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原煤和黑液水煤浆燃烧特性的热分析对比研究
Thermal analysis on combustibility of coal and coal black liquor slurry
【摘要】 在热天平上进行黑液水煤浆和原煤的燃烧、热解实验,得到不同升温速率下的燃烧、热解特性曲线和碳转化率特征曲线。试验结果表明,黑液水煤浆中的钠及其化合物在燃烧过程中催化作用明显,并且黑液中有机物成分对燃烧起到一定促进作用。在 20℃ /min升温速率下黑液水煤浆和原煤的燃烧活化能分别为 12. 98kJ/mol和106. 59 kJ/mol,反映出黑液水煤浆比原煤有更好的着火特性。
【Abstract】 Pyrolysis and combustibility of coal and coal black liquor slurry were studied on the thermobalance. The characteristics of pyrolysis, combustion and carbon conversion are all obtained under different heating rates . It is shown that the combustion of coal black liquor slurry is catalyzed by sodium and its compound ,and also the organic matter composition plays a certain role in the burning of coal black liquor slurry. The activation energy of coal and coal black liquor slurry combustion at the heating rate of 20 ℃/min are 12.98kJ/mol and 106.59 kJ/mol, respectively ,which indicates that the combustion characteristic of coal black liquor slurry is better than that of coal.
- 【文献出处】 燃料化学学报 ,Journal of Fuel Chemistry and Technology , 编辑部邮箱 ,2005年01期
- 【分类号】TQ534
- 【被引频次】35
- 【下载频次】329