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

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Abstract

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 SO3. Thus this study may contribute to a better understanding of the thermal behavior of heavy crude oils and their composition.

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Acknowledgments

The authors would like to thank Petrobras, the Brazilian Council for Scientific and Technological Development (CNPq) and the Brazilian Federal Agency for Support and Evaluation of Graduate Education (CAPES) for their financial support and NETZSCH-Geratebau GmbH Applications Laboratory.

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Authors and Affiliations

  1. School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21949900, Brazil

    Michelle Gonçalves Mothé & Cheila Gonçalves Mothé

  2. Petrobras R&D Center-CENPES, Rio de Janeiro, 20035900, Brazil

    Carlos Henrique Monteiro de Carvalho & Marcia Cristina Khalil de Oliveira

Authors
  1. Michelle Gonçalves Mothé
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  2. Cheila Gonçalves Mothé
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  3. Carlos Henrique Monteiro de Carvalho
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  4. Marcia Cristina Khalil de Oliveira
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Correspondence to Cheila Gonçalves Mothé.

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Mothé, M.G., Mothé, C.G., de Carvalho, C.H.M. et al. Thermal investigation of heavy crude oil by simultaneous TG–DSC–FTIR and EDXRF. J Therm Anal Calorim 113, 525–531 (2013). https://doi.org/10.1007/s10973-013-3124-1

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  • DOI: https://doi.org/10.1007/s10973-013-3124-1

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