Numerical investigation of the influence of particle shape, pretreatment temperature, and coal blending on biochar combustion in a blast furnace

Fuel ◽  
2022 ◽  
Vol 313 ◽  
pp. 123016
Author(s):  
Qi Wang ◽  
Enlu Wang
Keyword(s):  
Blast Furnace ◽  
Numerical Investigation ◽  
Particle Shape ◽  
Coal Blending ◽  
Pretreatment Temperature

scholarly journals Numerical Investigation of Blast Furnace Operation with Scrap Charging

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1666
Author(s):  
Zhu Liu ◽  
Zi Yu ◽  
Xuefeng She ◽  
Huiqing Tang ◽  
Qingguo Xue
Keyword(s):  
Blast Furnace ◽  
Numerical Investigation ◽  
Basic Oxygen Furnace ◽  
Furnace Operation ◽  
Partial Replacement ◽  
Base Case ◽  
Gas Temperature ◽  
Negative Effects ◽  
Basic Oxygen ◽  
Gas Utilization

One approach to reduce CO2 emission in the steelmaking industry is to recycle scrap to the blast furnace/basic oxygen furnace (BF/BOF) production system. This paper performed a numerical investigation on the BF operation with scrap charging. The investigated BF was with an inner volume of 820 m3, producing 2950 tons of hot metal per day (tHM/d). The simulated results indicated the following: Extra scrap addition in BF causes the decrease of shaft temperature, the decrease of local gas utilization, and the lowering of cohesive zone position, leading to an unstable BF running. The partial replacement of sinter with scrap in BF can mitigate the negative effects induced by scrap charging. The optimal scrap rate in the BF is 178 kg/tHM, under which the BF reaches a productivity of 3310 tHM/d, a top-gas utilization of 48.5%, and a top-gas temperature of 445 K. Compared to the base case, in the BF operation with scrap charging, the BF productivity is increased by 360 kg/tHM, its pulverized-coal rate and coke rate are decreased by 16.3 kg/tHM and 39.8 kg/tHM, respectively.

scholarly journals Numerical Investigation on Hot Metal Flow in Blast Furnace Hearth through CFD

2008 ◽  
Vol 48 (9) ◽  
pp. 1182-1187 ◽  
Author(s):  
Chen-En Huang ◽  
Shan-Wen Du ◽  
Wen-Tung Cheng
Keyword(s):  
Blast Furnace ◽  
Numerical Investigation ◽  
Metal Flow ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth

Numerical Investigation of Novel Oxygen Blast Furnace Ironmaking Processes

2018 ◽  
Vol 49 (4) ◽  
pp. 1995-2010 ◽  
Author(s):  
Zhaoyang Li ◽  
Shibo Kuang ◽  
Aibing Yu ◽  
Jianjun Gao ◽  
Yuanhong Qi ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Numerical Investigation ◽  
Oxygen Blast Furnace ◽  
Blast Furnace Ironmaking ◽  
Oxygen Blast

scholarly journals Numerical investigation of the limit of coke rate reduction in an ironmaking blast furnace (BF)

2021 ◽  
Vol 2030 (1) ◽  
pp. 012081
Author(s):  
Zhaoyang Li ◽  
Yixiong Feng ◽  
Aimin Wang ◽  
Lechen Zhang
Keyword(s):  
Blast Furnace ◽  
Numerical Investigation ◽  
Coke Rate ◽  
Rate Reduction
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