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[72390] Artykuł: Determination of the impact of the type of sunflower oil used for production of biofuels on the fractional composition of SFMECzasopismo: ТЕKA. COMMISSION OF MOTORIZATION AND ENERGETICS IN AGRICULTURE Tom: 17, Zeszyt: 2, Strony: 91-95ISSN: 1641-7739 Opublikowano: 2017 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w recenzowanym czasopiśmie wymienionym w wykazie ministra MNiSzW (część B) Punkty MNiSW: 8 ![]() ![]() Keywords: biodiesel SFME  biopaliwo  diesel engine  fractional composition  temperature distillation  |
The aim of the study was to determine the impact of the frying process on the fractional composition of SFME Biodiesel in comparison to the SFME obtained from unused (fresh) sunflower oil. The freshly pressed sunflower oil was divided into two portions. One was used for frying potato slices at 210°C for a period of 3 hours. The study showed the SFME biodiesel produced from unused (pure) sunflower oil generally has better distillation properties. The temperatures at the start of distillation were similar for both of the SFMEs. Within the 20-70% mid-range temperatures, the SFME produced from the used cooking sunflower oil was characterized by higher distillation temperatures for the same volume of fuel. The largest differences were observed for distillation temperatures from 85% to 100% and the final temperature of the distillation process. This may testify to lower purity of the SFME produced from the used cooking oil. In such a biofuel there may be more less volatile mono- and diglycerides or other chemicals which e.g. remain in the oil after frying. It must be said, though, these are not solid particles, as those were separated from the oil through filtration.