Numerical Prediction of the Behavior of CO2 Bubbles Leaked from Seafloor and Their Convection and Diffusion near Southeastern Coast of Korea

Among various carbon capture and storage technologies to mitigate global warming and ocean acidification due to greenhouse gases, ocean geological storage is considered the most feasible for Korea due to insufficient inland space to store CO2. However, the risk of CO2 leakage and the behavior and environmental effects of the leaked CO2 need to be assessed for its successful implementation. Therefore, the behavior of CO2 bubbles/droplets dissolving into the surrounding seawater and the diffusion of dissolved CO2 by ocean flows should be accurately predicted. However, finding corresponding research has been difficult in Korea. Herein, the behavior and convection-diffusion of CO2 that was assumed to have leaked from the seafloor near the southeastern coast of Korea were numerically predicted using a multi-scale ocean model for the first time. In the simulation region, one of the pilot projects of CO2 ocean geological storage had started but has been temporarily halted. In the ocean model, hydrostatic approximation and the Eulerian–Lagrangian two-phase model were applied for meso- and small-scale regions, respectively. Parameters for the simulations were the leakage rate and the initial diameter of CO2. Results revealed that all leaked and rising CO2 bubbles were dissolved into the seawater before reaching the free surface; further, the change in the partial pressure of CO2 did not exceed 500 ppm during 30 days of leakage for all cases.

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Carbon Capture and Storage: introductory lecture

Faraday Discussions ◽

10.1039/c6fd00148c ◽

2016 ◽

Vol 192 ◽

pp. 9-25 ◽

Cited By ~ 21

Author(s):

Berend Smit

Keyword(s):

Energy Demand ◽

Carbon Capture ◽

Carbon Capture And Storage ◽

Geological Storage ◽

Global Energy ◽

Introductory Lecture ◽

Permanent Storage ◽

Available Technology ◽

Storage Technologies ◽

And Storage

Carbon Capture and Storage (CCS) is the only available technology that allows us to significantly reduce our CO2 emissions while keeping up with the ever-increasing global energy demand. Research in CCS focuses on reducing the costs of carbon capture and increasing our knowledge of geological storage to ensure the safe and permanent storage of CO2. This brief review will discuss progress in different capture and storage technologies.

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Modeling and economic evaluation of the integration of carbon capture and storage technologies into coal to liquids plants

Fuel ◽

10.1016/j.fuel.2013.05.008 ◽

2014 ◽

Vol 116 ◽

pp. 850-860 ◽

Cited By ~ 19

Author(s):

Claudia Bassano ◽

Paolo Deiana ◽

Giuseppe Girardi

Keyword(s):

Economic Evaluation ◽

Carbon Capture ◽

Carbon Capture And Storage ◽

Storage Technologies ◽

And Storage

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Numerical Simulation of Microscopic Formation of Carbon Dioxide Hydrate in Two-Phase Flow

10.1115/omae2021-62567 ◽

2021 ◽

Author(s):

Alan Junji Yamaguchi ◽

Kaito Kobayashi ◽

Toru Sato ◽

Takaomi Tobase

Keyword(s):

Carbon Dioxide ◽

Carbon Capture ◽

Two Phase Flow ◽

Pore Space ◽

Carbon Capture And Storage ◽

Hydrate Formation ◽

Field Method ◽

Phase Field Method ◽

Phase Flow ◽

Two Phase

Abstract The global warming is an important environmental concern and the carbon capture and storage (CCS) emerges as a very promising technology. Captured carbon dioxide (CO2) can be stored onshore or offshore in the aquifers. There is, however, a risk that stored CO2 will leak due to natural disasters. One possible solution to this is the natural formation of CO2 hydrates. Gas hydrate has an ice-like structure in which small gas molecules are trapped within cages of water molecules. Hydrate formation occurs under high pressure and low temperature conditions. Its stability under these conditions acts like a cap rock to prevent CO2 leaks. The main objective of this study is to understand how hydrate formation affects the permeability of leaked CO2 flows. The phase field method was used to simulate microscopic hydrate growth within the pore space of sand grains, while the lattice Boltzmann method was used to simulate two-phase flow. The results showed that the hydrate morphology within the pore space changes with the flow, and the permeability is significantly reduced as compared with the case without the flow.

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The potential for large-scale, subsurface geological CO2 storage in Denmark

Geological Survey of Denmark and Greenland Bulletin ◽

10.34194/geusb.v17.5003 ◽

1969 ◽

Vol 17 ◽

pp. 13-16 ◽

Cited By ~ 1

Author(s):

Peter Frykman ◽

Lars Henrik Nielsen ◽

Thomas Vangkilde-Pedersen

Keyword(s):

Carbon Capture ◽

Large Scale ◽

Best Practice ◽

Co2 Storage ◽

Carbon Capture And Storage ◽

The European Union ◽

Geological Storage ◽

Geological Co2 Storage ◽

Research Programmes ◽

Capture Techniques

Carbon capture and storage (CCS) is increasingly considered to be a tool that can significantly reduce the emission of CO2. It is viewed as a technology that can contribute to a substantial, global reduction of emitted CO2 within the timeframe that seems available for mitigating the effects of present and continued emission. In order to develop the CCS method the European Union (EU) has supported research programmes for more than a decade, which focus on capture techniques, transport and geological storage. The results of the numerous research projects on geological storage are summarised in a comprehensive best practice manual outlining guidelines for storage in saline aquifers (Chadwick et al. 2008). A detailed directive for geological storage is under implementation (European Commission 2009), and the EU has furthermore established a programme for supporting the development of more than ten large-scale demonstration plants throughout Europe. Geological investigations show that suitable storage sites are present in most European countries. In Denmark initial investigations conducted by the Geological Survey of Denmark and Greenland and private companies indicate that there is significant storage potential at several locations in the subsurface.

