Characterization of Coal-Iron Filings Pellets Combustion Parameters Using Thermogravimetric Analysis Techniques
Authors: Madagwu, L.O., Ekpu, M., Ajieh, M.U., Sinebe, J., Ikpeseni, S.C. And Sada, S.O.
DOI Info: http://doi.org/10.5281/zenodo.21046286
ABSTRACT
The combustion of pure coal requires improvement of its temperature profile characteristics to enable thermal stability and sustainability through coal blending. The thermal degradation and temperature profile characteristics from combustion of coal-iron filings pellets have been evaluated using thermogravimetric analysis (TGA) and compared to 100% coal. This study explores the potential of enhancing coal combustion parameters by blending coal with iron filings to improve thermal performance. Thermogravimetric analyses were conducted on two samples of 1005 coal pellets and coal-iron filings pellet prepared using hand-mixed process in ratios of 60%Coal:40%Iron filings using waste paper as binder to ensure high mechanical strength. Thermogravimetric analysis results of 100%coal and coal-iron filings pellets revealed temperature profile characteristics such as onset temperature, ignition temperature, mid-temperature, burnout temperature, mass loss and residual mass ranging from 125 oC to 245 oC, 300 oC to 350 oC, 400 oC to 610 oC, 700 oC to 750 oC, 89% to 81% and 11% to 19% respectively demonstrating the viability of coal blending with iron filings for improved combustion characteristics. These results suggest that coal-iron filings blend can significantly improve thermal stability and sustainability useful for energy source, aligning with Sustainable Development Goal 7.
Affiliations: Department of Mechanical Engineering, Delta State University Abraka, Oleh Campus, Nigeria
Keywords: Coal, Combustion, Thermal Degradation, Blending, Thermal Stability
Published date: 2026/06/30
