CAJ | 학술논문

在井式硅钼棒电炉中对焦炭溶损反应性进行研究，考察了反应条件（CO2流量、反应时间）并重点研究负载氧化铁对焦炭溶损反应性的影响；通过扫描电子显微镜（SEM）和电子能谱（EDS）对反应前后负载氧化铁的焦炭进行分析，探究氧化铁负载方式对焦炭溶损反应影响差异的原因，并进一步分析比较其影响机理。结果表明：焦炭溶损反应性随 CO2流量和反应时间的增加而增大；以吸附法和添加法负载氧化铁对焦炭溶损反应均有促进作用，氧化铁吸附负载量存在一个饱和点（1%），超过该点后氧化铁吸附负载量对焦炭溶损反应性影响甚微；吸附法负载氧化铁对焦炭溶损反应性的影响大于添加法。SEM 分析表明：添加法的部分铁氧化物被焦炭气孔壁基质包裹而无法发挥作用，吸附法的氧化铁均匀分布在焦炭表面使其能提供更多有效催化活性中心；且添加氧化铁时铁氧化物参与成焦，影响焦炭结构从而对焦炭溶损反应产生影响，吸附氧化铁则是影响焦炭溶损反应的催化作用，两种负载方式下氧化铁的影响机理不同。
재정식규목봉전로중대초탄용손반응성진행연구，고찰료반응조건（CO2류량、반응시간）병중점연구부재양화철대초탄용손반응성적영향；통과소묘전자현미경（SEM）화전자능보（EDS）대반응전후부재양화철적초탄진행분석，탐구양화철부재방식대초탄용손반응영향차이적원인，병진일보분석비교기영향궤리。결과표명：초탄용손반응성수 CO2류량화반응시간적증가이증대；이흡부법화첨가법부재양화철대초탄용손반응균유촉진작용，양화철흡부부재량존재일개포화점（1%），초과해점후양화철흡부부재량대초탄용손반응성영향심미；흡부법부재양화철대초탄용손반응성적영향대우첨가법。SEM 분석표명：첨가법적부분철양화물피초탄기공벽기질포과이무법발휘작용，흡부법적양화철균균분포재초탄표면사기능제공경다유효최화활성중심；차첨가양화철시철양화물삼여성초，영향초탄결구종이대초탄용손반응산생영향，흡부양화철칙시영향초탄용손반응적최화작용，량충부재방식하양화철적영향궤리불동。
Coke solution loss reactivity was investigated in the well type Si-Mo electric furnace. The influence of reaction conditions,such as carbon dioxide flow rate and reaction time on coke solution loss reactivity were studied,and the effect of loading iron oxide was discussed. The cokes loaded with iron oxide were analyzed by SEM and EDS before and after reaction to explore the reason for how iron oxide loading way affected coke solution loss reaction,and different mechanisms were discussed. Coke solution loss reactivity increased with increasing carbon dioxide flow rate and reaction time. Loading iron oxide by adsorption or addition had a positive effect on coke solution loss reactivity. There was an saturation point(1%)of iron oxide loading by adsorption. Loading iron oxide by adsorpton beyond this point could only slightly enhance its effect on the reactivity. Loading iron oxide by adsorption had a greater impact on coke solution loss reaction than by addition. SEM analysis indicated that part of iron oxide loaded by addition was enclosed by coke pore matrix and could not work,while iron oxide loaded by adsorption could be evenly distributed on coke surface to provide more effective catalytic active centers. Iron oxide loaded by addition participated in coke making,and affected coke structure and in turn affected its solution loss reaction. Iron oxide loaded by adsorption affected catalytic function of the reaction. The mechanisms of effect for these two loading ways were different.