Fe_(2)O_(3)负载MgO反应活性及表面形貌研究  

Study on Reactivity and Surface Morphology of Fe_(2)O_(3) Supported MgO

作　　者：孟庆龙 MENG Qinglong(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology Key laboratory(MOST)of Clean Utilization in Complex Non-ferrous Metal Resources,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学冶金与能源工程学院,昆明理工大学复杂有色金属资源清洁利用国家重点实验室,云南昆明650093

出　　处：《工业加热》2022年第2期59-63,共5页Industrial Heating

基　　金：国家重点研发计划项目(2018YFB0605402-02);国家自然科学基金项目(51866003)。

摘　　要：铁镁载氧体实验中,随着MgO的添加,铁基载氧体中铁镁氧化物逐渐增多。Fe_(2)O_(3)负载MgO后,CO-TPR出峰时间变短,说明MgO能够提高Fe_(2)O_(3)与CO的反应活性。Fe_(8)Mg_(2)载氧体相对于实验中其他铁镁载氧体,TPR峰总面积最大,Fe_(8)Mg_(2)载氧体还原能力最强,还原效果最好。通过对铁镁载氧体形貌图对比研究,发现MgO的添加能够减轻铁基载氧体的团聚和烧结。In the experiment of Fe-Mg oxygen carrier, with the addition of MgO, the iron magnesium oxide of iron based oxygen carrier increases gradually.After MgO loading on Fe_(2)O_(3), the peak time of CO-TPR becomes shorter, which indicates that MgO can improve the reactivity of Fe_(2)O_(3)with CO.Compared with other iron and magnesium oxygen carriers in the experiment, the total area of TPR peak of Fe_(8)Mg_(2)oxygen carrier is the largest, the reduction ability of Fe_(8)Mg_(2)oxygen carrier is the strongest, and the reduction effect is the best. It is found that the addition of MgO can reduce the agglomeration and sintering of iron-based oxygen carriers.

关 键 词：化学链燃烧 氧载体 密度泛涵理论 反应活性 

分 类 号：TK480.10[动力工程及工程热物理—动力机械及工程]