Composition of Hydrocarbon Gases Formed by Dry Pysolysis of Domanik Shale Kerogen after Hydrothermal Experiment
- Authors: Bushnev D.A.1, Burdel'naya N.S.1, Il'chenko A.A.1, Sennikova Y.D.1,2
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Affiliations:
- Institute of Geology, Komi Scientific Center, Ural Branch, Russian Academy of Sciences
- Pitirim Sorokin Syktyvkar State University
- Issue: Vol 63, No 5 (2023)
- Pages: 671-678
- Section: Articles
- URL: https://journals.rcsi.science/0028-2421/article/view/249596
- DOI: https://doi.org/10.31857/S0028242123050052
- EDN: https://elibrary.ru/RZNDDU
- ID: 249596
Cite item
Abstract
The composition of hydrocarbon gases formed by pyrolysis of residual Domanik shale kerogen at 800°C, preceded by hydrothermal treatment at 250–375°С, was studied by pyrolytic gas chromatography. Starting from the autoclave temperature of 320–325°C, the hydrothermal treatment of the shale affects the kerogen structures responsible for the formation of C2+ gases in pyrolysis at 800°C. An increase in the temperature of the shale hydrothermal treatment leads to a monotonic increase in the С1/С2+ ratio in the products of the residual kerogen pyrolysis at 800°C. The methane yield at 800°C does not correlate with the content of alkyl structures, determined in kerogen by IR spectroscopy, and the yield of С2+ gases linearly correlates with the content of alkyl structures.
About the authors
D. A. Bushnev
Institute of Geology, Komi Scientific Center, Ural Branch, Russian Academy of Sciences
Email: boushnev@geo.komisc.ru
Komi Republic, 167982, Syktyvkar, Russia
N. S. Burdel'naya
Institute of Geology, Komi Scientific Center, Ural Branch, Russian Academy of Sciences
Email: petrochem@ips.ac.ru
Komi Republic, 167982, Syktyvkar, Russia
A. A. Il'chenko
Institute of Geology, Komi Scientific Center, Ural Branch, Russian Academy of Sciences
Email: petrochem@ips.ac.ru
Komi Republic, 167982, Syktyvkar, Russia
Ya. D. Sennikova
Institute of Geology, Komi Scientific Center, Ural Branch, Russian Academy of Sciences; Pitirim Sorokin Syktyvkar State University
Author for correspondence.
Email: petrochem@ips.ac.ru
Komi Republic, 167982, Syktyvkar, Russia; Komi Republic, 167001, Syktyvkar, Russia
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