Conditions required for multiple reuses of solvents in indirect carbonation

Kim, Myoung-Jin; Jung, Sungsu

doi:10.1016/j.jcou.2020.101306

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…For wet carbonation methods, solvent recovery and reuse is also crucial. Reusing solvents has the potential to increase financial benefits and reducing energy consumption [24]. However, there is still no research that investigates glycine-assisted wet carbonation of SS.…”

Section: Introductionmentioning

confidence: 99%

Effect of Glycine on the Wet Carbonation of Steel Slag Used as a Cementitious Material

Cao,

Zhao,

Wang

et al. 2024

Materials

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The wet carbonation process of steel slag (SS) is envisaged to be an effective way to sequestrate CO2 and improve the properties of SS as a supplementary cementitious material. However, the carbonation process still struggles with having a low carbonation efficiency. This paper studied the effect of glycine on the accelerated carbonation of SS. The phase composition change of carbonated SS was analyzed via XRD, FT-IR, and TG–DTG. The carbonation process of SS is facilitated by the assistance of glycine, with which the carbonation degree is increased. After 60 min of carbonation, SS with glycine obtained a CO2 sequestration rate of 9.42%. Meanwhile, the carbonation reaction could decrease the content of free calcium oxide in SS. This significantly improves the soundness of SS–cement cementitious material, and the compressive strength of cementitious materials that contain carbonated SS with glycine is improved. Additionally, the cycling performance of glycine in the successive wet carbonation process of SS was investigated. Multicycle experiments via solvent recovery demonstrated that although the promotion effect of glycine was reduced after each cycle, compared with the SS–water system, the carbonation process could still be facilitated, demonstrating that successive wet carbonation via solvent recovery has considerable potential. Herein, we provide a new idea to facilitate the wet carbonation process of SS and improve the properties of SS–cement cementitious material.

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Section: Introductionmentioning

confidence: 99%

Effect of Glycine on the Wet Carbonation of Steel Slag Used as a Cementitious Material

Cao,

Zhao,

Wang

et al. 2024

Materials

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“…The addition of chelating agents and organic additives during the carbonization process can limit the nucleation or growth of calcium carbonate particles, controlling the morphology or structure of inorganic particles. [16,22] Recently, spherical calcium carbonate has attracted increasing research interest because of its high specific surface area, high porosity, high dispersibility, and low specific gravity.…”

Section: Introductionmentioning

confidence: 99%

Nano‐Calcium Carbonate with Core–Shell Structure was Prepared by Dopamine Chelation Using Pluronic F‐127 as Template

Shu,

Gong,

Zhang

et al. 2024

Part & Part Syst Charact

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Herein, a new template carbonization method is used to prepare calcite‐type nano‐calcium carbonate (CaCO3) with a core–shell structure using calcium hydroxide as a solute and Pluronic F‐127 as a templating and pore‐forming agent. Dopamine hydrochloride is added to control the size of calcium hydroxide particles. The morphology, particle size, and crystal type of CaCO3 are characterized via transmission electron microscopy, X‐ray diffraction, nanoparticle size, and zeta potentiometer. The creation of core–shell calcium carbonate nanoparticles is examined in relation to reaction circumstances (i.e., additive sequence, additive amount, and additive mixing time), carbonization temperature, liquid flow rate, and templates with varying chain lengths. Furthermore, a discussion is held regarding the formation mechanism of spherical core–shell calcium carbonate that is created using the innovative template carbonization method. The results show that the order, amount, liquid flow rate, and template type of additives have a significant effect on the crystal shape of calcium carbonate nanoparticles. The mixing time of additives has a significant effect on the particle size of calcium carbonate nanoparticles. Interestingly, the thickness of the shell depends on the carbonization temperature, and too slow or too fast flow rate will lead to the formation of cyclic calcium carbonate nanoparticles.

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Effect of sucrose on CO2 storage, vaterite content, and CaCO3 particle size in indirect carbonation using seawater

Kim

2022

Journal of CO2 Utilization

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Conditions required for multiple reuses of solvents in indirect carbonation

Cited by 5 publications

References 14 publications

Effect of Glycine on the Wet Carbonation of Steel Slag Used as a Cementitious Material

Effect of Glycine on the Wet Carbonation of Steel Slag Used as a Cementitious Material

Nano‐Calcium Carbonate with Core–Shell Structure was Prepared by Dopamine Chelation Using Pluronic F‐127 as Template

Effect of sucrose on CO2 storage, vaterite content, and CaCO3 particle size in indirect carbonation using seawater

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