稀土尾矿/钢渣催化CO燃烧性能的研究  

Study on Catalytic CO Combustion Performance of Rare Earth Tailings/Steel Slag

作　　者：陈義元 张钊 戚瑞 龚志军[1,2,3] 武文斐 CHEN Yi-yuan;ZHANG Zhao;QI Rui;GONG Zhi-jun;WU Wen-fei(College of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou O14010,China;Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi-Metal Resources,Inner Mongolia University of Science and Technology,Baotou 014010,China;Key Laboratory of Eficient and Clean Combustion,Inner Mongolia Autonomous Region,Baotou 014010,China)

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]内蒙古自治区高效洁净燃烧重点实验室,内蒙古包头014010 [3]白云鄂博共伴生矿资源高效综合利用省部共建协同创新中心,内蒙古包头014010

出　　处：《稀土》2024年第4期64-70,共7页Chinese Rare Earths

基　　金：内蒙古自然科学基金项目(2019ZD13,2020MS05045)。

摘　　要：采用固定床与红外烟气分析仪对白云鄂博稀土尾矿和钢渣在不同温度段(600℃~1000℃)催化CO燃烧的性能进行了研究。研究结果表明:在稀土尾矿和钢渣作用下CO的转换率都得到提高,说明稀土尾矿和钢渣的添加强化了CO催化燃烧作用,从而提高了CO的燃烧效率,并且其催化性能也随温度升高而升高。与钢渣相比,稀土尾矿在600℃~900℃温度范围内表现出较好的催化性能,说明稀土元素Ce与Fe_(2)O_(3)间具有良好的协同作用;钢渣则在900℃~1000℃表现出比稀土尾矿更好的催化性能,在1000℃时能实现91.3%的CO转换率。The performance of the catalytic CO combustion of Bayan Obo rare earth tailings and steel slag at different temperature ranges(600℃~1000℃)was investigated by using a fixed bed and infrared flue gas analyzer,and the results showed that the conversion rate of CO was improved under the action of both rare earth tailings and steel slag,indicated that the addition of rare earth tailings and steel slag enhanced the catalytic CO combustion,thus improving the combustion efficiency of CO,and their catalytic performance both increased with increasing temperature.Compared with steel slag,rare-earth tailings showed better catalytic performance in the temperature range of 600℃~900℃,indicating good synergy between rare-earth element Ce and Fe_(2)O_(3);steel slag showed better catalytic performance than rare-earth tailings in the range of 900℃~1000℃,and it could achieve 91.3%CO conversion rate at 1000℃.

关 键 词：CO催化燃烧 转换率 稀土尾矿 钢渣 催化活性 

分 类 号：TD926.4[矿业工程—选矿] X701[环境科学与工程—环境工程]