Review of the adsorption equilibria of CO2, CH4, and their mixture on coals and shales at high pressures for enhanced CH4 recovery and CO2 sequestration

Jeong, Seo Ryung; Park, Jung Hyeok; Lee, Jun Hyeong; Jeon, Pil Rip; Lee, Chang Ha

doi:10.1016/j.fluid.2022.113591

Cited by 23 publications

(11 citation statements)

References 134 publications

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“…In low temperatures and high pressures, the water molecules formed cage-like structures by the hydrogen bonds to restrict the lightweight methane molecules. − Methane hydrate is widely distributed in the submarine sediment and permafrost regions . It is estimated that about 27% of marine areas and 90% of land are potential areas for methane hydrate formation. , Methane hydrate is considered a high-density energy source because 1 volume of methane hydrate decomposition can release about 164 volumes of methane gas under standard conditions. , Moreover, the pollutants and harmful substances produced by the combustion of methane hydrate are much less than those of conventional fossil energy sources. − Therefore, methane hydrate is deemed as a new environment-friendly energy to deal with the increase in global energy demand. − …”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution and Phase Transition Characteristics of Methane Hydrate in the Water-Excess and Gas-Excess Deposits

Zhang,

Sun,

et al. 2024

Energy Fuels

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Methane hydrate is considered as a new environmentally friendly energy to meet future society development. To achieve safe and efficient hydrate production, it is critical to understand the hydrate accumulation characteristics in different deposits, considering the geological feature differences. In this study, the hydrate distribution characteristics in the gas-excess and water-excess deposits were visually investigated by using magnetic resonance imaging technology. Moreover, the effect of the initial gas pressure on hydrate formation behaviors and stability was analyzed. The results showed that methane hydrate first formed in the water–gas interface for the water-excess deposit, and then, the hydrate formation front gradually expanded into the water phase accumulation area. Moreover, the methane hydrate distribution was mainly determined by the initial distribution of water and gas in the porous media. For the water-excess deposit, the spatial distribution of methane hydrate showed an obvious heterogeneity, and the mass hydrate accumulated at the bottom of the deposit. However, a uniform distribution of methane hydrate in the gas-excess deposit was observed. Furthermore, methane hydrate that formed in the higher initial gas pressure and the water-excess environment had good stability during the water flow process, which prolonged the duration of the hydrate decomposition process. The findings attempt to provide valuable information and guidelines for understanding the gas hydrate system.

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Section: Introductionmentioning

confidence: 99%

Spatial Distribution and Phase Transition Characteristics of Methane Hydrate in the Water-Excess and Gas-Excess Deposits

Zhang,

Sun,

et al. 2024

Energy Fuels

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“…Finally, the challenges and prospects of CO 2 -ECBM in the current practice and future perspectives are highlighted. Existing literature − only reviews CO 2 -ECBM from a certain perspective, while this review systematically reviews CO 2 -ECBM from the aspects of experiment, modeling, technology development, etc. The flowchart of the review is shown in Figure .…”

Section: Introductionmentioning

confidence: 99%

Recent Advances and Perspectives of CO₂-Enhanced Coalbed Methane: Experimental, Modeling, and Technological Development

et al. 2023

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Carbon dioxide (CO2)-enhanced coalbed methane recovery (CO2-ECBM) is a critical way to increase methane production and reduce greenhouse gas (CO2 and CH4) emissions. As captured CO2 is continuously injected in the coal seams, a low cost of CO2 sequestration and high efficiency of CH4 recovery can be achieved via the flooding and replacing effects driven by the injected CO2 flow. Scientific insights into the complex process of CO2-ECBM in experiments, modelings, and technological developments need to be made to propose appropriate countermeasures. This review first highlights the progress of CO2-ECBM under laboratory conditions, e.g., the binary gas competitive adsorption and gas displacement experiments in the macroscale and porous structure tests using technologies of nuclear magnetic resonance (NMR), scanning electron microscopy (SEM), and computed tomography (CT) in the microscale. Then, the advances of mathematical models for changing in coal permeability and porosity during CO2-ECBM are reviewed, accompanying with the multi-field and multi-phase coupling responses of competitive sorption, diffusion, gas–water seepage, heat transfer, and solid deformation. Furthermore, the field pilot tests of CO2-ECBM in various countries and regions are also covered to reveal the key technical challenges confronted with the development of CO2-ECBM technology. The perspectives in experiments, models, and field pilots of CO2-ECBM are made, which include but are not limited to the following: conducting a core CH4/CO2 flooding test under in situ conditions, modeling CO2-ECBM with real fractures/faults and coal failure, developing a new method for gas migration and leakage monitoring in the field, and enacting relevant standards, laws, and regulations to promote CO2-ECBM.

