Influence of Reducing Gas Injection Methods on Pulverized Coal Combustion in a Medium Oxygen-Enriched Blast Furnace

JOM ◽  
2021 ◽  
Vol 73 (10) ◽  
pp. 2929-2937
Author(s):  
Xing Peng ◽  
Jingsong Wang ◽  
Cong Li ◽  
Haibin Zuo ◽  
Guang Wang ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Coal Combustion ◽  
Gas Injection ◽  
Pulverized Coal ◽  
Pulverized Coal Combustion ◽  
Reducing Gas ◽  
Injection Methods

scholarly journals Effect of CO2 injection into blast furnace tuyeres on the pulverized coal combustion

2021 ◽  
Vol 40 (1) ◽  
pp. 131-140
Author(s):  
Juanjuan Jiang ◽  
Rong Zhu ◽  
Shengtao Qiu
Keyword(s):  
Blast Furnace ◽  
Coal Combustion ◽  
Early Stage ◽  
Three Dimensional ◽  
Metallurgical Industry ◽  
Pulverized Coal ◽  
Co2 Injection ◽  
Endothermic Effect ◽  
Outlet Temperature ◽  
Pulverized Coal Combustion

Abstract CO2 injection into blast furnace tuyeres is a new technology to utilize CO2, aiming at expanding the way of CO2 self-absorption in the metallurgical industry. The decisive factor of whether CO2 can be mixed into a blast-furnace hot blast and the proper mixing ratio is the effect of CO2 injection on pulverized coal burnout. To investigate the effect of CO2 injection into tuyeres on pulverized coal burnout, a three-dimensional mathematical model of pulverized coal flow and combustion in the lower part of the pulverized coal injection lance-blowpipe-tuyere-raceway was established, and the effect of CO2 injection into tuyeres on pulverized coal combustion rate and outlet temperature is analyzed. The numerical simulation results show that the delay of pulverized coal combustion in the early stage is caused by the endothermic effect of the reaction of CO2 with carbon, and the burnout of pulverized coal is increased in the later stage due to the oxidation of CO2.

scholarly journals Three-dimensional simulation of the pulverized coal combustion inside blast furnace tuyere

2010 ◽  
Vol 34 (11) ◽  
pp. 3536-3546 ◽  
Author(s):  
Mingyan Gu ◽  
Guang Chen ◽  
Mingchuan Zhang ◽  
D. (Frank) Huang ◽  
Pinakin Chaubal ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Coal Combustion ◽  
Three Dimensional ◽  
Pulverized Coal ◽  
Pulverized Coal Combustion ◽  
Blast Furnace Tuyere ◽  
Dimensional Simulation

Pulverized Coal Combustion of Nitrogen Free Blast Furnace

2013 ◽  
Vol 20 (3) ◽  
pp. 1-5 ◽  
Author(s):  
Jian-liang Zhang ◽  
Guang-wei Wang ◽  
Jiu-gang Shao ◽  
Yong-xing Chen ◽  
Tian-jun Yang
Keyword(s):  
Blast Furnace ◽  
Coal Combustion ◽  
Pulverized Coal ◽  
Pulverized Coal Combustion
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