Knowledge Management System Of Institute of process engineering,CAS
| Swelling behavior of iron ore pellet reduced by H-2-CO mixtures | |
| Alternative Title | Powder Technol. |
| Yi, L. Y.; Huang, Z. C.; Jiang, T.; Wang, L. N.; Qi, T. | |
| 2015 | |
| Source Publication | Powder Technology
 |
| Pages | 290-295 |
| Abstract | 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. |
| Keyword | 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 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000347507100034 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/11878 |
| Collection | 研究所（批量导入） |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Swelling behavior of（1342KB） | 限制开放 | CC BY-NC-ND | Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment