Case study for production of calcium carbonate from carbon dioxide in flue gases and steelmaking slag

Teir, Sebastian; Kotiranta, Tuukka; Pakarinen, Jouko; Mattila, Hannu-Petteri

doi:10.1016/j.jcou.2016.02.004

Cited by 45 publications

(19 citation statements)

References 11 publications

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“…Stainless steel slag compacts exposed to carbon dioxide for one hour achieved a compressive strength of 9 MPa and a carbon dioxide uptake of D r a f t 18% (Johnson et al 2003). Production of carbonate aggregate from steelmaking slag and carbon dioxide were also reported (Ghouleh et al 2017;Teir et al 2016). It was also found that carbonation activation, CO 2 treatment, of steel slag to achieve early strength can be obtained by a carbon sequestration process (Mahoutian and Shao 2016;Pan et al 2016).…”

Section: Introductionmentioning

confidence: 91%

Pilot production of steel slag masonry blocks

2018

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Masonry blocks are usually made of Portland cement and cured by steam. This study explores the possibility of making masonry blocks using steel slag as binder and carbon dioxide as curing activator. By carbonation activation of steel slag blocks, carbon dioxide can be permanently sequestered in steel slag as calcium carbonates, leading to stronger and more durable construction blocks. In this paper, carbonated steel slag paste was first evaluated by thermogravimetry, derivative thermogravimetry, X-ray diffraction, carbon uptake, strength development and leaching tests. Based on the preliminary results, the full-size masonry blocks were fabricated using steel slag as the binder and granite as the aggregates. The physical properties and durability of full-size steel slag masonry blocks were then examined through their density, water absorption, moisture content, compressive strength and fire resistance. An economic analysis was performed and a carbon dioxide utilization capacity was estimated. This study demonstrates that production of steel slag masonry blocks by carbonation is an economically feasible way to utilize carbon dioxide.

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Section: Introductionmentioning

confidence: 91%

Pilot production of steel slag masonry blocks

2018

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“…Steelmaking slags, more specific steel converter (basic oxygen furnace, BOF) slags can be converted with CO 2 into precipitated calcium carbonate (PCC) with market value. This route also known as the slag2PCC concept [1][2][3][4][5][6][7][8][9]. Figure 1 gives an overview of how the sectors of iron-and steelmaking, paper/plastics and the mining of limestone are interconnected with typical global annual mass flows indicated [6].…”

Section: Steelmaking Slags Valorizationmentioning

confidence: 99%

Metals Production, CO2 Mineralization and LCA

Zevenhoven

2020

Metals

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Modern methods of metal and metal-containing materials production involve a serious consideration of the impact on the environment. Emissions of greenhouse gases and the efficiency of energy use have been used as starting points for more sustainable production for several decades, but a more complete analysis can be made using life cycle assessment (LCA). In this paper, three examples are described: the production of precipitated calcium carbonate (PCC) from steelmaking slags, the fixation of carbon dioxide (CO 2 ) from blast furnace top gas into magnesium carbonate, and the production of metallic nanoparticles using a dry, high-voltage arc discharge process. A combination of experimental work, process simulation, and LCA gives quantitative results and guidelines for how these processes can give benefits from an environmental footprint, considering emissions and use and reuse of material resources. CO 2 mineralization offers great potential for lowering emissions of this greenhouse gas. At the same time, valuable solid materials are produced from by-products and waste streams from mining and other industrial activities.

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“…Accelerated mineral carbonation has been studied as an effective option for carbon sequestration in cement-based materials, [16][17][18][19] in situ mineralization of geological formation [20][21][22] and ex situ mineralization above ground in reactor or industrial processes using various feedstock such as industrial waste, residuals, and byproducts. [22][23][24][25][26][27][28] The atmospheric capture of CO 2 deals with extremely low CO 2 concentrations at approximately 412 ppm, 29 which is roughly 350 times lower than post-combustion flue gas (4-14 vol.%). Direct air capture is chosen for this process because ground improvement work in geotechnical applications is not localized, ensuring the carbon source from atmospheric air for more flexibility in operation.…”

Section: Carbonate Ion Source From Direct Air Capturementioning

confidence: 99%

“…Mineral carbonization is performed with calcium as the reactive compound to form thermodynamically stable carbonates in sand to improve their strength. Accelerated mineral carbonation has been studied as an effective option for carbon sequestration in cement‐based materials, in situ mineralization of geological formation and ex situ mineralization above ground in reactor or industrial processes using various feedstock such as industrial waste, residuals, and byproducts …”

Section: Introductionmentioning

confidence: 99%

Lab‐scale atmospheric CO₂ absorption for calcium carbonate precipitation in sand

et al. 2019

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The microbial‐induced calcite precipitation (MICP) process for ground improvement uses microorganisms to hydrolyze urea, producing carbonate ions to induce in situ calcium carbonate (CaCO3) precipitation in soil to improve its strength. This paper proposes using the hydroxide‐based absorption of CO2 instead to provide the carbonate ion source. This study utilizes direct air capture (DAC) to absorb atmospheric CO2 using potassium hydroxide (KOH) in a semi‐batch bubble absorption column. Potassium carbonate (K2CO3) was then injected into sand with calcium hydroxide (Ca(OH)2 as a calcium source to precipitate CaCO3 and regenerate KOH. Batch and continuous flow precipitation methods produced a poor distribution of CaCO3, with more CaCO3 precipitated on top, resulting in unconfined compressive strength (UCS) of 6.9 to 19.6 kPa. Sand pre‐mixed with Ca(OH)2 gave well distributed CaCO3, precipitated throughout the sample with 7.56 wt% and 6.87 wt% CaCO3 content and UCS of 39.2 and 35.3 kPa before failing for batch and continuous flow precipitation respectively. This differs from MICP strength improvement of 1000 kPa with 5.3 wt% CaCO3 due to poor binding of sand with the precipitated CaCO3 crystals. However, this application provides a stable sequestration source for atmospheric CO2 in soil. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Case study for production of calcium carbonate from carbon dioxide in flue gases and steelmaking slag

Cited by 45 publications

References 11 publications

Pilot production of steel slag masonry blocks

Pilot production of steel slag masonry blocks

Metals Production, CO2 Mineralization and LCA

Lab‐scale atmospheric CO₂ absorption for calcium carbonate precipitation in sand

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Case study for production of calcium carbonate from carbon dioxide in flue gases and steelmaking slag

Cited by 45 publications

References 11 publications

Pilot production of steel slag masonry blocks

Pilot production of steel slag masonry blocks

Metals Production, CO2 Mineralization and LCA

Lab‐scale atmospheric CO2 absorption for calcium carbonate precipitation in sand

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Product

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Lab‐scale atmospheric CO₂ absorption for calcium carbonate precipitation in sand