초록

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Abstract ▼ AI-Helper

Combustion characteristics of domestic anthracite coal were observed by high-pressure thermogravimetric analyzer with variation of pressure (1~16 atm) and heating rate (15, 20, $25^{\circ}C$/min) with non-iso-thermal method (temperature range : 25~100$0^{\circ}C$). Measured com...

Combustion characteristics of domestic anthracite coal were observed by high-pressure thermogravimetric analyzer with variation of pressure (1~16 atm) and heating rate (15, 20, $25^{\circ}C$/min) with non-iso-thermal method (temperature range : 25~100$0^{\circ}C$). Measured combustion reaction rate increased with increasing pressure. This result could be explained by the fact that the activation energy of coal combustion decreased with increasing pressure. Reaction order of coal combustion determined by Freeman and Carroll$^{[11]}$ method linearly increased from 1.04 to 1.30 and activation energy decreased from 47.37 to 14.42 Kcal/mol as pressure increased from 1 to 16 attn.