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测定了橡胶籽油的物化性能及组成.加入6种抗氧化剂,采用Rancimat法研究了其添加量及复配、温度、0#柴油添加量、金属铜、铁等对橡胶籽油生物柴油氧化稳定性能的影响.结果表明,橡胶籽油所制生物柴油不饱和脂肪酸含量达82.1%,诱导期为0.81 h,达不到国家标准(6 h).6种抗氧化剂在添加量为4000×10-6(w)时对橡胶籽油生物柴油的氧化稳定性能均有提升,其中TBHQ效果最好,使其氧化稳定性诱导期达13.09 h,6种抗氧化剂的抗氧化效果为TBHQ>BHT>D-TBHQ>OG>PG>BHA.PG与其他抗氧化剂复配后效果较好,而TBHQ与其他抗氧化剂复配后效果降低.温度和0#轻柴油添加量对橡胶籽油生物柴油的氧化稳定性能影响很大,随温度升高,诱导期明显缩短,而随0#柴油添加量增大,诱导期增加,添加量较大时诱导期增幅很大.铁、铜对其氧化稳定性能也有一定影响.
The physical and chemical properties and composition of rubber seed oil were determined. Six kinds of antioxidants were added. The Rancimat method was used to study the effects of the addition amount, compounding temperature, 0 # diesel oil, copper and iron on the oxidative stability of biodiesel The results showed that the content of unsaturated fatty acid in biodiesel produced by rubber seed oil reached 82.1% and the induction period was 0.81 h, which was less than the national standard (6 h) 6 (w) increased the oxidation stability of rubber seed oil biodiesel, of which TBHQ the best effect, the oxidation stability of induction period of 13.09 h, the six antioxidants antioxidant TBHQ> BHT> D -TBHQ> OG> PG> BHA.PG was better than other antioxidants, while the effect of TBHQ and other antioxidants was decreased.Temperature and the amount of 0 # light diesel added to the oxidation stability of rubber seed oil biodiesel The effect is very big, with the increase of temperature, the induction period is obviously shortened, but with the increase of 0 # diesel oil, the induction period is increased, and the induction period increases greatly when the addition amount is larger. Iron and copper also have certain oxidation stability influences.