyasuit, P., K. Pianthong, and I. Worapun, Acid esterification-alkaline transesterification process for methyl ester production from crude rubber seed oil. Journal of oleo science, 2012. 61(2): p. 81-88.
51. Sadaf, S., et al., Biodiesel production from waste cooking oil: an efficient technique to convert waste into biodiesel. Sustainable Cities and Society, 2018. 41: p. 220-226.
52. García Martín, J.F., et al., Esterification of Free Fatty Acids with Glycerol within the Biodiesel Production Framework. Processes, 2019. 7(11): p. 832.
53. Bhosle, B. and R. Subramanian, New approaches in deacidification of edible oils––a review. Journal of Food Engineering, 2005. 69(4): p. 481-494.
54. Fregolente, P.B.L., et al., Monoglycerides and diglycerides synthesis in a solvent-free system by lipase-catalyzed glycerolysis, in Biotechnology for Fuels and Chemicals. 2008, Springer. p. 285-292.
55. Sousa, L.L., I.L. Lucena, and F.A.N. Fernandes, Transesterification of castor oil: Effect of the acid value and neutralization of the oil with glycerol. Fuel Processing Technology, 2010. 91(2): p. 194-196.
56. Binhayeeding, N., S. Klomklao, and K. Sangkharak, Utilization of waste glycerol from biodiesel process as a substrate for mono-, di-, and triacylglycerol production. Energy Procedia, 2017. 138: p. 895-900.
57. Mostafa, N., A. Maher, and W. Abdelmoez, Production of mono-, di-, and triglycerides from waste fatty acids through esterification with glycerol. Advances in Bioscience and Biotechnology, 2013. 4(09): p. 900.
58. Hermida, L., A.Z. Abdullah, and A.R. Mohamed, Synthesis of monoglyceride through glycerol esterification with lauric acid over propyl sulfonic acid post-synthesis functionalized SBA-15 mesoporous catalyst. Chemical Engineering Journal, 2011. 174(2-3): p. 668-676.
59. Gole, V.L. and P.R. Gogate, Intensification of glycerolysis reaction of higher free fatty acid containing sustainable feedstock using microwave irradiation. Fuel processing technology, 2014. 118: p. 110-116.
60. Megawati, M., et al., The Kinetics of Calcium Oxide Catalyzed Esterification of Glycerol with Free Fatty Acids Using Pseudo-homogeneous Model Approach. Reaktor. 18(1): p. 1-6.
61. Kombe, G.G., et al., Low temperature glycerolysis as a high FFA pre-treatment method for biodiesel production. Advances in Chemical Engineering and Science, 2013. 2013.
62. Kombe, G.G., Re-esterification of high free fatty acid oils for biodiesel production. Biofuels, 2015. 6(1-2): p. 31-36.
63. Supardan, M.D., Y. Meldasari, and Y. Annisa. Glycerolysis for Lowering Free FattyAcid of Waste Cooking Oil. in Proceedings of The Annual International Conference, Syiah Kuala University-Life Sciences & Engineering Chapter. 2015.
64. Mustapha, W., Effect of Co-solvent Addition on Glycerolysis of Waste Cooking Oil.
65. Rashid, U., et al., Production of sunflower oil methyl esters by optimized alkali-catalyzed methanolysis. Biomass and bioenergy, 2008. 32(12): p. 1202-1205.
66. Varanda, M.G., G. Pinto, and F. Martins, Life cycle analysis of biodiesel production. Fuel Processing Technology, 2011. 92(5): p. 1087-1094.
67. Yaakob, Z., et al., Overview of the production of biodiesel from waste cooking oil. Renewable and sustainable energy reviews, 2013. 18: p. 184-193.
68. Leung, D. and Y. Guo, Transesterification of neat and used frying oil: optimization for biodiesel production. Fuel processing technology, 2006. 87(10): p. 883-890.
69. Tier, I., California Biodiesel Multimedia Evaluation. 2012.
70. Alptekin, E., M. Canakci, and H. Sanli. Methyl ester production from chicken fat with high FFA. in World Renewable Energy Congress-Sweden; 8-13 May; 2011; Linköping; Sweden. 2011. Linköping University Electronic Press.
71. Lotero, E., et al., Synthesis of biodiesel via acid catalysis. Industrial & engineering chemistry research, 2005. 44(14): p. 5353-5363.
72. Liu, X., et al., Transesterification of soybean oil to biodiesel using SrO as a solid base catalyst. Catalysis Communications, 2007. 8(7): p. 1107-1111.
73. Ferrari, R.A., A. Pighinelli, and K.J. Park, Biodiesel production and quality. Biofuel's Engineering Process Technology, 2011. 1: p. 221-240.
74. Li, Z.-H., et al., A stirring packed-bed reactor to enhance the esterification–transesterification in biodiesel production by lowering mass-transfer resistance. Chemical engineering journal, 2013. 234: p. 9-15.
75. Kawentar, W.A. and A. Budiman, Synthesis of biodiesel from second-used cooking oil. Energy Procedia, 2013. 32: p. 190-199.
76. Huber, G.W., S. Iborra, and A. Corma, Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering. Chemical reviews, 2006. 106(9): p. 4044-4098.
