Loading...
Please wait, while we are loading the content...
Similar Documents
Effects of SO2 on Cu-SSZ-39 catalyst for the selective catalytic reduction of NOx with NH3
| Content Provider | Semantic Scholar |
|---|---|
| Author | Du, Jinpeng Shi, Xiaoyan Shan, Yulong Xu, Guangyan Sun, Yuwei Wang, Yingjie Yu, Yunbo Shan, Wenpo |
| Copyright Year | 2020 |
| Abstract | In this work, the Cu-SSZ-39 catalyst was sulfated at different temperatures (200 °C, 400 °C or 600 °C) in the presence of water to investigate the effects of sulfation on its catalytic performance in NH3-SCR. Sulfation at 200 °C and 400 °C resulted in a significant decrease in NOx conversion at low temperatures, while sulfation at 600 °C showed only slight effect on the SCR activity of Cu-SSZ-39. The coverage of active sites by H2SO4 was the main reason for the deactivation of the catalyst sulfated at 200 °C and 400 °C, while the formation of stable CuSO4 species should also be responsible for the catalytic activity loss of the catalysts sulfated at 200 °C, 400 °C and 600 °C. After regeneration at 600 °C, the activities of the sulfated catalysts could be recovered partially but were still lower than those of the fresh catalysts, due to the formation of stable sulfated Cu species. |
| Starting Page | 1256 |
| Ending Page | 1263 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c9cy02186h |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c9/cy/c9cy02186h/c9cy02186h1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/c9cy02186h |
| Volume Number | 10 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
