Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)

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Stimulation of Low-Temperature Dissolution of Organic Matter of Brown Coal, Composition of Bitumoids

Authors
Sergey Zherebtsov, Kirill Shpakodraev, Natalia Malyshenko, Konstantin Votolin, Zinfer Ismagilov
Corresponding Author
Sergey Zherebtsov
Available Online 5 October 2021.
DOI
10.2991/ahcps.k.211004.016How to use a DOI?
Keywords
Bitumen, Brown coal, Extraction, O-alkylation, Ultrasonic action, Biologically active substances
Abstract

The paper presents data on the yield, chemical composition of bitumen extracted from the brown coal of the Tyulgan deposit. Bitumens were extracted from brown coal by the following methods: I) sequential extraction with ethanol, n-heptane, alcohol-benzene according to the Grefe method, II) low-temperature dissolution of the organic mass of coal (OMC) by alkylation and subsequent extraction of bitumoids; III) stimulation of alkylation by ultrasound and subsequent extraction of bitumoids. It is shown that the use of ultrasonic exposure during the O-alkylation process has a positive effect on the yield of bitumoids - the yield increased to 52%. The obtained samples were studied using the methods of IR spectroscopy, 13C NMR (CPMAS), gas chromatography-mass spectrometry (GC-MS). A number of individual compounds were identified in the composition of bitumen and bitumoids during the study by the GCMS method: gamma-tocopherol, Stigmast-4-en-3-one, beta-Hydroxyallobetulan, 1-Hexadecanol, Oleyl alcohol, etc. Among the identified compounds, various biologically active substances are present.

Copyright
© 2021, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)
Series
Atlantis Highlights in Chemistry and Pharmaceutical Sciences
Publication Date
5 October 2021
ISBN
978-94-6239-436-0
ISSN
2590-3195
DOI
10.2991/ahcps.k.211004.016How to use a DOI?
Copyright
© 2021, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Sergey Zherebtsov
AU  - Kirill Shpakodraev
AU  - Natalia Malyshenko
AU  - Konstantin Votolin
AU  - Zinfer Ismagilov
PY  - 2021
DA  - 2021/10/05
TI  - Stimulation of Low-Temperature Dissolution of Organic Matter of Brown Coal, Composition of Bitumoids
BT  - Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)
PB  - Atlantis Press
SP  - 108
EP  - 117
SN  - 2590-3195
UR  - https://doi.org/10.2991/ahcps.k.211004.016
DO  - 10.2991/ahcps.k.211004.016
ID  - Zherebtsov2021
ER  -