红外光谱法用于快速测定车用柴油酸度等性质的研究

石油炼制与化工 ›› 2020, Vol. 51 ›› Issue (2): 87-92.

红外光谱法用于快速测定车用柴油酸度等性质的研究

安谧,杨晓彦,赫丽娜,张婧元,王艳斌

中国石油石油化工研究院

收稿日期:2019-07-02 修回日期:2019-09-23 出版日期:2020-02-12 发布日期:2020-02-27
通讯作者: 安谧 E-mail:285723973@qq.com
基金资助:

FAST DETERMINATION OF ACIDITY AND OTHER PROPERTIES OF DIESEL BY INFRARED SPECTROSCOPY

Received:2019-07-02 Revised:2019-09-23 Online:2020-02-12 Published:2020-02-27
Supported by:

摘要/Abstract

摘要： 针对车用柴油酸度等性质测定过程繁琐，采用衰减全反射样品池测定车用柴油的红外光谱，用偏最小二乘法（PLS）建立红外光谱测定车用柴油酸度、密度、闪点和凝点的4个校正模型，验证标准误差分别为0.46 mg/(100 mL),0.77kg/m3,2.60 ℃,2.77 ℃，该方法符合标准方法再现性要求。与标准方法相比，该方法具有无需预处理、操作简单、测量快速、重复性好等优点。

关键词: 车用柴油, 酸度, 偏最小二乘法, 红外光谱, 密度, 闪点, 凝点

Abstract: To fast determine the acidity and other properties of the automotive diesel, the attenuated total reflection sample cell was used to obtain the infrared spectra of the samples. The IR spectra were further analyzed with partial least squares (PLS) to establish four calibration models, which were used to determine the acidity, density, flash point and freezing point of diesel fuel samples. The validation standard errors were 0.46 mg/(100 mL), 0.77 kg/m3, 2.60 ℃ and 2.77 ℃, respectively. The method meets the requirements of the reproducibility of standard method. Compared with the standard method, the new established method showed the advantages of no pretreatment, simpler process, shorter test time and better repeatability.

Key words: automotive diesel fuel, acidity, partial least squares, infrared spectroscopy, density, flash point, freezing point

中图分类号:

安谧杨晓彦赫丽娜张婧元王艳斌. 红外光谱法用于快速测定车用柴油酸度等性质的研究[J]. 石油炼制与化工, 2020, 51(2): 87-92.

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