Simultaneous removal of NOx and SO2 by low-temperature selective catalytic reduction over modified activated carbon catalysts
- 作者: Liu Y.1, Ning P.1, Li K.1, Tang L.1, Hao J.1,2, Song X.1, Zhang G.1, Wang C.1
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隶属关系:
- Faculty of Environmental Science and Engineering
- Department of Environmental Science and Engineering
- 期: 卷 91, 编号 3 (2017)
- 页面: 490-499
- 栏目: Chemical Kinetics and Catalysis
- URL: https://bakhtiniada.ru/0036-0244/article/view/169326
- DOI: https://doi.org/10.1134/S003602441703030X
- ID: 169326
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详细
A series of modified porous activated carbon (AC) catalysts prepared by impregnation were investigated for the low-temperature (≤250°C) selective catalytic reduction (SCR) of NOx with NH3 with simultaneous removal of SO2. The effects of various preparation conditions and reaction conditions on NO and SO2 conversions were observed, such as support type, active components, copper loading, calcination temperature and presence of H2O and O2. The modified AC catalysts were characterized by BET, XRD, TG and TPX methods. The activity test results showed that the optimal catalyst is 15% Cu/WCSAC which can provide 52% NO conversion and 68% SO2 conversion simultaneously at 175°C with a space velocity of 30000 h‒1, and the optimal calcination temperature was 500°C. The presence of H2O could inhibit NO conversion and promote the SO2 conversion. The effect of O2 (0–5%) was evaluated, and the NO and SO2 conversions were best when the concentration of O2 was 3%. Research demonstrated that Cu/WCSAC catalyst was a kind of potential catalysts due to the amorphous phase, high specific areas and high active ability.
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作者简介
Ye Liu
Faculty of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500
Ping Ning
Faculty of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500
Kai Li
Faculty of Environmental Science and Engineering
编辑信件的主要联系方式.
Email: likaikmust@163.com
中国, Kunming, 650500
Lihong Tang
Faculty of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500
Jiming Hao
Faculty of Environmental Science and Engineering; Department of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500; Beijing, 100084
Xin Song
Faculty of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500
Guijian Zhang
Faculty of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500
Chi Wang
Faculty of Environmental Science and Engineering
Email: likaikmust@163.com
中国, Kunming, 650500
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