焦粉改性降低烧结过程NOx排放的模拟  

Simulation of NO_x Reduction by Using Modified Coke Breeze During Sintering Process

作　　者：陈彦广[1,2] 王志[1] 郭占成[1,3] 

机构地区：[1]中国科学院过程工程研究所,北京100190 [2]中国科学院研究生院,北京100049 [3]北京科技大学循环与生态冶金教育部重点实验室,北京100083

出　　处：《钢铁研究学报》2009年第5期8-11,共4页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(50574085);中国科学院知识创新工程青年人才领域前沿资助项目(O82809)

摘　　要：以浸渍法制备CeO2和CaO改性焦粉作为烧结燃料降低NOx排放。分别采用焦炭燃烧模拟实验和烧结杯实验对CeO2和CaO降低NOx排放进行研究。结果表明,在2.0%CeO2和2.0%CaO改性焦炭燃烧中,NOx减少排放率分别为14.8%和7.7%。在烧结杯实验中,以2.0%CeO2和2.0%CaO改性焦粉作为烧结燃料,NOx减少排放率分别为18.8%和13.5%。The amount of NOx emission was decreased by using the CeO2 and CaO modified coke breeze as fuel during iron ore sintering. The reduction of NOx emission by using CeO2 and CaO was investigated both in coke combustion and in sintering pot tests. The results show that the NOx reduction ratios in coke combustion are 14.8% and 7.7% respectively when the loading amounts of CeO2 and CaO are all 2.0%. In sintering pot tests, when the coke breeze loaded with 2.0% CeO2 or 2.0% CaO was used as fuel, the NOx reduction ratios are 18. 8% and 13.5 % respectively. So the NOx emission in the sintering process can be effectively reduced by using modified coke.

关 键 词：NOx 焦粉改性 CEO2 

分 类 号：TQ534.9[化学工程—煤化学工程]