Prediction of Molecular Weight By-Boiling-Point Distribution of Middle Distillates from Gas Chromatography−Field Ionization Mass Spectrometry (GC−FIMS)

Energy Fuels, 2011, 25 (2), pp 719–726
Prediction of Molecular Weight By-Boiling-Point Distribution of Middle Distillates from Gas Chromatography−Field Ionization Mass Spectrometry (GC−FIMS)
Jinwen Chen*, Norma Mclean, and Darcy Hager
jichen@nrcan.gc.ca
CanmetENERGY, Natural Resources Canada, 1 Oil Patch Drive, Devon, Alberta T9G 1A8, Canada
Abstract
Molecular weight (MW) and its by-boiling-point distribution are important physical properties of petroleum feedstocks. Authors develop a quick and convenient method to determine the MW by-boiling-point distribution using off-the-shelf gas chromatography−field ionization mass spectrometry (GC−FIMS) data.
The method was validated using 12 middle distillate samples having different boiling ranges and hydrocarbon-type distributions. Eight boiling fractions were obtained 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.
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