77. Komintarachat, C. and S. Chuepeng, Methanol-based transesterification optimization of waste used cooking oil over potassium hydroxide catalyst. American Journal of Applied Sciences, 2010. 7(8): p. 1073-1078.
78. Al-Hamamre, Z. and J. Yamin, Parametric study of the alkali catalyzed transesterification of waste frying oil for Biodiesel production. Energy Conversion and Management, 2014. 79: p. 246-254.
79. Rashid, U. and F. Anwar, Production of biodiesel through optimized alkaline-catalyzed transesterification of rapeseed oil. Fuel, 2008. 87(3): p. 265-273.
80. Fadhil, A.B. and L.H. Ali, Alkaline-catalyzed transesterification of Silurus triostegus Heckel fish oil: Optimization of transesterification parameters. Renewable Energy, 2013. 60: p. 481-488.
81. Harabi, M., et al., Biodiesel and Crude Glycerol from Waste Frying Oil: Production, Characterization and Evaluation of Biodiesel Oxidative Stability with Diesel Blends. Sustainability, 2019. 11(7): p. 1937.
82. Rahadianti, E.S., Y. Yerizam, and M. Martha, Biodiesel production from waste cooking oil. IJFAC (Indonesian Journal of Fundamental and Applied Chemistry), 2018. 3(3): p. 77-82.
83. Kafuku, G. and M. Mbarawa, Biodiesel production from Croton megalocarpus oil and its process optimization. Fuel, 2010. 89(9): p. 2556-2560.
84. Lam, M.K., K.T. Lee, and A.R. Mohamed, Homogeneous, heterogeneous and enzymatic catalysis for transesterification of high free fatty acid oil (waste cooking oil) to biodiesel: a review. Biotechnology advances, 2010. 28(4): p. 500-518.
85. de Araújo, C.D.M., et al., Biodiesel production from used cooking oil: A review. Renewable and Sustainable Energy Reviews, 2013. 27: p. 445-452.
86. Atadashi, I., M. Aroua, and A.A. Aziz, Biodiesel separation and purification: a review. Renewable Energy, 2011. 36(2): p. 437-443.
87. Freedman, B., R.O. Butterfield, and E.H. Pryde, Transesterification kinetics of soybean oil 1. Journal of the American Oil Chemists’ Society, 1986. 63(10): p. 1375-1380.
88. Goff, M.J., et al., Acid‐catalyzed alcoholysis of soybean oil. Journal of the American Oil Chemists' Society, 2004. 81(4): p. 415-420.
89. Marinković, D.M., et al., Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives. Renewable and Sustainable Energy Reviews, 2016. 56: p. 1387-1408.
90. Bhatti, H.N., M.A. Hanif, and M. Qasim, Biodiesel production from waste tallow. Fuel, 2008. 87(13-14): p. 2961-2966.
91. Farag, H., A. El-Maghraby, and N.A. Taha, Optimization of factors affecting esterification of mixed oil with high percentage of free fatty acid. Fuel Processing Technology, 2011. 92(3): p. 507-510.
92. Saravanan, N., et al., An experimental comparison of transesterification process with different alcohols using acid catalysts. Biomass and bioenergy, 2010. 34(7): p. 999-1005.
93. Carlucci, C., L. Degennaro, and R. Luisi, Titanium dioxide as a catalyst in biodiesel production. Catalysts, 2019. 9(1): p. 75.
94. Soriano Jr, N.U., R. Venditti, and D.S. Argyropoulos, Biodiesel synthesis via homogeneous Lewis acid-catalyzed transesterification. Fuel, 2009. 88(3): p. 560-565.
95. Stamenković, O.S., A.V. Veličković, and V.B. Veljković, The production of biodiesel from vegetable oils by ethanolysis: Current state and perspectives. Fuel, 2011. 90(11): p. 3141-3155.
96. Atadashi, I., et al., The effects of catalysts in biodiesel production: A review. Journal of industrial and engineering chemistry, 2013. 19(1): p. 14-26.
97. Ferreira, A.B., A. Lemos Cardoso, and M.J. da Silva, Tin-catalyzed esterification and transesterification reactions: a review. ISRN Renewable Energy, 2012. 2012.
98. Math, M., S.P. Kumar, and S.V. Chetty, Technologies for biodiesel production from used cooking oil—A review. Energy for sustainable Development, 2010. 14(4): p. 339-345.
99. Singh, A.K. and S.D. Fernando, Reaction kinetics of soybean oil transesterification using heterogeneous metal oxide catalysts. Chemical Engineering & Technology: Industrial Chemistry‐Plant Equipment‐Process Engineering‐Biotechnology, 2007. 30(12): p. 1716-1720.
100. Guo, F., et al., Calcined sodium silicate as solid base catalyst for biodiesel production. Fuel Processing Technology, 2010. 91(3): p. 322-328.
101. Encinar, J.M., A. Pardal, and N. Sánchez, An improvement to the transesterification process by the use of co-solvents to produce biodiesel. Fuel, 2016. 166: p. 51-58.
