Name : [in Japanese]
Location : [in Japanese]
Date : August 01, 2017 - August 02, 2017
Pages 26-27
This work successfully measured heat generation rates accompanying the air oxidation at 50 to 150 °C for 3 kinds of low rank coals using a TG-DSC analyzer. The heat generation rates measured were well expressed by 3 parallel first order reactions which have the activation energies of several kJ/mol, 10 to 15 kJ/mol, and 55 kJ/mol for all of the coals. It was also found that 200 to 350 kJ/kg of heat is generated when the coals are exposed to air at 150 °C for 30 min. The heat is big enough to raise coal temperature by 150 to 260 °C under adiabatic conditions. The rate equations were well expected to be utilized for the prediction of actual temperature increase.
