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Determination of octane numbers for clean gasoline using dielectric spectroscopy

机译：用介电光谱法测定清洁汽油的辛烷值

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摘要

In this work, dielectric spectroscopy (DES) in association with partial least squares (PLS) multivariate calibration method was employed to determine octane numbers (research octane number or RON and motor octane number or MON) of clean gasoline samples. The factor number included in PLS model was obtained according to the lowest sum of squares of predicted residual error (PRESS) in calibration set. The performance of the final model was evaluated according to PRESS and correlation coefficient (R). The optimal factor numbers are 9 in both RON and MON PLS calibration models, which were achieved with PRESS = 2.74 and R = 0.9598 in RON calibration set and the lowest PRESS = 2.72 and R = 0.8983 in MON calibration set. In validation set, PRESS = 1.00 and R = 0.9552 for RON and PRESS = 0.47 and R = 0.9105 for MON were obtained. Results indicated that PLS multivariate calibration models based on DES data were proven suitable as a practical analytical method for predicting octane numbers of clean gasoline.
机译：在这项工作中，采用电介质光谱法（DES）结合偏最小二乘（PLS）多元校准方法确定了清洁汽油样品的辛烷值（研究辛烷值或RON和电机辛烷值或MON）。 PLS模型中包含的因子数是根据校准集中预测的残差误差（PRESS）的最小平方和得出的。根据PRESS和相关系数（R）评估最终模型的性能。在RON和MON PLS校准模型中，最佳因子数均为9，这在RON校准集中的PRESS = 2.74和R = 0.9598，而在MON校准集中的最低PRESS = 2.72和R = 0.8983。在验证集中，对于RON获得PRESS = 1.00，R = 0.9552，对于MON获得PRESS = 0.47，R = 0.9105。结果表明，基于DES数据的PLS多变量标定模型被证明是预测清洁汽油辛烷值的实用分析方法。

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  • 来源
    《Fuel》 |2009年第8期|1453-1459|共7页
  • 作者

    L. Guan; X.L. Feng; Z.C. Li; G.M. Lin;

  • 作者单位

    Oil Application and Management Engineering Department, Logistical Engineering University, No. 174 Road Yangtze River 2, ChongQing 400016, China;

    Oil Application and Management Engineering Department, Logistical Engineering University, No. 174 Road Yangtze River 2, ChongQing 400016, China;

    Oil Application and Management Engineering Department, Logistical Engineering University, No. 174 Road Yangtze River 2, ChongQing 400016, China;

    Nanjin Oil Technical Supervision Office, Nanjin, China;

  • 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

    dielectric spectroscopy; octane number; partial least squares; multivariate calibration model; clean gasoline;

    机译：介电谱辛烷值偏最小二乘;多元校正模型清洁汽油;

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