102. Zabeti, M., W.M.A.W. Daud, and M.K. Aroua, Activity of solid catalysts for biodiesel production: a review. Fuel Processing Technology, 2009. 90(6): p. 770-777.
103. Ngamcharussrivichai, C., et al., Biodiesel production through transesterification over natural calciums. Fuel Processing Technology, 2010. 91(11): p. 1409-1415.
104. Granados, M.L., et al., Biodiesel from sunflower oil by using activated calcium oxide. Applied Catalysis B: Environmental, 2007. 73(3-4): p. 317-326.
105. Xie, W. and T. Wang, Biodiesel production from soybean oil transesterification using tin oxide-supported WO3 catalysts. Fuel processing technology, 2013. 109: p. 150-155.
106. SOLISab, J.L., L. ALEJO, and Y. KIROS, TIN (IV) OXIDE AS SOLID CATALYST FOR HETEROGENEOUS TRANSTESTERIFICATION OF NON-EDIBLE OILS.
107. Kiwjaroun, C., C. Tubtimdee, and P. Piumsomboon, LCA studies comparing biodiesel synthesized by conventional and supercritical methanol methods. Journal of Cleaner Production, 2009. 17(2): p. 143-153.
108. Jain, S. and M. Sharma, Kinetics of acid base catalyzed transesterification of Jatropha curcas oil. Bioresource technology, 2010. 101(20): p. 7701-7706.
109. Kusdiana, D. and S. Saka, Kinetics of transesterification in rapeseed oil to biodiesel fuel as treated in supercritical methanol. Fuel, 2001. 80(5): p. 693-698.
110. Karki, S., et al., Supercritical Transesterification of Waste Vegetable Oil: Characteristic Comparison of Ethanol and Methanol as Solvents. Applied Sciences, 2017. 7(6): p. 632.
111. Farobie, O. and Y. Matsumura, Biodiesel production in supercritical methanol using a novel spiral reactor. Procedia environmental sciences, 2015. 28: p. 204-213.
112. Yin, J.-Z., M. Xiao, and J.-B. Song, Biodiesel from soybean oil in supercritical methanol with co-solvent. Energy Conversion and Management, 2008. 49(5): p. 908-912.
113. Wei, C.-Y., T.-C. Huang, and H.-H. Chen, Biodiesel production using supercritical methanol with carbon dioxide and acetic acid. Journal of Chemistry, 2013. 2013.
114. Imahara, H., et al., Thermal stability of biodiesel in supercritical methanol. Fuel, 2008. 87(1): p. 1-6.
115. Khan, S.A., et al., Prospects of biodiesel production from microalgae in India. Renewable and sustainable energy reviews, 2009. 13(9): p. 2361-2372.
116. Kusdiana, D. and S. Saka, Effects of water on biodiesel fuel production by supercritical methanol treatment. Bioresource technology, 2004. 91(3): p. 289-295.
117. Murphy, F., et al., Potential to increase indigenous biodiesel production to help meet 2020 targets–An EU perspective with a focus on Ireland. Renewable and Sustainable Energy Reviews, 2014. 35: p. 154-170.
118. Bajaj, A., et al., Biodiesel production through lipase catalyzed transesterification: an overview. Journal of Molecular Catalysis B: Enzymatic, 2010. 62(1): p. 9-14.
119. Xia, L., Using biosolids as a water source in non-catalytic hydrolysis reactions for biofuel production. 2017.
120. Günay, M.E., L. Türker, and N.A. Tapan, Significant parameters and technological advancements in biodiesel production systems. Fuel, 2019. 250: p. 27-41.
121. Moazeni, F., Y.-C. Chen, and G. Zhang, Enzymatic transesterification for biodiesel production from used cooking oil, a review. Journal of Cleaner Production, 2019. 216: p. 117-128.
122. Atadashi, I., et al., Refining technologies for the purification of crude biodiesel. Applied energy, 2011. 88(12): p. 4239-4251.
123. Albahri, T., M. Riazi, and A. Alqattan, Analysis of quality of the petroleum fuels. Energy & fuels, 2003. 17(3): p. 689-693.
124. Atadashi, I., M.K. Aroua, and A.A. Aziz, High quality biodiesel and its diesel engine application: a review. Renewable and Sustainable Energy Reviews, 2010. 14(7): p. 1999-2008.
125. Monyem, A. and J.H. Van Gerpen, The effect of biodiesel oxidation on engine performance and emissions. Biomass and bioenergy, 2001. 20(4): p. 317-325.
126. Fernández-Álvarez, P., et al., Evaluation of biodiesel as bioremediation agent for the treatment of the shore affected by the heavy oil spill of the Prestige. Journal of hazardous materials, 2007. 147(3): p. 914-922.
127. Logistics, D.S., Profile of DB Schenker Logistics.
128. Kotrba, R. 'Name that Biodiesel Train' contest. 2013 Feb, 2020]; Available from: http://www.biodieselmagazine.com/blog/article/2013/05/name-that-biodiesel-train-contest.
129. Clayton. Top 15 Unexpected Uses For Biodiesel. 2019; Available from: https://enrg.io/top-15-unexpected-uses-for-biodiesel/.
