Carbonation of Silicate Minerals and Industrial Wastes and Their Potential Use as Sustainable Construction Materials

Gadikota, Greeshma; Fricker, Kyle J.; Jang, Sung-Hwan; Park, Ah‐Hyung Alissa

doi:10.1021/bk-2015-1194.ch012

Cited by 41 publications

(34 citation statements)

References 115 publications

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“…Conversely, ex-situ mineral carbonation is achieved in a separate reactor or an industrial process where the operational conditions are easy to control [17]. Ex-situ mineral carbonation can also apply CO 2 as a carbon source for chemical production (e.g., carbonates), which can be used as building materials, aggregates, and cementitious phases [18,19]. Figure 1 shows a conceptual diagram depicting CCS strategies via mineral carbonation.…”

Section: Process Routesmentioning

confidence: 99%

Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

Hitch

Power

et al. 2018

Minerals

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Recently, integrated mineral carbonation for CO 2 sequestration has received significant attention due to the high potential for commercialization towards mitigating climate change. This review compiles the work conducted by various researchers over the last few years on integrated mineral carbonation processes in the mining industry, which use ultramafic mine wastes as feedstock for mineral carbonation. Here, we introduce the basic concepts of mineral carbonation including a brief description of the process routes and pre-treatment techniques. We discuss the scope of integrated mineral carbonation process application, and critically review the integrated mineral carbonation process in the mining industry including modified passive carbonation techniques in tailing storage facilities, and ex-situ carbonation routes using fresh tailings. The focus of the discussions is the role of reaction condition on the carbonation efficiency of mine waste with various mineralogical compositions, and the benefits and drawbacks of each integrated mineral carbonation process. All discussions lead to suggestions for the technological improvement of integrated mineral carbonation. Finally, we review the techno-economic assessments on existing integrated mineral carbonation technologies. Research to date indicates that value-added by-products will play an important role in the commercialization of an integrated mineral carbonation process.

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Section: Process Routesmentioning

confidence: 99%

Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

Hitch

Power

et al. 2018

Minerals

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“…This approach enables the reuse of alkaline materials and reduces the cost of landfilling. Incorporating compositions as low as 10 wt% of carbonate-bearing steel slag in construction materials has shown to enhance the compressive strength from about 33-50 MPa 28 . CO 2 curing of synthetic calcium silicate to produce high strength carbonate-bearing construction materials has now been translated into practice 29 .…”

Section: Biomass Oxygenatementioning

confidence: 99%

Carbon mineralization pathways for carbon capture, storage and utilization

Gadikota

2021

Commun Chem

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115

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Carbon mineralization is a versatile and thermodynamically downhill process that can be harnessed for capturing, storing, and utilizing CO 2 to synthesize products with enhanced properties. Here the author discusses the advances in and challenges of carbon mineralization, and concludes that tuning the chemical interactions involved will allow us to unlock its potential for advancing low carbon energy and resource conversion pathways.

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“…One of the approaches for permanent carbon storage is to use highly reactive Ca-and Mg-bearing substrates that can react with CO 2 to form thermodynamically stable and environmentally benign calcium or magnesium carbonates [33][34][35][36][37]. Examples of reactive Caand Mg-bearing materials include wollastonite (CaSiO 3 ), olivine (Mg 2 SiO 4 ), and serpentine (Mg 3 Si 2 O 5 (OH) 4 ).…”

Section: Morphological and Structural Changes In Heat-treated Serpentmentioning

confidence: 99%

Multiscale X-Ray Scattering for Probing Chemo-Morphological Coupling in Pore-to-Field and Process Scale Energy and Environmental Applications

Gadikota¹

2018

Small Angle Scattering and Diffraction

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One of the greatest challenges of our generation is the sustainable storage of environmentally harmful by-products of energy production processes. High-level nuclear wastes and CO 2 produced from the energy sectors are examples of these by-products. To ensure the environmentally benign storage of these by-products in a solid form, it is essential to understand the chemical and morphological features of the materials in which these byproducts are immobilized. With recent advancements in X-ray scattering, it is now possible to map the structure and the microstructure of architected and natural materials across four decades in spatial scale. Multiscale X-ray scattering that encompasses ultrasmall-, small-, and wide-angle X-ray scattering (USAXS/SAXS/WAXS) allows us to probe material features in the spatial ranges of ~5 μm-10 nm, ~100-1 nm, and ~1 nm-0.2 Å, respectively. This connection is illustrated using two specific examples. The first example involves determination of the changes in the porosity and the structure of beidellite, a swelling clay used in the repository design for nuclear waste disposal, on heating to temperatures above 1000°C. The second example illustrates the changes in the nanoscale porosity of heat-treated serpentine after reacting with CO 2 to form magnesium carbonate.

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Carbonation of Silicate Minerals and Industrial Wastes and Their Potential Use as Sustainable Construction Materials

Cited by 41 publications

References 115 publications

Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

Carbon mineralization pathways for carbon capture, storage and utilization

Multiscale X-Ray Scattering for Probing Chemo-Morphological Coupling in Pore-to-Field and Process Scale Energy and Environmental Applications

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