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A Review on Well Integrity issues for Underground Hydrogen Storage (UHS)

Journal of Energy Resources Technology ◽

10.1115/1.4052626 ◽

2021 ◽

pp. 1-27

Author(s):

Esteban R. Ugarte ◽

Saeed Salehi

Keyword(s):

Hydrogen Storage ◽

Carbon Capture ◽

Supply And Demand ◽

Carbon Capture And Storage ◽

Future Research ◽

Well Completion ◽

Well Integrity ◽

Evaluation And Monitoring ◽

Storage Technologies ◽

Underground Hydrogen Storage

Abstract Renewable energy production is limited by the fluctuations limiting their application. Underground Hydrogen Storage (UHS) is one possible alternative to reduce the gap between supply and demand by storing the energy converted to hydrogen as a carrier and store it during surplus to produce it during high demand periods. The hydrogen is stored in the subsurface in geological formations containing the gas and is injected/produced via wells. There is a lack of experience associated with this technology and only a small number of projects worldwide. There are several mechanisms that can compromise the integrity of the well and generate leakage of the stored gas. This paper aims to introduce the challenges associated with well integrity of UHS. Mechanisms that can compromise well integrity and generate leaks include microbial corrosion, hydrogen blistering hydrogen induced cracking and hydrogen embrittlement, cement degradation, elastomer failure, and caprock sealing failure. Propose well completion criteria, recommendation, and materials selection for newly constructed wells or existing wells. A comparison with more developed storage technologies aims to provide a better understanding of the limitations of hydrogen storage by comparing it to carbon dioxide (Carbon Capture and Storage) and methane (Underground Gas Storage). Finally, evaluation and monitoring techniques are required to see the influence of hydrogen on well integrity. Future research and development will reduce the uncertainties and limitations associated with UHS increasing its feasibility and implementation.

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Transient Simulations of Spouted Fluidized Bed for Coal-Direct Chemical Looping Combustion

Volume 1: Fuels and Combustion, Material Handling, Emissions; Steam Generators; Heat Exchangers and Cooling Systems; Turbines, Generators and Auxiliaries; Plant Operations and Maintenance; Reliability, Availability and Maintainability (RAM); Plant Systems, Structures, Components and Materials Issues ◽

10.1115/power2014-32290 ◽

2014 ◽

Author(s):

Zheming Zhang ◽

Ramesh Agarwal

Keyword(s):

Carbon Capture ◽

Power Plants ◽

High Efficiency ◽

Combustion Process ◽

Chemical Looping Combustion ◽

Successful Implementation ◽

Chemical Looping ◽

Two Phase ◽

Coal Particles ◽

Fuel Reactor

Chemical-looping combustion holds significant promise as one of the next generation combustion technology for high-efficiency low-cost carbon capture from fossil fuel power plants. For thorough understanding of the chemical-looping combustion process and its successful implementation in CLC based industrial scale power plants, the development of high-fidelity modeling and simulation tools becomes essential for analysis and evaluation of efficient and cost effective designs. In this paper, multiphase flow simulations of coal-direct chemical-looping combustion process are performed using ANSYS Fluent CFD code. The details of solid-gas two-phase hydrodynamics in the CLC process are investigated by employing the Lagrangian particle-tracking approach called the discrete element method (DEM) for the movement and interaction of solid coal particles moving inside the gaseous medium created due to the combustion of coal particles with an oxidizer. The CFD/DEM simulations show excellent agreement with the experimental results obtained in a laboratory scale fuel reactor in cold flow conditions. More importantly, simulations provide important insights for making changes in fuel reactor configuration design that have resulted in significantly enhanced performance.

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Comparing the development and deployment of carbon capture and storage technologies in Norway, the Netherlands, Australia, Canada and the United States–An innovation system perspective

Energy Procedia ◽

10.1016/j.egypro.2009.02.279 ◽

2009 ◽

Vol 1 (1) ◽

pp. 4591-4599 ◽

Cited By ~ 23

Author(s):

Klaas van Alphen ◽

Marko P. Hekkert ◽

Wim C. Turkenburg

Keyword(s):

United States ◽

The Netherlands ◽

Carbon Capture ◽

Carbon Capture And Storage ◽

Innovation System ◽

The United States ◽

System Perspective ◽

Storage Technologies ◽

And Storage

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Special Issue “Climate Change, Carbon Capture, Storage and CO2 Mineralisation Technologies”

Applied Sciences ◽

10.3390/app10217463 ◽

2020 ◽

Vol 10 (21) ◽

pp. 7463

Author(s):

Nikolaos Koukouzas ◽

Pavlos Tyrologou ◽

Petros Koutsovitis

Keyword(s):

Climate Change ◽

Carbon Capture ◽

Carbon Capture And Storage ◽

Special Issue ◽

Scientific Papers ◽

Storage Technologies ◽

And Storage ◽

Carbon Capture Storage

This Special Issue presents sixteen scientific papers that explore the application of carbon capture and storage technologies, mitigating the effects of climate change [...]

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