高炉
焦炭
氢
化学
化学动力学
反应性(心理学)
冶金
材料科学
动力学
有机化学
量子力学
医学
物理
病理
替代医学
作者
Xiangyu Fan,Chao Li,Mingdeng Wang,Yang Liu,Yifei Feng,Yang Liu,Xiangyun Zhong,Guozhong Xu,Yaru Zhang,Yajie Zheng,Baojun Bai,Jinfeng Bai
标识
DOI:10.1002/ceat.202200325
摘要
Abstract The volume‐fraction changes of CO 2 and H 2 O after adding different proportions of H 2 to the hydrogen‐rich blast furnace were simulated by thermodynamic calculations to evaluate the effects of H 2 on coke gasification in a blast furnace. Thermodynamic calculations indicated that the H 2 O content in the mixed gas gradually increased with higher H 2 content. The coke gasification kinetics effective diffusion coefficient D e and interfacial reaction rate constant k + of the coke gasification reaction improved with higher H 2 content. In addition, the reactivity of cokes enhanced and the coke strength after reaction decreased with higher H 2 content. Mercury porosimeter experiments demonstrated that the coke gasification reaction mainly occurred on the surface.
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