Publication Date:
2018-04-11
Description:
The effects of Fe 2 O 3 , CaO, and MnO 2 on the combustion characteristics and kinetics of coal-char blends were investigated using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results indicated that catalysts exhibited positive effects on the combustion characteristics of coal-char blends, especially in the initial period of coal-char blends combustion. With catalysts addition (mass 1.5%), it could improves volatile matter release, and reduces ignition point, promotes char to begin burning under lower temperature. The ignition index (C) was increased, respectively, by 27% for Fe 2 O 3 , 6% for CaO, 11.3% for MnO 2 , and the combustion characteristic index ( S ) was increased respectively, by 29% for Fe 2 O 3 , 5% for CaO, 8.3% for MnO 2 . In addition, two kinetic models (R 2 and F 1 ) were adopted to calculate the kinetic parame...
Print ISSN:
1755-1307
Electronic ISSN:
1755-1315
Topics:
Geography
,
Geosciences
,
Physics
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