8 results ·
● Live web index
definition
S
sciencedirect.com
article
https://www.sciencedirect.com/science/article/pii/S2405844023103434
## Heliyon. # Review article A review of carbon mineralization mechanism during geological CO2 storage. https://doi.org/10.1016/j.heliyon.2023.e23135Get rights and content. The CO2 trap mechanisms during carbon capture and storage (CCS) are classified into structural, residual, solution, and mineral traps. The latter is considered as the most permanent and stable storage mechanism as the injected CO2 is stored in solid form by the carbon mineralization. In this study, the carbon mineralization process in geological CO2 storage in basalt, sandstone, carbonate, and shale are reviewed. In addition, relevant studies related to the carbon mineralization mechanisms, and suggestions for future research directions are proposed. The carbon mineralization is defined as the conversion of CO2 into stable carbon minerals by reacting with divalent cations such as Ca2+, Mg2+, or Fe2+. Rock properties such as permeability, porosity, and rock strength can be altered by the carbon mineralization. Since changes of the properties are directly related to injectivity, storage capacity, and stability during the geological CO2 storage, the carbon mineralization mechanism should be considered for an optimal CCS design.
W
wri.org
article
https://www.wri.org/insights/carbon-mineralization-carbon-removal
### **1) What is Carbon Mineralization?**. Carbon mineralization is a process that naturally occurs over hundreds or thousands of years in which certain minerals inside rocks react with atmospheric CO2 to create carbonates, solid minerals that securely remove and sequester CO2. Alkaline minerals within the rock powder react with ambient CO2, trapping it in solid carbonates. A key concern with scaling up carbon mineralization above ground is the need to increase mining to access large amounts of alkaline material, as well as grinding and transport — all of which require energy. Carbon removed through surficial mineralization, for example, is challenging to account for and monitor because oceans, coasts and soils, where mine tailings and crushed rocks are spread, are open systems (as compared to a closed-system DAC plant). Carbon mineralization presents significant potential as a carbon removal approach, within a larger suite of carbon removal and climate actions, to help reach global climate goals.
U
usgs.gov
official
https://www.usgs.gov/news/featured-story/making-minerals-how-growing-rocks-ca…
Following an assessment of geologic carbon storage potential in sedimentary rocks, the USGS has published a comprehensive review of potential carbon storage in igneous and metamorphic rocks through a process known as carbon mineralization. There are two primary types of geologic carbon mineralization: injection of carbon dioxide into rock formations deep underground, or exposure to broken pieces of rock at the surface, such as leftovers from mining, called mine tailings. The carbon dioxide is injected into wells that go deep underground to igneous or metamorphic rock formations that have the potential for carbon mineralization. However, there is not nearly as much rock that can be mineralized on the surface as there is underground, so the overall amount of carbon storage is higher for underground injection than exposing carbon dioxide to crushed rock on the surface. Image shows a map of geologic carbon storage potential throughout the United States.
N
ncbi.nlm.nih.gov
official
https://www.ncbi.nlm.nih.gov/books/NBK541437/
Carbon mineralization is an emerging approach to remove carbon dioxide (CO2) from the air and/or store it in the form of carbonate minerals such as calcite
B
biorecro.com
article
https://www.biorecro.com/carbon-mineralization/
In-situ mineralization occurs with Carbon Capture & Storage (CCS) technologies like Direct Air Capture (DAC) and Bio-Energy with Carbon Capture & Storage (BECCS) when injecting carbon into geological formations. BECCS technology then captures the carbon dioxide from these industrial processes and sequesters it permanently using geologic storage. #### It is through geologic storage that carbon will mineralize. Geologic storage works because carbon dioxide is injected into locations that are already equipped to store it. ###### Image: Geologic storage of carbon dioxide. After carbon dioxide dissolves in brine water, it can react with the mineral of the rock. Without CCS technologies, the natural mineralization process sequesters an estimated .7 billion tonnes of carbon dioxide per year. Currently, the most common sequestration arrangement for BECCS facilities in Europe and the Nordics is through partnerships with storage operators sequestering carbon in the North Sea, Norwegian Sea, and Barents Sea. At these sites, carbon dioxide is trapped thousands of meters below the seafloor.
C
ceclab.seas.upenn.edu
research
https://ceclab.seas.upenn.edu/page/mineral-carbonation
Engineered carbon mineralization emulates and accelerates natural rock weathering, whereby calcium (Ca) and magnesium (Mg) silicate minerals react with carbon dioxide dissolved in water to form calcium and magnesium carbonate minerals that are stable on geologic timescales. *Ex situ* carbon mineralization can be done with silicate rocks and even alkaline industrial byproducts.4 Calcium and magnesium are found in many other materials that are often considered the 'wastes' of industrial processes: mining wastes, steel slag, air pollution control residue, fly ash, and many other industrial wastes are abundant in magnesium and/or calcium and can be used as feedstocks for *ex situ* mineralization processes. At the Clean Energy Conversions Lab, we research carbon mineralization as a method of carbon storage in two projects: the first project loops Mg and Ca oxides that are highly reactive with CO2 to conduct direct air capture;5 the second leaches calcium and magnesium from mining wastes from carbonates.6 Our research into carbon mineralization extends beyond the lab as we consider how economics, mapping, life cycle assessments, and US policy can help deploy carbon mineralization on a broad scale.
C
carbon-direct.com
article
https://www.carbon-direct.com/criteria/2025-edition/carbon-mineralization
Carbon mineralization binds carbon in rock in both underground (in situ) and aboveground (ex situ) sites. Carbonate minerals can be incorporated into products
C
carbon180.org
article
https://carbon180.org/wp-content/uploads/2023/08/C180-Fact-Sheet-Mineralizati…
Mineralization When carbon dioxide reacts with materials such as mine waste or certain rocks, solid minerals are created and stored in formations at the earth’s surface or underground. The Department of Energy (DOE) includes enhanced mineralization as a pathway in their carbon utilization program, which focuses on early-stage R&D to develop novel ways of transforming waste carbon streams into valuable products. It will be important to increase federal R&D funding for enhanced mineralization with a focus on small-scale field experiments, feasibility studies, data collection, and feedstock inventory mapping to safely actualize its full carbon removal potential. REFERENCES Carbfix Carbon Dioxide Mineralization Feasibility in the United States, USGS Carbon Removal: Comparing Historical Federal Research Investments with the National Academies’ Recommended Future Funding Levels, Bipartisan Policy Center, Energy Futures Initiative Carbon Utilization, FECM Clearing the Air, Energy Futures Initiative Global Carbon Dioxide Removal Potential of Waste Materials From Metal and Diamond Mining, Frontiers in Climate Regional Carbon Sequestration Partnerships Initiative, NETL Rock Solid, Energy Futures Initiative Wallula Basalt Project, Pacific Northwest National Laboratory.