LAPSE:2023.24709
Published Article
LAPSE:2023.24709
Combustion Enhancement of Pulverized Coal with Targeted Oxygen-Enrichment in an Ironmaking Blast Furnace
March 28, 2023
Abstract
In this study, a targeted oxygen-enrichment technology was proposed to enhance coal combustion in an ironmaking blast furnace. The coal flow and combustion characteristics under targeted oxygen-enrichment were investigated using the computational fluid dynamics (CFD) method. The results showed that oxygen utilization and coal burnout were significantly increased under targeted oxygen-enrichment. The coal burnout at 24% O2 concentration was 86.29%, which was the maximum and indicated an increase of 13.13%. However, the cooling effect of room-temperature oxygen had some adverse effects on coal combustion. Given this, the effect of coal particle temperature on coal combustion was investigated based on targeted oxygen-enrichment. The coal combustion process was further enhanced. The coal burnout at a 600 K particle temperature and 25% oxygen concentration was 91.12% and had an increase of 17.96%, which was the maximum.
In this study, a targeted oxygen-enrichment technology was proposed to enhance coal combustion in an ironmaking blast furnace. The coal flow and combustion characteristics under targeted oxygen-enrichment were investigated using the computational fluid dynamics (CFD) method. The results showed that oxygen utilization and coal burnout were significantly increased under targeted oxygen-enrichment. The coal burnout at 24% O2 concentration was 86.29%, which was the maximum and indicated an increase of 13.13%. However, the cooling effect of room-temperature oxygen had some adverse effects on coal combustion. Given this, the effect of coal particle temperature on coal combustion was investigated based on targeted oxygen-enrichment. The coal combustion process was further enhanced. The coal burnout at a 600 K particle temperature and 25% oxygen concentration was 91.12% and had an increase of 17.96%, which was the maximum.
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Keywords
coal burnout, coal particles temperature, ironmaking blast furnace, targeted oxygen-enrichment
Subject
Suggested Citation
Zhou Z, Wang R, Yi Q, Wang G, Ma C. Combustion Enhancement of Pulverized Coal with Targeted Oxygen-Enrichment in an Ironmaking Blast Furnace. (2023). LAPSE:2023.24709
Author Affiliations
Zhou Z: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Wang R: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Yi Q: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Wang G: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Ma C: National Engineering Laboratory of Coal-Fired Pollution Reduction, Shandong University, Jinan 250061, China
Wang R: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Yi Q: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Wang G: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Ma C: National Engineering Laboratory of Coal-Fired Pollution Reduction, Shandong University, Jinan 250061, China
Journal Name
Processes
Volume
9
Issue
3
First Page
440
Year
2021
Publication Date
2021-02-28
ISSN
2227-9717
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Original Submission
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PII: pr9030440, Publication Type: Journal Article
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LAPSE:2023.24709
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https://doi.org/10.3390/pr9030440
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Mar 28, 2023
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