KFU. Card publication. Hydrogen donating capacity of water in catalytic and non-catalytic aquathermolysis of extra-heavy oil: Deuterium tracing study

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HYDROGEN DONATING CAPACITY OF WATER IN CATALYTIC AND NON-CATALYTIC AQUATHERMOLYSIS OF EXTRA-HEAVY OIL: DEUTERIUM TRACING STUDY

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Al-Muntaser Amin Akhmed Mokhammed , author

Bibliographic description in the original language

Al-Muntaser, Ameen A., Mikhail A. Varfolomeev, Muneer A. Suwaid, Dmitriy A. Feoktistov, Chengdong Yuan, Alexander E. Klimovitskii, Bulat I. Gareev et al. «Hydrogen donating capacity of water in catalytic and non-catalytic aquathermolysis of extra-heavy oil: Deuterium tracing study.« Fuel 283: 118957.

Annotation

The goal of this work is to try to figure out the role of water in catalytic and non-catalytic aquathermolysis by using isotope tracing techniques. For this purpose, heavy water (deuterium oxide, D2O) was used to replace the ordinary water (H2O) for catalytic and non-catalytic aquathermolysis processes of extra-heavy oil with high sulfur content in autoclave. The donating and upgrading performance of D2O were deeply investigated by analyzing the upgraded (deuterated) oil and their SARA (saturates, aromatics, resins and asphaltenes) fractions using different tracing techniques (FTIR, isotope and elemental analysis), evolved gases by GC, and change in physical-chemical properties of upgraded (deuterated) oils by viscosity measurement, SARA analysis, elemental analysis and GC, etc. The results proved the chemical role of water as a green and environmental hydrogen-donor solvent during aquathermolysis process, verified by considerable deuterium substitution (deuteration) obtained from isotope analysis both in upgraded oil and SARA fractions. The results are further supported by significant deuterium exchanges (deuteration) of aliphatic and aromatics parts in the initial and deuterated oil samples and their individual SARA fractions in FTIR spectra. Simultaneously, introducing Ni-tallate as an oil-soluble catalyst promoted the donating capacity of water, thus significantly improving the upgrading performance. The important finding about the role of water in catalytic and non-catalytic aquathermolysis not only enriches the theoretical basis in this area, but also provides a strong support for the use of catalysts in aquathermolysis for improving in-situ heavy oil upgrading performance.

Keywords

Deuterium tracingHeavy waterDonating capacityIsotope labellingIn-situ deuterationCatalytic aquathermolysis

The name of the journal

Fuel

URL

https://www.sciencedirect.com/science/article/pii/S0016236120319530

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

https://repository.kpfu.ru/eng/?p_id=237738&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Al-Muntaser Amin Akhmed Mokhammed	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Al-Muntaser, Ameen A., Mikhail A. Varfolomeev, Muneer A. Suwaid, Dmitriy A. Feoktistov, Chengdong Yuan, Alexander E. Klimovitskii, Bulat I. Gareev et al. «Hydrogen donating capacity of water in catalytic and non-catalytic aquathermolysis of extra-heavy oil: Deuterium tracing study.« Fuel 283: 118957.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=237738&p_lang=2	ru_RU
dc.description.abstract	Fuel	ru_RU
dc.description.abstract	The goal of this work is to try to figure out the role of water in catalytic and non-catalytic aquathermolysis by using isotope tracing techniques. For this purpose, heavy water (deuterium oxide, D2O) was used to replace the ordinary water (H2O) for catalytic and non-catalytic aquathermolysis processes of extra-heavy oil with high sulfur content in autoclave. The donating and upgrading performance of D2O were deeply investigated by analyzing the upgraded (deuterated) oil and their SARA (saturates, aromatics, resins and asphaltenes) fractions using different tracing techniques (FTIR, isotope and elemental analysis), evolved gases by GC, and change in physical-chemical properties of upgraded (deuterated) oils by viscosity measurement, SARA analysis, elemental analysis and GC, etc. The results proved the chemical role of water as a green and environmental hydrogen-donor solvent during aquathermolysis process, verified by considerable deuterium substitution (deuteration) obtained from isotope analysis both in upgraded oil and SARA fractions. The results are further supported by significant deuterium exchanges (deuteration) of aliphatic and aromatics parts in the initial and deuterated oil samples and their individual SARA fractions in FTIR spectra. Simultaneously, introducing Ni-tallate as an oil-soluble catalyst promoted the donating capacity of water, thus significantly improving the upgrading performance. The important finding about the role of water in catalytic and non-catalytic aquathermolysis not only enriches the theoretical basis in this area, but also provides a strong support for the use of catalysts in aquathermolysis for improving in-situ heavy oil upgrading performance.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Hydrogen donating capacity of water in catalytic and non-catalytic aquathermolysis of extra-heavy oil: Deuterium tracing study	ru_RU
dc.type	Articles in international journals and collections	ru_RU