The Physical Properties of Biodiesel-Diesel Fuel Produced via Transesterification Process from Different Oil Sources

Biodiesel is one of the sources of renewable fuel. Due to increasing environmental pollution, global warming caused by fossil fuels and limited fossil fuel resources, its production has been increased. Nowadays, low prices renewable sources are used to produce biodiesel. In this study, biodiesel is produced from edible oil wastes, such as goat fat, chicken fat and palm kernel-derived oil using the transesterification process. The produced biodiesel is mixed with different ratios of petroleum diesel to improve the physical properties of the produced biodiesel, such as flash point, kinematic viscosity, density, cloud point and pour point. The physical properties are measured according to the ASTM D6751 standard. The results show that some of the properties, such as density, viscosity and flash point are improved with the addition of biodiesel to diesel fuel. The other properties, such as pour point and cloud point are increased with the higher proportion of the biodiesel in the mixture. This causes a bad effect on the consumption of fuel and cannot be used in cold weather. Generally, adding biodiesel to diesel enhance the fuel properties.