Prediction of Molecular Weight By-Boiling-Point Distribution of Middle Distillates from Gas Chromatography鈭扚ield Ionization Mass Spectrometry (GC鈭扚IMS)

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• 作者：Jinwen Chen ; Norma Mclean ; Darcy Hager
• 刊名：Energy & Fuels
• 出版年：2011
• 出版时间：February 17, 2011
• 年：2011
• 卷：25
• 期：2
• 页码：719-726
• 全文大小：1050K
• 年卷期：v.25,no.2(February 17, 2011)
• ISSN：1520-5029

文摘

Molecular weight (MW) and its by-boiling-point distribution are important physical properties of petroleum feedstocks. In this study, a quick and convenient method was developed to determine the MW by-boiling-point distribution using off-the-shelf gas chromatography鈭抐ield ionization mass spectrometry (GC鈭扚IMS) data. A total of 12 middle distillate samples having different boiling ranges and hydrocarbon-type distributions were used to validate the method. Distillation was performed with the 12 samples to obtain 8 boiling fractions for each sample. The MW was then measured with each fraction. The predicted MW by boiling-point distributions matched well with those measured by experiment, with an average deviation of 3.2%, indicating a good capability and predictability of the developed method.