Journal
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
Volume 42, Issue 1, Pages 1-11Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/19392699.2019.1566130
Keywords
Pyrolysis; TGA; low-rank coal; kinetics
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This study compares the pyrolysis characteristics of low-rank coal and bituminous coal using thermogravimetric analysis. The results show that the activation energy of low-rank coal is slightly lower than that of bituminous coal, which has implications for the utilization of low-rank coal.
This study aims to compare the pyrolysis characteristics of low-rank coal and bituminous coal with the elemental composition using thermogravimetric analysis (TGA) at the heating rates of 10, 20, 30, and 40 K/min in the temperature range 30-950 degrees C. Friedman's method was used to find out the kinetic parameters such as activation energy and pre-exponential factor. The average value of activation energy for bituminous coal was found to be between 46.24 and 420.00 kJ/mol and for low-rank coal it was 42.321 kJ/mol. These experimental results may be useful for the utilization of low-rank coal.
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