Precipitation of potassium-based carbonates for carbon dioxide fixation via the carbonation and re-carbonation of KOH dissolved aqueous ethanol solutions

Pak, Jin H.; Han, Sang‐Jun; Wee, Jung‐Ho

doi:10.1016/j.cej.2021.131669

Cited by 8 publications

(8 citation statements)

References 32 publications

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“…Finally, at ~480 • C, a stable behavior is observed, with a remaining residue of ~5% wt. Similar behavior has been reported for PVA [4,36] and PVA with BA/VAc [42] or PMMA blends [43].…”

Section: Thermal Analysissupporting

confidence: 86%

“…Finally, at ~480 °C, a stable behavior is observed, with a remaining residue of ~5% wt. Similar behavior has been reported for PVA [4,36] and PVA with BA/VAc [42] or PMMA blends [43]. PVA-VAVTD blends show TGA curves very close to those of VAVTD and PVA polymers, and they do not show changes with the VAVTD amount included in the polymeric matrix.…”

Section: Thermal Analysissupporting

confidence: 82%

“…Thus, CO 2 from the air could always be in contact with the blend. However, it is known that the KOH solution is used to capture CO 2 from the air, generating K 2 CO 3 [ 36 ]. Furthermore, PVA-KOH GEPS previously synthesized by our group had to be prepared in a controlled atmosphere to prevent carbon dioxide forming during the casting and when the membrane was immersed in KOH 12 M, preventing the formation of carbonates inside the polymer [ 4 ].…”

Section: Resultsmentioning

confidence: 99%

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Properties of the PVA-VAVTD KOH Blend as a Gel Polymer Electrolyte for Zinc Batteries

Velez

Reyes

Díaz-Barrios

et al. 2021

Gels

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Rechargeable zinc-air batteries are promising for energy storage and portable electronic applications because of their good safety, high energy density, material abundance, low cost, and environmental friendliness. A series of alkaline gel polymer electrolytes formed from polyvinyl alcohol (PVA) and different amounts of terpolymer composed of butyl acrylate, vinyl acetate, and vinyl neodecanoate (VAVTD) was synthesized applying a solution casting technique. The thin films were doped with KOH 12M, providing a higher amount of water and free ions inside the electrolyte matrix. The inclusion of VAVTD together with the PVA polymer improved several of the electrical properties of the PVA-based gel polymer electrolytes (GPEs). X-ray diffraction (XRD), thermogravimetric analysis (TGA), and attenuated total reflectance- Fourier-transform infrared spectroscopy (ATR-FTIR) tests, confirming that PVA chains rearrange depending on the VAVTD content and improving the amorphous region. The most conducting electrolyte film was the test specimen 1:4 (PVA-VAVTD) soaked in KOH solution, reaching a conductivity of 0.019 S/cm at room temperature. The temperature dependence of the conductivity agrees with the Arrhenius equation and activation energy of ~0.077 eV resulted, depending on the electrolyte composition. In addition, the cyclic voltammetry study showed a current intensity increase at higher VAVTD content, reaching values of 310 mA. Finally, these gel polymer electrolytes were tested in Zn–air batteries, obtaining capacities of 165 mAh and 195 mAh for PVA-T4 and PVA-T5 sunk in KOH, respectively, at a discharge current of −5 mA.

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“…Finally, at ~480 • C, a stable behavior is observed, with a remaining residue of ~5% wt. Similar behavior has been reported for PVA [4,36] and PVA with BA/VAc [42] or PMMA blends [43].…”

Section: Thermal Analysissupporting

confidence: 86%

Section: Thermal Analysissupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Properties of the PVA-VAVTD KOH Blend as a Gel Polymer Electrolyte for Zinc Batteries

Velez

Reyes

Díaz-Barrios

et al. 2021

Gels

View full text Add to dashboard Cite

show abstract

“…Extensive studies have been conducted on the use of methanol and ethanol, which are among the most used industrial solvents to capture carbon dioxide by coupling them with potassium or sodium hydroxides to induce chemical absorption Wee 2016, 2017;Mun et al 2018;Pak et al 2022). In one of their studies, they proposed the use of aqueous solutions of ethanol (60-100 w/w%) with 3 g of potassium hydroxide to produce potassium carbonate, bicarbonate and ethyl carbonate, in a series of bubble columns at ambient conditions (Pak et al 2022). The highest absorption of carbon dioxide and production of potassium ethyl bicarbonate was observed for the solution of 90 w/w% ethanol.…”

