ESTONIAN ACADEMY
PUBLISHERS
eesti teaduste
akadeemia kirjastus
PUBLISHED
SINCE 1984
 
Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
Impact Factor (2020): 0.934

COMPARATIVE CHARACTERIZATION OF ORGANIC MATTER OF OIL SHALES FROM THE MAIN DEPOSITS IN BULGARIA; pp. 305–317

Full article in PDF format | https://doi.org/10.3176/oil.2019.2.04

Authors
MARIA RAZVIGOROVA, TEMENUZHKA BUDINOVA, BOYKO TSYNTSARSKI, BILYANA PETROVA, NARTZISLAV PETROV, IVANKA STOYCHEVA

Abstract

The organic matter of oil shale samples from four major Bulgarian deposits was investigated using thermal and oxidative treatments. Neutral oils from oil shales were obtained by low-temperature pyrolysis. Gas chromatography-mass spectrometry (GC-MS) was used to study the oxida­tion products and their chemical composition. A stepwise alkaline permanganate degradation of oil shale concentrate at ambient temperature was carried out, affording a high total yield (90 %) of oxidation products and a minimum yield of gas products. Two different types of high molecular substances were detected in oil shales. The results allowed conclusions to be made about the utilization of prospective Bulgarian oil shale deposits as energy sources.


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