1-1-2　褐炭の熱分解特性および燃焼特性

抄録

Pyrolysis and combustion process of brown coal was investigated by the isothermal thermogravimetric technique at several different operating temperatures using the vertical and horizontal fixed bed reactor. Gas chromatography analysis was employed to characterize the composition of generated gas during the pyrolysis and combustion processes. The activation energy (EA) and pre-exponential factor (A) were determined using first-order reaction for both processes. The combustion results showed that the activation energy decreases with increasing oxygen concentration, and the burnout time could be achieved from the oxygen concentration and combustion temperature. The main generated gaseous for pyrolysis were H₂, CH₄, CO and CO₂.