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典型文献
Influence of coke rate on thermal treatment of waste selective catalytic reduction(SCR)catalyst during iron ore sintering
文献摘要:
Waste selective catalytic reduction(SCR)catalyst as a hazardous waste has a significant impact on the environment and human health.In present study,a novel technology for thermal treatment of waste SCR catalyst was proposed by adding it to sinter mix for iron ore sintering.The influences of coke rate on the flame front propagation,sinter microstructure,and sinter quality during sintering co-processing the waste SCR catalyst process were studied.In situ tests results indicated the maximum sintering bed temperature increased at higher coke rate,indicating more liquid phase generated and higher airflow resistance.The sintering time was longer and the calculated flame front speed dropped at higher coke rate.Sinter microstructure results found the coalescence and reshaping of bubbles were more fully with increasing coke rate.The porosity dropped from 35.28%to 25.66%,the pore average diameter of large pores decreased from 383.76 pm to 311.43 pm.With increasing coke rate,the sinter indexes of tumbler index,productivity,and yield,increased from 33.2%,9.2 t·m-2·d-1,28.9%to 58.0%,36.0 t·m-2·d-1,68.9%,respectively.Finally,a comprehensive index was introduced to systematically assess the influence of coke rate on sinter quality,which rose from 100 to 200 when coke rate was increased from 3.5%(mass)to 5.5%(mass).
文献关键词:
作者姓名:
Pengnan Ma;Jiankang Wang;Hanxiao Meng;Laiquan Lv;Hao Fang;Kefa Cen;Hao Zhou
作者机构:
State Key Laboratory of Clean Energy Utilization,Institute for Thermal Power Engineering Zhejiang University,Hangzhou 310027,China
引用格式:
[1]Pengnan Ma;Jiankang Wang;Hanxiao Meng;Laiquan Lv;Hao Fang;Kefa Cen;Hao Zhou-.Influence of coke rate on thermal treatment of waste selective catalytic reduction(SCR)catalyst during iron ore sintering)[J].中国化学工程学报(英文版),2022(02):415-423
A类:
Sinter,tumbler
B类:
Influence,coke,thermal,treatment,waste,selective,catalytic,reduction,SCR,catalyst,during,sintering,Waste,hazardous,significant,impact,environment,human,health,present,study,novel,technology,proposed,by,adding,mix,influences,flame,front,propagation,microstructure,quality,processing,were,studied,situ,tests,results,indicated,maximum,bed,temperature,increased,higher,indicating,more,liquid,phase,generated,airflow,resistance,longer,calculated,speed,dropped,found,coalescence,reshaping,bubbles,fully,increasing,porosity,from,average,diameter,large,pores,decreased,pm,With,indexes,productivity,yield,respectively,Finally,comprehensive,introduced,systematically,assess,which,rose,when,mass
AB值:
0.44321
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