Promotion of NH4HSO4 decomposition in NO/NO2 contained atmosphere at low temperature over V2O5-WO3/TiO2 catalyst for NO reduction
Promotion of NH4HSO4 decomposition in NO/NO2 contained atmosphere at low temperature over V2O5-WO3/TiO2 catalyst for NO reduction
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V2O5-WO3/TiO2催化剂在NO/NO2气氛中低温促进NH4HSO4分解还原NO
DOI：
10.1016/j.apcata.2018.04.025
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发表时间：
2018-06
影响因子：
5.5
通讯作者：
Ran Jingyu
中科院分区：
文献类型：
--
作者：
Wang Xiangmin;Du Xuesen;Zhang Li;Chen Yanrong;Yang Guangpeng;Ran Jingyu
Formation of NH4HSO4and its deposition on catalyst surface are the main obstacle for the application of NH3-SCR technology at low temperature. In this work, the deposited NH4HSO4was found to be highly active towards NOxin the NO/NO2contained atmosphere on the V2O5-WO3/TiO2catalyst. The reaction profiles indicate that the NO/NO2/O2mixture can rapidly react with NH4+of NH4HSO4above 100 °C, while NO/O2mixture can only strongly react with NH4HSO4above 300 °C. Regenerations of NH4HSO4-deactivated catalyst were performed in both NO/O2and NO/NO2/O2atmospheres and the performances were compared. Results from FTIR, XPS and EDS characterizations indicate the S-containing groups of deposited NH4HSO4will be stabilized as metal sulfate after NH4+is consumed by NOx. The BET and BJH analysis shows that the NO/NO2/O2mixture can recover the pore structure of NH4HSO4-deposited catalyst more effectively than NO/O2mixture does. The SCR activity tests reveal that the regeneration by NO/NO2/O2mixture can remarkably restore the activity of NH4HSO4-deactivated catalyst.
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V2O5-WO3/TiO2 催化剂上 NH3 选择性催化还原 NO 过程中 NH4HSO4 的形成和分解
影响因子：
7.5
作者：
Shi Ya-Juan;Shu Hang;Zhang Yu-Hua;Fan Hong-Mei;Zhang Ya-Ping;Yang Lin-Jun
通讯作者：
Yang Lin-Jun
影响因子：
7.3
作者：
Amiridis, MD;Wachs, IE;Kim, DS
通讯作者：
Kim, DS
影响因子：
7.4
作者：
J. Menasha;D. Dunn-Rankin;L. Muzio;J. Stallings
通讯作者：
J. Menasha;D. Dunn-Rankin;L. Muzio;J. Stallings
影响因子：
7.4
作者：
Muzio, Lawrence;Bogseth, Sean;Dunn-Rankin, Derek
通讯作者：
Dunn-Rankin, Derek
影响因子：
6.2
作者：
Tonghua Li;C. Lucasius;G. Kateman
通讯作者：
Tonghua Li;C. Lucasius;G. Kateman