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Chapter 11 Iron and Steel Slags

Iron and steel mills are energy- and material-intensive industries because they have brought down the time for transformation from iron ore to steel within a day. Worldwide iron slag production in 2014 was estimated on the order of 310–370 Mt, while steel slag was about 170–250 Mt [7]. In

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Research progress of hydrogen production and CO2 fixation in

As can be seen from Figure 3, slag can be divided into five types, including blast furnace slag (BFS), molten iron pretreatment slag, converter slag (BOFS), electric arc furnace slag (EAFS) and casting residue slag (LFS). In China, converter slag accounts for the largest proportion, reaching 80% of the total steel slag.

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Thermal properties and friction behaviors of slag as energy storage

Steel slag is produced in the melting process of the iron ore and about 10–20% of slag is generated per ton of steel [3]. Steel slag is mostly consist of oxides of aluminum, calcium, iron, magnesium and silicon [7], [19], [20]. This study tested a new sustainable and low-cost sensible thermal energy storage material (STESM) based on

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New Thermal Energy Storage Materials From Industrial Wastes

Slag is one of the main waste materials of the iron and steel manufacturing. Every year about 20 × 106 tons of slag are generated in the U.S. and 43.5 × 106 tons in Europe. The valorization of this by-product as heat storage material in thermal energy storage (TES) systems has numerous advantages which include the possibility to extend the working temperature

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Study on CaO-based materials derived from steel slag for solar

The energy storage density for 30 cycles was reduced by 10.26 % for the pellets compared to the powder material, but the average light absorption rate was improved. [30], generating over 150 million tons of steel slag. Using steel slag as a CaO-based material can alleviate the problems of land waste and environmental pollution caused by the

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Carbon mineralization of steel and iron-making slag: Paving the

Steel and iron-making slag contain 30–60 wt% of calcium oxide (CaO) and 3–15 wt% of magnesium oxide (MgO), suggesting high CO 2 storage capacities [19]. It has been reported that the potential CO 2 sequestration capacity if using alkaline industrial waste is 310 Mt CO 2, and steel and iron-making slag sources can contribute to a 43.5%

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Preparation and thermal shock resistance of solar thermal storage

Therefore, high calcium and high iron steel slag ceramics is an ideal thermal storage material with lower cost and superior thermal shock resistance. (2) Cordierite accelerates sintering by generating large amounts of liquid phase, increasing the density of the sample, changing the phase composition and microstructure, and ultimately improving

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Transforming industrial byproduct to eco-friendly functional material

The enormous volume of this trash makes it difficult for engineers to discover practical solutions to completely employ it in building rather than discarding or disposing it (Mahto and Sinha, 2022), hence, slag utilization offers a promising route for waste recycling while mitigating disposal issues (Li et al., 2022).However, due to its workability, setting time, and

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Thermophysical characterization of a by-product from the steel

This alternative has shown large potential in the thermal energy storage frame as demonstrated by the increasing interests shown by the international scientific and technological community [20], [21], [22]. The main goal of this work is to demonstrate the suitability of steel slag as a heat storage material in a packed bed arrangement.

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Thermal characteristics of sensible heat storage materials applicable

The storage material''s capacity to store heat energy is directly proportional to the specific heat (C p), volume, density, and the change in temperature of the material used for storage. Storage materials used for the sensible heat method can be classified on their physical state: liquid or solids [8] .

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Development of an electric arc furnace steel slag-based ceramic

@article{LopezFerber2022DevelopmentOA, title={Development of an electric arc furnace steel slag-based ceramic material for high temperature thermal energy storage applications}, author={Nicolas Lopez Ferber and Kholoud M. Al Naimi and J.-F. Hoffmann and Khalid Al-Ali and Nicolas Calvet}, journal={Journal of Energy Storage}, year={2022}, url

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Exploration of steel slag for thermal energy storage and

Steel slag is a promising heat storage material which remains stable until 1200 °C and have good thermal cyclic stability. • Thermal performance of steel slag as sensible heat storage material is further enhanced by Na 2 CO 3 activation.. The obtained modified material has the heat storage capacity increased 25.3% and heat conductivity increased more than 32.7%.