130. Center, A.F.D. Diesel Vehicles Using Biodiesel. 2013; Available from: https://afdc.energy.gov/vehicles/diesel.html.
131. Saidur, R., et al., A review on biomass as a fuel for boilers. Renewable and sustainable energy reviews, 2011. 15(5): p. 2262-2289.
132. Elgharbawy, A. and A. Sayed, A review on natural gas previous, current and forecasting prices and demand. Journal of Petroleum and Mining Engineering, 2020. 22(1): p. 61-64.
References
1. Kirubakaran, M. and V.A.M. Selvan, A comprehensive review of low cost biodiesel production from waste chicken fat. Renewable and Sustainable Energy Reviews, 2018. 82: p. 390-401.
2. Rouhany, M. and H. Montgomery, Global Biodiesel Production: The State of the Art and Impact on Climate Change, in Biodiesel. 2019, Springer. p. 1-14.
3. Mishra, V.K. and R. Goswami, A review of production, properties and advantages of biodiesel. Biofuels, 2018. 9(2): p. 273-289.
4. Živković, S. and M. Veljković, Environmental impacts the of production and use of biodiesel. Environmental Science and Pollution Research, 2018. 25(1): p. 191-199.
5. Giakoumis, E.G., Analysis of 22 vegetable oils’ physico-chemical properties and fatty acid composition on a statistical basis, and correlation with the degree of unsaturation. Renewable energy, 2018. 126: p. 403-419.
6. El-Gharbawy, A.S.A.A., PRODUCTION OF BIODIESEL FROM NON EDIBLE VEGETABLE OIL. 2016
7. Azizian, H. and J.K. Kramer, A rapid method for the quantification of fatty acids in fats and oils with emphasis on trans fatty acids using Fourier transform near infrared spectroscopy (FT‐NIR). Lipids, 2005. 40(8): p. 855-867.
8. Balat, M., Potential alternatives to edible oils for biodiesel production–A review of current work. Energy conversion and management, 2011. 52(2): p. 1479-1492.
9. Gui, M.M., K. Lee, and S. Bhatia, Feasibility of edible oil vs. non-edible oil vs. waste edible oil as biodiesel feedstock. Energy, 2008. 33(11): p. 1646-1653.
10. Rincón, L., J. Jaramillo, and C. Cardona, Comparison of feedstocks and technologies for biodiesel production: An environmental and techno-economic evaluation. Renewable Energy, 2014. 69: p. 479-487.
11. Ambat, I., V. Srivastava, and M. Sillanpää, Recent advancement in biodiesel production methodologies using various feedstock: A review. Renewable and Sustainable Energy Reviews, 2018. 90: p. 356-369.
12. Demirbas, A., Comparison of transesterification methods for production of biodiesel from vegetable oils and fats. Energy conversion and management, 2008. 49(1): p. 125-130.
13. Leung, D.Y., X. Wu, and M. Leung, A review on biodiesel production using catalyzed transesterification. Applied energy, 2010. 87(4): p. 1083-1095.
14. Likozar, B. and J. Levec, Transesterification of canola, palm, peanut, soybean and sunflower oil with methanol, ethanol, isopropanol, butanol and tert-butanol to biodiesel: Modelling of chemical equilibrium, reaction kinetics and mass transfer based on fatty acid composition. Applied Energy, 2014. 123: p. 108-120.
15. Demirbas, A., Biodiesel from waste cooking oil via base-catalytic and supercritical methanol transesterification. Energy conversion and management, 2009. 50(4): p. 923-927.
16. Elgharbawy, A.S.A.A., cost analysis for biodiesel production from waste cooking oil plant in Egypt. International Journal of Smart Grid-ijSmartGrid, 2017. 1(1): p. 16-25.
17. Elgharbawy, A.S., et al., Glycerolysis treatment to enhance biodiesel production from low-quality feedstocks. Fuel, 2021. 284: p. 118970.
18. Ramadhas, A.S., S. Jayaraj, and C. Muraleedharan, Biodiesel production from high FFA rubber seed oil. Fuel, 2005. 84(4): p. 335-340.
19. Van Gerpen, J., Biodiesel processing and production. Fuel processing technology, 2005. 86(10): p. 1097-1107.
20. Atadashi, I., et al., Production of biodiesel using high free fatty acid feedstocks. Renewable and sustainable energy reviews, 2012. 16(5): p. 3275-3285.
21. Knothe, G., J.H. Van Gerpen, and J. Krahl, The biodiesel handbook. Vol. 1. 2005: AOCS press Champaign, IL.
22. Anderson, E., et al., Glycerin esterification of scum derived free fatty acids for biodiesel production. Bioresource technology, 2016. 200: p. 153-160.
23. Tan, H., A.A. Aziz, and M. Aroua, Glycerol production and its applications as a raw material: A review. Renewable and Sustainable Energy Reviews, 2013. 27: p. 118-127.
24. Kombe, G.G., et al., Pre-treatment of high free fatty acids oils by chemical re-esterification for biodiesel production—a review. Advances in Chemical Engineering and Science, 2013. 2013.
25. Felizardo, P., et al., Study on the glycerolysis reaction of high free fatty acid oils for use as biodiesel feedstock. Fuel Processing Technology, 2011. 92(6): p. 1225-1229.
