Mineral carbonation for carbon sequestration in cement kiln dust from waste piles

Huntzinger, D. N.; Gierke, John S.; Sutter, Lawrence; Kawatra, S. Komar; Eisele, T.C.

doi:10.1016/j.jhazmat.2009.01.122

Cited by 162 publications

(68 citation statements)

References 16 publications

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“…5 illustrates the proposed mechanism of accelerated carbonation, which indicates that the carbonation reaction occurred in four routes. Similar results were also found in Huntzinger et al (2009b) and Uibu and Kuusik (2009a), suggesting some mechanisms that can affect the rate and extent of carbonation: (a) transportation-controlled mechanisms such as CO 2 and Ca 2+ -ions diffusion to/from reaction sites; (b) boundary layer effects (diffusion across precipitate coatings on particles); (c) dissolution of Ca(OH) 2 at the particle surface; (d) pore blockage; and (e) precipitate coating. Furthermore, their effects can change with time.…”

Section: Process Chemistrysupporting

confidence: 77%

“…Currently, accelerated carbonation processes have been focused on assessing and maximizing the storage of CO 2 by optimizing the operating conditions including pressure, temperature, liquid-to-solid (L/S) ratio, gas humidity, gas flow rate, liquid flow rate, particle size, and solid pretreatment in numerous experimental investigations (Costa et al, 2007;Huntzinger et al, 2009b;Haug et al, 2010;Chang et al, 2011a, b).…”

Section: Accelerated Carbonationmentioning

confidence: 99%

“…Beneficial to agriculture application; however, increased concerns over the health and environmental hazards (Huntzinger et al, 2009b) Lime (CaO); Portlandite (Ca(OH) 2 ); Calcium silicates; Gehlenite (Ca 2 Al(AlSiO 7 )) (Huntzinger et al, 2009b) Recycling and reuse as a road base material is an established process (Iizuka et al, 2004) Reuse as road base or construction material. No free-CaO was observed in the reacted samples (Huntzinger et al, 2009a) with calcite infilling the pore space.…”

Section: Cement Kiln Dustmentioning

confidence: 99%

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

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

349

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: Process Chemistrysupporting

confidence: 77%

Section: Accelerated Carbonationmentioning

confidence: 99%

Section: Cement Kiln Dustmentioning

confidence: 99%

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

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

349

193

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“…Prior studies show only minor variation in this utilization fraction across regions (<4.5%; Supplementary Data3). Cement kiln dust (CKD) related to clinker production 14,15 (Supplementary Table 4) will absorb carbon dioxide during landfill/waste treatment 16,17 , as will cement waste generated in construction.…”

Section: Cement Constituents and Hydration Reactionsmentioning

confidence: 99%

“…Given the very small particle size, substantial carbonation occurs within the first 2 days of reaction in a landfill and complete carbonation is achieved within one year 16,17 . We estimate carbon uptake by CKD in different regions of the world based on the cement production, CKD generation rate, proportion of CKD treatment in landfill (Supplementary Data4), CaO proportion in CKD 14 , and the fraction of CaO within fully carbonated CKD that has been converted to CaCO 3 (see method).…”

Section: Carbon Uptake By Cement Kiln Dustmentioning

confidence: 99%

Substantial global carbon uptake by cement carbonation

et al. 2016

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Calcination of carbonate rocks during the manufacture of cement produced 5% of global CO2 emissions from all industrial process and fossil-fuel combustion in 20131, 2. Considerable attention has been paid to quantifying these industrial process emissions from cement production2, 3, but the natural reversal of the process—carbonation—has received little attention in carbon cycle studies. Here, we use new and existing data on cement materials during cement service life, demolition, and secondary use of concrete waste to estimate regional and global CO2 uptake between 1930 and 2013 using an analytical model describing carbonation chemistry. We find that carbonation of cement materials over their life cycle represents a large and growing net sink of CO2, increasing from 0.10 GtC yr−1 in 1998 to 0.25 GtC yr−1 in 2013. In total, we estimate that a cumulative amount of 4.5 GtC has been sequestered in carbonating cement materials from 1930 to 2013, offsetting 43% of the CO2 emissions from production of cement over the same period, not including emissions associated with fossil use during cement production. We conclude that carbonation of cement products represents a substantial carbon sink that is not currently considered in emissions inventories1, 3, 4

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Fixation of Carbon Dioxide into Inorganic Carbonates: The Natural and Artificial “Weathering of Silicates”

Zevenhoven

Fagerlund

2010

Carbon Dioxide as Chemical Feedstock

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Mineral carbonation for carbon sequestration in cement kiln dust from waste piles

Cited by 162 publications

References 16 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

Substantial global carbon uptake by cement carbonation

Fixation of Carbon Dioxide into Inorganic Carbonates: The Natural and Artificial “Weathering of Silicates”

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