It systematically reviews multiple carbon stabilization mechanisms driven by mineral-organic carbon interfacial reactions, including ligand exchange,
by SM Wilcox · 2025 · Cited by 18 — These carbonate precipitates can trap CO2 via mineral trapping, solubility trapping, and formation trapping and aid in CO2 leakage reduction in geologic carbon
by Z Xu · 2024 · Cited by 108 — Herein, we critically review the primary interactions between organic carbon and soil minerals and the relevant mechanisms, including sorption, redox reaction,
In addition to green measures like upscaling renewables and improving energy efficiency, there is broad scientific consensus that large-scale carbon capture and sequestration (CCS) remains critical to limiting global temperature rise below 2°C. CCS involves capturing CO2 (from a point source or directly from the air); compressing and transporting it via a pipeline; and storing it deep underground, or utilizing it as a feedstock or agent in another industrial process. An illustration shows a cross section of the earth with injection wells deep underground where CO2 can either be trapped under overlying cap rock or mineralize. Carbon dioxide (CO2) injected into wells into porous rock layers thousands of feet below ground becomes trapped or mineralizes. Mineralization is the most secure form of carbon sequestration, as injected CO2 is naturally converted into a solid phase, preventing unwanted migration out of the storage complex. Penn State Institute of Energy and the Environment, Growing Impact: Underground carbon storage with a rock background. Growing Impact: Underground carbon storage.
by S Ni · 2023 · Cited by 17 — Mechanism of Microbial-Assisted Mineralization. Microorganisms play critical roles in elemental cycling, as well as in the transformation of
The latter process is called mineral sequestration. These methods are considered non-volatile because they not only remove carbon dioxide from the atmosphere
by Y Ma · 2024 · Cited by 33 — Over time, the CO2 is sequestered by several mechanisms: structural trapping beneath impermeable caprocks, residual trapping within the rock pores, solubility
On the other hand, in-situ mineral carbonation involves injecting CO2 into reactive rocks such as basalt, resulting in rapid mineral carbonation/trapping and transforming CO2 into stable carbonate minerals, greatly reducing the risk of CO2 leakage and providing a safer, unmonitored option for permanent CO2 sequestration (Sanna et al. The rates of mineral carbonation reactions are strongly influenced by the chemical properties and reactivity of different rock types, along with the pressure and temperature during CO2 injection (Kelemen et al. Unlike studies assessing carbon storage potential in sandstone formations, the current evaluation methods for in-situ mineralization sequestration lack a hierarchical and coherent system, similar to the technology-economic resource pyramid proposed by the Carbon Sequestration Leadership Forum (CSLF) (Bachu et al. Mineral dissolution is the rate-limiting step in in-situ CO2 mineralization sequestration processes, wherein the ability of silicate minerals to release divalent metal cations (e.g., Ca2+, Mg2+, and Fe2+) directly determines the rate of mineralization reactions (Zhang and DePaolo 2017 Rates of CO2 mineralization in geological carbon storage.