This work is part of the diversification of renewable energy sources, such as biomass for example. This research focuses on the recovery of date seeds which cannot be consumed by humans and are considered as waste. For this, the physicochemical and biochemical properties of these seeds were studied and determined. The results obtained allowed us to conclude that this waste product can be valorized for the production of biodiesel. Besides, the techniques adopted to achieve the best results in terms of quality were investigated as well. In addition, the process of extracting oils from date seeds was determined using the Soxhlet extraction procedure with a volatile solvent. The results obtained showed that the oil content of date seeds was estimated at around 4% to 5%, with a very high acid number (8.9776). This was achieved by means of the esterification and transesterification reactions, which allowed producing biodiesel. This method makes it possible to produce up to 91% of biodiesel with characteristics close to those reported in previous studies and recognized by international standards.
Today, renewable energies have become one of the most important concerns of the countries of the world as a result of the negative effects we have reached on the environment from our use of fossil fuels and the resulting emissions of toxic gases. It is no secret that the fields of renewable energies are very diverse, including those derived from biomass. Researchers in this field seek to diversify bioenergy sources from ethanol, biodiesel, and fuels. Biogas. Accordingly, we conducted this study using date kernel oil as a new source for biofuel extraction, and the results were as follows: oil content of 4 to 5 percent, with a very high acid number of 8.9776, which imposes on us make a reaction of esterification and transesterification. Biodiesel has a 91 percent yield and its properties are close to recognized standards compared to previous studies.
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