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“…Nevertheless, an important question remains: what should be done with the captured CO 2 ? Carbon sequestration, a technology that allows CO 2 to be trapped into the rock layers of the ground ,− is one possible approach. Shales, coals, or saline aquifers are examples of rock formations where CO 2 sequestration is possible.…”

Section: Introductionmentioning

confidence: 99%

New Insights on Catalytic Valorization of Carbon Dioxide by Conventional and Intensified Processes

Olivier

Desgagnés

Mercier

et al. 2023

Ind. Eng. Chem. Res.

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Carbon capture is an emerging technology that is often mentioned as a potential solution to the global warming crisis. However, most of the captured carbon is now treated as waste, discarded, and not used in any meaningful way. On the other hand, from a sustainable development point of view, CO 2 valorization could be a very appealing approach that offers an economic potential when this compound is recycled into valuable chemical products. In this regard, this state-of-the-art review encompasses a wide range of different processes to achieve the conversion of CO 2 into a large variety of products. It does not focus solely on a specific reaction or method, but rather brings different aspects together to provide a far more complete portrait of this emerging subject. Several methods and approaches are discussed, namely thermochemical, electrochemical, photochemical, photoelectrochemical, biochemical, and plasma-assisted conversion. The current state of CO 2 valorization, as well as emerging alternatives and stimulating prospects, was examined, while bearing in mind the realities that limit the application of such technologies. Special emphasis was placed on the optimization of reaction conditions and the development of materials that ensure the best possible production of valuable and environmentally friendly compounds from CO 2 . This review also highlights the challenges related to the application of CO 2 valorization at an industrial scale, which are also important in directing further research in this domain and assessing the prospects of these technologies. Due to the growing number of published papers on the subject, and the limited number of papers offering such a large perspective, we thus believe that this review will be a valuable addition to guide all researchers involved in the field of CO 2 valorization, but also for industrial and political leaders interested in investing in and developing these promising new technologies.

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Review of the adsorption equilibria of CO2, CH4, and their mixture on coals and shales at high pressures for enhanced CH4 recovery and CO2 sequestration

Cited by 23 publications

References 134 publications

Spatial Distribution and Phase Transition Characteristics of Methane Hydrate in the Water-Excess and Gas-Excess Deposits

Spatial Distribution and Phase Transition Characteristics of Methane Hydrate in the Water-Excess and Gas-Excess Deposits

Recent Advances and Perspectives of CO₂-Enhanced Coalbed Methane: Experimental, Modeling, and Technological Development

New Insights on Catalytic Valorization of Carbon Dioxide by Conventional and Intensified Processes

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Review of the adsorption equilibria of CO2, CH4, and their mixture on coals and shales at high pressures for enhanced CH4 recovery and CO2 sequestration

Cited by 23 publications

References 134 publications

Spatial Distribution and Phase Transition Characteristics of Methane Hydrate in the Water-Excess and Gas-Excess Deposits

Spatial Distribution and Phase Transition Characteristics of Methane Hydrate in the Water-Excess and Gas-Excess Deposits

Recent Advances and Perspectives of CO2-Enhanced Coalbed Methane: Experimental, Modeling, and Technological Development

New Insights on Catalytic Valorization of Carbon Dioxide by Conventional and Intensified Processes

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Product

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Recent Advances and Perspectives of CO₂-Enhanced Coalbed Methane: Experimental, Modeling, and Technological Development