CRYSTALLINE AND HETEROCYCLYC AROMATIC COMPOUNDS IN GEORGIAN PETROLEUM

  • Natela Khetsuriani Doctor, Head of the Petroleum Chemistry laboratory, Chief Research Worker, TSU, Petre Melikishvili Institute of Physical and Organic Chemistry, Laboratory of Petroleum Chemistry, Tbilisi, Georgia
  • Vladimer Tsitsishvili Academy Members, Professor, Chief research worker, TSU, Petre Melikishvili Institute of Physical and Organic Chemistry, Laboratory of Petroleum Chemistry, Tbilisi, Georgia
  • Elza Topuria PhD, Chief research worker, TSU, Petre Melikishvili Institute of Physical and Organic Chemistry, Laboratory of Petroleum Chemistry, Tbilisi, Georgia
  • Irina Mchedlishvili MS, Scientific worker, TSU, Petre Melikishvili Institute of Physical and Organic Chemistry, Laboratory of Petroleum Chemistry, Tbilisi, Georgia
  • Zaza Molodinashvili PhD, Senior research worker, TSU, Petre Melikishvili Institute of Physical and Organic Chemistry, Laboratory of Petroleum Chemistry, Tbilisi, Georgia
DOI: https://doi.org/10.31435/rsglobal_ws/30062021/7612
Keywords: Crude oil, polycyclic aromatics, crystalline components, GC/MC, aniline extracts

Abstract

The individual composition of polycyclic aromatic hydrocarbons has been studied in high boiling (340–590°) fractions of Norio oil (wells 200, 201) which are characterized by high content of aromatic hydrocarbons and high intensity fluorescence. The eluates obtained by adsorption fractionation of aromatic hydrocarbons separated by aniline and concentrates of their crystalline components have been studied by GC, MS and GC-MS methods. For analysis of the obtained data an automated system of mass deconvolution and identification (AMDIS) was used. In the eluates under investigation the following structures were identified: indenes, tetralines, dinaphtilbenzenes, naphthalenes, fluorenes, phenantrenes, antracenes, mono- and polyalkyl derivatives of
naphtofluorene and phenantrene, and terpeniles. In crystal samples of the eluates the banzantracene, chrizene, their methyl-, dimethyl and trymethylanaloges, phenantrene derivatives, antracenes and pyrenes were identified. The heterocyclic analogues of polycyclic aromatic hydrocarbons like
methylbenzoanthracenes, benzonaphthothiophenes, benzocarbazoles and dibenzthiophene were identified in Georgian oils for the first time.

References

Khetsuriani N., Tsitsishvili V., Topuria E., Mikaia A. Study of polycyclic aromatic hydrocarbons of Norio Oil by GC-MS method. Bulletin of Georgian National Academy of Sciences, 2017, v. 11, # 1, pp. 52-57.

Lekveishvili E., Khetsuriani N., Topuria E., Edilashvili I., Usharauli E., Tevdorashvili M., Mchedlishvili I., The high boiling aromatic hydrocarbons in Georgian oils. Georgia Chemical Journal. 2008, v. 8, # 1, pp.25-27 (in Russian).

Khetsuriani N.T., Usharauli E.A., Topuria E.N., Mchedlishvili I.D. Application of mass-spectrometry for study of aromatic structures of high-boiling petroleum compounds. Materials of the IX International Mass Spectrometry Conference on petrochemistry, ecology and food chemistry “PETROMASS-2011”, pp. 128-133, M. (in Russian).

Khetsuriani N.T., Topuria E.N., Murray J.A., Todua N.G., Gonzalez C.A., Mikaia A.I. Study of the composition of polycyclis aromatics in crude oil. Proceedings of the X International Mass Spectrometry Conference on Petrochemistry and Environment, “Petromass 2014”, Publishing House “Universal”, Tbilisi, p. 41-42. ISBN 978-9941-22-378-5.

Todua N., Khetsuriani N., Topuria E., Megutnishvili L., Mayorov A., Mikaia A. Pretreatment of oil samples for GCMS analysis of polycyclic aromatic hydrocarbons and their heteroanalogues. Journal of the American Society for Mass Spectrometry. 2015, May 31-June 4, St.Louis, Missouri, USA, MP 659. ISSN 1044-0305.

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Published
2021-06-09
Citations
How to Cite
Natela Khetsuriani, Vladimer Tsitsishvili, Elza Topuria, Irina Mchedlishvili, & Zaza Molodinashvili. (2021). CRYSTALLINE AND HETEROCYCLYC AROMATIC COMPOUNDS IN GEORGIAN PETROLEUM. World Science, (6(67). https://doi.org/10.31435/rsglobal_ws/30062021/7612
Issue
No 6(67) (2021): World Science
Section
Chemistry

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