combined slag energy storage mechanism
Synergistic co-combustion of carbon-rich fraction from coal gasification fine slag and corncob char: Performance, mechanism…
The activation energy was reduced due to the blending of RC-CC, and the activation energy was lowest (132.19 kJ/mol) when the RC adding ratio was 60%. The co-combustion process was controlled by the F3 model (chemical third-order reaction kinetics), and it was a typical gas-solid phase reaction with a progressive process from the outsides …
Mechanism of arsenic distribution and migration during iron extraction by copper slag-steel slag combined …
In this study, a combined reforming and reduction smelting of copper slag-steel slag was proposed to recover iron (Fe) from solid waste while lowering the environmental risks associated with the management of such waste. In this process, copper slag was mixed with steel tailing to sinter, and made into pellets after magnetic separation.
A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag …
Semantic Scholar extracted view of "A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag" by G. Sang et al. DOI: 10.1016/J.CERAMINT.2021.02.169 Corpus ID: 233918575 A novel composite for thermal energy
Self-compensation and attenuation mechanisms of carbide slag …
This study examined the characteristics of cyclic heat storage (dehydration) and heat release (hydration) of carbide slag by establishing a multicycle thermochemical heat storage experimental system combined with advanced …
Materials | Free Full-Text | Preparation and Strength Formation Mechanism of Calcined Oyster Shell, Red Mud, Slag…
The use of bulk solid-waste iron tailing (IOT), red mud (RM), and oyster shells to prepare cemented paste backfill (CPB) can effectively solve the ecological problems caused by industrial solid waste storage and improve the utilization rate of such materials. In this study, a new type of CPB was prepared by partially replacing slag with …
Simultaneous CO2 capture and thermochemical heat storage by modified carbide slag …
Utilizing industrial solid waste carbide slag for thermochemical heat storage presents an inexpensive and high-energy-storage-density solution with potential industrial applications. Investigating the performance of carbide slag in thermochemical heat storage cycles can offer insights for efficient resource utilization within the field of heat storage.
Cyclic performance characterization of a high-temperature thermal energy storage system packed with rock/slag pebbles granules combined …
The VF of PCMs influences the system output, both in terms of energy storage and release, the heat storage period and the total energy stored increased by 4.5%, when the VF of the PCM70 increases ...
Journal of Energy Storage | Vol 76, 15 January 2024
Development of the supercapacitor efficiency of the two-dimensional graphene oxide decorated by nano magnetite through building novel nanocomposites using nanoparticles of cobalt, manganese, vanadium, and zirconium oxides. Nagi M. El-Shafai, Mohamed S. Ramadan, AbdulAziz A. Alayyafi, Yasser S. Mostafa, Ibrahim El-Mehasseb. Article 109727.
Solar-assisted combined cooling and power system integrating energy storage …
This paper proposes a solar-assisted combined cooling and power system that integrates energy storage and desulfurization for recovering exhaust waste heat and solar energy. Firstly, the combined cooling and power system model is built in the MATLAB environment, and its reliability is verified with the help of previous references.
Review Accelerated carbonation of steel slag: A review of methods, mechanisms …
Wet carbonation involves a multiphase reaction involving gas-liquid-solid interactions. In an aqueous environment, the precipitation rate of Ca 2+ /Mg 2+ on the surface of steel slag accelerates, consequently enhancing the rate of carbonation reaction [69]. Fig. 2 illustrates the mechanism of wet carbonation of steel slag based on a …
A novel composite for thermal energy storage from alumina hollow sphere/paraffin and alkali-activated slag …
A tremendous quantity of energy has been used in the building and a huge amount of CO 2 emitted to maintain comfortable indoor temperatures. In order to lower existing level of CO 2 emissions, using eco-friendly alternative binders instead of ordinary Portland cement (OPC) and improving buildings'' energy efficiency are indispensable.
Self-compensation and attenuation mechanisms of carbide slag in multicycle thermochemical heat storage …
Utilizing industrial solid waste carbide slag for thermochemical heat storage presents an inexpensive and high-energy-storage-density solution with potential industrial applications. Investigating the performance of carbide slag in thermochemical heat storage cycles can offer insights for efficient resource utilization within the field of heat storage.
Analysis of Hydration Mechanism of Steel Slag-Based …
In order to realize the resourceful, large-scale, and high-value utilization of steel slag, which is a bulk industrial solid waste, and to reduce the use of cement-based cementitious materials, this study adopted the coupled excitation effect of sodium carbonate–magnesium oxide–desulfurization gypsum to excite steel slag-based …
Mechanism and kinetics study on ultrasonic combined with oxygen enhanced leaching of zinc and germanium from germanium-containing slag …
Ultrasound combined with oxygen can obtain stronger oxidation ability. The leaching rate of zinc and germanium in the UOL is 4.92% and 9.80% higher than that in the conventional CL, respectively. The UOL leaching method can improve the kinetics and reduce the activation energy of the reaction.
