Formation and polymorph transformation trends of metal carbonate in inorganic CO2 conversion process using simulated brine: Study for post-treatment of industrial brine via CO2 conversion

Kim, Injun; Park, Jin-Won; Yoo, Yunsung

doi:10.1016/j.psep.2022.04.015

Cited by 7 publications

(6 citation statements)

References 38 publications

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“…Considering the thermodynamic stability and kinetic inertia of CO 2 [18], it is both challenging and groundbreaking to explore catalysts with efficient catalytic activity. Up to now, many catalytic systems have been applied to the high-value conversion of CO 2 , including zeolites [19,20], ionic liquids [21,22], inorganic salts [23,24], metal-organic frameworks (MOFs) [25,26], covalent organic frameworks (COFs) [27,28], porous organic polymers (POPs) [29,30], etc. Despite the previous efforts of many researchers, there are some deficiencies in the catalytic efficiency and catalytic scope of these systems; therefore, it is of great importance to develop catalysts with high efficiency and stability that can be applied to multiple scopes of high value-added conversions of CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Rich Porous Organic Polymers with Supported Ag Nanoparticles for Efficient CO2 Conversion

Cui

et al. 2022

Nanomaterials

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As CO2 emissions increase and the global climate deteriorates, converting CO2 into valuable chemicals has become a topic of wide concern. The development of multifunctional catalysts for efficient CO2 conversion remains a major challenge. Herein, two porous organic polymers (NPOPs) functionalized with covalent triazine and triazole N-heterocycles are synthesized through the copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) reaction. The NPOPs have an abundant microporous content and high specific surface area, which confer them excellent CO2 affinities with a CO2 adsorption capacity of 84.0 mg g−1 and 63.7 mg g−1, respectively, at 273 K and 0.1 MPa. After wet impregnation and in situ reductions, Ag nanoparticles were supported in the NPOPs to obtain Ag@NPOPs with high dispersion and small particle size. The Ag@NPOPs were applied to high-value conversion reactions of CO2 with propargylic amines and terminal alkynes under mild reaction conditions. The carboxylative cyclization transformation of propargylic amine into 2-oxazolidinone and the carboxylation transformation of terminal alkynes into phenylpropiolic acid had the highest TOF values of 1125.1 and 90.9 h−1, respectively. The Ag@NPOP-1 was recycled and used five times without any significant decrease in catalytic activity, showing excellent catalytic stability and durability.

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Section: Introductionmentioning

confidence: 99%

Nitrogen-Rich Porous Organic Polymers with Supported Ag Nanoparticles for Efficient CO2 Conversion

Cui

et al. 2022

Nanomaterials

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“…As for the morphology, the calcium carbonate solid produced normally can exhibit three polymorphs: calcite, aragonite, and vaterite . Vaterite (denoted as V) is the most unstable form among them, usually present in a spherical or ellipsoidal shape .…”

Section: Resultsmentioning

confidence: 99%

“…To investigate the possibility of obtaining the single-crystal form, solvent-mediated crystal transformation was studied in this section, according to a previously reported approach. , Solids were put into water as solvent mediated after drying from water. Details are provided in Section S1.3 in the Supporting Information.…”

Section: Methodsmentioning

confidence: 99%

“…As for the morphology, the calcium carbonate solid produced normally can exhibit three polymorphs: calcite, aragonite, and vaterite. 36 Vaterite (denoted as V) is the most unstable form among them, usually present in a spherical or ellipsoidal shape. 67 Aragonite (denoted as A) is more stable than vaterite but is thermodynamically still considered a metastable crystal form.…”

Section: Effect Of Solution Temperature On Carbonationmentioning

confidence: 99%

“…Rivera et al 35 have explored the feasibility of CaCl 2 carbonation using ethanolamine (MEA), aminoethylethanolamine (AEEA), and polyethylenimine (PEI) and investigated the aspects of crystal morphology and Ca conversion under different temperatures. Kim et al 36 have investigated the effect of sodium ions in CaCl 2 solution on the morphology of CaCO 3 by using MEA as the promoter. Zheng et al 37 and Liu et al 38 have applied amino acid for CO 2 sequestration and CaCO 3 production.…”

Section: Introductionmentioning

confidence: 99%

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Amine-Assisted Simultaneous CO₂ Absorption and Mineral Carbonation: Effect of Different Categories of Amines

Mao

Yang

Gerven

2023

Environ. Sci. Technol.

