Record number :
1508459
Title of article :
Moisture readsorption and low temperature oxidation characteristics of upgraded low rank coal
Author/Authors :
Choi، نويسنده , , Hokyung and Thiruppathiraja، نويسنده , , Chinnasamy and Kim، نويسنده , , Sangdo and Rhim، نويسنده , , Youngjoon and Lim، نويسنده , , Jeonghwan and Lee، نويسنده , , Sihyun Ham، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
6
From page :
2005
To page :
2010
Abstract :
This study investigated the behavior of upgraded low rank coal produced by a coal–oil slurry dewatering process regarding moisture readsorption, low temperature oxidation, and spontaneous combustion. The upgraded low rank coal had higher heating values than raw coal. It also showed lower moisture readsorption than raw coal and had less susceptibility to low temperature oxidation and spontaneous combustion. This seemed to result from the coating of the asphalt on the surface of the coal, which covered fine pores and suppressed the active functional groups from reacting with moisture and oxygen in the air. The increasing upgrading pressure negatively affected the moisture readsorption, low temperature oxidation, and spontaneous combustion.
Keywords :
Moisture readsorption , Low temperature oxidation , Low rank coal , Spontaneous combustion , Upgrading
Journal title :
Fuel Processing Technology
Journal title :
Fuel Processing Technology
Serial Year :
2011
Link To Document :
بازگشت