About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
Evaluation of combustion characteristics of municipal sewage sludge for iron ore sintering |
| Author(s) |
Lin Xiong, Zhiwei Peng, Shaochang Nie |
| On-Site Speaker (Planned) |
Lin Xiong |
| Abstract Scope |
Municipal sewage sludge is a complex organic waste requiring proper proposal. Its maximum weight loss rate was found to be 7.1%/min, approximately twice that of coke breeze commonly used in iron ore sintering. Although the sludge provided less heat during combustion, its thermal utilization efficiency could be enhanced by modulating the combustion reaction rate. With increasing heating rate from 20°C/min to 50°C/min, the ignition temperature increased from 192°C to 205°C and the combustion ignition point temperature rose from 210°C to 249°C. Both the combustion characteristic index and flammability index of the sludge exhibited significant improvement because rapid heating rates hindered the immediate release of volatile components in the sludge, thereby delaying the combustion process that would favor the utilization of the sludge for iron ore sintering. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Environmental Effects, Recycling and Secondary Recovery |