论文部分内容阅读
在1348～1573K温度范围内,在弱氧化性气氛下还原尘泥含碳球团,通过动力学实验和还原机理分析,得出影响尘泥含碳球团还原速度的限制性环节为界面反应或局部反应,反应活化能为111.66kJ/mol,还原速度可由Mckewan方程1-(1-R)1/3=kt表达.随温度升高,反应速率增大,金属化率和脱锌率提高,金属化率和脱锌率1573K时最高,分别为79.92%和97.83%,1348K时最低,仅为60.17%和75.25%.
In 1348 ~ 1573K temperature range, in a weak oxidizing atmosphere to restore the dust-containing carbon pellets, through kinetic experiments and reduction mechanism analysis, come to the conclusion that the limiting part of the speed of reduction of dust-containing carbon pellets is the interface reaction or The reaction rate is 111.66kJ / mol and the reduction rate can be expressed by Mckewan equation1 (1-R) 1/3 = kt.The reaction rate increases with the increase of temperature, the metallization rate and dezincification rate increase, Metallization rate and dezincification rate were the highest at 1573K, 79.92% and 97.83% respectively, the lowest at 1348K, only 60.17% and 75.25% respectively.