Determination of the intrinsic kinetics of iron oxide reduced by carbon monoxide in an isothermal differential micro-packed bed

Baolin Hou; Haiying Zhang; Hongzhong Li; Qingshan Zhu

doi:10.1016/j.cjche.2015.01.006

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Determination of the intrinsic kinetics of iron oxide reduced by carbon monoxide in an isothermal differential micro-packed bed

催化、动力学与反应工程 | Updated：2026-01-06

- Determination of the intrinsic kinetics of iron oxide reduced by carbon monoxide in an isothermal differential micro-packed bed
- Chinese Journal of Chemical Engineering Issue 6, Pages: 974-980(2015)
- Affiliations：
  
  State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.01.006
  CLC：
- Published：2015
- Accepted：
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Baolin Hou, Haiying Zhang, Hongzhong Li, et al. Determination of the intrinsic kinetics of iron oxide reduced by carbon monoxide in an isothermal differential micro-packed bed[J]. Chinese Journal of Chemical Engineering, 2015, (6): 974-980.
DOI：

Baolin Hou, Haiying Zhang, Hongzhong Li, et al. Determination of the intrinsic kinetics of iron oxide reduced by carbon monoxide in an isothermal differential micro-packed bed[J]. Chinese Journal of Chemical Engineering, 2015, (6): 974-980. DOI： 10.1016/j.cjche.2015.01.006.

摘要

The intrinsic kinetics of iron oxide reduced by carbon monoxide is evaluated by a method of online measuring concentration of off-gas in an isothermal differential micro-packed bed. Under the conditi

on of getting away from the influence of gas diffusion and gas–solid heat transfer and mass transfer

the reaction of Fe

to Fe

to FeO and FeO to Fe in the process of single reaction can be clearly distinguished from each other

and the relevant activation energy is characterized to be 75.4

74.4

and 84.0 kJ·mol

-1

respectively. Therefore

the change of surface area in the reaction process due to losing oxygen could be easily calculated by combining it with pre-exponential parameters of Arrhenius equations. In conclusion

these kinetic parameters are verified by the experimental data for the process of ore reduced by carbon monoxide in a packed bed.

Abstract

The intrinsic kinetics of iron oxide reduced by carbon monoxide is evaluated by a method of online measuring concentration of off-gas in an isothermal differential micro-packed bed. Under the condition of getting away from the influence of gas diffusion and gas-solid heat transfer and mass transfer

the reaction of Fe

to Fe

to FeO and FeO to Fe in the process of single reaction can be clearly distinguished from each other

and the relevant activation energy is characterized to be 75.4

74.4

and 84.0 kJ·mol

-1

respectively. Therefore

the change of surface area in the reaction process due to losing oxygen could be easily calculated by combining it with pre-exponential parameters of Arrhenius equations. In conclusion

these kinetic parameters are verified by the experimental data for the process of ore reduced by carbon monoxide in a packed bed.

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