KINETICS OF PELLET REDUCED BY H-2 AND THE MIXTURE OF CO AND H-2

被引：0

作者：

Geng, S. ^{[1
]}

Zhang, H. ^{[1
]}

Ding, W. ^{[1
]}

Yu, Y. ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai, Peoples R China

来源：

METALURGIJA | 2018年 / 57卷 / 04期

关键词：

iron; direct reduced; H-2-CO mixture thermo gravimetric analysis; X-ray examination;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Canadian hematite acid pellet with low magnetite and olivine contents were isothermally reduced by hydrogen and carbon monoxide at 600 to 1 000 degrees C. Pellet reduction was investigated by a thermo gravimetric analysis measuring oxygen weight loss as a function of time. Then macroscopic and microscopic examinations, X-ray and carbon analyses were also used to elucidate the mechanisms of pellet reduction. Activation energy is around 27 kJ/mol for H-2 atmospheres and is about 15 kJ/mol for the mixture of H-2 and CO. Carbon producing from CO disproportionation reaction performs a catalyzer at the final reduction of pellet.

引用

页码：219 / 222

页数：4

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