【摘要】 为提高煤的燃烧效率,以分散剂、氧化剂、渗透剂等高分子材料及纳米材料作原料,通过高速剪切、分散、乳化制得4种不同型号的液态煤炭助燃剂,并使用热重分析仪研究其燃烧动力学,测定其助燃效果。试验结果表明:液态煤炭助燃剂对煤粉有较好的助燃效果,其中4号助燃剂的助燃效果最佳。热重试验结果表明,添加4号助燃剂的煤粉在温度升至600℃时,燃烧失重率比原煤粉增加了16.01%;DTG峰值温度降低35℃,着火点温度降低25℃;煤粉表观活化能降低43.74 kJ/mol,反应级数降低1.247 4。更多还原

【Abstract】 In order to improve the combustion efficiency,selecting dispersant,oxidant,penetrant and nano-materials to build four liquid coal combustion-supporting agents.The combustion-supporting agents were mixed by shear,dispersion and emulsification.The combustion kinetics was investigated on thermo-gravimetric analyzer(TGA).The results indicated that the combustion-supporting agents had a good effect on the process of coal combustion.The number four combustion-supporting agent had the best effect.The TGA experiment showed that the weight loss rate increased 16.01% when the temperature was 600 ℃ by adding number four combustion-supporting agent.The DTG peak temperature reduced 35 ℃ and the ignition temperature reduced 25 ℃.The dynamics calculation showed that the activation energy of the coal reduced 43.74 kJ/mol and the reaction order reduced 1.247 4.更多还原