TG-MS analysis of co-combustion of coal sludge and corncobs

To investigate the co-combustion characteristics of coal sludge and corncobs,the combustion behavior,such as ignition temperature and burnout temperature of coal sludge,corncobs and their blend were studied; and emission characteristics of CO_2,SO_2 and NO_2 were analyzed by simultaneous TG-MS technique.The results show that with a heating rate of 10 ℃/min the ignition and burnout temperature of the mixture of coal sludge and corncobs can be lowered by 204.62 ℃ and 26.52 ℃,respectively.With the increase of heating rate,the burnout temperature and the maximum weight loss of mixtures can be enhanced,but the ignition temperature appears to be approximately stable in different stages.The emission curves of CO_2 and NO_2 along combustion is resembled with the DTG curves.SO_2 emission from the co-combustion of coal sludge and corncobs is lower than those from coal sludge combustion.