Section: Waste From the Organic Industrymentioning

confidence: 99%

Effluents and residues from industrial sites for carbon dioxide capture: a review

et al. 2022

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The adverse effects of climate change calls for the rapid transformation of manufacturing processes to decrease the emissions of carbon dioxide. In particular, a lower carbon footprint can be achieved by capturing carbon dioxide at the site of emission. Here we review the use of industrial effluents, waste and residues to capture carbon dioxide. Waste include steelmaking slag, municipal solid waste incinerator ashes, combustion fly ash, black liquor, paper mill waste, mining waste, cement waste, construction and demolition waste, waste from the organic industry, and flue gas desulfurization gypsum waste. Capture capacities range from 2 to 800 kg of carbon dioxide per ton of waste, depending on processes, waste type and conditions. Cement waste and flue gas desulfurization gypsum waste show the highest capture capacity per ton of waste.

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“…Green low-carbon mining and scientifically used coal are the keys to achieving carbon peaking and carbon neutralization. Some scholars have pointed out that the future development space of the coal industry ultimately depends on whether it can achieve in situ utilization, near-zero emissions, and the application and promotion of carbon capture, utilization, and storage (CCUS) technology. − It is extremely necessary to vigorously develop carbon emission reduction technologies such as CCUS.…”

Section: Introductionmentioning

confidence: 99%

Preparation and CO₂ Adsorption Properties of Porous Particles Based on Alkaline Solid Wastes

et al. 2022

Langmuir

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Goaf filling is an effective method of preventing goaf disasters in mines. If the filling material can mineralize and absorb a large amount of CO 2 , then the goaf will provide a huge amount of space for carbon storage, which will help to achieve carbon peaking and carbon neutrality. The purpose of this article is to prepare a kind of porous particle with high porosity and a large specific surface area that can be used to fill the mined-out area and adsorb a large amount of CO 2 by using the mineralized solid waste as the aggregate. Taking the compressive strength and CO 2 adsorption capacity as the objective function, a chemical foaming method and an orthogonal experiment were used to determine the optimal ratio of porous particles. The results showed that when the masses of carbide slag, oleic acid, cetyltrimethylammonium bromide, sodium hypochlorite, and water were 19.5, 0.3, 0.07, 1.35, and 15 g, respectively, the pore sizes of the prepared porous particles had a gradient distribution, i.e., micropores, mesopores, and macropores accounted for 18.75, 80.93, and 0.32%, respectively. In addition, the compressive strength reached 79.4 N, and the static CO 2 adsorption capacity was 117.43 cm 3 /g. The superimposed calculation of the adsorption capacity and mineralization capacity showed that 1 ton of solid waste can theoretically store approximately 0.66 ton of CO 2 . The pseudo-first-order kinetic model can well fit the adsorption process of an adsorbent for CO 2 , which proves that the adsorption process of adsorbent for CO 2 is a physical adsorption mechanism. The porous particles prepared based on solid waste are harmless and simple in the preparation process. They can fill the underground space of mines after adsorbing CO 2 and realize the integration of solid waste utilization, carbon storage, and underground space disaster management, with significant social, economic, and ecological benefits.

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Precipitation of potassium-based carbonates for carbon dioxide fixation via the carbonation and re-carbonation of KOH dissolved aqueous ethanol solutions

Cited by 8 publications

References 32 publications

Properties of the PVA-VAVTD KOH Blend as a Gel Polymer Electrolyte for Zinc Batteries

Properties of the PVA-VAVTD KOH Blend as a Gel Polymer Electrolyte for Zinc Batteries

Effluents and residues from industrial sites for carbon dioxide capture: a review

Preparation and CO₂ Adsorption Properties of Porous Particles Based on Alkaline Solid Wastes

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Precipitation of potassium-based carbonates for carbon dioxide fixation via the carbonation and re-carbonation of KOH dissolved aqueous ethanol solutions

Cited by 8 publications

References 32 publications

Properties of the PVA-VAVTD KOH Blend as a Gel Polymer Electrolyte for Zinc Batteries

Properties of the PVA-VAVTD KOH Blend as a Gel Polymer Electrolyte for Zinc Batteries

Effluents and residues from industrial sites for carbon dioxide capture: a review

Preparation and CO2 Adsorption Properties of Porous Particles Based on Alkaline Solid Wastes

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Product

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Preparation and CO₂ Adsorption Properties of Porous Particles Based on Alkaline Solid Wastes