In order to grasp the combustion performance of Indonesia lignite and provide theoretical basis for power plants to co-fire lignite

the ignition and combustion characteristics of Indonesia lignite and Shanxi bituminous coal were analyzed by thermogravimetric analysis method.The ignition temperature

burnout temperature and the maximum weight loss rate temperature were determined by TG-DTG method.Moreover

the reaction kinetics of the pulverized coal was analyzed by the Coats-Redfern integration method

and the influence of coal type

heating rate and particle size on pulverized coal combustion characteristics and reaction kinetics were analyzed.The results show that

the ignition temperature

burnout temperature

maximum weight loss rate temperature and activation energy of Indonesia lignite were lower than that of the Shanxi bituminous coal

suggesting the combustion performance of Indonesia lignite is better.On account of thermal hysteresis effect

with the increasing heating rate

the ignition temperature

burnout temperature and maximum weight loss rate temperature of the above two coals increased

while the activation energy decreased

implying the coal would burn more strongly.As the particle size increased

the ignition temperature

burnout temperature and maximum weight loss rate temperature increased

which was not conducive to the coal's ignition and burnout.At last

the results also show the particle size had more obvious influence on Indonesia lignite than on Shanxi bituminous coal

suggesting the lignite combustion condition can be adjusted by controlling the coal fineness.