Direct aqueous carbonation on olivine at a CO2 partial pressure of 6.5 MPa

Li, Jiajie; Jacobs, Anthony D.; Hitch, Michael

doi:10.1016/j.energy.2019.02.125

Cited by 38 publications

(13 citation statements)

References 41 publications

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“…However, a huge amount of raw materials containing calcium or magnesium should be necessary to make the mineral carbonation process a practical measure for CO 2 emission reduction. The uses of natural rocks − or waste materials − have been reported for the mineral carbonation processes. Ultramafic rocks such as olivine, serpentine, and wollastonite are potential materials for mineral carbonation with large reserves of resources.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge

et al. 2021

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Mineral carbonation, which is CO 2 fixation through a carbonation reaction using alkaline earth metals, is being investigated as a carbon capture and utilization method to reduce CO 2 atmospheric emissions. Concrete sludge is an alkali waste material from the concrete industry and contains abundant calcium components. We investigated the applicability of concrete sludge for mineral carbonation. In this study, gas containing CO 2 was bubbled through the model concrete sludge solution and the effects of the solid−liquid ratio, bubbling time, gas flow rate, and the partial pressure of CO 2 on the CO 2 fixation ratio and fixation rate were investigated. The CO 2 fixation ratio decreased with increasing CO 2 bubbling time, CO 2 flow rate, and CO 2 partial pressure. The CO 2 fixation rate increased with increasing CO 2 flow rate and CO 2 partial pressure. The formation of calcite, a form of calcium carbonate, was confirmed.

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Section: Introductionmentioning

confidence: 99%

Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge

et al. 2021

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“…Ex situ approaches using crushed natural rocks rich in minerals such as olivine (Kwon et al, 2011), serpentine (Park and Fan, 2004;Wang and Maroto-Valer, 2011b;Nduagu et al, 2012), and wollastonite (Huijgen et al, 2006;Daval et al, 2009;Xu et al, 2019) have been investigated, but industrial alkaline wastes and byproducts, such as mine tailings (Bodénan et al, 2014) or iron and steel slags (Yadav and Mehra, 2017), are likely better suited to ex situ processes owing to greater reactivity than their natural counterparts, as discussed in the section Artificial Alkaline Minerals-Industrial by-Products and Wastes, and Tailored Minerals. High temperatures and pressures (Domingo et al, 2006), high CO 2 partial pressures (Li et al, 2019), additives (Krevor and Lackner, 2009), and mechanical (Fabian et al, 2010;Li and Hitch, 2018), or heat activation (Farhang et al, 2019) could be used to capture and store CO 2 within timeframes relevant to industrial processes. Although ex situ processes are likely best integrated with readily available sources of concentrated CO 2 from industry, integration with DAC may also be possible.…”

Section: Ex Situmentioning

confidence: 99%

“…Ex situ processes can be broadly categorized as either "direct" or "indirect." Direct CO 2 mineralization occurs in one step, as a gas-solid (Kwon et al, 2011;Liu et al, 2018) or as a gasliquid-solid process (Benhelal et al, 2019;Li et al, 2019). Indirect CO 2 mineralization methods use multiple steps which overall result in the dissolution of a silicate mineral and the creation of a carbonate mineral.…”

Section: Ex Situmentioning

confidence: 99%

Geochemical Negative Emissions Technologies: Part I. Review

et al. 2022

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Over the previous two decades, a diverse array of geochemical negative emissions technologies (NETs) have been proposed, which use alkaline minerals for removing and permanently storing atmospheric carbon dioxide (CO2). Geochemical NETs include CO2 mineralization (methods which react alkaline minerals with CO2, producing solid carbonate minerals), enhanced weathering (dispersing alkaline minerals in the environment for CO2 drawdown) and ocean alkalinity enhancement (manipulation of ocean chemistry to remove CO2 from air as dissolved inorganic carbon). CO2 mineralization approaches include in situ (CO2 reacts with alkaline minerals in the Earth's subsurface), surficial (high surface area alkaline minerals found at the Earth's surface are reacted with air or CO2-bearing fluids), and ex situ (high surface area alkaline minerals are transported to sites of concentrated CO2 production). Geochemical NETS may also include an approach to direct air capture (DAC) that harnesses surficial mineralization reactions to remove CO2 from air, and produce concentrated CO2. Overall, these technologies are at an early stage of development with just a few subjected to field trials. In Part I of this work we have reviewed the current state of geochemical NETs, highlighting key features (mineral resources; processes; kinetics; storage durability; synergies with other NETs such as DAC, risks; limitations; co-benefits, environmental impacts and life-cycle assessment). The role of organisms and biological mechanisms in enhancing geochemical NETs is also explored. In Part II, a roadmap is presented to help catalyze the research, development, and deployment of geochemical NETs at the gigaton scale over the coming decades.

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“…Silicates rocks are available in vast amounts worldwide and represent the ideal material for mineral carbonation. Often used minerals include olivine ((Mg,Fe)SiO 4 ) [28], forsterite (Mg 2 SiO 4 ) [29], serpentine (Mg 3 Si 2 O 5 (OH) 4 ) [30], and wollastonite (CaSiO 3 ) [31]. Several industrial residues (such as combustion/incineration ashes, mining tailings, and metallurgical slags) also contain alkaline silicates, often more complex, such as chrysotile (Mg 3 (Si 2 O 5 )(OH) 4 ) [32] and brownmillerite (Ca 2 (Al,Fe) 2 O 5 ) [33] and, at times, amorphous (lacking crystal structure).…”

Section: Experimental Investigation Part A: Background Of Mineral Carmentioning

confidence: 99%

Mineral Carbonation as an Educational Investigation of Green Chemical Engineering Design

Fantucci

Sidhu

2019

Sustainability

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Engaging students in the experimental design of “green” technology is a challenge in Chemical Engineering undergraduate programs. This concept paper demonstrates an educational methodology to investigate accelerated mineral carbonation, which is a promising technology related to mitigation of climate change by sequestering carbon dioxide (CO2) from industrial sources as stable solid carbonates. An experimental investigation is conceived, whereby students test the effect of two process parameters (CO2 pressure and mixing rate) on the extent of carbonation reaction. The carbonation reaction has been performed using a mineral called wollastonite (CaSiO3). The experimental study and laboratory report cover principles of reaction kinetics and mass transfer, while illustrating the steps to develop and investigate a green process technology. The results from the experimental investigation, which is carried out by multiple teams of students, are then pooled and used to guide a subsequent design project. Students would conceive a flowsheet, size equipment, and estimate the energy demand and net CO2 sequestration efficiency of a full-scale implementation of the mineral carbonation technology. This educational investigation aims to help undergraduate students to acquire deeper experiential learning and greater awareness of future green technologies by applying fundamental engineering principles into an engaging experimental and design exercise.

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Direct aqueous carbonation on olivine at a CO2 partial pressure of 6.5 MPa

Cited by 38 publications

References 41 publications

Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge

Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge

Geochemical Negative Emissions Technologies: Part I. Review

Mineral Carbonation as an Educational Investigation of Green Chemical Engineering Design

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Direct aqueous carbonation on olivine at a CO2 partial pressure of 6.5 MPa

Cited by 38 publications

References 41 publications

Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge

Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge

Geochemical Negative Emissions Technologies: Part I. Review

Mineral Carbonation as an Educational Investigation of Green Chemical Engineering Design

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Product

Resources

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Direct aqueous carbonation on olivine at a CO2 partial pressure of 6.5 MPa