A Mathematical Model to Characterize RH Desulfurization Process

作     者：Hong-bo YANG Shu-feng YANG Jing-she LI Jiang-shan ZHANG 

作者机构：School of Metallurgical and Ecological EngineeringUniversity of Science and Technology Beijing 

出 版 物：《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)

年 卷 期：2014年第21卷第11期

页      面：995-1001页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：Item Sponsored by National Natural Science Foundation of China(51304016 51374021) 

主　　题：RH transient desulfurization mathematical model physical experiment trial test clesul{urization e{ficiency 

摘      要：A physical model based on similarity principles was built to simulate RH desulfurization process. In order to quantitatively analyze RH desulfurization process, a mathematical model was proposed. By analyzing experimental results with the mathematical model, an empirical formula whose determination coefficient was 0.98 was given to express the relationship between transient desulfurization efficiency and time. All the determination coefficients of four fitted curves based on four repeated experiments with different gas flow rates were more than 0.94, which was the exact evidence of the rationality of the empirical formula. Meanwhile, it was found that transient desulfurization ability increased firstly and then decreased with increasing gas flow rate and reached the maximum value when the gas flow rate was 1.8 m^3/h. A plenty of repeated trials showed the same rule, which validated the mathematical model and the conclusions obtained from physical experiments.