Non-isothermal kinetic analysis of metallised burden with a metallisation ratio of 70% in a CO<sub>2</sub> atmosphere

Yan, Ruijun; Liu, Zhenggen; Chu, Mansheng; Liu, Peijun

doi:10.1080/00084433.2022.2049989

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…The coke powder particle size is less than 0.074 mm. Utilizing a Beijing HCT-4 comprehensive thermal analyzer (Beijing Henven Scientific Instrument Factory, Beijing) conducted the gasification experiment [27]. The 10 mg coke powder in a CO 2 atmosphere was heated to 1400°C at heating rate of 10°C/min.…”

Section: Experiments Methodsmentioning

confidence: 99%

Effect of coke reactivity on softening-melting and dripping behaviors of sinter

Yan

Liu

Chu

et al. 2023

Ironmaking & Steelmaking

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The use of high reactivity coke in blast furnaces is an important direction for low-carbon development. In this study, we investigated the effect of coke reactivity on the softening-melting behaviors of the sinter. The results show that the gasification temperature of coke decreased with increasing coke reactivity. With increasing coke reactivity from 24.75% to 45.11%, the initial melting temperature rose from 1294°C to 1312°C, the dripping temperature dropped from 1522°C to 1507°C and the melting region decreased from 228°C to 195°C, respectively. The cohesive zone shifted downward and the thickness narrowed. The permeability index and highest differential pressure dropped from 1219.67 KPa•°C to 607.61 KPa•°C and from 7.0962 KPa to 4.8523 KPa, respectively. Coke with high reactivity can improve the gas permeability of burden. The gas utilization ratio in the softening-melting and dripping processes of the sinter raised by about 2% with increasing coke reactivity.

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Section: Experiments Methodsmentioning

confidence: 99%

Effect of coke reactivity on softening-melting and dripping behaviors of sinter

Yan

Liu

Chu

et al. 2023

Ironmaking & Steelmaking

Self Cite

View full text Add to dashboard Cite

show abstract

“…And the iron-bearing burden put into furnace is 1.42 billion tons, including about 70% sinter, 15% acid pellet and 15% imported rich lump ore. New low-carbon iron-making technologies, such as carbon-iron composite burden, injection hydrogen-rich medium, top gas circulation and metallized burden, provide new possibilities for carbon emission reduction of BF. [1][2][3][4][5][6][7] High basicity sinter is the main component of iron-bearing burden put into furnace. According to the current China National Standard YB/T 421-2014, the reducibility index (RI) of high-quality…”

Section: Introductionmentioning

confidence: 99%