Consequence of natural gas injection in blast furnace: a critical appraisal using a thermodynamic and evolutionary computation approach

2021 ◽  
pp. 1-13
Author(s):  
Bashista Kumar Mahanta ◽  
Sidhartha Sarkar ◽  
Prodip Kumar Sen ◽  
Nirupam Chakraborti
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Evolutionary Computation ◽  
Critical Appraisal ◽  
Gas Injection

Investigation of High-Rate and Pre-Heated Natural Gas Injection in the Blast Furnace

2019 ◽  
Author(s):  
J. D'Alessio ◽  
M. Klaas ◽  
S. Nielson ◽  
T. Okosun ◽  
S. Street ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Gas Injection ◽  
High Rate

scholarly journals Analysis of synthetic natural gas injection into charcoal blast furnace

2013 ◽  
Vol 2 (3) ◽  
pp. 255-262 ◽  
Author(s):  
Elisa Pinto da Rocha ◽  
Vagner Silva Guilherme ◽  
José Adilson de Castro ◽  
Yasushi Sazaki ◽  
Jun-ichiro Yagi
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Gas Injection ◽  
Synthetic Natural Gas

scholarly journals Effect of Natural Gas Injection Point on Combustion and Gasification Efficiency of Pulverized Coal under Blast Furnace Condition

2018 ◽  
Vol 104 (5) ◽  
pp. 243-252 ◽  
Author(s):  
Akinori Murao ◽  
Kiyoshi Fukada ◽  
Hidetoshi Matsuno ◽  
Michitaka Sato ◽  
Shota Akaotsu ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Gas Injection ◽  
Pulverized Coal ◽  
Injection Point ◽  
Gasification Efficiency

scholarly journals Tuyere-Level Syngas Injection in the Blast Furnace: A Computational Fluid Dynamics Investigation

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1447
Author(s):  
Samuel Nielson ◽  
Tyamo Okosun ◽  
Bradley Damstedt ◽  
Megha Jampani ◽  
Chenn Q. Zhou
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Blast Furnace ◽  
Natural Gas ◽  
Gas Injection ◽  
Injection Rate ◽  
Furnace Operation ◽  
Reduce Coke Consumption ◽  
Cfd Models ◽  
Injection Rates

With the recent push towards high injection rate blast furnace operation for economic and environmental reasons, it has become desirable in North America to better understand the impacts of alternate injected gas fuels in comparison to the well-documented limitations of natural gas. The quenching effects of gas injection on the furnace present a functional limit on the maximum stable injection rate which can be utilized. With this in mind, researchers at Purdue University Northwest’s Center for Innovation through Visualization and Simulation utilized previously developed computational fluid dynamics (CFD) models of the blast furnace to explore the impacts of replacing natural gas with syngas in a blast furnace with a single auxiliary fuel supply. Simulations predicted that the syngas injection can indeed reduce coke consumption in the blast furnace at similar injection rates to natural gas while maintaining stable raceway flame and reducing gas temperatures. The coke rates predicted by modeling using similar injection rates indicated an improvement of 8 to 15 kg/thm compared to baseline conditions when using the syngas of various feedstocks. Additionally, syngas injection scenarios typically produced higher raceway flame temperatures than comparable natural gas injection cases, indicating potential headroom for reducing oxygen enrichment in the hot blast or providing an even higher total injection rate.

Mathematical Modeling and Exergy Analysis of Blast Furnace Operation With Natural Gas Injection

2012 ◽  
Vol 84 (4) ◽  
pp. 333-343 ◽  
Author(s):  
Tong-Lai Guo ◽  
Man-Sheng Chu ◽  
Zheng-Gen Liu ◽  
Jue Tang ◽  
Jun-Ichiro Yagi
Keyword(s):  
Mathematical Modeling ◽  
Blast Furnace ◽  
Natural Gas ◽  
Exergy Analysis ◽  
Gas Injection ◽  
Furnace Operation ◽  
Blast Furnace Operation

scholarly journals Effect of Natural Gas Injection into Blast Furnace on Combustion Efficiency of Pulverized Coal

2015 ◽  
Vol 101 (12) ◽  
pp. 653-660 ◽  
Author(s):  
Akinori Murao ◽  
Yusuke Kashihara ◽  
Koichi Takahashi ◽  
Nobuyuki Oyama ◽  
Hidetoshi Matsuno ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Gas Injection ◽  
Combustion Efficiency ◽  
Pulverized Coal

Investigation of High-Rate and Preheated Natural Gas Injection in the Blast Furnace

2020 ◽  
Author(s):  
C. Zhou ◽  
J. D’Alessio ◽  
M. Klaas ◽  
S. Ray ◽  
T. Okosun ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Gas Injection ◽  
High Rate
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