Characterization of Sintering Dust, Blast Furnace Dust and Carbon Steel Electric Arc Furnace Dust

Chang, Feng; Wu, Shengli; Zhang, Fengjie; Lu, Haifei; Du, Kaiping

doi:10.1002/9781119093404.ch10

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…2 It is usually disposed of as waste, causing environmental pollution and loss of valuable resources. 3,4 The reuse of sintering dust is an important practice for the steel industry to reduce waste, conserve resources, and protect the environment. 5 The utilization of sintering dust has attracted a lot of attention from researchers.…”

Section: Introductionmentioning

confidence: 99%

“…Sintering dust is a byproduct of the sintering process used in the production of iron and steel, and it contains valuable elements such as iron, zinc, etc . It is usually disposed of as waste, causing environmental pollution and loss of valuable resources. , The reuse of sintering dust is an important practice for the steel industry to reduce waste, conserve resources, and protect the environment . The utilization of sintering dust has attracted a lot of attention from researchers. , …”

Section: Introductionmentioning

confidence: 99%

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Performance of an SCR Catalyst from Sintering Dust by the Hydrothermal Method and Its Water/Sulfur Resistance

Zhou

et al. 2023

Energy Fuels

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Durability is an issue for selective catalytic reduction (SCR) catalysts due to their susceptibility to sulfur and water poisoning. In this study, Nano-Ce 10 -PSDC HF /ZrO 2 was prepared by the hydrothermal method using sintering dust, and the impact of SO 2 or water vapor on its SCR performance was investigated. The denitrification performance of Nano-Ce 10 -PSDC HF /ZrO 2 was better than that of 0.25-Ce 10 -PSDC HF /ZrO 2 prepared by the impregnation method in the entire temperature interval from 80 to 400 °C. The highest denitrification rate of 93.6% was achieved at 280 °C. Nano-Ce 10 -PSDC HF /ZrO 2 had a smaller particle size and uniform dispersion but also formed a high concentration of Ce 3+ and adsorbed oxygen O α on the surface. Additionally, it showed better resistance to water and sulfur than 0.25-Ce 10 -PSDC HF /ZrO 2 . Even when exposed to 8% H 2 O and 400 ppm SO 2 , the denitrification rate of Nano-Ce 10 -PSDC HF /ZrO 2 remained at 82.1% after 4 h. SO 2 is more toxic to SCR catalysts than H 2 O. The effect of water on catalyst activity is partially reversible. Deactivation of SCR by SO 2 is primarily caused by the formation of ammonium sulfate species, with some contribution from competitive adsorption between SO 2 and NO x . In conclusion, the Nano-Ce 10 -PSDC HF /ZrO 2 catalyst exhibited the best SCR performance, with water and sulfur resistance, and effectively utilized sintering dust, which has potential application value.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of an SCR Catalyst from Sintering Dust by the Hydrothermal Method and Its Water/Sulfur Resistance

Zhou

et al. 2023

Energy Fuels

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“…Some work has been performed on the physicochemical properties and combustion characteristics but for the dust from the blast furnace. Chang et al 12 have carried out tests to have an in-depth understanding on steel plant metallurgical dusts using laser particle size analysis, chemical analysis, X-ray diffraction (XRD), scanning electron microscopy−energy-dispersive X-ray spectroscopy (SEM−EDS), and Fourier transform infrared spectroscopy (FTIR). Zhao et al 13 studied the carbon constitution and microstructure of acid-washing dust from a blast furnace by applying scanning electron microscopy (SEM), laser particle size analysis, XRD, thermogravimetric analysis, and polarization microscopy.…”

Section: Introductionmentioning

confidence: 99%

Study on CO₂ Gasification Reactivity and Structure Characteristics of Carbonaceous Materials from the Corex Furnace

et al. 2018

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The gasification reactivities of four pretreated carbonaceous materials from the Corex furnace, including one coal char, two metallurgical cokes, and one recycling dust, were investigated by a thermogravimetric analyzer, in which the recycling dust came mainly from two metallurgical cokes and accounted for a mass fraction of 71.3%. The physicochemical properties of the different samples were tested systematically. The results showed that the recycling dust had a gasification reactivity similar to the coal char, of which the value was higher than those of the two metallurgical cokes. The structure analysis ascertained that the main factor that affected the gasification reactivity was the carbonaceous structure. Moreover, to characterize the reactive behavior of the different samples, three nth-order typical gas−solid reaction models were employed in this study. It has been found that the random pore model was the best model. The activation energies of different chars were in the range of 181.1− 202.3 kJ/mol.

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Kinetics and Reduction Behavior of Self-reducing Briquettes Containing Blast Furnace Dust

Chang

Zhang

et al. 2017

The Minerals, Metals &Amp; Materials Series

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Characterization of Sintering Dust, Blast Furnace Dust and Carbon Steel Electric Arc Furnace Dust

Cited by 4 publications

References 10 publications

Performance of an SCR Catalyst from Sintering Dust by the Hydrothermal Method and Its Water/Sulfur Resistance

Performance of an SCR Catalyst from Sintering Dust by the Hydrothermal Method and Its Water/Sulfur Resistance

Study on CO₂ Gasification Reactivity and Structure Characteristics of Carbonaceous Materials from the Corex Furnace

Kinetics and Reduction Behavior of Self-reducing Briquettes Containing Blast Furnace Dust

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Characterization of Sintering Dust, Blast Furnace Dust and Carbon Steel Electric Arc Furnace Dust

Cited by 4 publications

References 10 publications

Performance of an SCR Catalyst from Sintering Dust by the Hydrothermal Method and Its Water/Sulfur Resistance

Performance of an SCR Catalyst from Sintering Dust by the Hydrothermal Method and Its Water/Sulfur Resistance

Study on CO2 Gasification Reactivity and Structure Characteristics of Carbonaceous Materials from the Corex Furnace

Kinetics and Reduction Behavior of Self-reducing Briquettes Containing Blast Furnace Dust

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Study on CO₂ Gasification Reactivity and Structure Characteristics of Carbonaceous Materials from the Corex Furnace