Thermal investigation of heavy crude oil by simultaneous TG–DSC–FTIR and EDXRF: Part 1

Present study investigates thermal behavior of two heavy crude oils with different °API values by simultaneous thermogravimetry–differential scanning calorimetry–fourier transform infrared spectroscopy (TG–DSC–FTIR), and an evaluation of the chemical element levels present in the oils’ ashes was don...

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Veröffentlicht in:	Journal of thermal analysis and calorimetry 2013-08, Vol.113 (2), p.525-531
Hauptverfasser:	Mothé, Michelle Gonçalves, Mothé, Cheila Gonçalves, de Carvalho, Carlos Henrique Monteiro, de Oliveira, Marcia Cristina Khalil
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical Chemistry Applied sciences Chemistry Chemistry and Materials Science Crude oil, natural gas and petroleum products Energy Exact sciences and technology Fuels Inorganic Chemistry Measurement Science and Instrumentation Physical Chemistry Polymer Sciences Prospecting and production of crude oil, natural gas, oil shales and tar sands
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Beschreibung
Zusammenfassung:	Present study investigates thermal behavior of two heavy crude oils with different °API values by simultaneous thermogravimetry–differential scanning calorimetry–fourier transform infrared spectroscopy (TG–DSC–FTIR), and an evaluation of the chemical element levels present in the oils’ ashes was done by energy dispersive X-ray fluorescence spectrometry. TG and DSC curves were obtained for two samples in nitrogen atmosphere. Among all inorganic components evaluated, the highest concentration in the two oils was SO 3 . Thus this study may contribute to a better understanding of the thermal behavior of heavy crude oils and their composition.
ISSN:	1388-6150 1588-2926 1572-8943
DOI:	10.1007/s10973-013-3124-1