26. Dı́az, I., et al., Synthesis of MCM-41 materials functionalised with dialkylsilane groups and their catalytic activity in the esterification of glycerol with fatty acids. Applied Catalysis A: General, 2003. 242(1): p. 161-169.
27. Sani, Y., W. Daud, and A. Abdul Aziz, Biodiesel feedstock and production technologies: Successes, challenges and prospects. Biodiesel-Feedstocks, Production, and Applications, 2012. 10: p. 52790.
28. Gebremariam, S. and J. Marchetti, Economics of biodiesel production. Energy Conversion and Management, 2018. 168: p. 74-84.
29. Gnanaprakasam, A., et al., Recent strategy of biodiesel production from waste cooking oil and process influencing parameters: a review. Journal of Energy, 2013. 2013.
30. Bhuiya, M., et al., Second generation biodiesel: potential alternative to-edible oil-derived biodiesel. Energy Procedia, 2014. 61: p. 1969-1972.
31. Pragya, N., K.K. Pandey, and P. Sahoo, A review on harvesting, oil extraction and biofuels production technologies from microalgae. Renewable and Sustainable Energy Reviews, 2013. 24: p. 159-171.
32. Karmakar, A., S. Karmakar, and S. Mukherjee, Properties of various plants and animals feedstocks for biodiesel production. Bioresource technology, 2010. 101(19): p. 7201-7210.
33. Riazi, M. and D. Chiaramonti, Biofuels production and processing technology. 2017: CRC Press.
34. Sumathi, S., S. Chai, and A. Mohamed, Utilization of oil palm as a source of renewable energy in Malaysia. Renewable and sustainable energy reviews, 2008. 12(9): p. 2404-2421.
35. Demirbas, A., Importance of biodiesel as transportation fuel. Energy policy, 2007. 35(9): p. 4661-4670.
36. Baskar, G. and R. Aiswarya, Trends in catalytic production of biodiesel from various feedstocks. Renewable and Sustainable Energy Reviews, 2016. 57: p. 496-504.
37. Demirbas, A., et al., Biodiesel production from non-edible plant oils. Energy Exploration & Exploitation, 2016. 34(2): p. 290-318.
38. Banković-Ilić, I.B., O.S. Stamenković, and V.B. Veljković, Biodiesel production from non-edible plant oils. Renewable and Sustainable Energy Reviews, 2012. 16(6): p. 3621-3647.
39. Jansri, S., et al., Kinetics of methyl ester production from mixed crude palm oil by using acid-alkali catalyst. Fuel processing technology, 2011. 92(8): p. 1543-1548.
40. Acquaye, A.A., et al., Biofuels and their potential to aid the UK towards achieving emissions reduction policy targets. Renewable and Sustainable Energy Reviews, 2012. 16(7): p. 5414-5422.
41. Thamsiriroj, T. and J. Murphy, The impact of the life cycle analysis methodology on whether biodiesel produced from residues can meet the EU sustainability criteria for biofuel facilities constructed after 2017. Renewable Energy, 2011. 36(1): p. 50-63.
42. Akubude, V., K. Nwaigwe, and E. Dintwa, Production of biodiesel from microalgae via nanocatalyzed transesterification process: A review. Materials Science for Energy Technologies, 2019. 2(2): p. 216-225.
43. Khan, S., et al., Biodiesel production from algae to overcome the energy crisis. HAYATI Journal of Biosciences, 2017. 24(4): p. 163-167.
44. Milledge, J.J. and S. Heaven, A review of the harvesting of micro-algae for biofuel production. Reviews in Environmental Science and Bio/Technology, 2013. 12(2): p. 165-178.
45. Hayyan, A., et al., Reduction of high content of free fatty acid in sludge palm oil via acid catalyst for biodiesel production. Fuel Processing Technology, 2011. 92(5): p. 920-924.
46. Chai, M., et al., Esterification pretreatment of free fatty acid in biodiesel production, from laboratory to industry. Fuel processing technology, 2014. 125: p. 106-113.
47. Kara, K., et al., Biodiesel production from waste fish oil with high free fatty acid content from Moroccan fish-processing industries. Egyptian Journal of Petroleum, 2018. 27(2): p. 249-255.
48. Sianipar, R.N.R., D. Ariyani, and I.F. Nata, Conversion of palm oil sludge to biodiesel using alum and KOH as catalysts. Sustainable Environment Research, 2017. 27(6): p. 291-295.
49. Marchetti, J. and A. Errazu, Esterification of free fatty acids using sulfuric acid as catalyst in the presence of triglycerides. Biomass and Bioenergy, 2008. 32(9): p. 892-895.
50. Thaiyasuit, P., K. Pianthong, and I. Worapun, Acid esterification-alkaline transesterification process for methyl ester production from crude rubber seed oil. Journal of oleo science, 2012. 61(2): p. 81-88.
51. Sadaf, S., et al., Biodiesel production from waste cooking oil: an efficient technique to convert waste into biodiesel. Sustainable Cities and Society, 2018. 41: p. 220-226.
