The influence of pyrolysis type on shale oil generation and its composition (Upper layer of Aleksinac oil shale, Serbia)

2017
Authors
Gajica, Gordana
Šajnović, Aleksandra

Stojanović, Ksenija

Antonijević, Milan D.

Aleksić, Nikoleta M.
Jovančićević, Branimir

Article (Published version)
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The influence of pyrolysis type on the shale oil generation and its composition was studied. Different methods such as Rock-Eval pyrolysis, thermogravimetric analysis (TGA) and pyrolysis in the open and closed systems were applied. Samples from the Upper layer of Aleksinac oil shale (Serbia) were used as a substrate and first time characterized in detail. The impact of kerogen content and type on the shale oil generation in different pyrolysis systems was also estimated. Majority of the analysed samples have total organic carbon content >5 wt. % and contain oil prone kerogen types I and/or II. Therefore, they can be of particular interest for the pyrolytic processing. The thermal behaviour of analysed samples obtained by TGA is in agreement with Rock-Eval parameters. The pyrolysis of oil shale in the open system gives higher yield of shale oil than the pyrolysis in the closed system. The yield of hydrocarbons (HCs) in shale oil produced by the open pyrolysis system corresponds to an ex...cellent source rock potential, while HCs yield from the closed system indicates a very good source rock potential. The kerogen content has a greater impact on the shale oil generation than kerogen type in the open pyrolysis system, while kerogen type plays a more important role on the generation of shale oil than the kerogen content in the closed system. The composition of the obtained shale oil showed certain undesirable features, due to the relatively high contents of olefinic HCs (open system) and polar compounds (closed system), which may require further treatment to be used.
Keywords:
Aleksinac oil shale / Rock-Eval / thermogravimetry / open/closed pyrolysis system / shale oilSource:
Journal of the Serbian Chemical Society, 2017, 82, 12, 1461-1477Publisher:
- Serbian Chemical Soc, Belgrade
Funding / projects:
- Geochemical investigations of sedimentary rocks - fossil fuels and environmental pollutants (RS-176006)
DOI: 10.2298/JSC170421064G
ISSN: 0352-5139
WoS: 000419391700011
Scopus: 2-s2.0-85040027579
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IHTMTY - JOUR AU - Gajica, Gordana AU - Šajnović, Aleksandra AU - Stojanović, Ksenija AU - Antonijević, Milan D. AU - Aleksić, Nikoleta M. AU - Jovančićević, Branimir PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2105 AB - The influence of pyrolysis type on the shale oil generation and its composition was studied. Different methods such as Rock-Eval pyrolysis, thermogravimetric analysis (TGA) and pyrolysis in the open and closed systems were applied. Samples from the Upper layer of Aleksinac oil shale (Serbia) were used as a substrate and first time characterized in detail. The impact of kerogen content and type on the shale oil generation in different pyrolysis systems was also estimated. Majority of the analysed samples have total organic carbon content >5 wt. % and contain oil prone kerogen types I and/or II. Therefore, they can be of particular interest for the pyrolytic processing. The thermal behaviour of analysed samples obtained by TGA is in agreement with Rock-Eval parameters. The pyrolysis of oil shale in the open system gives higher yield of shale oil than the pyrolysis in the closed system. The yield of hydrocarbons (HCs) in shale oil produced by the open pyrolysis system corresponds to an excellent source rock potential, while HCs yield from the closed system indicates a very good source rock potential. The kerogen content has a greater impact on the shale oil generation than kerogen type in the open pyrolysis system, while kerogen type plays a more important role on the generation of shale oil than the kerogen content in the closed system. The composition of the obtained shale oil showed certain undesirable features, due to the relatively high contents of olefinic HCs (open system) and polar compounds (closed system), which may require further treatment to be used. PB - Serbian Chemical Soc, Belgrade T2 - Journal of the Serbian Chemical Society T1 - The influence of pyrolysis type on shale oil generation and its composition (Upper layer of Aleksinac oil shale, Serbia) VL - 82 IS - 12 SP - 1461 EP - 1477 DO - 10.2298/JSC170421064G ER -
@article{ author = "Gajica, Gordana and Šajnović, Aleksandra and Stojanović, Ksenija and Antonijević, Milan D. and Aleksić, Nikoleta M. and Jovančićević, Branimir", year = "2017", abstract = "The influence of pyrolysis type on the shale oil generation and its composition was studied. Different methods such as Rock-Eval pyrolysis, thermogravimetric analysis (TGA) and pyrolysis in the open and closed systems were applied. Samples from the Upper layer of Aleksinac oil shale (Serbia) were used as a substrate and first time characterized in detail. The impact of kerogen content and type on the shale oil generation in different pyrolysis systems was also estimated. Majority of the analysed samples have total organic carbon content >5 wt. % and contain oil prone kerogen types I and/or II. Therefore, they can be of particular interest for the pyrolytic processing. The thermal behaviour of analysed samples obtained by TGA is in agreement with Rock-Eval parameters. The pyrolysis of oil shale in the open system gives higher yield of shale oil than the pyrolysis in the closed system. The yield of hydrocarbons (HCs) in shale oil produced by the open pyrolysis system corresponds to an excellent source rock potential, while HCs yield from the closed system indicates a very good source rock potential. The kerogen content has a greater impact on the shale oil generation than kerogen type in the open pyrolysis system, while kerogen type plays a more important role on the generation of shale oil than the kerogen content in the closed system. The composition of the obtained shale oil showed certain undesirable features, due to the relatively high contents of olefinic HCs (open system) and polar compounds (closed system), which may require further treatment to be used.", publisher = "Serbian Chemical Soc, Belgrade", journal = "Journal of the Serbian Chemical Society", title = "The influence of pyrolysis type on shale oil generation and its composition (Upper layer of Aleksinac oil shale, Serbia)", volume = "82", number = "12", pages = "1461-1477", doi = "10.2298/JSC170421064G" }
Gajica, G., Šajnović, A., Stojanović, K., Antonijević, M. D., Aleksić, N. M.,& Jovančićević, B.. (2017). The influence of pyrolysis type on shale oil generation and its composition (Upper layer of Aleksinac oil shale, Serbia). in Journal of the Serbian Chemical Society Serbian Chemical Soc, Belgrade., 82(12), 1461-1477. https://doi.org/10.2298/JSC170421064G
Gajica G, Šajnović A, Stojanović K, Antonijević MD, Aleksić NM, Jovančićević B. The influence of pyrolysis type on shale oil generation and its composition (Upper layer of Aleksinac oil shale, Serbia). in Journal of the Serbian Chemical Society. 2017;82(12):1461-1477. doi:10.2298/JSC170421064G .
Gajica, Gordana, Šajnović, Aleksandra, Stojanović, Ksenija, Antonijević, Milan D., Aleksić, Nikoleta M., Jovančićević, Branimir, "The influence of pyrolysis type on shale oil generation and its composition (Upper layer of Aleksinac oil shale, Serbia)" in Journal of the Serbian Chemical Society, 82, no. 12 (2017):1461-1477, https://doi.org/10.2298/JSC170421064G . .