Polymorphs of pure calcium carbonate prepared by the mineral carbonation of flue gas desulfurization gypsum

Song, Kyung Soon; Kim, Wonbaek; Bang, Jae-Wook; Park, Sang Won; Jeon, Chi Wan

doi:10.1016/j.matdes.2015.06.051

Cited by 34 publications

(13 citation statements)

References 34 publications

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“…Moreover, what is important, in the proposed direct carbonation process, obtained calcium carbonate was practically free of impurities, which allows for further use of such a product [97]. In another work, Song et al [98] focused on the possibility of controlling the polymorphic form and morphology of calcium carbonate obtained during direct carbonation of DG using an aqueous ammonia solution. The controlling factor was the addition of ethanol to the reaction mixture under stoichiometric conditions and with an excess of ammonia.…”

Section: Gypsum Wastesmentioning

confidence: 99%

See 1 more Smart Citation

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Czaplicka

Konopacka-Łyskawa

2020

Energies

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Technologies for the management of various types of waste and the production of useful products from them are currently widely studied. Both carbon dioxide and calcium-rich waste from various production processes are problematic wastes that can be used to produce calcium carbonate. Therefore, the purpose of this paper is to provide an overview about the state of the development of processes that use these two wastes to obtain a valuable CaCO3 powder. The paper reviews the current research on the use of post-distillation liquid from the Solvay process, steelmaking slag, concrete, cement, and gypsum waste as well as some others industrial Ca-rich waste streams in the calcium carbonate precipitation process via carbonation route. This work is an attempt to collect the available information on the possibility of influencing the characteristics of the obtained calcium carbonate. It also indicates the possible limitations and implementation problems of the proposed technologies.

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Section: Gypsum Wastesmentioning

confidence: 99%

“…The controlling factor was the addition of ethanol to the reaction mixture under stoichiometric conditions and with an excess of ammonia. During both processes investigated by Song et al [97,98], a pure and valuable product from industrial DG is produced. However, the problem is to obtain a small amount of CaCO 3 crystals.…”

Section: Gypsum Wastesmentioning

confidence: 99%

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Czaplicka

Konopacka-Łyskawa

2020

Energies

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“…Song et al 92,93 applied flue gas desulfurization (FGD) gypsum for indirect MC to not only sequester CO 2 but gain pure carbonate crystals. Furthermore, Xuan et al 94 adopted direct MC to produce eco-friendly concrete blocks by recycling concrete aggregates.…”

Section: By Industrial Wastesmentioning

confidence: 99%

The technology of CO₂ sequestration by mineral carbonation: current status and future prospects

Wang

Dreisinger

Jarvis³

et al. 2017

Canadian Metallurgical Quarterly

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This paper has been submitted for publication in the Canadian Metallurgical Quarterly (CMQ) journal. The technology of CO 2 sequestration by mineral carbonation: Current status and future prospects Abstract Mineral carbonation (MC) has been extensively researched all over the world since it was found as a natural exothermic process to permanently and safely sequester CO 2. In order to accelerate the natural process, various methods for carbonation of Mg-/Casilicate minerals and other industrial wastes have been studied. It has been found that the MC efficiency will increase with an increase of CO 2 pressure, retention time, temperature, mass ratio of Mg or Ca to Si in minerals, specific surface area, and the slurry concentration in a specific range, and with the introduction of effective catalysts, for example, 1M NaCl and 0.64M NaHCO 3 or carbonic anhydrase. However, there still is not a successful industrial application because of high economic cost and slow reaction rate. It is not economic to exploit Mg-and Ca-silicate minerals deposits or tailings to sequester CO 2 by MC, due to the cost of grinding and heat pre-treatment and in some cases the whole sequestration process may result in more CO 2 emissions than the amount of CO 2 sequestered due to the requirements of energy inputs. The process however, may be profitable as a whole (with carbon credits). It is suggested to combine MC with recovery of valuable metals from ore deposits in order to reduce the cost for MC by cost sharing for mineral recovery.

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“…Approximately 80 Mt. of DFS is generated each year and most goes untreated, which causes a waste of resources and environmental pollution. , The residue is generally rich in calcium and has small particle-size distribution, which is suitable for CO 2 mineralization. , The DFS is mainly composed of calcium hydroxide and calcium sulfate, calcium sulfite, and calcium carbonate. The participation of calcium hydroxide enhances the activity of mineralization while the presence of calcium sulfate might cause an adverse effect on amine solvents.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Absorption–Mineralization Process for CO₂ Capture and Sequestration: Reaction Mechanism, Recycling Stability, and Energy Evaluation

Wang

Song

et al. 2021

ACS Sustainable Chem. Eng.

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An integrated absorption–mineralization process (IAM) was proposed to desorb and mineralize CO2 captured by amine solvents using the semidry desulfurization slag (DFS). Four typical amine solvents (monoethanolamine, diethanolamine, methyl-diethanolamine, and 2-amine-2-methyl-1-propanol) were investigated in the IAM process to evaluate the working capacity, recycling stability, and regeneration ability of the amine solvents. The reaction mechanism between CO2-saturated amine solutions and the DFS was interpreted with characterization by Fourier transform infrared spectroscopy and nuclear magnetic resonance. The results indicated that bicarbonates were more beneficial to CO2 chemical desorption than carbamates. Calcium hydroxide could mineralize bicarbonate and regenerate protonated amines, while calcium sulfate could only desorb bicarbonates and carbamates. By adjusting the solid–liquid ratio to prevent calcium from participating in mineralization, 2-amine-2-methyl-1-propanol showed the best recycling performance among all the amines because of its fast absorption rate, high CO2 desorption efficiency, and excellent stability.

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Polymorphs of pure calcium carbonate prepared by the mineral carbonation of flue gas desulfurization gypsum

Cited by 34 publications

References 34 publications

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

The technology of CO₂ sequestration by mineral carbonation: current status and future prospects

An Integrated Absorption–Mineralization Process for CO₂ Capture and Sequestration: Reaction Mechanism, Recycling Stability, and Energy Evaluation

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Polymorphs of pure calcium carbonate prepared by the mineral carbonation of flue gas desulfurization gypsum

Cited by 34 publications

References 34 publications

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

Utilization of Gaseous Carbon Dioxide and Industrial Ca-Rich Waste for Calcium Carbonate Precipitation: A Review

The technology of CO2 sequestration by mineral carbonation: current status and future prospects

An Integrated Absorption–Mineralization Process for CO2 Capture and Sequestration: Reaction Mechanism, Recycling Stability, and Energy Evaluation

Contact Info

Product

Resources

About

The technology of CO₂ sequestration by mineral carbonation: current status and future prospects

An Integrated Absorption–Mineralization Process for CO₂ Capture and Sequestration: Reaction Mechanism, Recycling Stability, and Energy Evaluation