Spectroscopic and chromatographic analysis of oil from an oil shale flash pyrolysis unit

In this investigation, spectroscopic (FT-IR, UV-Vis, H-1 NMR) and chromatographic (GC) techniques were used to analyze two Jordanian shale oils, Sultani and El-Lajjun. The oils were extracted at different pyrolysis temperatures (400-500 degreesC) using a fluidized bed reactor. The spectroscopic and chromatographic analyses show that the variation of pyrolysis temperature has no significant effect on the composition of the produced oil. The H-1 NMR results indicate that the protons of methyl and methelyene represent the bulk of the hydrogen (similar to90%) in most shale oil samples. GC analysis reveals that the oil samples contain n-alkanes with a predominant proportion of n-C-25. (C) 2002 Elsevier Science Ltd. All rights reserved.