Importance of dissolution and precipitation kinetics for mineral carbonation

Haug, T.A.; Munz, I. A.; Kleiv, Rolf Arne

doi:10.1016/j.egypro.2011.02.475

Cited by 22 publications

(13 citation statements)

References 40 publications

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“…However, MgCO 3 formation could be observed when natural ores (e.g., serpentine, olivine, etc) were selected as the feedstock for carbonation (Alexander et al, 2007;Krevor and Lackner, 2011). Furthermore, the study reported by Haug et al (2011) indicated that the mineral carbonation of olivine (generally rich in Mg contents) at 115 bar and 185°C is limited by MgCO 3 (magnesite) precipitation and not the olivine dissolution rate. O'Connor et al (2002) also found that conversion of the silicate to carbonate does not occur in the solid state but appears to require mineral dissolution in the aqueous phase.…”

Section: Rate Of Carbonate Precipitationmentioning

confidence: 99%

“…Various studies have addressed methods to speed up the kinetics of direct aqueous carbonation including physical and chemical pretreatment (Maroto-Valer et al, 2005a, b), electrolysis and heat pretreatment , and mechanical activation methods (McKelvy et al, 2004;Park and Fan, 2004;Haug et al, 2010;Haug et al, 2011). O'Connor et al (2002) investigated approaches to reduce particle size, and increase surface area, and elevate process temperature and pressure by thermal treatment or steam activation.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…Accelerated carbonation can be classified into two main types: mineral carbonation and alkaline solid waste carbonation. Mineral carbonation can be defined as the reaction between minerals and CO 2 where the product is at least one type of carbonate (Haug et al, 2011). Currently, accelerated carbonation has been primarily investigated through the direct aqueous route (Huijgen and Comans, 2006a;Costa, 2009;Uibu et al, 2009;Chang et al, 2011a).…”

Section: Accelerated Carbonationmentioning

confidence: 99%

“…The rate of carbonation reaction can be enhanced by adding acids or caustic alkali-metal hydroxide (Beard et al, 2004), utilizing a bicarbonate/salt (NaHCO 3 /NaCl) mixture (Maroto-Valer et al, 2005a;O'Connor et al, 2005), employing various pretreatment techniques (i.e., including physical and chemical pretreatment (Maroto-Valer et al, 2005a, b), electrolysis and heat pretreatment , mechanical activation methods (McKelvy et al, 2004;Park and Fan, 2004;Haug et al, 2010;Haug et al, 2011)), and using wastewater/brine as liquid agents (Chou, 2011;Liu and Maroto-Valer, 2011;Nyambura et al, 2011). However, pretreatments and addition of chemicals tend to consume additional energy and materials.…”

Section: Summary Of Practical Considerationsmentioning

confidence: 99%

See 3 more Smart Citations

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

358

193

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CO 2 capture, utilization, and storage (CCUS) is a promising technology wherein CO 2 is captured and stored in solid form for further utilization instead of being released into the atmosphere in high concentrations. Under this framework, a new process called accelerated carbonation has been widely researched and developed. In this process, alkaline materials are reacted with high-purity CO 2 in the presence of moisture to accelerate the reaction to a timescale of a few minutes or hours. The feedstock for accelerated carbonation includes natural silicate-minerals (e.g., wollastonite, serpentine, and olivine) and industrial residues (e.g., steelmaking slag, municipal solid waste incinerator (MSWI) ash, and air pollution control (APC) residues). This research article focuses on carbonation technologies that use industrial alkaline wastes, such as steelmaking slags and metalworking wastewater. The carbonation of alkaline solid waste has been shown to be an effective way to capture CO 2 and to eliminate the contents of Ca(OH) 2 in solid residues, thus improving the durability of concrete blended with the carbonated residues. However, the operating conditions must be further studied for both the economic viability of the technology and the optimal conditions for CO 2 reaction.

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Section: Rate Of Carbonate Precipitationmentioning

confidence: 99%

Section: Performance Evaluationmentioning

confidence: 99%

Section: Accelerated Carbonationmentioning

confidence: 99%

Section: Summary Of Practical Considerationsmentioning

confidence: 99%

See 2 more Smart Citations

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

358

193

View full text Add to dashboard Cite

show abstract

“…Mineral carbonation transform carbon dioxide into the form of geologically and thermodynamically stable magnesium carbonate. This process can be considered as a result of two steps: (1) dissolution of silicate minerals and (2) the reaction between either calcium or magnesium cations and CO 2 to create carbonates [1][2][3][4][5][6]. For aqueous carbonation, magnesium silicate minerals such as serpentinite and olivine are frequently used [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Application of the shrinking core model for dissolution of serpentinite in an acid solution

2016

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Abstract. Serpentinites have the potential to be used as carbo dioxide capture and storage materials. Acid dissolution is the first stage of this process. This study examined how a shrinking core model can be applied to the dissolution of serpentinite in sulphuric acid. The dissolution process was assumed to occur in two stages: an initial step involving the surface dissolution of serpentinite pieces, and a second step involving surface chemical reaction, described by the shrinking core model. The model formulation was completed by relating the dissolution rate of serpentinite to the surface changes.

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Utilization of mineral carbonation products: current state and potential

et al. 2019

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Mineral carbonation (MC) is a form of carbon capture and storage that reacts CO2 with alkaline feedstock to securely store CO2 as solid carbonate minerals. To improve process economics and accelerate commercial deployment, research has increased around product utilization, where markets exist primarily in the construction industry. This review assesses the potential for advancing MC product utilization to decrease CO2 emissions toward neutral, or even negative, values. First, the literature surrounding the current state and challenges for indirect MC processes is reviewed, indicating that process intensification and scale‐up are important areas for further research. Alkalinity sources available for MC are examined, differentiating between those sourced from industrial processes and mining operations. Investigation of possible end uses of carbonate products reveals that further CO2 avoidance can be achieved by replacing conventional carbon‐intensive products. Companies that are currently commercializing MC processes are categorized based on the feed used and materials produced. An analysis of company process types indicates that up to 3 GtCO2 year–1 could be avoided globally. It is suggested that upcoming commercial efforts should focus on the carbonation of industrial wastes located near CO2 sources to produce precast concrete blocks. Carbonation of conventional concrete shows the highest potential for CO2 avoidance, but may face some market resistance. Carbonation of Mg silicates lacks sufficient market demand and requires the development of new high‐value products to overcome the expense of mining and feed preparation. It is suggested that research focus on enhanced understanding of magnesia cement chemistry and the development of flame‐retardant mineral fillers. © 2019 The Authors. Greenhouse Gases: Science and Technology published by Society of Chemical Industry and John Wiley & Sons, Ltd.

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Importance of dissolution and precipitation kinetics for mineral carbonation

Cited by 22 publications

References 40 publications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Application of the shrinking core model for dissolution of serpentinite in an acid solution

Utilization of mineral carbonation products: current state and potential

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