铁矿粉含量对神府煤制备的含铁型焦气化反应起始温度的影响  

Influence of Iron Ore Powder Content on the Starting Temperature of Gasification Reaction of Carbon Iron Composite

作　　者：刘建国[1] 张龙龙[1] 原春阳[1] 王社斌[1,2] 

机构地区：[1]太原理工大学材料科学与工程学院,太原030024 [2]太原理工大学新材料界面科学与工程教育部重点实验室,太原030024

出　　处：《太原理工大学学报》2014年第6期731-737,共7页Journal of Taiyuan University of Technology

基　　金：国家重点实验室开放课题:铁矿粉含量对含铁型焦气化反应起始温度的影响的研究(KF13-06)

摘　　要：为提高高炉反应效率和拓展炼焦煤的范围,以非焦煤和铁矿粉为原料,经破碎、筛分、混合、热压成型和焦化后,制成5种不同铁矿粉含量的含铁型焦。通过X射线衍射、SEM和差热分析,研究不同铁矿粉含量对其气化反应起始温度的影响。结果表明,焦化后试样中出现Fe、FeO和SiO2等相;含铁型焦的气化反应起始温度从884.7℃降低到803.2℃,活化能从192.35kJ/mol降低到177.30kJ/mol;预计CO2的排放量可降低11.2%。为我国高炉炼铁减少CO2排放,扩大原燃料适应范围和提高市场竞争力提供基础实验数据。In order to improve the reaction efficiency of blast furnace and extend the scope ofcoking raw material,adding iron powder in non-coking coal to refine the high reactivity of coke isan effective way. In this study, non-coking coal and iron ore powder（IOP） were chosen as theraw materials. The carbon iron composite （CIC） samples with different content of IOP were pre-pared by crushing, sieving, mixing, pressing and coking. The effects of different content of IOPon the starting gasification temperature for the carbon iron composite were investigated by X-raydiffractometry, SEM and differential thermal analysis. The results show that. Fe,FeO and SiO2were found in the coked sample. Due to the catalytic effect of iron on CIC, the starting tempera-ture of the gasification reaction dropped from 884.7 ℃ to 803.2 ℃, and the activation energy from192.35 kJ/mol to 177.30 kJ/mol. CO2 emissions was expected to decrease by 11.2%

关 键 词：非焦煤 含铁型焦 气化反应 炼铁 

分 类 号：TF52[冶金工程—钢铁冶金]