Integrated Recovery of Iron and Nickel from Olivine Ores Using Solvent Extraction: Synergistic Production of Amorphous Silica and Carbonates through pH Adjustment and Carbon Mineralization

ACS ES&T Engineering, Год журнала: 2024, Номер unknown

Опубликована: Сен. 20, 2024

Язык: Английский

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Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Energy & Fuels, Год журнала: 2024, Номер 38(15), С. 14483 - 14492

Опубликована: Июль 12, 2024

Язык: Английский

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Integration of Modified Solvay Process for Sodium Bicarbonate Synthesis from Saline Brines with Steelmaking for Utilization of Electric Arc Furnace Slag in CO2 Sequestration and Reagent Regeneration

Minerals, Год журнала: 2024, Номер 14(1), С. 97 - 97

Опубликована: Янв. 16, 2024

In the pursuit of sustainable solutions for carbon dioxide CO2 sequestration and emission reduction in steel industry, this study presents an innovative integration steelmaking slag with modified Solvay process sodium bicarbonate (NaHCO3) synthesis from saline brines. Utilizing diverse minerals, including electric arc furnace (EAF) slag, olivine, kimberlite, explored their reactivity under varied pH conditions examined potential ammonium regeneration. SEM WDXRF analyses were utilized to acquire morphological chemical compositions minerals. Advanced techniques such as XRD ICP-OES employed meticulously analyze mineralogical transformations elemental concentrations. The findings demonstrate that owing its superior buffering capabilities, outperforms natural finer particles significantly elevated levels, facilitating efficient Geochemical modeling provided valuable insights into mineral stability reactivity, which aligned results. This synergistic approach not only aids capture through carbonation but also minimizes waste, showcasing a environmentally responsible solution mitigation industry.

Язык: Английский

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Greener synthesis of functionalized graphene oxide for the adsorption of hydrogen sulfide present in natural gas

Carbon, Год журнала: 2025, Номер unknown, С. 119988 - 119988

Опубликована: Янв. 1, 2025

Язык: Английский

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Natural Carbonation of Alkaline Industrial Wastes: A Large-Scale, Unaccounted Sink for CO2

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Achieving international climate goals will likely require large-scale removal of carbon dioxide from the atmosphere ¹. A promising means (CDR) is by enhanced weathering and carbonation various alkaline industrial wastes such as slags ash ^2,3. Although global potential has been estimated ^4–7, magnitude uptake natural these worldwide remains uncertain. Here, using results more than a decade experiments an extensive dataset activity waste disposal, we show that annual 0.43 Gt CO₂ (95% CI: 0.33–0.53 CO₂) in 2020, increasing at average rate 2% per year for past decade. Between 1930 estimate have absorbed 14.0 11.2–25.2 carbonation. Our reveal extent to which represent unaccounted sink cycle, also highlight opportunities enhancing future.

Язык: Английский

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Reshaping Chemical Manufacturing Towards Green Process Intensification: Recent Findings and Perspectives

Processes, Год журнала: 2025, Номер 13(2), С. 459 - 459

Опубликована: Фев. 8, 2025

The chemical industry faces major challenges despite recent progress in the transition to more environmentally friendly processes. Sustainable industrial chemistry relies on optimization of protocols and downstream processes such as extraction, purification, drying. Process intensification, which includes non-conventional techniques continuous manufacturing, has emerged a key strategy improve efficiency environmental impact. Technologies ultrasound, microwaves, mechanochemistry, reactive extrusion offer improved performance but face scalability proprietary barriers. Flow offers additional benefits, including smaller reactors, lower energy consumption (from 40 90%), increased safety through continuous, automated reactions. However, implementing these methods requires overcoming engineering, economic, regulatory hurdles. Biphasic catalysis sonochemical activation liquid–liquid systems are promising approaches for scalable reactions under mild conditions. pharmaceutical industry, source waste, shown resistance due high validation costs complex regulations. Fortunately, international institutions have introduced programs facilitate introduction advanced technologies. Future perspectives emphasize integration modular, intensified with digitalization smart manufacturing. Collaborative, transdisciplinary research will be crucial accelerating commercialization addressing sustainability production.

Язык: Английский

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Toward Carbon‐Negative Methanol Production from Biogas: Intensified Membrane Reactor

ChemCatChem, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 6, 2024

Abstract The modern world's major challenges, such as global warming, air pollution, and increasing energy demands, escalate the importance of sustainable development transition toward renewables using innovative environmentally friendly solutions, intensifying chemical processes, to reduce carbon footprints effectively. Aiming enhance process negative emissions, this perspective explores intensified membrane reactors for reducing intensity converting biogas into methanol, a versatile feedstock, renewable liquid fuel. Syngas methanol synthesis catalysts, membranes were explored, novel reactor designs proposed. Introduction selective catalytic reaction zone combine separation steps could system efficiency intensify by recycling materials, besides costs required process: continuous harnessing products shifts reactions desired species while materials enhances efficiency, separating water from reduces extra processes separation. successful implementation technology holds significant promise developments in producing chemicals fuel methane dioxide emissions achieving carbon‐negative technologies.

Язык: Английский

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Integration of Modified Solvay Process for Sodium Bicarbonate Synthesis from Saline Brines with Steelmaking for Utilization of Electric Arc Furnace Slag in CO₂ Sequestration and Reagent Regeneration

Опубликована: Окт. 31, 2023

In the pursuit of sustainable solutions for carbon dioxide CO2 sequestration and emission reduction in steel industry, this study presents an innovative integration steelmaking slag with modified Solvay process sodium bicarbonate (NaHCO3) synthesis from saline brines. Utilizing diverse minerals, including electric arc furnace (EAF) slag, olivine, kimberlite, explored their reactivity under varied pH conditions examined potential ammonium regeneration. Advanced techniques such as XRD ICP-OES were employed to meticulously analyze mineralogical transformations elemental concentrations. The findings demonstrate that owing its superior buffering capabilities, outperforms natural minerals. finer particles significantly elevated levels, facilitating efficient Geochemical modeling provided valuable insights into mineral stability which aligned results. This synergistic approach not only aids capture through carbonation but also minimizes waste, showcasing a environmentally responsible solution mitigation industry.

Язык: Английский

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A miniature jet pump for slurries

Chemical Engineering Journal, Год журнала: 2024, Номер 503, С. 158293 - 158293

Опубликована: Дек. 5, 2024

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Recovery of minerals and energy-rich materials from brine to promote circular economy

Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 653 - 693

Опубликована: Янв. 1, 2024

Язык: Английский

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