Enhancing serpentine dissolution kinetics for mineral carbon dioxide sequestration

Krevor, Samuel; Lackner, Klaus S.

doi:10.1016/j.ijggc.2011.01.006

Cited by 112 publications

(66 citation statements)

References 37 publications

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“…The majority of previous research has focused on the aqueous carbonation of naturally occurring silicate minerals such as serpentine (Mckelvy et al, 2004;Alexander et al, 2007;Krevor and Lackner, 2011), olivine (Haug et al, 2010), limestone (Symonds et al, 2009) and wollastonite (Tai et al, 2006;Huijgen et al, 2006c;Daval et al, 2009) due to their high calcium or magnesium content. Although the CO 2 storage capacity of these natural Ca-Mg-silicate minerals is sufficient to fix the CO 2 emitted from the combustion of fossil fuels, the technological carbonation of these minerals is slow and energy demanding.…”

Section: Alkaline Wastes As Adsorbentsmentioning

confidence: 99%

“…Typical process conditions for the formation of magnesium carbonation via aqueous carbonation are p CO2 > 100 bar and a reaction time of hours (Huijgen et al, 2006c). 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.…”

Section: Rate Of Carbonate Precipitationmentioning

confidence: 99%

See 1 more Smart Citation

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

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

352

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: Alkaline Wastes As Adsorbentsmentioning

confidence: 99%

Section: Rate Of Carbonate Precipitationmentioning

confidence: 99%

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

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

352

193

View full text Add to dashboard Cite

show abstract

“…Previous CCSM studies were performed under a wide range of physical and chemical conditions and mostly utilized only one type of serpentine, e.g. antigorite [Krevor and Lackner, 2011;Maroto-Valer et al, 2004;Park and Fan, 2004 and references therein]; lizardite [Daval et al, 2013;Sanna et al, 2013;Schulze et al, 2004;Wolf et al, 2004]; or chrysotile [Ryu et al, 2011;Rozalen et al, 2013]. Only a few have utilized two types of serpentine, lizardite and antigorite [O'Connor et al, 2002;Styles et al, 2014], and three or more have never been investigated under the same processing conditions, preventing a realistic comparison of the effects of mineral structure and composition on cation release; i.e.…”

Section: Introductionmentioning

confidence: 99%

Acid-dissolution of antigorite, chrysotile and lizardite for ex situ carbon capture and storage by mineralisation

et al. 2016

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Serpentine minerals serve as a Mg donor in carbon capture and storage by mineralisation (CCSM).The acid-treatment of nine comprehensively-examined serpentine polymorphs and polytypes, and the subsequent microanalysis of their post-test residues highlighted several aspects of great importance to the choice of the optimal feed material for CCSM. Compelling evidence for the nonuniformity of serpentine mineral performance was revealed, and the following order of increasing Mg extraction efficiency after three hours of acid-leaching was established: Al-bearing polygonal serpentine (<5%) ≤ Al-bearing lizardite 1T (≈5%) < antigorite (24-29%) < well-ordered lizardite 2H 1 (≈65%) ≤ Al-poor lizardite 1T (≈68%) < chrysotile (≈70%) < poorly-ordered lizardite 2H 1 (≈80%) < nanotubular chrysotile (≈85%).It was recognised that the Mg extraction efficiency of the minerals depended greatly on the intrinsic properties of crystal structure, chemistry and rock microtexture. On this basis, antigorite and Albearing well-ordered lizardite were rejected as potential feedstock material whereas any chrysotile, non-aluminous, widely spaced lizardite and/or disordered serpentine were recommended.The formation of peripheral siliceous layers, tens of microns thick, was not universal and depended greatly upon the intrinsic microtexture of the leached particles. This study provides the first comprehensive investigation of nine, carefully-selected serpentine minerals, covering most varieties and polytypes, under the same experimental conditions. We focused on material characterisation and the identification of the intrinsic properties of the minerals that affect particle's reactivity. It can therefore serve as a generic basis for any acid-based CCSM pre-treatment.

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“…Among the many materials tested, magnesium-rich materials are thought to be good candidates for carbonation due to their natural abundance [14] and relatively higher unit mass binding efficiency (e.g., as compared to calcium). For example, physical activation (grinding [15][16][17] or heating [18,19]), chemical leaching (acid [20][21][22], recyclable ammonium salt [23,24] or non-acidic ionic solutions [25]), bioleaching [26,27] were applied to Mg rich minerals to dissolve and concentrate Mg. However, the other CO 2 absorption and carbonate precipitation steps have been less explored.…”

Section: Co 2 Mineral Sequestrationmentioning

confidence: 99%

CO2 Absorption and Magnesium Carbonate Precipitation in MgCl2–NH3–NH4Cl Solutions: Implications for Carbon Capture and Storage

Zhu

Wang

et al. 2017

Minerals

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CO 2 absorption and carbonate precipitation are the two core processes controlling the reaction rate and path of CO 2 mineral sequestration. Whereas previous studies have focused on testing reactive crystallization and precipitation kinetics, much less attention has been paid to absorption, the key process determining the removal efficiency of CO 2 . In this study, adopting a novel wetted wall column reactor, we systematically explore the rates and mechanisms of carbon transformation from CO 2 gas to carbonates in MgCl 2 -NH 3 -NH 4 Cl solutions. We find that reactive diffusion in liquid film of the wetted wall column is the rate-limiting step of CO 2 absorption when proceeding chiefly through interactions between CO 2 (aq) and NH 3 (aq). We further quantified the reaction kinetic constant of the CO 2 -NH 3 reaction. Our results indicate that higher initial concentration of NH 4 Cl (≥ 2 mol·L −1 ) leads to the precipitation of roguinite, while nesquehonite appears to be the dominant Mg-carbonate without NH 4 Cl addition. We also noticed dypingite formation via phase transformation in hot water. This study provides new insight into the reaction kinetics of CO 2 mineral carbonation that indicates the potential of this technique for future application to industrial-scale CO 2 sequestration.

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Enhancing serpentine dissolution kinetics for mineral carbon dioxide sequestration

Cited by 112 publications

References 37 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

Acid-dissolution of antigorite, chrysotile and lizardite for ex situ carbon capture and storage by mineralisation

CO2 Absorption and Magnesium Carbonate Precipitation in MgCl2–NH3–NH4Cl Solutions: Implications for Carbon Capture and Storage

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