| Kinetic model of CaO/fly ash sorbent for flue gas desulphurization at moderate temperatures | |
| Li, YuRan ; Qi, HaYing ; You, ChangFu ; Xu, XuChang | |
| 2010-05-11 ; 2010-05-11 | |
| 关键词 | kinetic model activation energy gas diffusion SO2 CAO Energy & Fuels Engineering, Chemical |
| 中文摘要 | Characteristics of the sulphation reaction between SO2 and CaO/fly ash sorbent were analyzed based on TGA results to develop a kinetic model for a dry moderate temperature (400-800 degrees C) FGD process. It was found that SO2 diffusion within sorbent particles involved three sub-processes: inter-particle diffusion, inter-grain diffusion and diffusion through product layers and the diffusion dominated the whole sulphation reaction process. The activation energy for product layer diffusion E-diff of 49.3 kJ mol(-1) being greater than the chemical reaction activation energy E-a of 13.9 kJ mol(-1) verified the importance of the diffusion. Predictions using the kinetic model in which k(0) varies with temperature agree well with the experimental data. (c) 2006 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 ; 英语 |
| 出版者 | ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/25743]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Li, YuRan,Qi, HaYing,You, ChangFu,et al. Kinetic model of CaO/fly ash sorbent for flue gas desulphurization at moderate temperatures[J],2010, 2010. |
| APA | Li, YuRan,Qi, HaYing,You, ChangFu,&Xu, XuChang.(2010).Kinetic model of CaO/fly ash sorbent for flue gas desulphurization at moderate temperatures.. |
| MLA | Li, YuRan,et al."Kinetic model of CaO/fly ash sorbent for flue gas desulphurization at moderate temperatures".(2010). |
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