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首页> 外文期刊>Fuel >Long term storage of biodiesel/petrol diesel blends in polyethylene fuel tanks
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Long term storage of biodiesel/petrol diesel blends in polyethylene fuel tanks

机译：将生物柴油/汽油柴油混合物长期保存在聚乙烯燃料箱中

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摘要

This paper explores the long-term effects that an ageing biodiesel fuel blended with low sulfur diesel fuel at concentrations of 0%, 15%, 50%, 85%, and 100% (v/v) can have on polyethylene materials. Rotationally molded fuel tanks made of linear low density polyethylene or crosslinked polyethylene were used to appropriately mimic the storage environment of fuels, though the study also considered immersed polymer specimens as this test approach is more commonly reported on in the literature. The extent of oxidation for the fuels was monitored by determination of its peroxide value and acid number over time, with both values being consistently higher for blends with higher biodiesel content. Storage at 80 ℃ for up to 56 days resulted in significant oxidation of the fuel while testing up to 380 days at 23 ℃ produced no change in peroxide or acid concentration. The change in mechanical properties for the polyeth-ylenes due to fuel was determined by tensile testing. Comparing the tensile data to the oxidation species in the stored fuels revealed that noted mechanical losses did not correspond with higher concentration of hydroperoxides or acid species but rather occurred as a result of fuel absorption. No difference was found in this regards between the two polyethylene species.
机译：本文探讨了老化的生物柴油燃料与浓度为0％，15％，50％，85％和100％（v / v）的低硫柴油混合后对聚乙烯材料的长期影响。由线性低密度聚乙烯或交联聚乙烯制成的旋转模塑燃料箱可用于适当地模拟燃料的储存环境，尽管该研究还考虑了浸没聚合物样品，因为这种测试方法在文献中更为普遍。通过测定其过氧化物值和酸值随时间的变化来监测燃料的氧化程度，对于具有较高生物柴油含量的混合物，这两个值始终较高。在80℃下储存长达56天会导致燃料明显氧化，而在23℃下长达380天的测试则不会产生过氧化物或酸浓度的变化。通过拉伸试验确定由于燃料引起的聚乙烯的机械性能变化。将拉伸数据与储存的燃料中的氧化物质进行比较后发现，明显的机械损失并不与较高浓度的氢过氧化物或酸物质相对应，而是由于吸收燃料而发生的。两种聚乙烯在这方面没有发现差异。

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  • 来源
    《Fuel》 |2013年第6期|771-779|共9页
  • 作者

    M.R. Thompson; B. Mu; C.M. Ewaschuk; Y. Cai; K.J. Oxby; J. Vlachopoulos;

  • 作者单位

    MMRI/CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7;

    MMRI/CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7;

    MMRI/CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7;

    MMRI/CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7;

    MMRI/CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7;

    MMRI/CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biodiesel; polyethylene; compatibility; storage; oxidation;

    机译：生物柴油聚乙烯兼容性;存储;氧化;

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