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Basic Oxygen Steelmaking Slag: Formation, Reaction, and Energy

The BOS slag was considered a waste in old times but now as a secondary resource because it contains a large amount of thermal energy (temperature up to 1700 °C), chemical energy (metallic and low-valence metallic oxides), and valuable materials (e.g., iron oxides).

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Carbonation of steelmaking slag presents an opportunity for

In 2020, world iron slag production was estimated to be 310–380 million tons, and steel slag production was estimated to be 180–270 million tons [18]. The role of carbon capture and storage in the energy transition. Energy Fuels (2021) steel-making slag as carbon dioxide storage material has great economic and environmental value

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Enhancing Thermal Energy Storage with Modified Steel Slag: A

The authors investigated the potential of utilizing recycled solid waste resources, specifically steel slag, as a sensible heat storage material for thermal energy storage. Moreover, it introduces a novel modification process using sodium carbonate (Na 2 CO 3) to enhance the thermal properties of steel slag.

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Preparation of high temperature sensible heat storage materials

The low melting point of slag is due to the high content of Fe 2 O 3 in slag. If iron is selectively reduced from vanadium extraction tailings, the composition of other transition metallic oxides (mostly TiO 2, Energy density of storage materials can be defined as energy release per unit volume or unit mass.

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Use of some industrial wastes as energy storage media

The amount of energy stored by and extracted from each material in the period 2 p.m. until sunset is calculated and was found to be: iron slag 319, copper chips 272.5, cast iron slag 123.8, copper slag 225.5 and aluminium slag 294.3, all in joules, and the time of energy extraction (half a cycle) ranges between 3.25 h for cast iron slag and 4.

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Experimental study on indirect mineral carbonation using five

Mineral carbonation is one of the known methods for carbon capture, utilization, and storage (CCUS). Slag from the steel industry is studied as a common source of CaCO3 via mineral carbonation owing to its high Ca content. Despite numerous preliminary studies, the optimal factors governing the mineral carbonation of steelmaking slag, such as extraction and

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Analysis of steel making slag pebbles as filler material for

Semantic Scholar extracted view of "Analysis of steel making slag pebbles as filler material for thermocline tanks in a hybrid thermal energy storage system" by Francisco Cabello Núñez et al. Morphological, Structural, and Optical Features of Thermally Annealed Slag Powders Generated from the Iron and Steel Industry: A Source of

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Preparation and characterization of novel low-cost sensible heat

In this study, a thermal energy storage material with high thermal density, wide temperature range, low cost and high thermal cycle stability, is undertaken. Preparation and characterization of solar absorption and thermal storage integrated ceramics from calcium and iron-rich steel slag. Ceram. Int., 49 (2023), pp. 8381-8389, 10.1016/j

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BOF Steel Slag: Critical Assessment and Integrated Approach for

During steel production, the impurities in the hot metal react with the fluxes forming the steel slag. Chemical constituents of this steel slag (SS) are relevant to iron/steelmaking or blended cement manufacture. Harmful impurities present in it, however, limit its recycling to these applications. Japan, Europe, and the US consume a significant amount of

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Journal of Energy Storage

Na 2 CO 3 (AR) and K 2 CO 3 (AR) were purchased from Sinopharm Chemical Reagents Co., Ltd. The SS (converter steel slag) was provided by Anshan Iron & Steel Group Co., Ltd. The chemical composition of SS was characterized by X-ray Fluorescence as shown in Table 1 is worth to note that the obtained result is given as oxides, but it only represents the

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Preparation and characterization of solar absorption and thermal

In this study, solar thermal storage ceramics were prepared using high calcium and high iron steel slag as the main raw material, adding cordierite and using the pressureless sintering method. The steel slag heat storage material has the best performance when the content of pretreated steel slag is 60 wt% and the sintering temperature is

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About Iron slag energy storage material

About Iron slag energy storage material

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