Skip to main content
SpringerLink
Log in

Influence of pre-oxidation on kerogen concentrate (KC) pyrolysis

A thermal method for kerogen type identification

  • Published:
Journal of thermal analysis Aims and scope Submit manuscript

Abstract

In this study, the rate of pyrolysis and oxidation of 8 different samples of oil shale kerogen concentrate (KC) were investigated using TG/DTG technique. The rate of pyrolysis after preoxidation step performed at low temperature (below 230°C), was also studied. The determined pyrolysis activation energy increases with increasing paraffinic structure in the KC: an opposite effect was determined in the case of oxidation. Comparison of the reaction rate constants of the pyrolysis as well as the oxidation of untreated and pre-oxidized KC samples indicated the basis of the proposed thermal method for kerogen type determination.

Zusammenfassung

Mittels TG/DTG wird die Pyrolyse- und Oxidationsgeschwindigkeit von 8 verschiedenen Ölschieferkerogenkonzentraten (KC) untersucht, ebenso die Pyrolysegeschwindigkeit nach einem Präoxidationsschritt bei niedriger Temperatur (unter 230°C). Die Pyrolyse-Aktivierungsenergie steigt mit zunehmender Paraffinstruktur im KC, ein entgegengesetzter Effekt kann bei der Oxidation beobachtet werden. Ein Vergleich der Reaktionsgeschwindigkeit von Pyrolyse und Oxidation sowohl bei unbehandelten als auch voroxidierten KC-Proben zeigt auf die Basis der empfohlenen thermischen Methode bei Bestimmungen von kerogenen Substanzen.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. C. Durand, ‘Kerogen’, Ed. Technip 27 (1980), 143.

    Google Scholar 

  2. J. Brooks and D. Welte, ‘Advanced in Petroleum Geochemistry’, Vol 1, Academic Press London, 1984.

    Google Scholar 

  3. D. Vitorovic, A. Ambles, S. Bajc, O. Cvetkovic and M. Djordjevic, J. Serb. Chem. Soc., 53(4) (1988) 175.

    Google Scholar 

  4. D. Vitorovic, A. Ambles and M. Djordjevic, Org. Geochem., 6 (1984) 333.

    Google Scholar 

  5. S. Bajc, O. Cvetkovic, A. Ambles, P. Polic and D. Vitorovic, IV Yugoslav Symposium about Bitumen and Asphalt, Dubrovnik 1990.

  6. O. Cvetkovic, S. Bajc, A. Ambles, P. Polic and D. Vitorovic, IV Yugoslav Symposium about Bitumen and Asphalt, Dubrovnik 1990.

  7. M. Rashid Khan, Energy and Fuels, 1 (1987) 4.

    Google Scholar 

  8. V. M. Gorbachev, J. Thermal Anal., 8 (1975) 349.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculty of Technology and Metallurgy, Beograd, Yugoslavia

    D. Skala & S. Korica

  2. Faculty of Science, Institute of Chemistry, Beograd, Yugoslavia

    D. Vitorovic

  3. German Institute for Petroleum Research, Clausthal-Zellerfeld, FRG

    H. J. Neumann

Authors
  1. D. Skala
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. Korica
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. D. Vitorovic
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. J. Neumann
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Skala, D., Korica, S., Vitorovic, D. et al. Influence of pre-oxidation on kerogen concentrate (KC) pyrolysis. Journal of Thermal Analysis 38, 657–664 (1992). https://doi.org/10.1007/BF01979394

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01979394

Keywords

Search

Navigation