【摘 要】
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Thermo-gravimetric analysis(TGA)has been used to obtain information on the combustion efficiency of lignite,bituminous and anthracite.Effects of NaClO4 and ZnO on combustion efficiency were evaluated.
【机 构】
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Tianjin Cement Industry Design & Research Institute Co.,Ltd.,Tianjin,300400
论文部分内容阅读
Thermo-gravimetric analysis(TGA)has been used to obtain information on the combustion efficiency of lignite,bituminous and anthracite.Effects of NaClO4 and ZnO on combustion efficiency were evaluated.Ignition temperature,combustion rate and burnout index had been put forward to describe combustion reactivity.The results indicated that the anthracite,incorporating NaClO4 or ZnO had excellent combustion reactivity.It was interesting to note that the ignition temperature of coal samples were decreased by the catalyzed combustion with NaClO4 or ZnO.Especially,the ignition temperatures of anthracite were decreased by 8.922%and 9.271%,respectively.There were no obvious improvements on combustion rates for lignite with NaClO4 or ZnO.However,those of bituminous and anthracite were improved greatly.On the other hand,there was no obvious enhancement on the burnout index of the two catalysts on lignite and bituminous except anthracite,the burnout indexes of anthracite-NaClO4 and anthracite-ZnO were 2.674×10-4 and 4.213×10-4,respectively,which increased above 136.2%and 272.2%compared with that of anthracite-raw.
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