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Wyświetlanie 1-3 z 3
Tytuł:
Fatty acid composition as a parameter of using vegetable oils for biofuel production
Autorzy:
Ambrosewicz-Walacik, M.
Tańska, M.
Walacik, M.
Powiązania:
https://bibliotekanauki.pl/articles/134106.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
vegetable oils
quality
fatty acids composition
biofuels production
niekonwencjonalne oleje roślinne
jakość
skład kwasów tłuszczowych
produkcja biopaliw
Opis:
The aim of the study was to show the validity of determining the quality of oils intendent for the biofuels production. One of the main discriminant that should be used to assess the suitability of oil raw materials for the fuel purposes is the composition of fatty acids. The research was conducted on 13 different samples of vegetable oils, that were cold-pressed from the seeds of various species, including rape, camelina, flax (light and dark), mustard, milk thistle, hemp, evening primrose oil, amaranth, sunflower, soybean, and cumin. The analysis of the fatty acid composition showed significant differences between the analysed oil samples, both within the species and varieties of oilseeds. The results indicate the need for continuous quality control of oils and fats led to the production of biodiesel in the small households and large commercial enterprises, because as it was indicated by the analysis of fatty acids composition rape seeds of different varieties are characterized by the diverse quality.
Źródło:
Combustion Engines; 2017, 56, 2; 38-42
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unconventional vegetable oils as raw materials for biodiesel production
Autorzy:
Ambrosewicz-Walacik, M.
Tańska, M.
Walacik, M.
Kozłowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/133654.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
unconventional vegetable oils
quality
fatty acids composition
biofuels production
niekonwencjonalne oleje roślinne
jakość
skład kwasów tłuszczowych
produkcja biopaliw
Opis:
The aim of the study was to determine the possibility of using the unconventional vegetable oils for the biofuel production. The research material were cold-pressed oils from the seeds of milk thistle, hemp and evening primrose. After conducting the initial physicochemical characteristics of oil samples, including the determination of sulphur content, acid number, viscosity at 40°C, density at 15ºC, oxidation stability and fatty acid composition, analysed oils have been subjected to the transesterification process. The roduced methyl esters were further characterized by the above-mentioned features. Additionally, the temperatures of cold filter plugging point, cloud point and flash point were determined. On the basis of the conducted analyses it was demonstrated that the obtained oils, due to the high, far in excess of acceptable, values of the viscosity and density, and too low oxidative stability could not be used as a pure fuel. A similar conclusion was formulated in case of the produced methyl esters.
Źródło:
Combustion Engines; 2017, 56, 1; 197-200
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of the ultrasounds treatment on frying oils intended for biodiesel production
Autorzy:
Ambrosewicz-Walacik, M.
Szostak, P.
Nitkiewicz, S.
Tańska, M.
Walacik, M.
Powiązania:
https://bibliotekanauki.pl/articles/245084.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
frying oil
ultrasounds
fatty acids composition
transesterification
yield of biodiesel
Opis:
The aim of the study was to determine the ultrasounds treatment of frying oil on their properties important in order to biodiesel production. The research material was a frying oil, which prior to transesterification oil was treated with ultrasounds (37 kHz) during 15, 30 and 60 min. In next step, prepared samples were analysed in terms of fatty acid composition, acid value, FFA % and then subjected to alkali transesterification process. After producing methyl esters the yield of biodiesel was analysed with thin liquid chromatography technique (TLC), and then samples were characterized in terms of viscosity in 40 °C, density at 15 °C, acid value, sulphur content and flash point. The results showed that an ultrasonic treatment had a little impact on the fatty acid composition of the test samples. The yield of biodiesel was the higher the longer time of ultrasounds treatment were used. One the other hand, determined with thin liquid chromatography technique yield of biodiesel was the higher the longer time of ultrasounds treatment were used. What is more, the ultrasounds treatment of oil before transesterification process had no impact on viscosity, density and acid value of these samples, while flash point values and sulphur content were changed.
Źródło:
Journal of KONES; 2016, 23, 3; 19-24
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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