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

Al‐Muntaser, Ameen A.; Varfolomeev, Mikhail A.; Suwaid, Muneer A.; Feoktistov, Dmitriy A.; Yuan, Chengdong; Klimovitskii, Alexander E.; Гареев, Б. И.; Djimasbe, Richard; Нургалиев, Д. К.; Kudryashov, S. I.; Егорова, Е. В.; Фомкин, А В; Petrashov, Oleg V.; Afanasiev, Igor S.; Fedorchenko, Gennady

doi:10.1016/j.fuel.2020.118957

Cited by 76 publications

(30 citation statements)

References 35 publications

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“…This behavior is attributed to the high ability of Cu phases to cleave heteroatoms−C bonds as well as saturate free radicals that were formed by the rupture of some naphthenic rings and bridge bonds in high molecular weight compounds, 8,25 where the water participates in aquathermolysis reactions as a hydrogen donor, as has been reported in generalized reaction mechanisms for aquathermolysis reaction. 16,26 Figure 4 illustrates a reaction mechanism of the possible pathways carried out under aquathermolysis conditions using a copper oleate precursor. The carboxylic ligands maintain the transition metals in the oil phase, improving the interaction with heavy crude oil molecules.…”

Section: Resultsmentioning

confidence: 99%

Modeling the Kinetics of Heavy Crude Oil Cu-Oleate Aquathermolysis

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Félix

Suwaid

et al. 2023

Ind. Eng. Chem. Res.

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During steam injection processes, oil-soluble catalysts have demonstrated high efficiency by improving the flow properties of heavy crude oil into the reservoir. In order to gain a deeper understanding of the effect of this catalyst type and its reaction mechanism, further studies based on complex kinetic models are required. The catalytic effect of copper oleate on aquathermolysis of heavy crude oil was studied using experimental data obtained with a water/oil ratio of 3:7, a temperature range of 250 to 300 °C, and up to 72 h of reaction time. A kinetic model was developed to predict the yield of the SARA fractions and gases. The calculated kinetic parameters presented a proper fit concerning experimental data with average absolute error values lower than 4%. Results showed that copper oleate reduces the polyaddition reactions of heavy fractions, favoring the production of lighter compounds. A set of in-series and parallel reactions indicate that the reaction gas and aromatic compounds are mainly produced from the asphaltene fraction, where aromatic fractions subsequently generate saturates hydrocarbons.

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Section: Resultsmentioning

confidence: 99%

Modeling the Kinetics of Heavy Crude Oil Cu-Oleate Aquathermolysis

Tirado

Félix

Suwaid

et al. 2023

Ind. Eng. Chem. Res.

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“…The synergistic effect of the hydrogen donor and the catalyst has a greater effect on the condensation reaction of heavy oil, which has a greater degree of inhibition effect. 108 Al-Muntaser et al performed a deuterium tracer experiment 109 for the rst time to systematically study the application of water as a hydrogen donor in catalytic and non-catalytic hydrothermal decomposition. The authors used deuterium oxide (D 2 O) instead of ordinary water (H 2 O) to reveal the hydrogen supply capacity of water in the hydrothermal decomposition reaction.…”

Section: Mechanism Of Hydrogen-donating Reaction With Catalystmentioning

confidence: 99%

“…Al-Muntaser et al performed a deuterium tracer experiment 109 for the first time to systematically study the application of water as a hydrogen donor in catalytic and non-catalytic hydrothermal decomposition. The authors used deuterium oxide (D 2 O) instead of ordinary water (H 2 O) to reveal the hydrogen supply capacity of water in the hydrothermal decomposition reaction.…”

Section: Mechanisms Of Hydrogen Donor In Catalytic Cracking Upgrading...mentioning

confidence: 99%

A review on the role of hydrogen donors in upgrading heavy oil and bitumen

Zhao

Zhu

et al. 2022

Sustainable Energy Fuels

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“…The first systematic study on the application of water as a hydrogen source in both catalytic and non-catalytic aquathermolysis was carried out by Al-Muntaser et al via a deuterium tracing study [29]. The authors used deuterium oxide (D 2 O) instead of normal water (H 2 O) to reveal the hydrogen donating ability of water in aquathermolysis reactions.…”

Section: Use Of Hydrogen Donorsmentioning

confidence: 99%

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

et al. 2021

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The aquathermolysis process is widely considered to be one of the most promising approaches of in-situ upgrading of heavy oil. It is well known that introduction of metal ions speeds up the aquathermolysis reactions. There are several types of catalysts such as dispersed (heterogeneous), water-soluble and oil soluble catalysts, among which oil-soluble catalysts are attracting considerable interest in terms of efficiency and industrial scale implementation. However, the rock minerals of reservoir rocks behave like catalysts; their influence is small in contrast to the introduced metal ions. It is believed that catalytic aquathermolysis process initiates with the destruction of C-S bonds, which are very heat-sensitive and behave like a trigger for the following reactions such as ring opening, hydrogenation, reforming, water–gas shift and desulfurization reactions. Hence, the asphaltenes are hydrocracked and the viscosity of heavy oil is reduced significantly. Application of different hydrogen donors in combination with catalysts (catalytic complexes) provides a synergetic effect on viscosity reduction. The use of catalytic complexes in pilot and field tests showed the heavy oil viscosity reduction, increase in the content of light hydrocarbons and decrease in heavy fractions, as well as sulfur content. Hence, the catalytic aquathermolysis process as a distinct process can be applied as a successful method to enhance oil recovery. The objective of this study is to review all previously published lab scale and pilot experimental data, various reaction schemes and field observations on the in-situ catalytic aquathermolysis process.

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

Cited by 76 publications

References 35 publications

Modeling the Kinetics of Heavy Crude Oil Cu-Oleate Aquathermolysis

Modeling the Kinetics of Heavy Crude Oil Cu-Oleate Aquathermolysis

A review on the role of hydrogen donors in upgrading heavy oil and bitumen

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

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