High hydrothermal stability of Cu-SAPO-34 catalysts for the NH3-SCR of NOx
文献类型：期刊论文
| 作者 | Niu, Can; He, Hong; You, Yan; Xie, Lijuan; Liu, Kuo; Liu, Fudong; Shi, Xiaoyan |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2016-06-15 |
| 卷号 | 294页码:254-263 |
| 关键词 | Cu-sapo-34 Nh3-scr Hydrothermal Stability Copper Species |
| DOI | 10.1016/j.cej.2016.02.086 |
| 英文摘要 | The effects of calcination temperature, Cu source and co-template contents on the activity and hydrothermal stability of Cu-SAPO-34 catalysts prepared by the one-pot hydrothermal synthesis method were investigated. Appropriate calcination temperature was important for the deNOx activity of Cu-SAPO-34 catalyst. The amount of Cu source and co-template in the resulting gel could impact the Cu loading and the crystallization of the final Cu-SAPO-34. Preferably, hydrothermal treatment of the Cu-SAPO-34 catalyst with Cu loading ca. 3.44% at 750 degrees C for 16 h increased the NH3-SCR activity slightly due to migration of CuO to isolated Cu2+ and the maintenance of the crystallinity as well as the acidity. Moreover, the catalyst aged at 800 degrees C for 16 h maintained >90% NOx conversion from 225 to 400 degrees C, and the crystallinity, active Cu2+ species and acidity in Cu-SAPO-34 were not destroyed completely after such harsh treatment. Meanwhile, kinetic analysis over fresh and aged Cu-SAPO-34 samples were conducted and the conclusion were in agreement with the NH3-SCR tests, H-2-TPR and NH3-TPD results. (C) 2016 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36233]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Niu, Can,He, Hong,You, Yan,et al. High hydrothermal stability of Cu-SAPO-34 catalysts for the NH3-SCR of NOx[J]. CHEMICAL ENGINEERING JOURNAL,2016,294:254-263. |
| APA | Niu, Can.,He, Hong.,You, Yan.,Xie, Lijuan.,Liu, Kuo.,...&Shi, Xiaoyan.(2016).High hydrothermal stability of Cu-SAPO-34 catalysts for the NH3-SCR of NOx.CHEMICAL ENGINEERING JOURNAL,294,254-263. |
| MLA | Niu, Can,et al."High hydrothermal stability of Cu-SAPO-34 catalysts for the NH3-SCR of NOx".CHEMICAL ENGINEERING JOURNAL 294(2016):254-263. |
入库方式： OAI收割
来源：生态环境研究中心
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