The characterization and mechanism of carbonated steel slag …
Steel slag can be applied as a promising carbon fixing material. This paper mainly explored the characterization and carbonation mechanism of steel slag and its products at relatively low CO 2 pressure. The experimental conditions were pure CO 2 gas, 0.02 MPa CO 2 pressure and 24 h carbonation time. ...
Mechanical Performance Optimization and Microstructural Mechanism Study of Alkali-Activated Steel Slag–Slag …
The optimal proportion of alkali-activated steel slag–slag cementitious materials is investigated by considering the combined effects of steel slag content, alkali content, water glass modulus, and water–binder ratio using the Box–Behnken design in response surface methodology. Qualitative and semi-quantitative analyses of X-ray …
Effects of two plant species combined with slag-sponges on the …
Plants are an important part of CWs, but the strengthening effect and mechanism of plants on slag-sponge CWs are still unknown, thus affecting the application of slag-sponge CWs (Wang et al. 2020b). Secondly, the biological mechanism of slag-sponge CW depends on the plant-microorganism interaction, but the plant-microorganism …
A multi-scale experimental investigation of the feasibility of using integrated coal gasification combined slag …
Moreover, substituting 30% of the cement with IGCC slag would reduce the embodied energy by approximately 12% and the CO 2 emission by approximately 28%, respectively. The higher reduction in CO 2 emission comes from reducing the amount of limestone, which decomposed to CaO and CO 2 during the production of cement clinkers …
Self-compensation and attenuation mechanisms of carbide slag in multicycle thermochemical heat storage,Renewable Energy …
Utilizing industrial solid waste carbide slag for thermochemical heat storage presents an inexpensive and high-energy-storage-density solution with potential industrial applications. Investigating the performance of carbide slag in thermochemical heat storage cycles can offer insights for efficient resource utilization within the field of heat storage.
Highly Cyclic Stability and Absorbent Activity of Carbide Slag Doped with MgO and ZnO for Thermochemical Energy Storage …
Increasing the MgO content (45%) yielded no further enhancement in the energy storage stability, and the energy storage conversion rate decreased with increasing number of cycles. Aihara et al. (31) used TiO 2 to modify limestone, and the resulting CaTiO 3 improved the energy storage properties of the material.
Self-compensation and attenuation mechanisms of carbide slag in multicycle thermochemical heat storage …
Thermochemical storage is very interesting for long-term storage as it can be carried out at room temperature with no energy losses hydration/hydration cycle of Ca(OH)2/CaO has been applied for ...
Synergistic effect and mechanism of lithium slag on mechanical properties and microstructure of steel slag …
In this study, steel slag and lithium slag were used to replace cement to address the low activity of steel slag, which limits its large-scale utilization. The compressive strength, flow properties, dissolution characteristics, hydration products, and microstructure of composite cementitious materials containing steel slag and lithium slag were …
Mechanism and process study on steel slag enhancement for …
Among steel slag components, MgO had the strongest ability to enhance CO 2 capture. CO 2 solubility of seawater with 0.4% MgO was 0.0044 at 25 °C and 0.3 MPa. In addition, the combination addition of MgO and CaO had a strong synergistic effect on CO 2 capture by seawater. Fe 2 O 3 had a more remarkable capacity to accelerate CO 2 …
Thermal-chemical conversion of sewage sludge based on waste heat cascade recovery of copper slag: Mass and energy …
Copper slag waste heat can provide energy and metallic oxide in copper slag has catalytic effect on carbonaceous solid waste gasification reaction. The gasification energy absorption characteristics and kinetics of typical solid waste, sludge, enteromorpha and lignite with air as oxidation agent has been studied using copper slag as heat carrier.
Molten salt corrosion mechanisms of nitrate based thermal energy storage materials for concentrated solar …
Corrosion mechanisms for current heat transfer fluid and storage media used in CSP plants working at temperatures from 300 C to 600 C are reviewed in this paper. The studies found in the literature show that these mechanisms are influenced by the impurities present in the salt and the relation between Mg(NO 3 ) 2, moisture, CO 2, …
Development of a novel alkali-activated slag-based composite containing paraffin/ceramsite shape stabilized …
Shape-stabilized phase change material (SSPCM) was prepared with paraffin and ceramsite. • A novel alkali-activated slag-based thermal energy storage composite (ASTESC) was developed. • The thermo …
Experimental study of carbon fiber reinforced alkali-activated slag composites with micro-encapsulated PCM for energy storage …
Alkali-activated slag composites with micro-encapsulated PCM and CF were prepared for energy storage. • Using CF can improve mechanical properties of both OPC-MPCM and AAS-MPCM dramatically. • Mechanism of CF reinforcement in the composites was
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