KMnO4是一种适合高炉生产的煤粉助燃剂,通过热重-差热分析其助燃机制是Mn7+(CO-)7削弱了碳结构单元间的桥键结合力以及改变了晶格结构,使煤粉活化能降低,加速燃烧.通过模拟高炉风口的燃烧条件并收集未燃煤粉,采用XRD和SEM方法检测,可知随着助燃剂KMnO4的加入,未燃煤粉的微晶参数增大,芳香片层的堆砌高度升高0.0013 nm,层片直径增大0.0366nm;KMnO4使未燃煤粉颗粒的平均粒径减小2.62 μm.
参考文献
| [1] | 贺鑫杰,张建良,祁成林,孔德文,马超,卢伟佳.催化剂对煤粉燃烧特性的影响及动力学研究[J].钢铁,2012(07):74-79. |
| [2] | 张丙怀;朱子宗;邹德余.未燃煤粉对焦炭性能的影响[J].钢铁,1994(03):24. |
| [3] | Morimasa ICHIDA;Takashi ORIMOTO;Tsuyoshi TANAKA .Behavior of Pulverized Coal Ash and Physical Property of Dripping Slag under High Pulverized Coal Injection Operation[J].ISIJ International,2001(4):325-332. |
| [4] | Indronil S;Muthukuma K M .Blast Furnace Efficiency Enhancer for Pulverized Coal Injection[J].Iron and Steel Engineer,2000,77(04):61. |
| [5] | 张曦东,张建良,陈杉杉,吕卫.利用热重法研究混煤的燃烧率[J].冶金能源,2008(03):33-35. |
| [6] | 公旭中,郭占成,王志.参比DTA法研究煤粉催化燃烧特性[J].燃料化学学报,2009(03):282-288. |
| [7] | Manion J A;McMillen D F;Malhortra R .Decarboxylation a Coupling Reactions of Aromatic Acid Under Coal-Liquefaction Conditions[J].Energy and Fuels,2008,10(06):776. |
| [8] | LU L .Quantitative X-Ray Diffraction Analysis and Its Application to Various Coals[J].CARBON,2001,39:1821. |
| [9] | 肖健立,康华,王振阳.燃煤催化剂催化机理的探讨[J].煤炭技术,2002(11):73-75. |
| [10] | 徐万仁,杜鹤桂.煤粉热分解特性及添加助燃剂的影响[J].钢铁,1999(06):7-11. |
| [11] | Van Heek K H;Hodek W .Structure and Pyrolysis Behaviour of Different Coals and Relevant Model Substances[J].FUEL,1994,73(06):886. |
| [12] | Thomas P E;Phillip F B;Buchanan A C .Does Decarboxylation Lead to Cross-Linking in Low-Rank Coals[J].Energy and Fuels,1996,10(06):1257. |
| [13] | Nomura S.;Thomas KM. .Fundamental aspects of coal structural changes in the thermoplastic phase[J].Fuel,1998(8):829-836. |
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