Fe2O3是一种适合高炉生产的煤粉助燃剂,采用热重-差热分析其助燃机理,表明FeCO-R削弱了碳结构单元间的桥键结合力以及晶格结构改变,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检测方法研究表明:随着助燃剂Fe2O3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0.001 1nm,层片直径增大0.001 2 nm;Fe2O3使未燃煤粉颗粒的平均粒径减小3.48 μm,外观形貌变得不规则.
参考文献
| [1] | J.K.Chung .Tuyere Level Coke Characteristics in Blast Furnace with Pulverized Coal Injection[J].ISIJ International,1997(2):119-125. |
| [2] | 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. |
| [3] | I. Sengupta;A. Kumar .Blast furnace efficiency enhancer for pulverized coal injection[J].AISE Steel Technology,2000(2):61-62. |
| [4] | 公旭中,郭占成,王志.Fe2O3催化无烟煤燃烧燃点降低机理的实验研究[J].化工学报,2009(07):1707-1713. |
| [5] | 沈颐身;杨天钧;范光前 等.氧煤燃烧器的研究与开发[J].钢铁,1991,26(01):11-15. |
| [6] | L. Lu;V. Sahajwalla;C. Kong;D. Harris .Quantitative X-ray diffraction analysis and its application to various coals[J].Carbon: An International Journal Sponsored by the American Carbon Society,2001(12):1821-1833. |
| [7] | Van Heek K H;Hodek W .Structure and pyrolysis behavior of different coals and relevant model substances[J].Fuel,1994,73(06):886-896. |
| [8] | 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. |
| [9] | Thoms P E;Phillip FB;Buchanan A C .Does decarboxylation lead to cross-linking in low-rank coals[J].Energy and Fuels,1996,10(06):1257-1261. |
| [10] | Nomura S.;Thomas KM. .Fundamental aspects of coal structural changes in the thermoplastic phase[J].Fuel,1998(8):829-836. |
| [11] | 公旭中,郭占成,王志.热重法研究K2CO3与Fe2O3对煤粉燃烧反应性的影响[J].燃料化学学报,2009(01):42-48. |
| [12] | Takanohashi T;TeraoY;Iino M .Irreversible structural changes in coals during heating[J].Energy and Fuels,1999,13:506-512. |
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