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- Title
Influence of heating rate on mixed coal sample pyrolysis and dynamic analysis.
- Authors
WANG Ruijie; SONG Changzhong; JIN Zhenyi; LI Rong; LI Yuyin; DAN Hong
- Abstract
In order to save steam coal and reduce power cost, and to provide theoretical guidance for the boiler combustion, the pyrolysis test was carried out on lignite and coal gangue using thermogravimetric analysis and different thermal analysis. Get different situations of TG curves, DSC curves and conversion rates curve by changing the heating rate. The mass ratio of lignite to coal gangue is 2 : 3,the heating rate is 10 °C/min, 30 °C/min, 50 °C/min. The heat releasing areas of the coal sample are close when the heating rate is 10 °C/min, 50 °C/min, while the heat releasing area is small when the heating rate is 30 °C/min. The results show that, 30 °C/min is not suitable for heat releasing. The dynamic analysis show that, the activation energy, frequency factor, pyrolysis kinetics parameters change as the heating rate changes.
- Subjects
COAL sampling; DYNAMICAL systems; PYROLYSIS; COAL combustion; THERMOGRAVIMETRY; THERMAL analysis
- Publication
Clean Coal Technology, 2014, Vol 20, Issue 4, p73
- ISSN
1006-6772
- Publication type
Article
- DOI
10.13226/j.issn.1006-6772.2014.04.022