Characterization of Blends of Diesel Fuel #2 and Biodiesel Synthesized from Used Vegetable Oil
Keywords:
Biofuel; Cetane Number; Combustion Efficiency; Fossil Fuel; Flash Point; Pour PointAbstract
In this study, the production of biodiesel from used vegetable oil was carried out using the base-transesterification process. Blends of the biodiesel (BD)and diesel fuel #2 (Chemical Abstract Service [CAS] No. 68476-34-6) – here referred to simply as diesel (D) were prepared in percentages of 50D:50BD,60D:40BD, 70D:30BD, 80D:20BD, and 90D:10BD; and characterized using Gas Chromatography-Flame Ionization Detection (GC-FID). Results showed varying compositions of hydrocarbons of various carbon chain lengths and other specific organic compounds including phytane, pristine, and o-terphenyl in the blends. Additionally, the blends 80D:20BD and 90D:10BD exhibited higher specific gravity values while the blends 50D:50BD and 60B:40BD showed improved cetane numbers when
compared with 100% biodiesel. It was also observed that the D/BD blends demonstrated lower pour points than NNPC’s 100% diesel. Overall, the 70D:30BD blend exhibited favourable cetane number, flash point, and pour point, suggesting potential benefits in terms of combustion efficiency and low-temperature operability.
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