Combustion of Dianchi sludge

low grade lignite and their blends of different proportions were conducted

by thermogravimetric analyzer.The basic characteristics of fuels were discussed based on several combustion parameters

such as ignition temperature

burnout temperature and maximal combustion rate.Moreover

the activation energy of above reactions are obtained by kinetic calculation.Results show that

as the sludge fraction increasing

the ignition temperature of the mixture gradually decreases

but the flammability index and combustion characteristic index drops.The activation energy of sludge is lower than that of coal

so that of the blends decreases as the sludge mixing ratio increasing.For the whole combustion process

the ignition and burnout characteristic of the mixture is better than that of the single fuel

in some aspects.