52. García Martín, J.F., et al., Esterification of Free Fatty Acids with Glycerol within the Biodiesel Production Framework. Processes, 2019. 7(11): p. 832.
53. Bhosle, B. and R. Subramanian, New approaches in deacidification of edible oils––a review. Journal of Food Engineering, 2005. 69(4): p. 481-494.
54. Fregolente, P.B.L., et al., Monoglycerides and diglycerides synthesis in a solvent-free system by lipase-catalyzed glycerolysis, in Biotechnology for Fuels and Chemicals. 2008, Springer. p. 285-292.
55. Sousa, L.L., I.L. Lucena, and F.A.N. Fernandes, Transesterification of castor oil: Effect of the acid value and neutralization of the oil with glycerol. Fuel Processing Technology, 2010. 91(2): p. 194-196.
56. Binhayeeding, N., S. Klomklao, and K. Sangkharak, Utilization of waste glycerol from biodiesel process as a substrate for mono-, di-, and triacylglycerol production. Energy Procedia, 2017. 138: p. 895-900.
57. Mostafa, N., A. Maher, and W. Abdelmoez, Production of mono-, di-, and triglycerides from waste fatty acids through esterification with glycerol. Advances in Bioscience and Biotechnology, 2013. 4(09): p. 900.
58. Hermida, L., A.Z. Abdullah, and A.R. Mohamed, Synthesis of monoglyceride through glycerol esterification with lauric acid over propyl sulfonic acid post-synthesis functionalized SBA-15 mesoporous catalyst. Chemical Engineering Journal, 2011. 174(2-3): p. 668-676.
59. Gole, V.L. and P.R. Gogate, Intensification of glycerolysis reaction of higher free fatty acid containing sustainable feedstock using microwave irradiation. Fuel processing technology, 2014. 118: p. 110-116.
60. Megawati, M., et al., The Kinetics of Calcium Oxide Catalyzed Esterification of Glycerol with Free Fatty Acids Using Pseudo-homogeneous Model Approach. Reaktor. 18(1): p. 1-6.
61. Kombe, G.G., et al., Low temperature glycerolysis as a high FFA pre-treatment method for biodiesel production. Advances in Chemical Engineering and Science, 2013. 2013.
62. Kombe, G.G., Re-esterification of high free fatty acid oils for biodiesel production. Biofuels, 2015. 6(1-2): p. 31-36.
63. Supardan, M.D., Y. Meldasari, and Y. Annisa. Glycerolysis for Lowering Free FattyAcid of Waste Cooking Oil. in Proceedings of The Annual International Conference, Syiah Kuala University-Life Sciences & Engineering Chapter. 2015.
64. Mustapha, W., Effect of Co-solvent Addition on Glycerolysis of Waste Cooking Oil.
65. Rashid, U., et al., Production of sunflower oil methyl esters by optimized alkali-catalyzed methanolysis. Biomass and bioenergy, 2008. 32(12): p. 1202-1205.
66. Varanda, M.G., G. Pinto, and F. Martins, Life cycle analysis of biodiesel production. Fuel Processing Technology, 2011. 92(5): p. 1087-1094.
67. Yaakob, Z., et al., Overview of the production of biodiesel from waste cooking oil. Renewable and sustainable energy reviews, 2013. 18: p. 184-193.
68. Leung, D. and Y. Guo, Transesterification of neat and used frying oil: optimization for biodiesel production. Fuel processing technology, 2006. 87(10): p. 883-890.
69. Tier, I., California Biodiesel Multimedia Evaluation. 2012.
70. Alptekin, E., M. Canakci, and H. Sanli. Methyl ester production from chicken fat with high FFA. in World Renewable Energy Congress-Sweden; 8-13 May; 2011; Linköping; Sweden. 2011. Linköping University Electronic Press.
71. Lotero, E., et al., Synthesis of biodiesel via acid catalysis. Industrial & engineering chemistry research, 2005. 44(14): p. 5353-5363.
72. Liu, X., et al., Transesterification of soybean oil to biodiesel using SrO as a solid base catalyst. Catalysis Communications, 2007. 8(7): p. 1107-1111.
73. Ferrari, R.A., A. Pighinelli, and K.J. Park, Biodiesel production and quality. Biofuel's Engineering Process Technology, 2011. 1: p. 221-240.
74. Li, Z.-H., et al., A stirring packed-bed reactor to enhance the esterification–transesterification in biodiesel production by lowering mass-transfer resistance. Chemical engineering journal, 2013. 234: p. 9-15.
75. Kawentar, W.A. and A. Budiman, Synthesis of biodiesel from second-used cooking oil. Energy Procedia, 2013. 32: p. 190-199.
76. Huber, G.W., S. Iborra, and A. Corma, Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering. Chemical reviews, 2006. 106(9): p. 4044-4098.
77. Komintarachat, C. and S. Chuepeng, Methanol-based transesterification optimization of waste used cooking oil over potassium hydroxide catalyst. American Journal of Applied Sciences, 2010. 7(8): p. 1073-1078.
78. Al-Hamamre, Z. and J. Yamin, Parametric study of the alkali catalyzed transesterification of waste frying oil for Biodiesel production. Energy Conversion and Management, 2014. 79: p. 246-254.
