热重法研究煤燃烧添加剂的催化效果  

Stydy on Catalytic Combustion Effect of Coal-burning Additive with Thermogravimetric Method

作　　者：熊礼国 杨少俊 王祖卫 朱百鸣 邹寒山 黎湘虹 

机构地区：[1]江西丰矿电厂,江西丰城331100 [2]环境保护研究所,江西南昌330029 [3]贵溪市环境保护局,江西贵溪335400

出　　处：《环境与开发》2000年第4期33-34,共2页Environment and Exploitation

摘　　要：采用热重分析法研究了江西丰城劣质煤燃烧特性和稀土助燃添加剂对该煤的催化燃烧作用效果 ,比较了劣质煤在加入稀土助燃添加剂前后燃烧峰值温度、燃烧反应活化能、反应级数的变化 .结果表明 ,在劣质煤中加入 5 %的稀土助燃添加剂后 ,能显著加快煤燃烧速率 ,降低燃烧反应活化能 ,从而产生助燃效果 ,进一步分析了稀土助燃添加剂的催化作用机理 .The combustibility of Fengcheng tipot coal and catalytic combustion effect of the rare earth(RE) coal burning additive on this coal doped were studied by TG and DTG with linearly increasing temperature at air atmosphere.For Fengcheng tipot coal and this coal doped with 5% the RE coal burning additive,α(-ΔW/ΔW end )are 51.3% and 57.59%.the activation energies were 1 075 kJ/mol and 485.0 kJ/mol,the reaction orders were 4.5 and 7.7,respectively.Experimental results show that ER coal buning additive have high catalytic efficiency on this tipot coal combustion.

关 键 词：热重分析法 劣质煤 燃煤添加剂 催化燃烧 

分 类 号：TQ536.9[化学工程—煤化学工程] TQ534