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典型文献
Kinetic triplet from low-temperature carburization and carbon deposition reactions
文献摘要:
Carbon deposition reaction is unfavorable for smooth operation of blast furnace,while the product of carburization reaction is a superior iron-bearing raw material in non-blast furnace routes.The kinetic triplet of these two reactions was obtained based on non-isothermal kinetic analysis.According to the Sharp-Wentworth method,the activation energy of the car-burization reaction is 397.77 kJ/mol,and the activation energies of the carbon depositions on hematite and magnetite are 188.92 and 100.89 kJ/mol,respectively.The carburization reaction is controlled by the Jander mechanism,and the carbon depositions on hematite and magnetite are both controlled by the mechanism of Zhuravlev-Lesokhin-Tempelman.Based on Coats-Redfern method,the activation energies of the above three reactions are 360.65,149.29,and 102.36 kJ/mol,respectively.The carburization reaction is a first-order reaction,while the carbon depositions on hematite and magnetite are both third-order reaction.In particular,the negative activation energy is obtained if considering the anti-Arrhenius cir-cumstance in the Sharp-Wentworth method.Based on above results,it is feasible to adopt non-isothermal kinetic method to study the kinetic triplet of a reaction.According to the obtained activation energies and reaction mechanism functions,the simulated kinetic data are in good agreement with the experimental values even using the negative activation energy.
文献关键词:
作者姓名:
Wei Zhang;Kui Li;Jian-hong Dong;Cheng-zhi Li;Ai-hua Liu;Ju-hua Zhang;Zheng-liang Xue
作者机构:
The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Hanshan Normal University,Chaozhou 521041,Guangdong,China;Key Laboratory of Ecological Utilization of Multi-Metallic Mineral of Education Ministry,Northeastern University,Shenyang 110819,Liaoning,China
引用格式:
[1]Wei Zhang;Kui Li;Jian-hong Dong;Cheng-zhi Li;Ai-hua Liu;Ju-hua Zhang;Zheng-liang Xue-.Kinetic triplet from low-temperature carburization and carbon deposition reactions)[J].钢铁研究学报(英文版),2022(10):1545-1558
A类:
carburization,Wentworth,burization,Zhuravlev,Lesokhin,Tempelman,cumstance
B类:
Kinetic,triplet,from,low,temperature,carbon,reactions,Carbon,unfavorable,smooth,operation,blast,furnace,while,product,superior,iron,bearing,raw,material,routes,kinetic,these,was,obtained,isothermal,analysis,According,Sharp,method,activation,energy,kJ,energies,depositions,hematite,magnetite,are,respectively,controlled,by,Jander,mechanism,both,Based,Coats,Redfern,above,three,first,order,third,In,particular,negative,if,considering,anti,Arrhenius,cir,results,feasible,adopt,study,functions,simulated,data,good,agreement,experimental,values,even,using
AB值:
0.371232
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