79. Rashid, U. and F. Anwar, Production of biodiesel through optimized alkaline-catalyzed transesterification of rapeseed oil. Fuel, 2008. 87(3): p. 265-273.
80. Fadhil, A.B. and L.H. Ali, Alkaline-catalyzed transesterification of Silurus triostegus Heckel fish oil: Optimization of transesterification parameters. Renewable Energy, 2013. 60: p. 481-488.
81. Harabi, M., et al., Biodiesel and Crude Glycerol from Waste Frying Oil: Production, Characterization and Evaluation of Biodiesel Oxidative Stability with Diesel Blends. Sustainability, 2019. 11(7): p. 1937.
82. Rahadianti, E.S., Y. Yerizam, and M. Martha, Biodiesel production from waste cooking oil. IJFAC (Indonesian Journal of Fundamental and Applied Chemistry), 2018. 3(3): p. 77-82.
83. Kafuku, G. and M. Mbarawa, Biodiesel production from Croton megalocarpus oil and its process optimization. Fuel, 2010. 89(9): p. 2556-2560.
84. Lam, M.K., K.T. Lee, and A.R. Mohamed, Homogeneous, heterogeneous and enzymatic catalysis for transesterification of high free fatty acid oil (waste cooking oil) to biodiesel: a review. Biotechnology advances, 2010. 28(4): p. 500-518.
85. de Araújo, C.D.M., et al., Biodiesel production from used cooking oil: A review. Renewable and Sustainable Energy Reviews, 2013. 27: p. 445-452.
86. Atadashi, I., M. Aroua, and A.A. Aziz, Biodiesel separation and purification: a review. Renewable Energy, 2011. 36(2): p. 437-443.
87. Freedman, B., R.O. Butterfield, and E.H. Pryde, Transesterification kinetics of soybean oil 1. Journal of the American Oil Chemists’ Society, 1986. 63(10): p. 1375-1380.
88. Goff, M.J., et al., Acid‐catalyzed alcoholysis of soybean oil. Journal of the American Oil Chemists' Society, 2004. 81(4): p. 415-420.
89. Marinković, D.M., et al., Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives. Renewable and Sustainable Energy Reviews, 2016. 56: p. 1387-1408.
90. Bhatti, H.N., M.A. Hanif, and M. Qasim, Biodiesel production from waste tallow. Fuel, 2008. 87(13-14): p. 2961-2966.
91. Farag, H., A. El-Maghraby, and N.A. Taha, Optimization of factors affecting esterification of mixed oil with high percentage of free fatty acid. Fuel Processing Technology, 2011. 92(3): p. 507-510.
92. Saravanan, N., et al., An experimental comparison of transesterification process with different alcohols using acid catalysts. Biomass and bioenergy, 2010. 34(7): p. 999-1005.
93. Carlucci, C., L. Degennaro, and R. Luisi, Titanium dioxide as a catalyst in biodiesel production. Catalysts, 2019. 9(1): p. 75.
94. Soriano Jr, N.U., R. Venditti, and D.S. Argyropoulos, Biodiesel synthesis via homogeneous Lewis acid-catalyzed transesterification. Fuel, 2009. 88(3): p. 560-565.
95. Stamenković, O.S., A.V. Veličković, and V.B. Veljković, The production of biodiesel from vegetable oils by ethanolysis: Current state and perspectives. Fuel, 2011. 90(11): p. 3141-3155.
96. Atadashi, I., et al., The effects of catalysts in biodiesel production: A review. Journal of industrial and engineering chemistry, 2013. 19(1): p. 14-26.
97. Ferreira, A.B., A. Lemos Cardoso, and M.J. da Silva, Tin-catalyzed esterification and transesterification reactions: a review. ISRN Renewable Energy, 2012. 2012.
98. Math, M., S.P. Kumar, and S.V. Chetty, Technologies for biodiesel production from used cooking oil—A review. Energy for sustainable Development, 2010. 14(4): p. 339-345.
99. Singh, A.K. and S.D. Fernando, Reaction kinetics of soybean oil transesterification using heterogeneous metal oxide catalysts. Chemical Engineering & Technology: Industrial Chemistry‐Plant Equipment‐Process Engineering‐Biotechnology, 2007. 30(12): p. 1716-1720.
100. Guo, F., et al., Calcined sodium silicate as solid base catalyst for biodiesel production. Fuel Processing Technology, 2010. 91(3): p. 322-328.
101. Encinar, J.M., A. Pardal, and N. Sánchez, An improvement to the transesterification process by the use of co-solvents to produce biodiesel. Fuel, 2016. 166: p. 51-58.
102. Zabeti, M., W.M.A.W. Daud, and M.K. Aroua, Activity of solid catalysts for biodiesel production: a review. Fuel Processing Technology, 2009. 90(6): p. 770-777.
103. Ngamcharussrivichai, C., et al., Biodiesel production through transesterification over natural calciums. Fuel Processing Technology, 2010. 91(11): p. 1409-1415.
104. Granados, M.L., et al., Biodiesel from sunflower oil by using activated calcium oxide. Applied Catalysis B: Environmental, 2007. 73(3-4): p. 317-326.
