焦炭溶损反应对焦炭性能有着重要的影响,是决定高炉焦比高低的关键.通过添加催化剂和吸附催化剂的方法向实验室自制焦炭上负载铁氧化物,并对含铁焦样进行了焦炭溶损反应实验、XRD检测、SEM扫描电镜及图像分析.研究结果表明,铁氧化物对焦炭溶损反应具有明显的催化作用,铁氧化物会使焦炭反应性指数升高,溶损反应开始温度降低,同时分析了焦炭中负载铁氧化物后气孔率的变化、金属铁及其氧化物的分布规律及赋存状态.
参考文献
| [1] | Larsson M;Dahl J .Reduction of the Specific Energy Use in an Integrated Steel Plant,The Effect of an Optimization Model[J].The Iron and Steel Institute of Japan International,2003,43(10):1664. |
| [2] | Molina A.;Mondragon F. .Reactivity of coal gasification with steam and CO2[J].Fuel,1998(15):1831-1839. |
| [3] | S.SUN .A Theoretical Investigation of Kinetics and Mechanisms of Iron Ore Reduction in an Ore/Coal Composite[J].ISIJ International,1999(2):123-129. |
| [4] | Seiji NOMURA;Masaaki NAITO;Kouichi YAMAGUCHI .Post-reaction Strength of Catalyst-added Highly Reactive Coke[J].ISIJ International,2007(6):831-839. |
| [5] | 张群 .抑制溶损反应改善焦炭热性质[D].南京工业大学,2003. |
| [6] | 刘竹林.炼铁原料[M].北京:化学工业出版社,2007 |
| [7] | Hilding T;Gupta S;Sahajwalla V .Degradation Behavior of a High CSR Coke in an ExperimentaI Blast Furnace,Effect of Carbon Structure and Alkali Reactions[J].The Iron and Steel Institute of Japan International,2005,45(07):1041. |
| [8] | Dhupe A P;Gokarn A N;Doraiswamy L K .Investigations Into the Compensation Effect at Catalytic Gasification of Active Charcoal by Carbon Dioxide[J].Fuel,1991,70:839. |
| [9] | Goscinski J S;Gray R J;Robinson J W .View of American Coal Quality and Its Effect on Coke Reactivity and Reaction Strength of Cokes[J].Journal of Coal Quality,1994,13(01):1. |
| [10] | Aderibigibe D A .Structural Changes and Reactivity of Conventional Coke and Form Coke During Reaction With CO-CO2Gas Mixtures at 1000℃[J].Ironmaking and Steelmaking,1982,9(03):130. |
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