氧化钙对焦炭性能的影响  

Effect of CaO on Properties of Coke

作　　者：左海滨[1] 戎妍[1] 张建良[1] 吴小兵 高冰[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]中信重工机械股份有限公司,河南洛阳471039

出　　处：《钢铁》2014年第1期7-12,共6页Iron and Steel

基　　金：国家自然科学基金委员会与宝钢集团有限公司联合资助项目(51134008)

摘　　要：碱土金属对焦炭气化反应具有正催化作用,而焦炭的气化特性影响高炉的能量利用状况。通过实验室条件下配煤炼焦试验,系统研究了添加氧化钙质量分数分别为0%,1%,2%,4%,8%,12%时对焦炭强度、气化起始反应温度、平均反应速率及表观活化能的影响。研究结果表明:当配加氧化钙质量分数为4%时,焦炭强度降低最大为7%,气化起始反应温度降低最多为80℃,平均气化反应速率增加最大,表观活化能降低最大约30%。The alkali metal has a positive catalytic effect on coke gasification reaction. And coke gasification characteristics affect the energy utilization of blast furnace. The effect of CaO, which was added to coal before carbonization under laboratory conditions, on the strength, gasification temperature, average reaction rate of coke and its activation energy was researched. According to the quantificational research results shown when add 4% CaO component into coke, which strength decrease as much as 7%, gasification temperature decrease 80℃ at most, average gasification rate increase maximum and activation energy 30% smallest than that of coke with no addition.

关 键 词：焦炭 性质 催化剂 反应性 活化能 

分 类 号：TF526.1[冶金工程—钢铁冶金]