Iron oxide nanoparticles impact on improving reservoir rock minerals catalytic effect on heavy oil aquathermolysis

Ситнов, С. А.; Khelkhal, Mohammed A.; Mukhamatdinov, Irek I.; Feoktistov, Dmitriy A.; Vakhin, Аlexey V.

doi:10.1016/j.fuel.2022.124956

Cited by 33 publications

(11 citation statements)

References 63 publications

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“…The Fe 2 O 3 nanoparticle is widely used as the catalyst for the catalytic upgrading of heavy oil in subcritical and supercritical water owing to its low cost, environment-friendly nature, and acceptable catalytic activity. − It can be seen from Table that both oil yield and coke yield in the Fe 2 O 3 test only decreased slightly compared to those in the control test. Figure suggests that the H/C is the same as the control test (1.54), and the X D is only up to 11.46%.…”

Section: Resultsmentioning

confidence: 99%

Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Chen,

et al. 2024

Energy Fuels

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Conversion of heavy oil is urgent as most of the explored fossil oil reserves and renewable raw biodiesel can be categorized as heavy oil. Supercritical water upgrading (SCWU) is a green and promising technology for heavy oil conversion, but the hydrogen-donating capacity of pure water is inadequate. This study adopts transition-metal hydroxide (M−OH) to enhance the in situ hydrogen-donating capacity of water for the first time. Both M− OH and the corresponding metal oxide nanoparticle (MO n ) of one post-transition metal (Al) and five transition metals (Cr, Cu, Fe, Ni, Zn) are tested. The SCWU conditions are selected as 425 °C, 60 min, water-to-oil ratio of 4:1, catalyst-to-oil ratio of 1:10, and water density of 308 kg m −3 . Deuterium oxide (D 2 O) instead of H 2 O is used as the reaction medium for a deuterium tracing study. Results indicate that the different metal-based MO n nanoparticles display various effects on heavy hydrocarbon cracking, gasification, coke suppression, and D addition reactions. The overall performance is found to be on the order of NiO > Cr 2 O 3 > Fe 2 O 3 > CuO > Al 2 O 3 > ZnO. Compared to MO n , M−OH can generally improve the oil yield and H/C ratio and reduce the coke yield simultaneously. The mechanism analysis suggests that the M−OH decomposition behavior under hydrothermal conditions is the primary cause by which MO n and lattice H 2 O are generated in the oil-rich phase. The lattice H 2 O can not only take part in SCWU reactions but also suppress coke formation. In conclusion, M−OH is a promising catalyst as it combines the good dispersibility and catalytic activity of MO n nanoparticles and the low cost of water-soluble inorganic metal salts (M-IAc) but does not result in any corrosive species, such as inorganic acid from M-IAc.

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Section: Resultsmentioning

confidence: 99%

Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Chen,

et al. 2024

Energy Fuels

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“…The crack of organic sulfur compounds in heavy oil is not accomplished in one step but through a series of reactions, including acid polymerization, low-temperature oxidation, and water-gas conversion. Metals show a positive and catalytic effect on aquathermolysis [21,[108][109][110][111][112][113]. Metal ions play a catalytic role in the crack of C-S bonds, WGSR (Water Gas Shift Reactions), hydrocracking, and hydrodesulfurization.…”

Section: Catalytic Aquathermolysis For Heavy Oilmentioning

confidence: 99%

Current Status and Future Trends of In Situ Catalytic Upgrading of Extra Heavy Oil

Chen

Cai

et al. 2023

Energies

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In situ catalytic upgrading of heavy oil decomposes viscous heavy oil underground through a series of complex chemical and physical reactions with the aid of an injected catalyst, and permits the resulting lighter components to flow to the producer under a normal pressure drive. By eliminating or substantially reducing the use of steam, which is prevalently used in current heavy oil productions worldwide and is a potent source of contamination concerns if not treated properly, in situ catalytic upgrading is intrinsically environmental-friendly and widely regarded as one of the promising techniques routes to decarbonize the oil industry. The present review provides a state-of-the-art summarization of the technologies of in situ catalytic upgrading and viscosity reduction in heavy oil from the aspects of catalyst selections, catalytic mechanisms, catalytic methods, and applications. The various types of widely used catalysts are compared and discussed in detail. Factors that impact the efficacy of the in situ upgrading of heavy oil are presented. The challenges and recommendations for future development are also furnished. This in-depth review is intended to give a well-rounded introduction to critical aspects on which the in situ catalytic application can shed light in the development of the world’s extra heavy oil reservoirs.

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“…The most used catalysts are water- and oil-soluble, dispersed, and mineral, which are based on transition metals (Ni, Mo, Fe, Cu, etc.) . These catalysts exhibit high initial performance, which is dropped with cycles of operation .…”

Section: Introductionmentioning

confidence: 99%

“…5,7,8 The most used catalysts are water-and oil-soluble, dispersed, and mineral, which are based on transition metals (Ni, Mo, Fe, Cu, etc.). 9 These catalysts exhibit high initial performance, which is dropped with cycles of operation. 10 For instance, during the in situ steam injection for catalytic upgrading of heavy crude oil, part of the catalyst is retained in the rock with time, which together with other causes would reduce its efficiency and limit the recovery factor.…”

Section: Introductionmentioning

confidence: 99%

“…These catalysts exhibit high initial performance, which is dropped with cycles of operation . For instance, during the in situ steam injection for catalytic upgrading of heavy crude oil, part of the catalyst is retained in the rock with time, which together with other causes would reduce its efficiency and limit the recovery factor. ,, Therefore, the dispersion stability, transport, and adsorption of the catalyst in reservoir rocks should be deeply studied to optimize and design the best injection protocol. It is then important to consider all phenomena that affect the catalyst efficiency during the application of steam injection for the in situ upgrading of heavy oil. , …”

Section: Introductionmentioning

confidence: 99%

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New Approach to Simulate Long-Term In Situ Aquathermolysis Reaction Combining Noncatalytic and Catalytic Kinetic Models

Félix,

Tirado,

Varfolomeev

et al. 2024

Ind. Eng. Chem. Res.

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The numerical simulation of reservoirs is usually used to develop the best strategy to implement new steam injection technologies, such as cyclic steam simulation enhanced with the use of catalysts. The efficiency of the catalyst is reduced at long periods of time, which is a drawback that the currently reported kinetic models do not consider. In this work, a novel method is proposed to predict the composition of Ashalcha heavy oil during in situ upgrading by considering noncatalytic and catalytic aquathermolysis reactions and an efficiency catalytic decay term. The new approach displayed more accurate yield predictions over longer periods of time. The production of light fractions is obtained during the catalytic and noncatalytic aquathermolysis reactions, reaching higher yields when the former predominates due to the conversion of aromatic fraction into lighter compounds. At short reaction times, the aquathermolysis reactions are mainly catalytic, and as the reaction time increases, the thermal (noncatalytic) reactions are more important. For the simulation of the reaction rate during three cycles, the efficiency of the catalyst is almost depleted in the last cycle.

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Iron oxide nanoparticles impact on improving reservoir rock minerals catalytic effect on heavy oil aquathermolysis

Cited by 33 publications

References 63 publications

Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Current Status and Future Trends of In Situ Catalytic Upgrading of Extra Heavy Oil

New Approach to Simulate Long-Term In Situ Aquathermolysis Reaction Combining Noncatalytic and Catalytic Kinetic Models

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