105. Xie, W. and T. Wang, Biodiesel production from soybean oil transesterification using tin oxide-supported WO3 catalysts. Fuel processing technology, 2013. 109: p. 150-155.
106. SOLISab, J.L., L. ALEJO, and Y. KIROS, TIN (IV) OXIDE AS SOLID CATALYST FOR HETEROGENEOUS TRANSTESTERIFICATION OF NON-EDIBLE OILS.
107. Kiwjaroun, C., C. Tubtimdee, and P. Piumsomboon, LCA studies comparing biodiesel synthesized by conventional and supercritical methanol methods. Journal of Cleaner Production, 2009. 17(2): p. 143-153.
108. Jain, S. and M. Sharma, Kinetics of acid base catalyzed transesterification of Jatropha curcas oil. Bioresource technology, 2010. 101(20): p. 7701-7706.
109. Kusdiana, D. and S. Saka, Kinetics of transesterification in rapeseed oil to biodiesel fuel as treated in supercritical methanol. Fuel, 2001. 80(5): p. 693-698.
110. Karki, S., et al., Supercritical Transesterification of Waste Vegetable Oil: Characteristic Comparison of Ethanol and Methanol as Solvents. Applied Sciences, 2017. 7(6): p. 632.
111. Farobie, O. and Y. Matsumura, Biodiesel production in supercritical methanol using a novel spiral reactor. Procedia environmental sciences, 2015. 28: p. 204-213.
112. Yin, J.-Z., M. Xiao, and J.-B. Song, Biodiesel from soybean oil in supercritical methanol with co-solvent. Energy Conversion and Management, 2008. 49(5): p. 908-912.
113. Wei, C.-Y., T.-C. Huang, and H.-H. Chen, Biodiesel production using supercritical methanol with carbon dioxide and acetic acid. Journal of Chemistry, 2013. 2013.
114. Imahara, H., et al., Thermal stability of biodiesel in supercritical methanol. Fuel, 2008. 87(1): p. 1-6.
115. Khan, S.A., et al., Prospects of biodiesel production from microalgae in India. Renewable and sustainable energy reviews, 2009. 13(9): p. 2361-2372.
116. Kusdiana, D. and S. Saka, Effects of water on biodiesel fuel production by supercritical methanol treatment. Bioresource technology, 2004. 91(3): p. 289-295.
117. Murphy, F., et al., Potential to increase indigenous biodiesel production to help meet 2020 targets–An EU perspective with a focus on Ireland. Renewable and Sustainable Energy Reviews, 2014. 35: p. 154-170.
118. Bajaj, A., et al., Biodiesel production through lipase catalyzed transesterification: an overview. Journal of Molecular Catalysis B: Enzymatic, 2010. 62(1): p. 9-14.
119. Xia, L., Using biosolids as a water source in non-catalytic hydrolysis reactions for biofuel production. 2017.
120. Günay, M.E., L. Türker, and N.A. Tapan, Significant parameters and technological advancements in biodiesel production systems. Fuel, 2019. 250: p. 27-41.
121. Moazeni, F., Y.-C. Chen, and G. Zhang, Enzymatic transesterification for biodiesel production from used cooking oil, a review. Journal of Cleaner Production, 2019. 216: p. 117-128.
122. Atadashi, I., et al., Refining technologies for the purification of crude biodiesel. Applied energy, 2011. 88(12): p. 4239-4251.
123. Albahri, T., M. Riazi, and A. Alqattan, Analysis of quality of the petroleum fuels. Energy & fuels, 2003. 17(3): p. 689-693.
124. Atadashi, I., M.K. Aroua, and A.A. Aziz, High quality biodiesel and its diesel engine application: a review. Renewable and Sustainable Energy Reviews, 2010. 14(7): p. 1999-2008.
125. Monyem, A. and J.H. Van Gerpen, The effect of biodiesel oxidation on engine performance and emissions. Biomass and bioenergy, 2001. 20(4): p. 317-325.
126. Fernández-Álvarez, P., et al., Evaluation of biodiesel as bioremediation agent for the treatment of the shore affected by the heavy oil spill of the Prestige. Journal of hazardous materials, 2007. 147(3): p. 914-922.
127. Logistics, D.S., Profile of DB Schenker Logistics.
128. Kotrba, R. 'Name that Biodiesel Train' contest. 2013 Feb, 2020]; Available from: http://www.biodieselmagazine.com/blog/article/2013/05/name-that-biodiesel-train-contest.
129. Clayton. Top 15 Unexpected Uses For Biodiesel. 2019; Available from: https://enrg.io/top-15-unexpected-uses-for-biodiesel/.
130. Center, A.F.D. Diesel Vehicles Using Biodiesel. 2013; Available from: https://afdc.energy.gov/vehicles/diesel.html.
131. Saidur, R., et al., A review on biomass as a fuel for boilers. Renewable and sustainable energy reviews, 2011. 15(5): p. 2262-2289.
132. Elgharbawy, A. and A. Sayed, A review on natural gas previous, current and forecasting prices and demand. Journal of Petroleum and Mining Engineering, 2020. 22(1): p. 61-64.
