Abstract

The objective was to study changes in nitrogen-saturated biodiesel irradiated by electron beam and to analyse them considering the influence of absorbed dose. Based on the obtained results, it can be concluded that irradiation in presented condition did not affect ester groups in fatty acid methyl esters (FAME) molecules, but slightly influenced on double bonds. After irradiation was observed relatively small change in concentration of methyl esters. Slightly influence can be explained by absorption of radiation by nitrogen present in samples. Therefore, the use of ionizing radiation to improve Rapeseed Methyl Esters (RME) properties can be used only in specific radiation dose range (total ester concentration must not be lower than 96.5 wt%). The reduction in the total concentration of methyl esters was lower than after irradiation of FAME samples saturated with water and air, which was presented in previous works.

摘要

目的是研究电子束辐照下氮饱和生物柴油的变化，并考虑吸收剂量的影响对其进行分析。根据所获得的结果，可以得出结论，当前条件下的辐照不影响脂肪酸甲酯（FAME）分子中的酯基，但对双键有轻微影响。照射后观察到甲酯浓度的相对较小的变化。轻微影响可以通过样品中存在的氮吸收辐射来解释。因此，使用电离辐射改善油菜籽甲酯（RME）性能只能在特定的辐射剂量范围内使用（总酯浓度不得低于96.5 wt%）。