Abstract
Characterization of petroleum samples in terms of boiling point distributions is at the core of the oil business. In addition, knowledge of chemical properties like molecular weight (MW) and hydrocarbon group-type as well as class-type distributions are also important parameters for monitoring upgrading processes. This work studied the feasibility of using gas chromatography coupled to flame ionization and mass spectrometry detection (GC-FID-MS) for providing all the former mentioned parameters in a fast and simple simultaneous approach that requires less than 1 h for completion. Comparison with routine thin layer chromatography with flame ionization detection (TLC-FID) and standardized supercritical fluid chromatography (SFC) for hydrocarbon group and class-type analyses validated the approach and, furthermore, allowed one to highlight advantages or disadvantages for the compared techniques. Upgrading processes carried out with atmospheric and vacuum distillate feedstocks were monitored with the mentione...
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