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Measurement of biodiesel concentration in a diesel oil mixture

机译:柴油混合物中生物柴油浓度的测量

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After the development and consolidation of automotive ethanol technology in the last thirty years, Brazil is starting the development of biodiesel technology pushed by the coming oil crisis. Since, the Brazilian biodiesel law sets the percentiles of biodiesel mixed in diesel oil 2% after 2008, and to 5% after 2013, the development of a method to measure such mixture percentiles becomes necessary. We present a method of measurement that covers the full range of mixtures (0-100%) of biodiesel in diesel oil using mid infrared spectroscopy. We show that the carbonyl (C=O) absorption peak, which is present only in biodiesel, presents power law proportionality with mixture per-centile of 0.889 for peak area and 0.841 for peak height, respectively. Therefore it becomes possible to measure mixture percentiles of biodiesel in diesel oil, even at very low concentrations, allowing quality control and law enforcement.
机译:在过去三十年中开发和整合了汽车乙醇技术之后,在即将来临的石油危机的推动下,巴西开始了生物柴油技术的开发。由于巴西的生物柴油法将柴油中混合的生物柴油的百分位数在2008年之后设定为2%,而在2013年之后设定为5%,因此有必要开发一种测量此类混合百分数的方法。我们提出一种使用中红外光谱法测量涵盖柴油中生物柴油的所有混合物(0-100%)的完整范围的方法。我们表明,仅存在于生物柴油中的羰基(C = O)吸收峰呈现出幂律比例,其峰面积的混合百分数分别为0.889和峰高的0.841。因此,即使在非常低的浓度下,也可以测量柴油中生物柴油的混合百分位数,从而可以进行质量控制和执法。

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