KFU. Card publication. Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions

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HYDROTHERMAL UPGRADING OF HEAVY OIL IN THE PRESENCE OF WATER AT SUB-CRITICAL, NEAR-CRITICAL AND SUPERCRITICAL CONDITIONS

Form of presentation

Articles in international journals and collections

Year of publication

2020

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Authors, employees of KFU

Abbas Khamid Ibrakhim Abbas , author

Al-Muntaser Amin Akhmed Mokhammed , author

Akhmadiyarov Aydar Anfisovich, author

Varfolomeev Mikhail Alekseevich, author

Klochkov Vladimir Vasilevich, author

Rakhmatullin Ilfat Zufarovich, author

Suveyd Munir Abdo Mokhammed , author

Feoktistov Dmitriy Aleksandrovich, author

Chemodanov Artem Evgenevich, author

Yuan Chengdong , author

Other authors

Domínguez-Álvarez E. , author

Amerkhanov Marat I., author

Bibliographic description in the original language

A.A. Al-Muntaser, M.A. Varfolomeev, M.A. Suwaid, C. Yuan, A.E. Chemodanov, D.A. Feoktistov, I.Z. Rakhmatullin, M. Abbas, E. Domínguez-Álvarez, A.A. Akhmadiyarov, V.V. Klochkov, M.I. Amerkhanov. Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions, Journal of Petroleum Science and Engineering, 2020, 184, 106592

Annotation

In this study, the hydrothermal upgrading (HTU) of high sulfur-content heavy oil was investigated at sub-critical (Sub-CW), near-critical (NCW) and supercritical water (SCW) conditions. Products obtained after HTU, including gases, liquid, and coke (if formed), were analyzed to understand the upgrading performance at different conditions. At Sub-CW (200, 250, and 300 C), 250 C is the optimum temperature where a viscosity reduction from 2073 to 1758 mPa s was achieved with a slight removal of sulfur (mainly sulfur) and the generation of a small amount of light and non-condensable hydrocarbons in gas phase (C1–C4, isoalkanes and alkenes, H2S, CO2 and H2, etc.). At NCW (350 C) and SCW (400 C), heavy oil was upgraded into light oil with a significant removal of heteroatoms, an increase of saturates content, a reduction of aromatics, resins and asphaltenes contents, and a high yield of light gaseous hydrocarbons (mainly methane). Simultaneously, each SARA fraction was also greatly ameliorated: the content of light alkanes with low molecular weight in saturates was increased, diaromatics content in aromatics was increased with a reduction of polyaromatics content, aromatics-type carbon atoms in resins was increased with a decrease in aliphatic hydrocarbons. Moreover, MALDI-TOF measurements of asphaltenes show that the molecular weights of asphaltenes were reduced. All these results indicated that HTU at Sub-CW can be used for heavy oil pre-treatment (in-situ or ex-situ upgrading) considering its main effect of viscosity reduction with a small removal of heteroatoms, while HTU at NCW and SWC has a great potential in insitu and ex-situ upgrading and oil refining as it can convert heavy oil into light oil.

Keywords

heavy oil, hydrothermal upgrading, sub-critical water, near-critical water, supercritical water, in-situ upgrading

The name of the journal

Journal of Petroleum Science and Engineering

URL

https://www.sciencedirect.com/science/article/pii/S0920410519310137?via%3Dihub

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=221763&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Abbas Khamid Ibrakhim Abbas	ru_RU
dc.contributor.author	Al-Muntaser Amin Akhmed Mokhammed	ru_RU
dc.contributor.author	Akhmadiyarov Aydar Anfisovich	ru_RU
dc.contributor.author	Varfolomeev Mikhail Alekseevich	ru_RU
dc.contributor.author	Klochkov Vladimir Vasilevich	ru_RU
dc.contributor.author	Rakhmatullin Ilfat Zufarovich	ru_RU
dc.contributor.author	Suveyd Munir Abdo Mokhammed	ru_RU
dc.contributor.author	Feoktistov Dmitriy Aleksandrovich	ru_RU
dc.contributor.author	Chemodanov Artem Evgenevich	ru_RU
dc.contributor.author	Yuan Chengdong	ru_RU
dc.contributor.author	Domínguez-Álvarez E.	ru_RU
dc.contributor.author	Amerkhanov Marat I.	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	A.A. Al-Muntaser, M.A. Varfolomeev, M.A. Suwaid, C. Yuan, A.E. Chemodanov, D.A. Feoktistov, I.Z. Rakhmatullin, M. Abbas, E. Domínguez-Álvarez, A.A. Akhmadiyarov, V.V. Klochkov, M.I. Amerkhanov. Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions, Journal of Petroleum Science and Engineering, 2020, 184, 106592	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=221763&p_lang=2	ru_RU
dc.description.abstract	Journal of Petroleum Science and Engineering	ru_RU
dc.description.abstract	In this study, the hydrothermal upgrading (HTU) of high sulfur-content heavy oil was investigated at sub-critical (Sub-CW), near-critical (NCW) and supercritical water (SCW) conditions. Products obtained after HTU, including gases, liquid, and coke (if formed), were analyzed to understand the upgrading performance at different conditions. At Sub-CW (200, 250, and 300 C), 250 C is the optimum temperature where a viscosity reduction from 2073 to 1758 mPa s was achieved with a slight removal of sulfur (mainly sulfur) and the generation of a small amount of light and non-condensable hydrocarbons in gas phase (C1–C4, isoalkanes and alkenes, H2S, CO2 and H2, etc.). At NCW (350 C) and SCW (400 C), heavy oil was upgraded into light oil with a significant removal of heteroatoms, an increase of saturates content, a reduction of aromatics, resins and asphaltenes contents, and a high yield of light gaseous hydrocarbons (mainly methane). Simultaneously, each SARA fraction was also greatly ameliorated: the content of light alkanes with low molecular weight in saturates was increased, diaromatics content in aromatics was increased with a reduction of polyaromatics content, aromatics-type carbon atoms in resins was increased with a decrease in aliphatic hydrocarbons. Moreover, MALDI-TOF measurements of asphaltenes show that the molecular weights of asphaltenes were reduced. All these results indicated that HTU at Sub-CW can be used for heavy oil pre-treatment (in-situ or ex-situ upgrading) considering its main effect of viscosity reduction with a small removal of heteroatoms, while HTU at NCW and SWC has a great potential in insitu and ex-situ upgrading and oil refining as it can convert heavy oil into light oil.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	heavy oil	ru_RU
dc.subject	hydrothermal upgrading	ru_RU
dc.subject	sub-critical water	ru_RU
dc.subject	near-critical water	ru_RU
dc.subject	supercritical water	ru_RU
dc.subject	in-situ upgrading	ru_RU
dc.title	Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions	ru_RU
dc.type	Articles in international journals and collections	ru_RU