Knowledge Management System Of Institute of process engineering,CAS
| Relationship between reaction and diffusion during ultrafineNiOreduction toward agglomeration fluidization | |
| Li, Jun1; Zhu, Qingshan1,2; Li, Hongzhong1 | |
| 2020-10-08 | |
| Source Publication | AICHE JOURNAL
 |
| ISSN | 0001-1541 |
| Pages | 11 |
| Abstract | The relationship between reaction and diffusion during ultrafine NiO reduction by H(2)in a fluidized bed reactor were investigated. The result illuminates that the reduction reaction proceeding in the unreduced NiO powders is according to the nucleation model. A modified force balance model between cohesive and collision forces incorporating grain-boundary diffusion and reaction is proposed to predict the agglomeration behavior of ultrafine Ni during the reduction of NiO in a fluidized bed. The modified force balance model shows more precise predictions than the model without consideration of grain-boundary diffusion. Based on the model, it is found that the core of the two-step reduction is to decouple grain growth from reduction for achieving full conversion while retaining nanosized grain sizes. |
| Keyword | agglomeration diffusion fluidization reaction kinetics ultrafine Ni powder |
| DOI | 10.1002/aic.17081 |
| Language | 英语 |
| WOS Keyword | NICKEL-OXIDE REDUCTION ; CHEMICAL-LOOPING COMBUSTION ; NIO REDUCTION ; SELF-AGGLOMERATION ; IRON NANOPARTICLES ; MECHANISM ; PARTICLES ; KINETICS ; MODEL ; FINE |
| Funding Project | National Natural Science Foundation of China[21736010] ; National Natural Science Foundation of China[21978300] ; National Natural Science Foundation of China[91334108] ; Innovative Research Group Project of National Natural Science Foundation of China[21921005] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China ; Innovative Research Group Project of National Natural Science Foundation of China |
| WOS ID | WOS:000575929100001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/42377 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhu, Qingshan |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Jun,Zhu, Qingshan,Li, Hongzhong. Relationship between reaction and diffusion during ultrafineNiOreduction toward agglomeration fluidization[J]. AICHE JOURNAL,2020:11. |
| APA | Li, Jun,Zhu, Qingshan,&Li, Hongzhong.(2020).Relationship between reaction and diffusion during ultrafineNiOreduction toward agglomeration fluidization.AICHE JOURNAL,11. |
| MLA | Li, Jun,et al."Relationship between reaction and diffusion during ultrafineNiOreduction toward agglomeration fluidization".AICHE JOURNAL (2020):11. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment