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Impact of PME Over Crystals Formation and Rig Test Performances Degradation

机译：PME对晶体形成和钻机测试表演的影响降低

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摘要

The use of biodiesel has risen worldwide in the last decade. Different countries use different biodiesel feedstocks which will depend on the resources available locally. Some problems due to biodiesel content and feedstock quality have been pointed out in the literature, which include cold flow properties issues of several methyl esters, especially Palm Methyl Ester (PME). The present work was carried out on diesel-biodiesel blends from 0 to 30%v/vPME in order to evaluate the impact of crystals formation on fuel filter plugging using a rig test. The fuel was maintained at 5°C and 20°C during soaking. The crystal particles formation was evaluated by the Turbiscan technique (based on multiple light scattering with near infra-red light), followed by particles mass weight determination by filtration. The fuel was then evaluated in the test rig until performances degradation in terms of fuel flow rate and filter pressure drop. Results show particles formation and aggregation during soaking. Also, the rig test has pointed out a fuel flow rate decrease at low load engine conditions.
机译：在过去十年中，使用生物柴油在全球范围内升起。不同国家使用不同的生物柴油原料，这将取决于当地可用的资源。在文献中指出了由于生物柴油含量和原料质量引起的一些问题，包括几种甲酯的冷流动性能，特别是棕榈甲酯（PME）。本作本作在柴油生物柴油共混物中进行0至30％v / VPME，以评估晶体形成对使用钻机测试的燃料过滤器堵塞的影响。在浸泡期间将燃料保持在5℃和20℃。通过涡轮机技术（基于近红外线光的多光散射）评估晶体颗粒，然后通过过滤测定颗粒质量重量。然后在试验机中评估燃料，直到在燃料流速和滤波压力下降方面进行降低。结果在浸泡过程中显示颗粒形成和聚集。而且，钻机测试已经指出了低负荷发动机条件下的燃料流量降低。

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