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The hybrid technology of CO 2 capture−mineral carbonation (CCMC) using alkaline streams has emerged in recent years. However, thus far, there has been no comprehensive study revealing the mechanisms of the simultaneous CCMC process regarding the choice of amine types and sensitivity of parameters. Combining with the analysis of multistep reaction mechanisms for different amines, we investigated a representative from each category in CCMC using calcium chloride to simulate the alkaline resource after leaching, i.e., primary (ethanolamine, MEA), secondary (diisopropanolamine, DIPA), tertiary (diethylethanolamine, DEAE), and triamine (diethylenetriamine, DETA), respectively. In the adsorption step, increasing the amine concentration beyond 2 mol/L reduced the absorption efficiency of DEAE due to the hydration mechanism, motivating a rational choice of concentration. In CCMC sections, when the amine concentration increased, only DEAE exhibited an increased carbonation efficiency of up to 100%, while DETA showed the lowest conversion. The carbonation of DEAE demonstrated the least sensitivity to temperature. The crystal transformation experiments suggested that over time, the produced vaterite could completely transform to calcite or aragonite, except those from DETA. Thus, with rationally chosen conditions, DEAE was demonstrated ideal for CCMC. These findings obtained in this work provided a theoretical foundation for designing future CCMC processes.

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Total Resource Circulation of Desalination Brine: A Review

Lee,

Ho,

Chen

et al. 2024

Advanced Sustainable Systems

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Desalination brine is a concentrated stream that is generated during the desalination process. Brine commonly has high salinity and TDS (total dissolved ions), which contains ions such as Na+, K+, Ca2+, Mg2+, Cl−, SO42−, HCO3−, PO43−, and some critical elements. Currently, the brine treatment mainly applies direct disposal, like surface water discharge, sewer discharge, deep‐well injection, and evaporation ponds. However, these methods can cause harm to marine ecosystems, soil, and groundwater. Therefore, brine can be regarded as a resource to be reutilized. This work then aims to highlight the novel developments of brine application. For example, Na, Ca, and Mg in brine can be employed for carbon capture and utilization with ammonia, amines, and alkaline substances. With slight adjustment, brine can also be directly used as irrigation water, aquaculture water, and the activation of biochar. Furthermore, brine holds a higher concentration of critical elements, which makes many countries and scholars start to conduct element extraction, reducing the amount of ore exploitation. At last, the major obstacles related to these advancements in sustainability, expenses, and technological aspects are outlined, and promising research trends of brine reutilization are also suggested.

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Formation and polymorph transformation trends of metal carbonate in inorganic CO2 conversion process using simulated brine: Study for post-treatment of industrial brine via CO2 conversion

Cited by 7 publications

References 38 publications

Nitrogen-Rich Porous Organic Polymers with Supported Ag Nanoparticles for Efficient CO2 Conversion

Nitrogen-Rich Porous Organic Polymers with Supported Ag Nanoparticles for Efficient CO2 Conversion

Amine-Assisted Simultaneous CO₂ Absorption and Mineral Carbonation: Effect of Different Categories of Amines

Total Resource Circulation of Desalination Brine: A Review

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Formation and polymorph transformation trends of metal carbonate in inorganic CO2 conversion process using simulated brine: Study for post-treatment of industrial brine via CO2 conversion

Cited by 7 publications

References 38 publications

Nitrogen-Rich Porous Organic Polymers with Supported Ag Nanoparticles for Efficient CO2 Conversion

Nitrogen-Rich Porous Organic Polymers with Supported Ag Nanoparticles for Efficient CO2 Conversion

Amine-Assisted Simultaneous CO2 Absorption and Mineral Carbonation: Effect of Different Categories of Amines

Total Resource Circulation of Desalination Brine: A Review

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Product

Resources

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Amine-Assisted Simultaneous CO₂ Absorption and Mineral Carbonation: Effect of Different Categories of Amines