Characterization of Bulgarian oil shale kerogen revealed by oxidative degradation


Budinova T., RAZVIGOROVA M., TSYNTSARSKI B., PETROVA B., Ekinci E., Yardım M. F.

CHEMIE DER ERDE-GEOCHEMISTRY, vol.69, no.3, pp.235-245, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 69 Issue: 3
  • Publication Date: 2009
  • Doi Number: 10.1016/j.chemer.2009.04.001
  • Title of Journal : CHEMIE DER ERDE-GEOCHEMISTRY
  • Page Numbers: pp.235-245

Abstract

A 13-step alkaline permanganate degradation of Bulgarian oil shale kerogen concentrate at ambient temperature was carried out. A high yield of oxidation products (90.1%) and a low yield of gaseous products (2.79%) were obtained. IR and H-1 NMR spectroscopic studies have shown that two significantly different types of high molecular products are present in kerogen. Further oxidation of these structures leads to the formation of low molecular aliphatic and aromatic acids, proven by gas chromotography (GC) and gas chromatography-mass spectrometry (GC-MS). The data obtained at these mild conditions allow us to acquire detailed information about the aromatic structures and polymethylene chain lengths in kerogen.