Optimizing sintering air volume for enhanced lean gas recovery and environmental performance
This study examines the impact of sintering air volume on the characteristics of combustible lean gases (CO, H<sub>2</sub>, and CH<sub>4</sub>) in sintering flue gas. By conducting experiments using a fixed combustion test bench, we analyzed the changes in sintering negative pressure, flue gas composition, and sinter quality under various air volume conditions. The results demonstrate that an air volume of 90 m³/(m²·min) leads to a lower combustion ratio (ω(CO)/ω(CO + CO<sub>2</sub>)), indicating more efficient utilization of fuel chemical energy. Additionally, increasing the air volume per unit area reduces the sintering time. The mass fractions of CO and H<sub>2</sub> decrease with increasing air volume, and the mass fraction of CH<sub>4</sub> also decreases, underscoring the importance of its recovery due to its high global warming potential (28 times that of CO<sub>2</sub>). These findings provide guidance for optimizing sintering conditions to improve lean gas recovery and reduce environmental impacts.
Authors
- Meng Wen
- Weishu Wang (ORCID: https://orcid.org/0000-0003-2446-5761)
- Yiming Guo (ORCID: https://orcid.org/0000-0002-9425-0697)
- Gao Yan-yang
- Xinwei Guo (ORCID: https://orcid.org/0000-0002-3626-947X)
- Xiaojiang Wu (ORCID: https://orcid.org/0000-0002-8304-867X)
- Zhongxiao Zhang
- Xiao‐Lin Wu (ORCID: https://orcid.org/0000-0002-5604-9220)
- Jiaoyang Ji
Institutions
- Shanghai Jiao Tong University (CN)
- North China University of Water Resources and Electric Power (CN)
- Environmental Protection Engineering (Greece) (GR)
- Huazhong University of Science and Technology (CN)
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Journal
- Scientific Reports
- Published
- 2025-04-01
- DOI
- https://doi.org/10.1038/s41598-024-81492-x
- Primary Topic
- Carbon Dioxide Capture Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00