Swelling behavior of iron ore pellet reduced by H-2-CO mixtures
文献类型：期刊论文
| 作者 | Yi, L. Y. ; Huang, Z. C. ; Jiang, T. ; Wang, L. N. ; Qi, T. |
| 刊名 | Powder Technology
 |
| 出版日期 | 2015 |
| 页码 | 290-295 |
| 关键词 | Iron ore pellet Gaseous reduction H-2 and CO mixture Volume swelling Compressive strength Phase transformation Iron precipitation morphology HEMATITE PELLETS WHISKER FORMATION DIRECT REDUCTION OXIDE COMPACTS GAS MGO MICROSTRUCTURE HYDROGEN STICKING QUALITY |
| 其他题名 | Powder Technol. |
| 中文摘要 | Hydrogen and carbon monoxide mixtures are main reducing agents for gaseous direct reduction (DR) processes. In the present study, volume change of pellet reduced in H-2-CO mixtures at 800-1000 degrees C was examined with a novel consecutive imaging method. Results showed that pellet expansion intensified with temperature and CO content in atmosphere and it reached the maximum at reduction degree of 20%-40% due to the formation of massive wustite phase. Pellet in H-2 rich atmospheres passed the wustite stage rapidly and swelling consequently weakened. Iron whiskers that formed in the later reduction stage led to persistent swelling as pellet reduced by CO. However, pellets contracted obviously in H-2 containing atmospheres for the collection of iron phase in the later. Compressive strength of pellets during reduction dropped to be the lowest in 10-20 min. And the time for pellets remained in the "low strength zone" (<500 N/P) prolonged with temperature and CO proportion in reducing gas, which showed good correlation with their swelling behavior. (C) 2014 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000347507100034 |
| 公开日期 | 2015-04-01 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11878]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 推荐引用方式 GB/T 7714 | Yi, L. Y.,Huang, Z. C.,Jiang, T.,et al. Swelling behavior of iron ore pellet reduced by H-2-CO mixtures[J]. Powder Technology,2015:290-295. |
| APA | Yi, L. Y.,Huang, Z. C.,Jiang, T.,Wang, L. N.,&Qi, T..(2015).Swelling behavior of iron ore pellet reduced by H-2-CO mixtures.Powder Technology,290-295. |
| MLA | Yi, L. Y.,et al."Swelling behavior of iron ore pellet reduced by H-2-CO mixtures".Powder Technology (2015):290-295. |
入库方式： OAI收割
来源：过程工程研究所
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