- Tytuł:
-
Analiza procesów zachodzących podczas utleniania estrów metylowych wyższych kwasów tłuszczowych (FAME) oraz oleju napędowego B10 na podstawie danych literaturowych
Analysis of processes occurring during the oxidation of methyl esters of higher fatty acids (FAME) and B10 diesel oil based on literature data - Autorzy:
-
Stanik, Winicjusz
Łaczek, Tomasz - Powiązania:
- https://bibliotekanauki.pl/articles/1834068.pdf
- Data publikacji:
- 2020
- Wydawca:
- Instytut Nafty i Gazu - Państwowy Instytut Badawczy
- Tematy:
-
stabilność oksydacyjna
biopaliwa
estry metylowe wyższych kwasów tłuszczowych (FAME)
inhibitory utleniania
oxidative stability
biofuels
higher fatty acid methyl esters (FAME)
oxidation inhibitor - Opis:
- The article presents information and literature data that were the basis for the analysis of processes and mechanisms of the reaction of oxidation of fatty acid methyl esters (FAME) and B10 diesel oil during long-term storage. Methyl esters of higher fatty acids (FAME) are a mixture of monounsaturated and polyunsaturated FAME molecules. Based on the obtained data, it was shown that polyunsaturated molecules are more susceptible to oxidation, and methylene groups (–CH2–), adjacent to unsaturated carbon atoms in the chain fatty acids are the site of attack and the beginning of the oxidation process. The collected information confirmed that the more unsaturated bonds in the fatty acid chain, the more FAME is prone to oxygen attack and oxidative instability. In addition to the factors resulting from the structure of the higher fatty acid esters molecule FAME and B10 fuel, trace amounts of metal ions play an important role in the oxidation process. It has been confirmed that the presence of metal ions accelerates the oxidation process. The article presents and describes the diagram of the mechanisms of oxidation of polyunsaturated fatty acid esters (FAME) and the second integrated oxidation process of higher fatty acid esters (FAME) with competitive alternative oxidation reactions. B10 diesel oxidation resistance is highly dependent on the oxidation resistance of fatty acid esters (FAME). The oxidative stability of B10 diesel fuel and its propensity to form complex oxidation products is also affected by the quality of diesel fuel itself and the reactivity of the groups that affect the formation of complex oxidation products. Based on the literature data, it was found that the most reactive groups responsible for the formation of fuel insoluble sediments include: hydrocarbons with unsaturated bonds, organic nitrogen and sulfur compounds and organic oxygen-containing compounds. In both discussed cases, i.e. fatty acid esters (FAME) and B10 fuels, in addition to the factors discussed above, the oxidation process is also affected by storage conditions, in particular the concentration of oxidation inhibitors, storage temperature and light exposure and oxygen availability. The final part of the article discusses the effect of oxidation inhibitors on the aging of diesel containing (FAME) during storage.
- Źródło:
-
Nafta-Gaz; 2020, 76, 10; 743-749
0867-8871 - Pojawia się w:
- Nafta-Gaz
- Dostawca treści:
- Biblioteka Nauki
Artykuł