Hydration Mechanism of Solid Waste Gelling Materials Containing Semi-Dry Desulfurization Ash

Gels, Journal Year: 2025, Volume and Issue: 11(3), P. 193 - 193

Published: March 11, 2025

This study investigated the feasibility of using semi-dry desulfurization ash (DA) in combination with blast furnace slag (BFS) to prepare gelling materials, aiming improve resource utilization DA. The effects DA dosage and mechanical grinding on compressive strength hydration mechanism BFS-DA materials were investigated. results showed that optimum ratio was 60:40, strengths 14.21 MPa, 20.24 43.50 46.27 MPa at 3, 7, 28, 56 days, respectively. Mechanical greatly improved activity gel greatest increase 90 days for BFS mixed milled 30 min, increases 89.86%, 66.36%, 24.56%, 25.68%, respectively, 26.22 35.6 58.33 63.97 cumulative heat slurry about 120 J/g. main products formed ettringite, C-S-H gel, AFm, Friedel’s salt. Calcium sulfite participated hydration, a new product, Ca4Al2O6SO3·11H2O, formed. can be effectively used BFS-based its performance meets requirements GB/T 28294-2024 standard, which provides potential solution resources reduction impact environment.

Language: Английский

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Recent Advances in Materials, Synthesis, and Reaction Model of Particle Adsorbent for Flue Gas Desulfurization

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1653 - 1653

Published: April 8, 2025

Particle adsorbents have gained significant traction in flue gas desulfurization applications, primarily attributed to their high structural homogeneity and large specific surface area. To address the multifaceted requirements of industrial sectors regarding configurations physicochemical properties particle while promoting sustainable manufacturing practices, this study systematically evaluates critically appraises contemporary advancements desulfurizing agent technologies. The synthesis these findings establishes a theoretical framework facilitate technological innovation progress within desulfurizer domain. research systems adsorbents, encompassing active components, inert carriers, preparation methodologies, gas-solid reaction models, were comprehensively reviewed. advantages current limitations then summarized. Finally, fundamental principles trajectories application fields distinct adsorbent elucidated. An analysis developmental trends indicated that enhancing utilization efficiency components improving cyclic stability remained critical engineering challenges. It is posited pursuit activity, thermal stability, mechanical strength, superior anti-aggregation/sintering performance constitutes key directions for advancement China's industry.

Language: Английский

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Optimizing crystallization processes in desulfurized gypsum using zinc oxide for superior construction gypsum

Alexandria Engineering Journal, Journal Year: 2025, Volume and Issue: 124, P. 484 - 493

Published: April 11, 2025

Language: Английский

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New technology for green co-production of CaSO4 and industrial salt using waste heat and oxygen-enriched flash roasting of desulfurization ash

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2024, Volume and Issue: 168, P. 105902 - 105902

Published: Dec. 17, 2024

Language: Английский

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