LAPSE:2020.1070
Published Article
LAPSE:2020.1070
Heavy Oil Hydrocarbons and Kerogen Destruction of Carbonate−Siliceous Domanic Shale Rock in Sub- and Supercritical Water
October 26, 2020
This paper discusses the results of the influences of subcritical (T = 320 °C; P = 17 MPa) and supercritical water (T = 374 °C; P = 24.6 MPa) on the yield and composition of oil hydrocarbons generated from carbonaceous−siliceous Domanic shale rocks with total organic content (Corg) of 7.07%. It was revealed that the treatment of the given shale rock in sub- and supercritical water environments resulted in the decrease of oil content due to the intensive gas formation. The content of light hydrocarbon fractions (saturated and aromatic hydrocarbons) increased at 320 °C from 33.98 to 39.63%, while at 374 °C to 48.24%. Moreover, the content of resins decreased by almost twice. Insoluble coke-like compounds such as carbene−carboids were formed due to decomposition of kerogen after supercritical water treatment. Analysis of oil hydrocarbons with FTIR method revealed a significant number of oxygen-containing compounds, which are the hydrogenolysis products of structural fragments formed after destruction of kerogen and high-molecular components of oil. The gas chromatography−mass spectroscopy (GC−MS) method was applied to present the changes in the composition of mono- and dibenzothiophenes, which indicate conversion of heavy components into lighter aromatic hydrocarbons. The specific features of transforming trace elements in rock samples, asphaltenes, and carbene−carboids were observed by using the isotopic mass-spectrometry method.
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Keywords
Domanic rock, heavy hydrocarbons, heavy oil, kerogen, organic matter, shale, sub- and supercritical water
Subject
Suggested Citation
Nasyrova ZR, Kayukova GP, Vakhin AV, Djimasbe R, Chemodanov AE. Heavy Oil Hydrocarbons and Kerogen Destruction of Carbonate−Siliceous Domanic Shale Rock in Sub- and Supercritical Water. (2020). LAPSE:2020.1070
Author Affiliations
Nasyrova ZR: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia [ORCID]
Kayukova GP: Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Akademika Arbuzova, 420088 Kazan, Russia
Vakhin AV: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
Djimasbe R: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
Chemodanov AE: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
Kayukova GP: Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Akademika Arbuzova, 420088 Kazan, Russia
Vakhin AV: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
Djimasbe R: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
Chemodanov AE: Institute of Geology and Oil and Gas Technologies, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
Journal Name
Processes
Volume
8
Issue
7
Article Number
E800
Year
2020
Publication Date
2020-07-08
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8070800, Publication Type: Journal Article
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Published Article
LAPSE:2020.1070
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doi:10.3390/pr8070800
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Version History
[v1] (Original Submission)
Oct 26, 2020
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Oct 26, 2020
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https://psecommunity.org/LAPSE:2020.1070
Original Submitter
Calvin Tsay
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